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Latest chlor-alkali electrolyzer from thyssenkrupp nucera and MDI production facility as well as corresponding porudctions of 60,000 tpa chlorine and 200,000 tpa of MDI have been modelled.

#thyssenkrupp #nucera #chloralkali #mitsui #phosgenation #isocyanates #mdi #chlorine #electrolyzer

From the 1874 Deacon process to today's advanced RuO₂ catalysts - comprehensive overview of the technologies converting waste HCl to valuable chlorine, now published on ppPLUS.

Covers: Process chemistry, reactor designs, economics vs. electrolysis, and all major commercial technologies (Sumitomo Chemical, Mitsui Chemicals Group, Wanhua Chemical Group, Covestro, BASF).

📖 Essential reading for anyone in isocyanates, PVC, or specialty chemicals dealing with HCl management.

#deaconprocess #hcloxidation #chemicaltechnology #processengineering #chlorinerecovery

The ODC principle is based on the reduction of oxygen at the cathode. The oxygen then reacts with the hydrogen ions, which migrate through the membrane from the anode side of the cell. This suppresses the generation of hydrogen and forms water (H₂O):

Chemical equations:

• Anode (oxidation):
• Cathode (ODC reduction):
• Overall:

2 Cl⁻ → Cl₂ + 2e⁻
O₂ + 4 H⁺ + 4e⁻ → 2 H₂O
4 HCl + O₂ → 2 Cl₂ + H₂O

Compared to the Standard reaction for hydrogen generation, the ODC Process reduces the required operating voltage by approximately 1 volt, resulting in consequent energy savings.

The ODC process find applications in isocyanate plants by recycling HCl from phosgene production, for chlorine recovery from various HCl waste streams, and in integrated chemical complexes where hydrogen is not required.

#electrolyzer #electrolysis #hydrogenchloride #hclrecycling #odc #isocyanate #chlorinerecovery #thyssenkrupp #covestro #denora #phosgene

Just published a comprehensive update on HCl electrolysis technology in the Portfolio Planning PLUS Ltd database - a critical process for chlorine recovery, in particular in isocyanate manufacturing.

KEY HIGHLIGHTS:
✅ Three commercial technologies compared: ODC, Diaphragm, and Membrane cells
✅ Energy efficiency gains: ODC process delivers 30% energy savings (733-1070 kWh/t Cl₂)
✅ Process integration: Detailed plant configurations for each technology variant
✅ Industrial applications: Focus on chlorine recycle in MDI/TDI production

#chemicalengineering #processtechnology #isocyanates #chlorinerecovery #hclrecycling #denora #thyssekruppnucera #covestro

The Mitsui carbonyl chloride (phosgene) technology is a process that is integrated with the isocyanate manufacturing process.

We have analyzed Mitsui patents to reverse engineer the process and generate a simplified process flow diagram.

#mitsui #phosgene #carbonylchloride #isocyanate #chlorine #carbonylation

This article not only clarifies the state-of-the-art production of phosgene from chlorine and carbon monoxide, but also highlights the downstream links to key value-adding sectors like isocyanates (polyurethanes) and polycarbonates.

With reliable process fundamentals, industry context, and licensing insights, this piece supports value chain analysts, strategists, and technologists seeking transparency on one of the most important nodes in chemicals manufacturing.

Whether you’re modeling global chlorine-product flows, evaluating risk exposure, or benchmarking technology, you will find this a valuable contribution to the chlorine value chain.

#basf #bayer #wanhua #bussag #busschemtech #kmci #kumhomitsuichemicals #dow #paushak #phosgene #chloralkali #chlorine #isocyanates #polyurethane #polycarbonate

Dortmund/Milan | thyssenkrupp nucera | June 24, 2025 — Chemical Marketing and Distribution Company (CMDC), a subsidiary of Basic Chemical Industries (BCI) Group, has awarded a key contract to thyssenkrupp nucera for a major expansion of its chlor-alkali plant in Jubail Industrial City. The contract, valued at approximately EUR 15 million, will see thyssenkrupp nucera supply advanced membrane technology, deliver essential equipment and spare parts, and provide comprehensive engineering services. The project is expected to boost the plant’s production capacity by 40%, significantly increasing output of caustic soda, sodium hypochlorite, hydrochloric acid, and liquid chlorine. Completion is scheduled within 19 months.

This expansion reflects BCI Group’s ongoing commitment to supporting Saudi Arabia’s industrial growth and Vision 2030 goals. Founded in 1973 and headquartered in Dammam, BCI has grown to become the largest privately owned chemical company in the Kingdom, with a strong presence across the GCC region. The group operates through several subsidiaries, with core activities spanning chlor-alkali manufacturing, water treatment solutions, industrial adhesives, polyurethane systems, and specialty chemicals. BCI is recognized as one of the earliest and most innovative chlor-alkali producers in the region, introducing state-of-the-art membrane technology as early as 1983 to ensure high-quality, environmentally responsible production.

BCI’s strategic location in Saudi Arabia’s industrial heartland enables it to efficiently serve major clients in the oil and gas, water treatment, and industrial sectors, both domestically and in neighboring Gulf countries. The Jubail plant’s expanded capacity will further enhance BCI’s ability to supply critical chemical products to local industries and export markets in Bahrain, Kuwait, the UAE, and Oman.

The partnership between CMDC and thyssenkrupp nucera builds on a long-standing relationship, leveraging cutting-edge technology to maintain high standards of safety, efficiency, and environmental performance. This investment underscores BCI Group’s role as a key enabler of Saudi Arabia’s industrial diversification and its ongoing leadership in the regional chemical sector.

