headerdrawing1.jpg (96365 bytes)

Sulphuric Acid on the WebTM Technical Manual DKL Engineering, Inc.

Knowledge for the Sulphuric Acid Industry Line.jpg (1139 bytes)

Sulphuric Acid on the Web

Introduction
General
Equipment Suppliers
Contractor

Instrumentation
Industry News
Maintenance
Acid Traders
Organizations
Fabricators
Conferences

Used Plants
Intellectual Propoerty
Acid Plant Database
Market Information
Library

Technical Manual

Introduction
General

Definitions
Instrumentation
Plant Safety
Metallurgial Processes
Metallurgical
Sulphur Burning
Acid Regeneration
Lead Chamber
Technology
Gas Cleaning
Contact
Strong Acid
Acid Storage
Loading/Unloading

Transportation
Sulphur Systems
Liquid SO2
Boiler Feed Water
Steam Systems

Cooling Water
Effluent Treatment
Utilities
Construction
Maintenance
Inspection
Analytical Procedures
Materials of Construction
Corrosion
Properties
Vendor Data

DKL Engineering, Inc.

Handbook of Sulphuric Acid Manufacturing
Order Form
Preface
Contents
Feedback

Sulphuric Acid Decolourization
Order Form
Preface
Table of Contents

Process Engineering Data Sheets - PEDS
Order Form
Table of Contents

Introduction

Bibliography of Sulphuric Acid Technology
Order Form

Preface
Contents

Sulphuric Acid Plant Specifications
 

Google Search new2.gif (111 bytes)

 

 

Sulphuric Acid - NEWS

 

Updated October 4, 2022

 

 

2022


Nyrstar’s Port Pirie lead smelter to shut for 55 days 
BASF introduces X3DTM, a revolutionary catalyst shaping technology for optimized catalyst performance
Stolberg lead plant remains shut while awaiting sale approvals 
Zimplats US$1,8 billion Capex to ease fertiliser shortages
Chemtrade Announces Joint Venture With Kanto Group 
Enami will initiate procedures to build a new smelter in Paipote
Workers in Chile strike at world's largest copper producer
Vedanta puts its copper smelter plant in Tuticorin on sale
Chile to Close Copper Mining Smelter After Environmental Emergency
Elessent Clean Technologies Increases Global MECS® Catalyst Prices
Earthworks start for new 500 000 t/y Kamoa copper smelter 
Itafos Announces Resumption of Sulfuric Acid Production and Sales at Arraias
Elessent Clean Technologies Increases Global MECS® Catalyst Prices
Elessent acquires DuPont’s Clean Technologies business


2020   2021

2019   2018   2017   2016   2015   2014   2013   2012   2011    2010  
2009   2008   2007   2006   2005   2004   2003   2002   2001    2000  
1999   1998



Nyrstar’s Port Pirie lead smelter to shut for 55 days
 

October 4, 2022 - Nyrstar’s Port Pirie lead smelter in Australia will shut for 55 days to implement capital expenditure to improve emissions and operational performance, the Belgium-based company said on Tuesday. 
Trafigura is a majority owner of Nyrstar, which declined to say how much lead Port Pirie produces. Port Pirie produced 160,000 tonnes of lead in 2018.  Germany’s Stolberg lead plant has not reopened because its sale to Trafigura has not been completed, Nyrstar said last week.  Global lead consumption is estimated by analysts at around 13 million tonnes this year and expectations are for a surplus this year and next.  Benchmark lead on the London Metal Exchange was trading around at $1,877 a tonne. That compares with last week’s $1,746 a tonne, the lowest since June 2020.

