Institute of Research of Iron and Steel, Jiangsu Province/sha-steel, Co. Ltd.

Hangsu Shagang Group Co., Ltd.

Zhangjiagang Hongchang Steel Plate Co., Ltd.

Rui Mao

Fei Wang

Hang Su

Shendong Mao

A resource recovery method and a resource recovery system of desulfurized ash. The resource recovery method includes washing desulfurized ash with water, and performing solid-liquid separation to obtain solid residues rich in calcium sulfite and calcium sulfate and a solution rich in calcium hydroxide; preparing the solution into desulfurization slurry; and roasting the solid residues under the action of a reducing agent to obtain flue gas rich in sulfur dioxide and residues rich in calcium oxide. Therefore, the recovery of sulfur and calcium in the desulfurized ash is realized, and no solid waste, liquid waste, gas waste, etc. are produced in the process.

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Suzhou, China

Rui Mao