Current Status and Prospects of Sulfur-based Acid Production and Phosphogypsum in China
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The Russia-Ukraine conflict and the US-Iran war have directly accelerated the rise in international sulfur prices. Given this trend, what are the prospects for sulfur-based acid production in China? On the other hand, the recycling and treatment of phosphogypsum has become a significant challenge for the phosphate fertilizer industry. Projects aimed at using phosphogypsum to produce acid have already been initiated; what are the prospects for these projects? What to do with the gypsum powder, which is a by-product? I would be very grateful if all the seniors and experts could share their thoughts and insights on industry developments
Given the current international situation, sulfur prices are indeed under significant pressure to fluctuate. Based on personal observations, some domestic sulfur-based sulfuric acid manufacturers have recently begun to adjust their raw material procurement strategies, with some turning to the Middle East in search of alternative supply sources. In terms of using phosphogypsum to produce acid, demonstration projects have already been put into operation in regions such as Hubei and Yunnan. However, the market demand for the by-product gypsum powder remains a challenge. The main applications at present are in the construction materials sector (such as gypsum boards and cement retarders); it is advisable to pay attention to the policies implemented by local housing and construction departments to promote the use of phosphogypsum in construction materials. Specific project investment requires careful evaluation in light of local environmental regulations and downstream channels.