Preparation of single potassium persulfate

A technology of potassium monopersulfate and sulfuric acid, applied in chemical instruments and methods, peroxyhydrate/peroxyacid, sodium/potassium compounds, etc., can solve the problems of high equipment requirements, industrial production limitations, and large equipment investment. , to achieve the effect of simple operation and convenient industrial production

Inactive Publication Date: 2006-05-31
JIAYUAN IND SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] At present, the method for preparing potassium monopersulfate with hydrogen peroxide as an oxidant generally adopts a pipeline reactor, which requires a large investment in equipment and requires mo

Method used

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Examples

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Embodiment 1

[0024] (1) 100 kilograms of weight concentration is 50% hydrogen peroxide and 140 kilograms of concentration are 65% oleum to carry out oxidation reaction, and reaction temperature is 20 ℃, and the reaction time is 90 minutes;

[0025] (2) 170 kilograms of concentration is that the potassium hydroxide solution of 48% is reacted with the product that step (1) obtains, obtains target product, the aqueous solution of potassium monopersulfate, and reaction temperature is 30 ℃, and the reaction time is 90 minutes;

[0026] (3) The aqueous solution of potassium monopersulfate is cooled to -4° C. to crystallize at a cooling rate of 1 to 5° C. / hour, then filtered and dried to obtain 180 kilograms of the product.

[0027] Product purity: active oxygen ≥ 4.6%.

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Abstract

Production of monoper-potassium bisulfate includes oxidation reacting for hydrogen peroxide sulfuric acid to obtain reaction product, reacting the product with potassium hydrate to obtain monoper-potassium bisulfate solution, cooling, crystallizing, collecting solid monoper-potassium bisulfate, drying and obtaining end product. It is simple and convenient for industrial production.

Description

technical field [0001] The invention relates to a preparation method of potassium monopersulfate, in particular to a method for preparing potassium monopersulfate by using hydrogen peroxide as an oxidant. Background technique [0002] Potassium monopersulfate is an inorganic chemical raw material, which can be used as a bleaching agent and an oxidizing agent, and is widely used in papermaking, leather, medicine and daily chemical industries. Its chemical formula is KHSO 5 . [0003] At present, the method for preparing potassium monopersulfate with hydrogen peroxide as an oxidant generally adopts a pipeline reactor, which requires a large investment in equipment and requires more power equipment. Because raw materials such as hydrogen peroxide and sulfuric acid are corrosive, the equipment requirements are high, making industrialization Production was limited and improvements had to be made. Contents of the invention [0004] The technical problem to be solved in the pr...

Claims

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Application Information

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IPC IPC(8): C01B15/08C01D13/00
Inventor 潘云川林伟林福明
Owner JIAYUAN IND SHANGHAI
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