Tag: Sulphuric Acid

Due to an increasingly challenging market, Nyrstar will indefinitely lower production at its Hobart zinc smelter in Tasmania by around 25%. The plant’s zinc capacity is 280,000 t/a. “This decision follows a thorough and extensive review and is a direct response to deteriorating market conditions and financial losses being sustained by Nyrstar Australia,” the Trafiguraowned company said. “Nyrstar’s Australian assets continue to face significant financial challenges due to several external factors including worsening conditions in raw material markets, negative treatment charges and increased costs.”

Rheinhütte Pumpen has further developed its GVRN sulphuric acid pump so it can also be used in high-temperature applications such as in heat recovery systems.

The Self-Cleaning Liquid Sulphur Candle Filter (LSCF) is setting a new benchmark in liquid sulphur filtration. With its innovative candle arrangement and advanced back-flushing technology, it enhances filtration rates significantly and minimises downtime for cake discharge. Jan Hermans of Sulphurnet explores the LSCF design, process parameters, and operational advantages.

Indonesian nickel miner Merdeka Battery Materials (MBMA) and partners have signed definitive agreements to construct a high-pressure acid leach (HPAL) plant on the Morowali industrial park, Sulawesi. The unit will have a nameplate capacity of 90,000 t/a of contained nickel in mixed hydroxide precipitate (MHP). PT Sulawesi Nickel Cobalt (SLNC) will construct and operate the plant adjacent to the existing HPAL plant operated by PT Huayue Nickel Cobalt (HNC). SLNC will source and process laterite nickel ore through a 20 year commercial agreement with MBMA's SCM mine, starting from the commissioning date. An ore preparation plant will be built at the SCM mine to enable ore transportation via pipeline to the SLNC processing plant at IMIP. The total combined investment for constructing SLNC (including interest incurred during construction) is expected to be approximately $1.8 billion according to Merdeka. Construction of the project commenced in January 2025 and is expected to reach commissioning stage within 18 months.

Anglo American and Codelco have signed a memorandum of understanding (MoU) with the aim of jointly developing their neigh-bouring Los Bronces and Andina copper mines in central Chile.

• Sulphur prices have been revised higher in the latest forecast after supply from the Middle East was lower than expected in February, and buyers with uncovered demand were forced to chase prices upwards. UAE sulphur exports normally fall at the start of the year due to scheduled maintenance, but sales in February this year were 200,000 tonnes short of what is typical. Prices may climb more than expected as buyers scramble to cover their shorts. If supply is slower to return than currently anticipated, momentum may push prices even higher in the short term.

Jordan’s Prime Minister Jaafar Hassan laid the foundation stone for the second phase of Jordan Phosphate Mines (JPMC) new sulphuric and phosphoric acid plants at Al-Shidiya in a ceremony in mid-February. The Phase II expansion aims to increase the sulphuric acid plant's production capacity from 2,200 t/d to 4,450 t/d (1.5 million t/a). The phase will generate an additional 20 MW of energy per hour, with the potential to export 9 MW. The project will also boost the production capacity of the phosphoric acid plant from 900 t/d to 1,600 t/d (equivalent to 550,000 t/a P2 O5 ). Construction is expected to be completed, and operations begun by September of this year. With the expansion of the industrial complex in Aqaba and future projects involving potash and partnerships in the phosphoric acid industry, JPMC plans to increase its local consumption to 70%, while reducing external exports by 30%.

Sulphur’s key role as a plant nutrient means that its use as a fertilizer continues to be a major area of demand.

BHP has awarded a significant engineering, procurement, and construction management (EPCM) contract to a joint venture between Fluor Australia Pty Ltd and Hatch Pty Ltd. The A$40 million contract is for the first phase of the proposed expansion of BHP's copper smelter and refinery facilities in South Australia, as the company moves towards a final investment decision on the smelter and refinery expansion, currently anticipated in the first half of FY27. The initial stage focuses on strategic planning and development during the project's study phases. Subsequent stages will cover detailed engineering, procurement, and construction management as the project advances.

LKAB has begun construction of its new demonstration plant for processing phosphorus and rare earth elements at Luleå. The facility is the first in a planned industrial park and, says LKAB, marks an important step in the company's ambition to diversify its business with new minerals. The supply of phosphorus for mineral fertilizers is essential for food security in Sweden and the EU, while rare earth elements are critical for the electrification and digitalisation of society, such as the production of permanent magnets for electric vehicles and wind turbines. The $75 million demonstrator plant is planned to become operational in 2026. The aim is to further develop and verify the process for utilizing material flows from iron ore production in Gällivare, where apatite concentrate is produced for further refinement and production of critical minerals in Luleå. Through a stepwise expansion, the operations can then be scaled up with additional processing facilities over time, aiming for full operation during the 2030s. Once fully operational, the industrial park’s production will be approximately seven times Sweden’s needs and 6% of the EU’s demand for phosphorus in agriculture. Currently, there is no mining of rare earth elements in Europe.