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Modified zinc stearate production technology

A production process, zinc stearate technology, applied in the technical field of dry production of zinc stearate, can solve the problems of affecting the activity of zinc stearate, increasing the difficulty of processing, large energy consumption, etc., and achieve obvious economic benefits and social benefits, fast crushing, and low energy consumption

Inactive Publication Date: 2016-02-24
JIANGMEN SHENGPENG CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shortcoming of existing dry production process is: whole synthesis reaction needs to carry out long time reaction at higher temperature, energy consumption is bigger, and zinc stearate reacts for a long time in molten state, can cause its agglomeration in a large amount, Affect the activity of zinc stearate, but also increase the difficulty of subsequent processing

Method used

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  • Modified zinc stearate production technology

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Effect test

Embodiment 1

[0019] In terms of mass percentage, add 80% stearic acid to the pressure-resistant reactor, stir and heat to the melting temperature, set the stirring speed to 1250 rpm, and add 15% at 120°C with a purity of 99.7% by weight and average particle size. Zinc oxide with a diameter of 20-100 nanometers, after reacting for 10 minutes, add 5% pure water, seal the reaction kettle, evacuate to a vacuum of 50 Pa, continue the reaction for 20 minutes, cool down and enter the pulverizer for pulverization. The resulting product is It is zinc stearate.

Embodiment 2

[0021] According to the mass percentage, 87% stearic acid was added to the pressure-resistant reactor, stirred and heated to the melting temperature, the stirring speed was set to 1250rpm, and 10% was added at 130°C with a purity of 99.7wt%, particle size Zinc oxide at 20-100 nanometers,

[0022] After reacting for 15 minutes, add 3% pure water, seal the reactor, evacuate to a vacuum of 500 Pa, continue the reaction for 30 minutes, cool down and enter the pulverizer for pulverization, and the resulting product is zinc stearate.

Embodiment 3

[0024] In terms of mass percentage, add 85% of stearic acid to the pressure-resistant reactor, stir and heat to the melting temperature, set the stirring speed to 1250rpm, add 16% of the purity to 99.7% by weight, particle size at 150℃ Zinc oxide at 20-100 nanometers,

[0025] After reacting for 10 minutes, add 1% pure water, seal the reaction kettle, evacuate to a vacuum of 150 Pa, continue the reaction for 20 minutes, cool down and enter the pulverizer for pulverization. The resulting product is zinc stearate.

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Abstract

The invention provides a modified zinc stearate production technology comprising the following steps: (a) carrying out heating melting on stearic acid in a reaction kettle, adding zinc oxide at the temperature of 120 DEG C-150 DEG C while high-speed stirring, carrying out a reaction for 10-15 minutes, and then adding pure water; and (b) vacuumizing: sealing the reaction kettle, vacuumizing to the vacuum degree of 50-500 Pa, carrying out a reaction for 20-30 minutes, after cooling and temperature dropping, allowing the product to enter a pulverizer, and pulverizing. Compared with a traditional zinc stearate dry-process production technology, the prepared zinc stearate has the advantages of loose particles, easy pulverizing, fine product granularity, high reactivity and less energy consumption, and has quite obvious economic benefits and social benefits.

Description

Technical field [0001] The invention relates to a production process of zinc stearate, in particular to an improved dry process production process of zinc stearate. Background technique [0002] Zinc stearate is widely used in the fields of heat stabilizer, lubricant, grease, accelerator and thickener due to its excellent stability. For example, it can be used as a PVC resin heat stabilizer for general industrial transparent products; if it is used in combination with calcium soap, it can be used for non-toxic products, etc.; if it has good lubricity, it can improve the appearance of scaling and can be used as a lubricant and mold release Agents, flattening agents for paints and additives for paints. [0003] The production process for zinc stearate is generally divided into two types, wet method and dry method. The early production process of zinc stearate was mostly wet production. The process is roughly as follows: firstly, stearic acid and caustic soda are reacted in a large ...

Claims

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Application Information

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IPC IPC(8): C07C51/41C07C53/126
CPCC07C51/412C07C53/126
Inventor 钟振迎魏文培
Owner JIANGMEN SHENGPENG CHEM IND CO LTD
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