KR960041511A - Granular bleach excellent in solubility and preparation method thereof - Google Patents

Abstract

The present invention relates to a method for preparing a granular bleach excellent in solubility, and in preparing sodium percarbonate by reacting sodium carbonate and hydrogen peroxide, sodium percarbonate prepared by adding an ester compound of a higher fatty acid with a known stabilizer or using a known stabilizer. The present invention relates to a method for preparing sodium percarbonate having excellent solubility at room temperature by fractionating an ester mixture of a higher fatty acid.

Description

Granular bleach excellent in solubility and preparation method thereof

As this is a public information case, the full text was not included.

Claims (4)

In the granular bleach, at least one or more of sodium percarbonate reacted with sodium carbonate and hydrogen peroxide, a stabilizer which is a sodium silicate and magnesium compound, and an additive which is a compound of the following (A), (B) and (C) groups: Granular bleach, characterized in that (a) esters of sugars and higher fatty acids (where sugars include all monosaccharides, disaccharides, polysaccharides, and higher fatty acids are saturated or unsaturated fatty acids having 10 to 18 carbon atoms), (b) Ester compounds of polyhydric alcohols and higher fatty acids (wherein polyhydric alcohols include both dihydric and divalent alcohols, and higher fatty acids are saturated or unsaturated fatty acids having 10 to 18 carbon atoms), and (c) poly Compounds to which oxyethylene is added (wherein polyhydric alcohols include all dihydric to divalent alcohols, and higher fatty acids are saturated or unsaturated fatty acids having 10 to 18 carbon atoms and Number of ethylene added moles is 3 to 60 moles) In the granular bleach production method, in the preparation of sodium percarbonate reacted with sodium carbonate and hydrogen peroxide, stabilizers such as sodium silicate and magnesium compounds and additives of the following compounds (A), (B) and (C) Process for producing granular bleach, characterized by mixing at least one or more species (a) Ester compounds of sugars and higher fatty acids (where sugars include all monosaccharides, disaccharides, and polysaccharides; higher fatty acids are saturated with 10 to 18 carbon atoms) Or unsaturated fatty acids), (b) ester compounds of polyhydric alcohols and higher fatty acids, where polyhydric alcohols comprise both divalent and divalent alcohols and higher fatty acids being saturated or unsaturated fatty acids having 10 to 18 carbon atoms, Polyoxyethylene is added to the compound of Group (b), where polyhydric alcohol contains all dihydric to divalent alcohols and higher fatty acids have 10 to 18 carbon atoms. Saturated or unsaturated fatty acids and polyoxyethylene added moles are 3 to 60 moles) In the granular bleach production method, sodium carbonate is reacted with hydrogen peroxide to produce sodium percarbonate, and the surface of the sodium percarbonate is sprayed with at least one compound of the following groups (A), (B) and (C): Process for producing granular bleach, (A) Ester compounds of sugars and higher fatty acids, where sugars include all monosaccharides, disaccharides and polysaccharides, and higher fatty acids are saturated or unsaturated fatty acids having 10 to 18 carbon atoms, (b) Ester compounds of polyhydric alcohols and higher fatty acids (wherein polyhydric alcohols include both dihydric and divalent alcohols, and higher fatty acids are saturated or unsaturated fatty acids having 10 to 18 carbon atoms), and (c) poly Compounds to which oxyethylene is added (wherein polyhydric alcohols include all dihydric to divalent alcohols, and higher fatty acids are saturated or unsaturated fatty acids having 10 to 18 carbon atoms) Polyoxyethylene addition mole number is 3 to 60 moles). The granular bleach production method according to claim 2 or 3, wherein the component of the compound (A), (B) or (C) is added at 0.01 to 5 wt% based on sodium carbonate. ※ Note: The disclosure is based on the initial application.