A kind of sodium percarbonate anti-caking emulsion and its preparation and use method

A sodium percarbonate, anti-caking technology, applied in chemical instruments and methods, peroxide/peroxyhydrate/peroxyacid/superoxide/ozone, inorganic chemistry, etc., can solve the anti-caking effect It can achieve the effect of preventing crystal bridges, improving the anti-caking effect, and achieving significant effects.

Active Publication Date: 2016-10-05
湖北海力环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the poor problem of anti-caking effect existing in the prior art, provide a kind of sodium percarbonate anti-caking emulsion that can significantly improve anti-caking effect and its preparation, use method

Method used

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Examples

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Comparison scheme
Effect test

preparation example Construction

[0050] A kind of preparation method of described sodium percarbonate anti-caking emulsion, this preparation method comprises the following steps successively:

[0051] Step 1: Add water to the batching kettle according to the required amount and heat it to 70-80°C;

[0052] Step 2: First add polymer film-forming agent, dispersant, emulsifier, and hydrophobic agent according to the required ratio to form the system to be mixed, then heat the system to be mixed to 80-90°C and mix evenly to obtain a mixed solution;

[0053] Step 3: first use a high-pressure homogenizer to homogenize the mixed solution, then cool the homogenized mixed solution to room temperature to obtain an anti-caking emulsion, wherein the homogenization pressure is 20-40MPa , the homogenization temperature is 80-90°C.

[0054] The raw material composition of the anti-caking emulsion also includes a saponifying agent, which is an aqueous solution of sodium hydroxide or aqueous potassium hydroxide with a concen...

Embodiment 1

[0068] A sodium percarbonate anti-caking emulsion, the raw material composition and weight ratio of the anti-caking emulsion are: polymer film-forming agent 7, dispersant 30, emulsifier 10, hydrophobic agent 5, saponifier 3, water 47 , wherein the polymer film-forming agent is a mixture obtained by mixing polyethylene glycol and polyvinyl alcohol at a ratio of 5:2, the molecular weight of polyethylene glycol is 1200, the molecular weight of polyvinyl alcohol is 20000-30000, and the dispersant is The mixture obtained by mixing acrylic acid-propylene sulfonic acid copolymer and acrylic acid-acrylamide sulfonic acid copolymer in 1:1, emulsifier is glycerol monostearate, sucrose fatty acid ester, sodium alkylsulfonate in 2:1: 7 mixing the mixture obtained, the hydrophobic agent is stearic acid, and the saponifying agent is an aqueous solution of sodium hydroxide with a concentration of 30% by weight;

[0069] When in use, follow the steps below:

[0070] Anti-caking emulsion prep...

Embodiment 2

[0077] Step is with embodiment 1, and difference is,

[0078] The raw material composition and weight ratio of the anti-caking agent are: polymer film-forming agent 10, dispersant 20, emulsifier 20, hydrophobic agent 10, saponification agent 3, water 38, wherein the polymer film-forming agent The agent is a mixture obtained by mixing polyethylene glycol and polyvinyl alcohol at a ratio of 1:1, the molecular weight of polyethylene glycol is 600, and the emulsifier is obtained by mixing glycerol monostearate and sodium alkylsulfonate at a ratio of 1:3. The mixture, the saponification agent is a 25% sodium hydroxide aqueous solution with a weight percentage concentration.

[0079] In the anti-caking emulsion preparation process, the homogenization pressure is 20MPa, and the homogenized mixed emulsion is pumped into the batching kettle to cool to room temperature; in the anti-caking emulsion using process, the anti-caking emulsion and sodium percarbonate particles The weight rati...

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PUM

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Abstract

The invention relates to a sodium percarbonate anti-caking emulsion which is prepared from the following raw materials in parts by weight: 2-10 parts of high-polymer film former, 10-30 parts of dispersing agent, 10-30 parts of emulsifier, 5-20 parts of hydrophobing agent and 30-60 parts of water. The high-polymer film former is at least one of polyethyleneglycol and polyvinyl alcohol; the dispersing agent is at least one of acrylic acid-allylsulfonic acid copolymer and acrylic acid-acrylamidosulfonic acid copolymer; the emulsifier is at least one of glycerin monostearate, sucrose fatty acid ester, alkane sulfonate and alkyl sulfate; and the hydrophobing agent is at least one of palmic acid and stearic acid. The preparation method comprises the following steps: heating water, proportionally adding the other raw materials according to needs, evenly mixing and homogenizing to obtain the anti-caking emulsion. The application method comprises the following steps: uniformly applying the anti-caking emulsion on the sodium percarbonate particle surface, and drying together. The sodium percarbonate anti-caking emulsion has obvious anti-caking effect.

Description

technical field [0001] The invention relates to an anti-caking agent for inorganic salts, in particular to a sodium percarbonate anti-caking emulsion and its preparation and use methods. Background technique [0002] Sodium percarbonate, also known as sodium peroxycarbonate, is an addition compound of hydrogen peroxide and sodium carbonate, and is a fine white solid particle with good fluidity. It has the characteristics of odorless, non-toxic and non-polluting. It decomposes active oxygen in water and has strong decontamination and bleaching capabilities. It is currently the most widely used detergent additive. Applications. [0003] All there is the problem of agglomeration in the storage process of sodium percarbonate, because product agglomeration, has caused great inconvenience to the use of sodium percarbonate. Sodium percarbonate agglomeration belongs to the agglomeration of inorganic salts, and the agglomeration mechanism is generally believed to have four main the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B15/10
CPCC01B15/106
Inventor 林祥斌史铁京刘建平潘志国马继伟
Owner 湖北海力环保科技股份有限公司
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