The progress in phasing out outdated technologies in the sulfuric acid industry is concerning

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This post was last edited by melao on 2011-12-10 22:43. “There are an enormous number of new sulfuric acid production projects this year; the association recommends that no new such projects be launched for 5 years, but no companies are listening and continue to build them. ”Qi Yan stated that the association proposed in the 12th Five-Year Development Plan for the sulfuric acid industry that, in principle, no new sulfur-based or pyrite-based sulfuric acid production facilities should be built within 5 years. At the same time, sulfur-based and pyrite-based sulfuric acid production plants with a capacity of less than 100,000 tons will be phased out. 　　“But the reality is that the small ones cannot be phased out, and the large ones are still being launched. And each has its own reasons. ”Qi Yan said that when it comes to producing acid from pyrite, China lacks iron resources; some small pyrite-related enterprises are doing well currently, and local governments rely on them for tax revenue – so why would they want to phase them out? Another example is the production of sulfuric acid from sulfur. Many enterprises along the coast are currently building large-scale sulfur-based sulfuric acid production plants, mainly to use sulfuric acid vapor for power generation. It’s not possible to prevent its use either; coal is in short supply and its price is very high, so it’s better to buy sulfur for power generation. In addition, regions such as Guizhou and Hubei are building large-scale phosphate compound fertilizer plants, along with corresponding large-scale sulfuric acid plants.