Approval Announcement for the Renovation Project of Duofu’s 100,000-ton-per-year Fluoride Salt Production Line
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Public Notice on the Approval Process for Duofuduo’s Project to Increase Production of Fluoride Salts by 100,000 Tons per Year 2025-12-03 13:44:48 On November 28th, the Jiaozuo Environmental Protection Bureau intended to issue a public notice regarding its decision on the environmental impact assessment for Duofuduo New Materials Co., Ltd.’s project to upgrade its production capacity for fluoride salt materials to 100,000 tons per year. The details of the project are as follows: Project name: Project to Upgrade Production Capacity for Fluoride Salt Materials to 100,000 Tons per Year； Construction unit: Dofuduo New Materials Co., Ltd ； Construction nature: Renovation ； Construction location: South of Xinyuan Road and west of Jing Er Road, in the original factory area of the company, Zhongzhan District, Jiaozuo City ； Construction investment: 295 million yuan ； Construction content and scale: The project mainly involves technical upgrades to the existing facilities for producing fluoride salts such as aluminum fluoride and cryolite, in order to achieve an annual production capacity of 92,000 tons of these fluoride salt products. Hydrofluoric acid and sodium fluoride are produced using fluorosilicic acid containing 10%~15% hydrogen fluoride, which is generated during the purification of crude HF in fluorine chemical enterprises, as raw material ； Production of anhydrous aluminum fluoride using aluminum hydroxide and industrial hydrogen fluoride as raw materials ； High-molecular-weight cryolite is produced using fluorosilicic acid, industrial salts, ammonia water, sodium hydroxide, and aluminum hydroxide as raw materials ； High-purity cryolite is produced using silane as a by-product in its synthesis (or cryolite obtained as a by-product of lithium extraction), waste hydrofluoric acid generated from the wet etching of solar panels, and sodium hydroxide as raw materials ； High-purity sodium fluoride is produced using high-purity hydrofluoric acid and sodium hydroxide as raw materials.
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