Stolberg lead plant remains shut while awaiting sale approvals 

September 30, 2022 - Germany's Stolberg lead plant has not reopened because its sale to Trafigura has not been completed, the commodities group's Nyrstar metals business said on Friday.  The plant, located in the west of Germany, was sold to Trafigura in July and was due to reopen after the sale was finalised.  "We currently do not have an update on when we expect to receive the relevant regulatory approvals," Nyrstar told Reuters.  "We plan to restart the facility after all closing conditions and receipt of regulatory approvals to transfer the assets have been obtained and when the plant is technically ready."  The plant, also known as Berzelius Stolberg, was among several German industrial businesses damaged by massive flooding in the west and south of the country in summer 2021 and declared force majeure on its contracts.  The Stolberg smelter largely supplies European battery producers with lead.  Stolberg produces 155,000 tonnes of lead and more than 100 different specifications of lead alloys as well as 130,000 tonnes of sulphuric acid.


BASF introduces X3DTM, a revolutionary catalyst shaping technology for optimized catalyst performance

September 28, 2022 - ASF introduces the novel X3D
TM technology, a new additive manufacturing technology for catalysts based on 3D printing. Catalysts produced with this technology feature an open structure, resulting in a reduction of the pressure drop across the reactor and a high surface area, significantly improving the catalysts’ performance. BASF has capabilities to supply commercial quantities.  The technology offers a greater freedom of catalyst design compared to conventional production technologies. It brings catalysts’ performance to the next level and helps to customize catalysts to customers’ specific conditions and needs by designing infill pattern, fiber diameter and orientation. Customers can benefit from an increased reactor output, higher product quality and lower energy consumption. The novel catalysts are mechanically robust and proven in commercial plant operation externally and for several years in BASF.  BASF can apply the technology to a wide variety of existing catalytic materials, including base or precious metal catalysts as well as carrier materials. BASF’s Sulfuric Acid catalysts O4-111 X3D and O4-115 X3D are the first catalysts produced with the new technology and are used in industrial plants.  “With this technology, we are able to provide catalysts that are tailored to our customers’ needs to help significantly boost their plant performance while reducing energy consumption and increasing sustainability at the customer level”, said Detlef Ruff, Senior Vice President, Process Catalysts at BASF. “BASF’s technical service team will work with customers to identify the best catalytic technology for their individual projects,” said Chris Wai, Vice President, Global Chemical Market Catalysts at BASF.

Zimplats US$1,8 billion Capex to ease fertiliser shortages
 

September 2, 2022 - ZIMBABWE’s largest platinum producer, Zimplats says the agriculture sector is set to access cheaper fertiliser under the US$1,8 billion Capital Expenditure projects initiative, which has tabled plans to set up a plant to produce sulphuric acid by-products.  The budget was approved last year and will be rolled out on a 10-year period commencing 2022.  The projects include those currently undergoing approval, and will concentrate on maintaining current production levels through mine replacements and upgrades.  Speaking to NewZimbabwe.com Business Thursday Zimplats Holdings head-corporate affairs, Sibusisiwe Chindove said one of the headline projects will produce sulphuric acid as a by-product.  “The fertiliser project is emanating from the US$1,8 billion expansion programme that we have been talking about. It comprises several projects which we will be rolling out from this year going forward over a ten-year period,” said Chindove.  “The establishment of an abatement facility to mitigate sulphuric dioxide emissions emanating from the current and expanded smelting capacity.  “So one of these projects is the construction of the plant and the by-product of that will be significant amounts of sulphuric acid which we believe will be useful in the manufacture of fertiliser,” she said.  The facility, Chindove added, will go a long way in buttressing the agricultural and mining nexus in the context of growing the economy at large.


