Tag: Sulphuric Acid

Korea Zinc says it will partner with the US government to construct a critical minerals smelter in Clarksville, Tennessee, producing zinc, lead, and copper. Korea Zinc will begin site preparation next year, followed by phased commercial operations from 2029. The plant is planned to process around 1.0 million t/a of raw materials and turn out 540,000 st/a of finished products. Processing of gold, silver, and key strategic minerals such as antimony, indium, bismuth, tellurium, cadmium, palladium, gallium and germanium, are also planned in what is being touted as a "state-of-the-art" facility. Sulphuric acid and semiconductor-grade sulphuric acid will also be produced. The output will include 300,000 t/a of zinc production, 200,000 t/a of lead, 35,000 t/a of copper and 5,100 t/a of rare and strategic metals. Development will be through Korea Zinc’s US subsidiary, Crucible Metals.

A complete listing of all articles and news items that appeared in Sulphur magazine during 2025.

• CRU’s latest global sulphur forecast is for a January price peak before a decline, with the key downside risk being a sharper correction if the supply deficit closes faster than expected. The global sulphur market’s upward momentum has been slowing, with attention shifting to geopolitical risks in Iran. Despite limited physical disruption being reported, the upside risk to prices could be substantial. Following the US bombing of an Iranian nuclear facility back in June, supply from Iran became bottlenecked, despite good production levels, as vessel owners became unwilling to call at ports like Bandar Abbas due to the increased risk.

The switch towards battery technologies like lithium iron phosphate (LFP) is leading to major growth in demand for sulphur and sulphuric acid.

Madhya Bharat Agro Products has announced board approval for a major capacity expansion at its Dhule manufacturing facility. The expansion represents a comprehensive enhancement of the company's fertilizer production capabilities, including 330,000 t/a of diammonium phosphate and NPK fertilizer, a 66,000 t/a phosphoric acid plant, and a 396,000 t/a sulphuric acid plant. The expansion plan is part of a strategy of vertical integration in fertilizer production. The addition of phosphoric acid and sulphuric acid production capabilities will support the primary DAP/NPK manufacturing operations, creating operational synergies and potentially reducing input costs, according to the company.

Süd-Chemie discusses the importance of pressure drop in a sulphuric acid plant and the many benefits that can be gained from using a guard bed, typically in the first bed of the converter to safeguard the catalyst bed and increase campaign life.

Begg Cousland Envirotec reviews different mist eliminator types and some of the operational problems encountered which can be managed by correct installation, targeted cleaning or replacement, and selecting appropriate corrosion-resistant materials.

In this real world case study, Topsoe demonstrates how cost effective catalyst changes can result in significant production increase without any equipment changes or revamps, all while maintaining compliance with emission limits.

Recalibrate™ has developed a next generation sulphur burning plant to produce sulphuric acid with ultra-low sulphur dioxide and zero NOx emissions, designed to derisk the permitting process and increase speed to market for new sulphuric acid plants.

Metso - third part of order related to Almalyk MMC's copper smelter project booked - set to produce 1.8 million tpa of sulfuric acid