Chromium anhydride by-product sodium bisulfate can be recycled

Chongqing freeman chemical co., LTD declare chromic anhydride in the preparation of sodium bisulfate effluent treatment methods for the invention of the state intellectual property office granted patent certificate.

The patent technology of chromic anhydride effective optimization, the by-products of chromic anhydride chromium recycles all sodium bisulfate, can save a large amount of sulfuric acid and recovery of chromium made chromium powder. The comprehensive utilization of by-product of chromic anhydride, which can effectively solve the environmental problems in the process of chromic anhydride production, no longer produces contain chromium slag diatomite, environmental benefit, economic benefit is remarkable.