Manufacturing method of boiler spent smoke desulfurizer using salt mud

Abstract

A process for preparing the desulfurizing agent of boiler fume from salty mud which contains calcium oxide, silicon oxide, magnesium oxide, sodium chloride and water includes such steps as adding calcium line to said salty mud, stirring, drying, proportionally mixing with hexamethylene tetraamine and sodium tetraborate, stirring and pulverizing. It can be mixed with coal to reduce sulfur by 55-66%.

Description

technical field [0001] The invention relates to a desulfurizer, in particular to a boiler flue gas desulfurizer made from waste residue and salt mud in the chlor-alkali industry, and belongs to the technical field of chemical industry. Background technique [0002] Salt mud in the chlor-alkali industry is the slurry discharge produced during the brine refining process of caustic soda and soda ash. The clarified brine obtained after brine refining and separation is refined brine, and the precipitated discharge is called salt mud. The produced salt mud mainly contains calcium oxide, silicon oxide, magnesium oxide and sodium chloride. The discharge of salt mud will cause serious pollution to the environment. The comprehensive utilization of salt mud has been a long-term concern of chlor-alkali production enterprises. Some use salt mud to make plastic rubber packing, and some use salt mud to make magnesium oxide as refractory materials. However, there is no report on the use of...

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Problems solved by technology

The discharge of salt mud will cause serious pollution to the environment. The comprehensive utilization of salt mud has been a long-term concern of chlor-alkali production enterprises. Some use salt mud to make plastic rubber packing, and some use salt mud to make magnesium oxide as refractory materials. Yes, but there is no report on using salt mud to make boiler flue gas desulfurizer