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A method of photocatalytic organic synthesis accelerator

A technology of organic synthesis and photocatalyst, applied in the direction of organic chemistry, etc., can solve the problems of general performance, high energy consumption, rubber accelerators and processes have not been substantially improved, etc., to achieve simple operation, mild preparation conditions, and achieve environmental protection. The effect of energy saving industry

Active Publication Date: 2021-12-17
浙江鸿浩科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the rubber accelerator and the process of the invention have not been substantially improved, and the energy consumption is high and the performance is average.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for photocatalytic organic synthesis accelerator, comprising the following steps:

[0024] (1) 60Kg of MBT was added to a beaker containing 100Kg of 20wt% NaOH solution, heated to 70°C to obtain a M-Na salt solution with a pH of 10;

[0025] (2) Add 300kg of 10wt% M-Na salt solution, 0.5kg of 35wt% hydrogen peroxide and 0.1kg of nano-titanium dioxide into the photocatalytic reactor, and react at 25°C under the irradiation of ultraviolet xenon lamp and stirring The time is 6h;

[0026] (3) Take a sample and measure its pH value. When the pH value is 4.0, stop the reaction, filter with suction, wash with water, filter, and dry in vacuum at 40°C for 5 hours to obtain the rubber accelerator DM product.

Embodiment 2

[0028] A method for photocatalytic organic synthesis accelerator, comprising the following steps:

[0029] (1) 80Kg of MBT was added to a beaker containing 120Kg of 20wt% NaOH solution, heated to 75°C to obtain a M-Na salt solution with a pH of 12;

[0030] (2) Mix 500Kg of 50wt% M-Na salt solution, 5Kg of 5wt% hydrogen peroxide and 0.1~10Kg of nano-CuBO 2 Add it into the photocatalytic reactor, under the irradiation of visible light xenon lamp, under the condition of stirring, at 60°C, the reaction time is 2h;

[0031] (3) Take a sample and measure its pH value. When the pH value is 8.0, stop the reaction, filter with suction, wash with water, filter, and vacuum dry at 60°C for 3 hours to obtain the rubber accelerator DM product.

Embodiment 3

[0033] A method for photocatalytic organic synthesis accelerator, comprising the following steps:

[0034] (1) Add 70Kg of MBT into a beaker containing 100~120Kg of 20wt% NaOH solution, and heat to 70~75°C to obtain an M-Na salt solution with a pH of 11;

[0035] (2) Mix 500Kg of 40wt% M-Na salt solution, 0.5~5Kg of 20wt% hydrogen peroxide and 5Kg of nano Cu 3 B 2 o 6 Add it into the photocatalytic reactor, under the irradiation of visible light xenon lamp, under the condition of stirring, at 30°C, the reaction time is 4h;

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Abstract

The present invention relates to the technical field of accelerator production, in particular to a method for photocatalytic organic synthesis of accelerators, comprising the following steps: (1) 300-500 parts by weight of 10-50 wt% M-Na salt solution, 0.5-5 parts by weight 5-35 wt% of hydrogen peroxide and 0.1-10 wt% of photocatalyst are added to the photocatalytic reactor, under the irradiation of xenon lamp, and react under stirring conditions; (2) take a sample and measure its pH value, when the pH value is 4.0 ~8.0, stop the reaction, filter with suction, wash with water, filter, and dry to get the rubber accelerator DM product. The invention avoids the use of strong corrosive chemical reagents such as nitric acid and sulfuric acid, has mild preparation conditions, reduces energy consumption, does not generate too much waste water in the whole process, reduces the pressure of water treatment engineering, and is easy to control the process conditions and simple to operate, which is beneficial to realize The environmental protection and energy saving industry advocated by the state.

Description

technical field [0001] The invention relates to the technical field of accelerator production, in particular to a low energy consumption, high-performance photocatalytic organic synthesis accelerator method. Background technique [0002] Accelerator, short for vulcanization accelerator, refers to a substance that can promote vulcanization. It can shorten the vulcanization time of rubber or lower the vulcanization temperature, reduce the amount of vulcanizing agent and improve the physical and mechanical properties of rubber. It can be divided into two categories: inorganic accelerators and organic accelerators. Among the inorganic accelerators, except for a small amount of zinc oxide, magnesium oxide, and lead oxide, the rest are mainly used as auxiliary accelerators, and most of them are organic accelerators. Among them, dibenzothiazole disulfide (DM for short) is widely used in non-food rubber products such as tires, hoses, rubber mats, tarpaulins, hoses, wires, cables, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D277/78
CPCC07D277/78
Inventor 包志泉翁民包充宇
Owner 浙江鸿浩科技有限公司