Chemtrade Announces Joint Venture With Kanto Group
 

July 19, 2022 - Chemtrade Logistics Income Fund announced a joint venture with privately held Kanto Group for the greenfield construction of a high purity sulphuric acid plant. The joint venture, KPCT Advanced Chemicals LLC will build a plant in Casa Grande, Arizona with an expected start-up in 2024. The high purity production process will be based on Kanto Group technology, which is currently in use in Taiwan and Japan supplying the leading semiconductor producers in Asia. The plant will have a total annual capacity of approximately 100,000MT of electronic grade acid. The project is expected to cost between US$175 and US$250 million; however, detailed engineering plans and cost estimates are expected to be complete in Q4 2022. Kanto Group and Chemtrade own 51% and 49%, respectively, of this joint venture.  Scott Rook, President, and CEO of Chemtrade said, “We are excited to partner with Kanto Group, a global technology leader in high purity chemicals for electronic manufacturing. For years, Chemtrade has been the primary manufacturer of ultrapure sulphuric acid in the North American market. This joint venture allows us to expand our North American position and meet the growing needs of the semiconductor manufacturers.”  KPPC Advanced Chemicals Inc. CEO, Jerry Lu commented, “Kanto Group is pleased to partner with Chemtrade and to leverage both parties’ strengths to bring new high-quality sulphuric acid capacity to serve the growing North American electronic chemicals market.”
 

Enami will initiate procedures to build a new smelter in Paipote

June 28, 2022 - The National Mining Company revealed that it will seek to build a new plant in the Atacama Region, after the closure of the Ventanas smelter due to pollution episodes.  The repercussions continue after the government of Gabriel Boric announced the closure of the Ventanas division of Codelco, due to the contamination episodes in Quintero and Puchuncaví.  In this context, El Mercurio revealed that the National Mining Company (Enami) confirmed that this year it will start the environmental process to build a new smelter in Paipote, in the Atacama Region.  The executive vice president of Enami, Jaime Pérez de Arce, assured that the investment for the plant would exceed US$ 1,000 million.  Along the same lines, Pérez de Arce said that they will also request a Special Lithium Operation Contract (CEOL).  In the same way, from the state company they made a request for the project to be developed with the highest global standards in terms of pollution.


Workers in Chile strike at world's largest copper producer

June 23, 2022 - Workers at Chile's state mining company Codelco, the largest producer of copper in the world, launched an open- ended strike Wednesday to protest the closure of a foundry in one of the country's most polluted regions.  Police said they arrested 18 people as striking workers, waving Chilean flags and setting tires on fire, blocked entry to six mining facilities around the country. They did this mainly at the Ventanas foundry, which the government announced last week that it would shut down.The Copper Workers Federation said the strike will cost Codelco -- which produces around eight percent of the world's copper amounting to 10-15 percent of Chile's GDP -- $20 million a day. Marcel contested that figure.  Unions described the closure of the Ventanas foundry, located around 140 kilometers west of the capital Santiago, as "arbitrary," and are demanding the government invests $54 million to bring the plant up to the highest environmental standards.  Government spokeswoman Camila Vallejo said the government remains open to dialogue but that it was focused on "a more sustainable model of development."  Codelco's decision comes after an incident on June 9 when 115 people, mostly school children, suffered sulphur dioxide poisoning released by heavy industry, provoking the closure of schools in the area.  Sulphur dioxide is a classic air pollutant usually linked to the burning of fossil fuels.  Last week, President Gabriel Boric hit out at Chile's record on polluting the environment.  "There are now hundreds of thousands of people who live in our country exposed to severe degradation of the environment that we have provoked or allowed and, as a Chilean, that makes me feel ashamed."


