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Novel process for producing rubber vulcanization accelerator DM

A technology for rubber vulcanization and accelerator, applied in the direction of organic chemistry, etc., can solve the problems of industrial production restriction of vulcanization accelerator, and achieve the effect of being conducive to healthy development and the method is simple and easy to operate.

Inactive Publication Date: 2011-04-27
河南省开仑化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because the preparation of vulcanization accelerator in the past can produce a large amount of tail gas and harmful substance, so the industrialized production of vulcanization accelerator is severely restricted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: Put 400 kilograms of accelerator M into the reactor, fully beat for 1 hour, add 5 kilograms of catalyst copper acetate while beating, and then add 10% hydrogen peroxide dropwise at a rate of 80 L per hour, near the end of the reaction Determination with 1% cobalt oleate, the determination method is: take a small amount of material and put it into a test tube with 50 ml of acetone, then drop in cobalt oleate, and after confirming that the solution has not turned green, discharge the material, spin dry, and dry. That is, the high-purity rubber vulcanization accelerator DM is obtained.

Embodiment 2

[0014] Embodiment 2: Put 500 kilograms of accelerator M into the reactor, fully beat for 1 hour, add 6 kilograms of catalyst copper acetate while beating, then add 10% hydrogen peroxide dropwise at a rate of 100 L per hour, near the end of the reaction Determination with 1% cobalt oleate, the determination method is: take a small amount of material and put it into a test tube with 50 ml of acetone, then drop in cobalt oleate, and after confirming that the solution has not turned green, discharge the material, spin dry, and dry. That is, the high-purity rubber vulcanization accelerator DM is obtained.

Embodiment 3

[0015] Embodiment 3: Put 550 kilograms of accelerator M into the reaction kettle, fully beat for 1 hour, add 8 kilograms of catalyst copper acetate while beating, then add 10% hydrogen peroxide dropwise at a rate of 120 L per hour, near the end of the reaction Determination with 1% cobalt oleate, the determination method is: take a small amount of material and put it into a test tube with 50 ml of acetone, then drop in cobalt oleate, and after confirming that the solution has not turned green, discharge the material, spin dry, and dry. That is, the high-purity rubber vulcanization accelerator DM is obtained.

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Abstract

The invention discloses a novel process for producing a rubber vulcanization accelerator DM and relates to a chemical assistant production method. The novel process is characterized by comprising the following steps of: adding 400 to 600 kilograms of accelerator M into a reactor; fully beating for 0.8 to 1.2 hours; adding 5 to 10 kilograms of copper acetate serving as a catalyst with beating; dropping 10 to 20 percent of hydrogen peroxide at a speed of 80 to 150L / hour; and discharging, spin drying and oven drying at the end of the reaction. Moreover, the end of the reaction is assayed by 1 percent of cobalt oleate by the steps of: putting a small amount of materials into a test tube with 50 milliliters of acetone and dropping the cobalt oleate, wherein if the solution does not go green, the reaction ends. The novel process has the following remarkable advantages that: the DM is directly oxidized by the hydrogen peroxide; the method is simple and easy to operate; the whole production process is clean, environmentally-friendly and suitable for industrial mass production; and the utilization of the process is favorable for the healthy development of rubber assistant industry.

Description

technical field [0001] The invention relates to the technical field of chemical industry, and further relates to a production method of chemical auxiliary agents, in particular to a production method of rubber vulcanization accelerator DM. Background technique [0002] In the production process of chemical rubber additives - vulcanization accelerator DM, with the development of the rubber industry, the research and production of vulcanization accelerators have attracted more and more attention. However, because the preparation of vulcanization accelerators in the past will produce a large amount of tail gas and harmful substances, the industrial production of vulcanization accelerators is severely restricted. Therefore, a clean production process of rubber vulcanization accelerator DM is in urgent need of research and development. Contents of the invention [0003] The purpose of the present invention is to provide a new production process of rubber vulcanization accelera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D277/78
Inventor 苗进之刘志勇王奎亮张基础薛玉聪毛国先严敬磊
Owner 河南省开仑化工有限责任公司
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