Stearate preparation method

A technology of stearate and stearic acid, applied in the field of preparation of stearate, can solve the problems of large amount of waste water and low efficiency, and achieve the effects of eliminating interference and stable product quality

Inactive Publication Date: 2014-06-25
QINGDAO SHUAIWANG OIL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of metathesis production is low efficiency and large amount of waste water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1, a kind of preparation method of stearate, comprises the following steps:

[0015] (1) The mass ratio of stearic acid, calcium hydroxide, catalyst and deionized water is 76:14:6:4 to take raw materials;

[0016] (2) Add stearic acid, calcium hydroxide, and deionized water into the container, and keep warm for 0.5-1.5 hours;

[0017] (3) Put the raw materials reacted in step (2) into the reaction kettle with the catalyst measured in step (1), stir and heat up, at a temperature of 100-170°C and a pressure of 0.03-0.08MPa, stir and react for 6-7 hours , and then dehydrated, dried, and crushed to obtain the finished product.

Embodiment 2

[0018] Embodiment 2, a kind of preparation method of stearate, comprises the following steps:

[0019] (1) The mass ratio of stearic acid, potassium hydroxide, catalyst, and deionized water is 76:14:6:4 to take raw materials;

[0020] (2) Add stearic acid, potassium hydroxide, and deionized water into the container, and keep warm for 0.5-1.5 hours;

[0021] (3) Put the raw materials reacted in step (2) into the reaction kettle with the catalyst measured in step (1), stir and heat up, at a temperature of 100-170°C and a pressure of 0.03-0.08MPa, stir and react for 6-7 hours , and then dehydrated, dried, and crushed to obtain the finished product.

Embodiment 3

[0022] Embodiment 3, a kind of preparation method of stearate, comprises the following steps:

[0023] (1) Take raw materials according to the mass ratio of stearic acid, carbonate, catalyst and deionized water as 76:14:6:4;

[0024] (2) Add stearic acid, carbonate, and deionized water into the container, and keep warm for 0.5-1.5 hours;

[0025] (3) Put the raw materials reacted in step (2) into the reaction kettle with the catalyst measured in step (1), stir and heat up, at a temperature of 100-170°C and a pressure of 0.03-0.08MPa, stir and react for 6-7 hours , and then dehydrated, dried, and crushed to obtain the finished product.

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PUM

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Abstract

The invention discloses a stearate preparation method. The method comprises the following steps: 1, taking raw materials according to a mass ratio of stearic acid to a metal compound to a catalyst to deionized water of 76:14:6:4; 2, adding stearic acid, the metal compound and deionized water into a container, and carrying out a heat insulation reaction for 0.5-1.5h; and 3, adding a product obtained through the reaction of the raw materials in step 2 and the metered catalyst into a reaction kettle, stirring, heating, reacting under stirring at 100-170DEG C under 0.03-0.08MPa for 6-7h, dehydrating, drying, and crushing to obtain a finished product. The stearate preparation method provided by the invention has the advantages of production cost and energy consumption reduction, pollution control cost reduction, reduction of the influences on the environment, and high purity and good quality of stearate produced in the invention.

Description

technical field [0001] The invention relates to the technical field of fine chemicals, in particular to a preparation method of stearate. Background technique [0002] Stearate is widely used in petrochemical, daily chemical, rubber and plastic, dyestuff, medicine, metallurgy, military industry, paint, paint and other industries, mainly as polyethylene, polypropylene, polyvinyl chloride, chlorinated polyethylene and other polymers Heat stabilizers for material processing and lubricants and dispersants for coatings, paints, and paper industries, while the demand for non-toxic heat stabilizer calcium stearate is increasing. The production of stearate products, such as calcium stearate, magnesium stearate, zinc stearate, etc., is traditionally produced by double decomposition. The biggest disadvantage of double decomposition production is low efficiency and large amount of waste water. Taking calcium stearate as an example, the current market prospect of calcium stearate is g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C53/126C07C51/41
CPCC07C51/412
Inventor 王明夫
Owner QINGDAO SHUAIWANG OIL CHEM
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