Vedanta puts its copper smelter plant in Tuticorin on sale

June 20. 2022 -  Vedanta Ltd has decided to put its 4,00,000 ton per annum (tpa) copper smelter plant and refining complex at Tuticorin for sale. The copper smelter plant complex is known as Sterlite Copper. The company along with Axis Capital has called for Expression of Interest (EoI) for its smelter complex (primary and secondary), sulphuric acid plant, copper refinery, continuous copper rod plant, phosphoric acid plant, effluent treatment plant, 160 MW captive power plant, reverse osmosis units, oxygen generation unit and residential complex with amenities.  However, an environmental activist, who is against the Copper Smelter plant, wondered whether the company can sell the plant when a case is pending in the Supreme Court. The decision came as a surprise to many as the company was saying that it would reopen the plant. According to Vedanta, the plant produces about 40 per cent of the country's demand for copper and contributes about Rs 2,500 crore per annum to the exchequer and 12 per cent of Tuticorin Port's revenue.  Curiously last March, Vedanta came out with an EoI about its decision to set up a 500,000 tpa copper smelter plant in a coastal region in India. The company has sought expression of interest from coastal states wishing to partner in the project that would have an investment potential of about Rs 10,000 crore through a newspaper advertisement. According to Vedanta, the proposed project would need about 1,000 acre in proximity to port along with logistics connectivity with conveyor/corridor of rail and road to handle five million tpa material movement on both in-bound and out-bound sides.  The company said the project has a potential to provide direct and indirect employment to 10,000 people and will contribute about Rs 3,000 crore to the government treasury as taxes and others. Senior officials were not available to reply IANS query whether the company is exiting Tuticorin. Later in a statement, the company said India's copper requirements are set to grow exponentially in the coming years.  Having ample supplies of copper is critical to ensuring successful implementation of new-gen technologies such as electric vehicles, rapid automated transport and clean energy, the company said. "We are, therefore, actively on the lookout for a suitable partner state to help take forward the vision of an Atmanirbhar Bharat and ensure that our nation enjoys unfettered access to copper, through a state-of-the-art copper manufacturing plant, the operational and environmental parameters of which are comparable to the best in the world," Vedanta said. According to Vedanta, the closure of Tuticorin copper smelter plant has had a ripple effect in terms of imports and livelihoods. "Post closure, India has become a net importer of copper for the first time in 18 years, with copper imports growing 3X while exports have plunged by 90 per cent. We are continuing to explore all legal avenues towards achieving a sustainable solution to the closure," the company had said. The Tamil Nadu government had ordered the copper smelter plant to be shut down in 2018 following a violent protest that led to the death of 13 persons in police firing. The 4,00,000 ton Sterlite Copper smelter plant that has been operating in Tuticorin for over 25 years with a cumulative investment of about Rs 3,000 crore. However, from the start, Sterlite Copper smelter plant has been facing protests by the local people alleging that it pollutes the environment. Originally, the plant was planned in Goa, but it faced severe opposition from the state's people. However, the AIADMK regime under J. Jayalalithaa gave a warm welcome to the project and allotted land at Tuticorin.  Ever since then the plant was in the eye of a storm with MDMK leader Vaiko leading a protest against the project and later filing a case. The major political parties in Tamil Nadu -- AIADMK and DMK -- are against Vedanta's copper smelter plant in Tuticorin. The Supreme Court is hearing the case on an appeal filed by the company against the Madras High Court's refusal to reopen the Sterlite Copper smelter plant in Tuticorin. Reacting to the latest advertisement Fatima Babu, one of the persons who had filed a case against Sterlite Copper told IANS: "It has to be seen whether the company can sell the plant when a case is pending in the Supreme Court. There seems to be a hidden agenda in the advertisement as it makes several claims like state-of-the-art plant and others." "Our stand is clear. The copper smelter plant should not be in Tuticorin whether under the name Sterlite Copper owned by Vedanta or by any other owner," she said. She added that if Vedanta wants to set up a new copper smelter then it can do so by complying with the law anywhere else.


