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Category: Asia

KazZinc to invest in increased SO2 recovery

Kazakhstan Zinc (KazZinc) is progressing with plans to reduce sulphur dioxide emissions from its Ust-Kamenogorsk site following an environmental audit in December 2024 as a result of smogs caused fugitive emissions which forced residents to stay indoors. The site has reduced emissions from 69,000 t/a in 2011 to 15,000 t/a, but plans to invest $210 million in in new technologies, including sulphur dioxide recovery systems and upgraded filters for solid particle capture. The key measure is the modernisation of gas purification units which is expected to reduce SO2 emissions by 2,200 t/a by 2026. Another important initiative is the construction of the “Hydropolimet” workshop at the KazZinc Ridder metallurgical complex, which aims to reduce sulphur dioxide emissions by 714 t/a.

Smelters process Chilean concentrate for free

The mid-year negotiations between Antofagasta (AMSA) and Chinese smelters have concluded with a historic settlement of $0/0¢. While unprecedented, the outcome is not surprising, as it lands slightly above the midpoint of the believed negotiating range, from -$15/-1.5¢ proposed by Antofagasta +$10/1.0¢ from the Chinese smelters. Moreover, this result aligns with market participants' rumours circulating prior to the agreement. Separately, rumours suggest Q3 contract negotiations between one top miner and Chinese smelters concluded at levels ranging from -$25/-2.5¢ to (+)$5/0.5¢.

Production begins at Dukouhe-Qilibei

PetroChina has started production at Dukouhe-Qilibei, the last of three major sour gas fields in its high-sulphur Chuandongbei cluster in southwest China. The Dukouhe-Qilibei field’s hydrogen sulphide content reaches up to 17.1%, the highest of any integrated gas field currently in production in China. PetroChina confirmed that commissioning was completed on 30 June, with the Dazhou gas processing plant now running at its full design capacity of 4 million cubic metres per day. The Chuandongbei cluster originally comprised three key sour gas block: Luojiazhai, Tieshanpo, and Dukouhe-Qilibei, and was initially developed under a partnership between Chevron and PetroChina, with Chevron leading the early-phase project development. However, Chevron exited the project in 2020, transferring full control to PetroChina following operational delays and cost challenges. PetroChina says that the completion of Dukouhe-Qilibei solidifies its capabilities in handling high-sulphur content gas fields and marks a significant boost to China’s domestic gas supply, particularly in inland regions with growing industrial demand. n

Turkmenabat reports production figures

The S.A. Nyyazov Chemical Plant in Turkmenabat produced 115,850 tonnes of sulfuric acid during the first five months of this year, according to local press reports. The plant also produced 11,297 tonnes of mineral fertilizers over the same period, including 5,227 tonnes of nitrogen-based and 6,070 tonnes of phosphorus-based fertilizers. The Turkmenistan government recently approved the construction of a new plant at the facility to produce 350,000 t/a of superphosphate and 100,000 t/a of ammonium sulphate. South Korea’s Daewoo Engineering & Construction Co. has been awarded the EPC contract for the plant.

Karatau expansion onstream next year

EuroChem says that it expects the Phase III expansion project at its Karatau phosphate development in Kazakhstan to be onstream by 2026. In its Annual Report, EuroChem says that it signed an agreement with the China National Chemical Engineering Co. in May 2024 for the engineering, procurement, construction and commissioning of the chemical complex, and construction is now underway. The company says that it has also had state permits for the construction of additional sulphuric acid production, where the installation of large-capacity equipment is already underway and the first product is expected in 2026. The fertilizer plant is expected to have a capacity of around 1 million t/a, with a construction cost of $1.1 billion for the project. Phosphate reserves at Karatau are put at 41 million tonnes.