#thyssenkrupp #nucera #chloralkali #membranetechnology #electrolysis #chlorine #causticsoda

#naocl #hypochlorite #chlorinebleach #sodiumhypochlorite #chloralkali

#chloralkali #bichlor #ineos #chlorine #causticsoda #hydrogen #electrolyser

Asahimas Banten factory and its main chemical production facilities with their respective production capacities have been added.


#agc #asahimas #chloralkali #vcm #vinylchloride #pvc #indonesia #causticsoda #edc #chlorine #hydrogen

The description of AGC Inc. has been updated, and all 6 chemicals and glass manufacturing plants in Japan have been created.


#agc #asahiglass #japan #chloralkali #causticsoda #chlorine #electrolysis #hydrogen

#agc #asahiglass #chloralkali #chlorine #causticsoda #electrolysis #hydrogen #japan

Goh, Jun Lai, Cheng Yi

#agc #asahiglass #chloralkali #chlorine #causticsoda #electrolysis #hydrogen #japan

thyssenkrupp nucera chlor-alkali technology has been added.


#thyssenkrupp #nucera #chloralkali #chlorine #electrolysis #electrolyzer #caustic

#chloralkali #soada #chlorine #peru #quimpac

Hubei Daily 2024-09-20 18:31:05

Hubei Daily News (Reporter Huang Lu, Correspondents Sun Yilin and Feng Jun) On September 20, Qianjiang held a concentrated start-up event for major projects in the third quarter of 2024, among which the Jianghan Salt Chemical Fine Chemicals and Supporting Engineering Project with a total investment of 10.8 billion yuan was announced to start construction.

The Jianghan Salt Chemical Fine Chemical and Supporting Engineering Project is located in Wangchang Park, Qianjiang High-tech Zone, and is invested and constructed by Jianghan Salt Chemical, the world's largest chlorine-containing disinfectant manufacturer. The project will further expand the basic scale of Jianghan Salt Chemical, and the park's steam, liquid alkali, chlorine and hydrogen supply capacity will be more sufficient; the newly built 30,000 tons/year bleaching powder concentrate unit will refine the characteristic business of Jianghan Salt Chemical, increase the international market supply of bleaching powder concentrate, and effectively increase the market share; the newly built 50,000 tons/year chlorinated polyethylene (CPE) unit will extend the Jianghan Salt Chemical industry chain, enrich the product variety, and initially show diversified development. After the project is completed and put into production, it is expected to have an average annual operating income of about 7.7 billion yuan, directly creating more than 1,200 jobs.

"Jianghan Salt Chemical Industry utilizes abundant brine resources to build fine chemicals and supporting projects, which will help the development of Hubei's salt chemical industry cluster." A relevant person in charge of Qianjiang Municipal Development and Reform Commission introduced that Hubei Province has formed a strategy of relying on Jianghan Salt Chemical Industry, making full use of its basic chemical raw materials such as chlorine, hydrogen, caustic soda, attracting domestic leading companies in the same industry with high industrial correlation to enter the park, extending the salt chemical industry chain, and developing a circular economy.

#china #qianjiang #hubei #jianghan #saltchemical #chloralkali #chlorine #hydrogen #causticsoda #hydrogen

Mahatma Chlor-Alkali site (Photo by Hu Hui)

China-Thailand Zero Distance May 20, 2024 17:11

Recently, the Ministry of Industry and Information Technology’s official website announced that Mahatma Energy’s Chlor-Alkali Plant was listed in the list of “leaders” in energy efficiency in key industries across the country with its unit product energy consumption index of 151.91 (kgce/t) for the calcium carbide method (general type) in the polyvinyl chloride industry. This honor is not only a recognition of Mahatma Energy’s achievements in energy efficiency management, but also reflects that Zhongtai Group has taken solid steps on the road to sustainable development.

"At present, Mahatma Energy Chlor-Alkali Plant has adopted advanced energy-saving technologies, continuously optimized production processes, and continuously improved resource utilization efficiency and reduced energy consumption and carbon emissions through projects such as cascade utilization of wastewater and recovery of waste heat from boiler flue gas." said Liu Kai, director of the Technical Department of Mahatma Energy Chlor-Alkali Plant.

In recent years, Mahatma Energy Chlor-Alkali Plant has always adhered to the core concept of green manufacturing, energy conservation and carbon reduction, and has implemented it throughout all aspects of the company's production and operation. By widely carrying out mass quality management, "Five Smalls" mass innovation, and all-staff "Golden Ideas" and other activities, it has stimulated employees' vitality to actively participate in innovation, encouraged employees to give full play to their creativity, and brought technological innovation and production improvements to the company.

In 2024 , Shengxiong Energy Chlor-Alkali Plant will continue to increase investment in energy-saving and emission-reduction innovation projects in the transformation of high-current-density bipolar zero-gap natural circulation electrolyzers and comprehensive utilization of waste heat, further promote technological innovation and industrial upgrading, and effectively improve the company's energy efficiency management level. At the same time, it will actively cooperate and communicate with advanced companies in the industry, learn from advanced experience and technology, and make greater contributions to achieving the company's sustainable development goals.


#chloralkali #electrolyser #pvc #causticsoda #chlorine #mahatmaenergy #shengxiongenergy #china #xinjiang #turpan

#chloralkali #chlorine #caustic #causticsoda #natriumhydroxide #hydrogen #electrolysis #waterelectrolysis #membranecell #membranecellprocess #ptfe

Liquid chlorine has been added.

#chlorine #chloralkali

#chloralkali #chlorine #caustic #causticsoda #natriumhydroxide #hydrogen #electrolysis #waterelectrolysis #membranecell #membranecellprocess

#spchemical #taixing #china #chloralkali #causticsoda #vcm #chlorine