Chile to Close Copper Mining Smelter After Environmental Emergency

June 17, 2022 - Chile President Gabriel Boric Friday said the state-owned copper producer would begin the closure of the troubled Ventanas smelter after dozens fell ill due to an environmental emergency in the vicinity of the plant.  Codelco decided to close the facility after a peak in sulfur dioxide emissions in the area affected hundreds of high school students and teachers in the region in recent weeks.  “Codelco’s board of directors has decided to move toward the closure of operations at the Ventanas Smelter,” the president said.  He said a thorough study and talks with stakeholders preceded the decision to shut down the facility.  The president announced the decision from the Palace of La Moneda in Santiago after a group of workers protested against the anticipated measure.  He said the closure would be gradual.  “We have said it very clearly, we do not want more sacrifice zones. Thousands live exposed to the environmental deterioration that we have caused and allowed and that as a Chilean embarrasses me.”  The Quintero-Puchuncaví Bay, 160 km northwest of Santiago on the Chilean coast, was declared an “environmental sacrifice zone,” in 1993.  It meant a territory abandoned to industrial deterioration and pollution, permanently affecting human health and biodiversity.  The president assured the affected plant workers and their families that the government would not leave them alone.  “Our government is taking all the necessary steps so that this decision does not negatively affect the workers of the company,” he said.  “I can affirm that no worker will be left jobless. No Codelco worker will be left unprotected, their positions are secured.”  Andrea Cruces, the president of Ventanas union, labeled Codelco board chairman Máximo Pacheco a “traitor.”  Cruces said Pacheco would “be remembered in history as the one who betrayed Chilean mining.”  “You sold us and told the government that you were going to close the windows without a confrontation.”  Multiple cases of poisoning were reported with up to more than 100 students taking ill in the region.  Dozens of students from an educational institute in Quintero developed symptoms like dizziness and headaches on Friday morning.


Elessent Clean Technologies Increases Global MECS® Catalyst Prices

May 23, 2022 - Elessent Clean Technologies has announced an additional global price increase of $0.60/liter for its MECS ® sulfuric acid catalyst products. Additional surcharges may apply for freight, near term delivery and specialty product grades. Subject to the terms of applicable contracts, the new pricing will take effect immediately.

Earthworks start for new 500 000 t/y Kamoa copper smelter
 

May 3, 2022 - In its endeavours to ramp up copper production and become the third-largest copper producer, diversified miner Ivanhoe Mines has started earthworks on a 500 000 t/y direct-to-blister flash smelter at its Democratic Republic of Congo- (DRC-) based and 39.6%-owned Kamoa-Kakula copper
 mining complex.  The smelter – with a nameplate capacity to produce 99%-pure blister copper – has been sized to process most of the copper concentrate forecast to be produced by Kamoa-Kakula's Phase 1, Phase 2 and Phase 3 concentrators.  The smelter will be built adjacent to the Phase 1 and 2 concentrator plants and is designed to use technology supplied by Metso Outotec, meeting the International Finance Corporation’s emissions standards.  In late 2021, Kamoa Copper awarded engineering company China Nerin Engineering the basic engineering contract for the planned smelter.  Ivanhoe notes that Nerin actively promotes the advancement of smelting technology through its own research and development, and establishing various partnerships with global industry peers, including Metso Outotec.  Once in operation, the smelter is expected to enable Kamoa-Kakula to reduce its cash costs per pound of payable copper produced by about 10% to 20%, driven by significantly reduced transportation costs, reducing overall volumes shipped by more than half, as well as more favourable tax treatment, and the recovery and sale of sulphuric acid as a by-product revenue.  Ivanhoe says there is strong demand and a market for sulphuric acid in the DRC to recover copper from oxide ores. Copper mines in the region currently import significant volumes of sulphur used in sulphur-burning acid plants to produce sulphuric acid for the treatment of oxide copper ores. The DRC also imports sulphuric acid, primarily from Zambia.  The Phase 3 expansion of Kamoa-Kakula complex is also on track to take the mine into third place on a global copper production scale, increasing yearly copper production capacity to about 600 000 t by the fourth quarter of 2024.  Kamoa-Kakula’s Phase 3 will consist of two new underground mines known as Kamoa 1 and Kamoa 2, as well as the initial decline development at Kakula West.A new, five-million-tonne-a-year concentrator plant will be established adjacent to the two new mines at Kamoa, taking total processing capacity to more than 14-million tonnes a year.  Going forward, the existing Phase 1 and 2 concentrators will be de-bottlenecked and operating at a combined throughput of 9.2-million tonnes a year by the second quarter of 2023, which is expected to increase Kamoa-Kakula’s copper production to more than 450 000 t/y.  Meanwhile, negotiations for an amendment to Kamoa-Kakula’s offtake arrangements for Phase 2 production are nearly complete, with copper product currently being shipped under existing, Phase 1 agreements.  Kamoa-Kakula’s Phase 3 expansion will be powered by hydroelectricity through Kamoa Copper’s Inga II partnership, which is expected to generate an additional 178 MW of renewable hydropower for the DRC.  Ivanhoe co-chairperson Robert Friedland says that, along with its joint venture partner Zijin Mining, Ivanhoe is resolved to expedite future expansion phases at Kamoa-Kakula to meet rapidly rising copper demand, create profitable growth for shareholders, and long-lasting economic and social benefits for the Congolese nation and people.

Itafos Announces Resumption of Sulfuric Acid Production and Sales at Arraias

February 8, 2022 - Itafos Inc. announced today the resumption of sulfuric acid production and sales at Arraias. The recommissioning of the previously idled sulfuric acid plant was completed on schedule, within budget and with no reportable environmental releases or recordable incidents.  “We are pleased to have safely and successfully completed the recommissioning of the sulfuric acid plant at Arraias. While we continue to evaluate strategic alternatives for Arraias, we are opportunistically restarting the sulfuric acid plant to supply market demand and deliver positive margins,” said G. David Delaney, CEO of Itafos.  Arraias’ sulfuric acid plant has production capacity of 220kt per year. The Company expects to operate the sulfuric acid plant at Arraias with a base load capacity of approximately 10.5kt per month. Arraias has secured short-term sulfuric acid offtake agreements for its base load capacity with pricing linked to sulfur benchmarks. Based on market demand, the Company expects to opportunistically produce additional volumes of sulfuric acid to be sold on the spot market.  The remainder of the infrastructure associated with Arraias’ vertically integrated phosphate fertilizer business, including its mine, beneficiation plant, acidulation plant and granulation plant remain idled following best practices.


Elessent Clean Technologies Increases Global MECS® Catalyst Prices

February 4, 2022 - Elessent Clean Technologies has announced an additional global price increase of $0.30/liter for its MECS ® sulfuric acid catalyst products. Additional surcharges may apply for freight, near term delivery and specialty product grades. Subject to the terms of applicable contracts, the new pricing will take effect immediately.

Elessent acquires DuPont’s Clean Technologies business

January 1, 2022 - 1 January 2022 marked the beginning for Elessent Clean Technologies as an international private equity consortium, consisting of BroadPeak Global LP, Asia Green Fund (AGF) and The Saudi Arabian Industrial Investments Company (Dussur).  The international private equity consortium also completed its transaction to purchase the Clean Technologies business of DuPont de Nemours Inc. on 31 December 2021.Elessent Clean Technologies is a global leader in process technologies to drive sustainability and carbon neutrality in the metal, fertilizer, chemical and oil refining industries. Elessent retains exclusive rights to the technologies, expertise, products, and services including: MECS
® sulfuric acid and environmental technologies, BELCO® scrubbing technologies, STRATCO® alkylation technology and IsoTherming® hydroprocessing technology.“We are excited about what the future holds for us as a standalone company,” said Elessent CEO, Eli Ben-Shoshan, “The strong global expertise of the Group will accelerate our mission to deliver the technology and tailored solutions our customers need to more efficiently produce cleaner products for the world.”The name ‘Elessent’ is derived from the words ‘element’ and ‘essential’. From the production of carbonless energy to the production of sulfuric acid for the metals and fertilizer industries, and from removal of sulfur from refined oil products to air pollution control, Elessent creates clean alternatives to traditional industrial processes to minimise the impact on the environment while enabling its customers to produce essential elements critical to everyday life.