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Clean production method of rubber vulcanizing accelerator TBBS

A clean production and rubber vulcanization technology, applied in the direction of organic chemistry, can solve the problems of non-compliance with environmental protection policies, low yield, high energy consumption, etc., and achieve the effect of easy biochemical treatment, high yield and high quality

Inactive Publication Date: 2010-06-02
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

This method has low yield, high energy consumption, and large consumption, and produces a large amount of industrial wastewater containing high-concentration inorganic salts, which is extremely difficult to treat and does not conform to the national environmental protection policy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Get raw material accelerator M, tert-butylamine and catalyst, add water, be accelerator M by weight ratio: tert-butylamine: catalyst: water=1: 1.5: 0.02: 8, be made into about 4200 kilograms of liquids, after stirring evenly, with 50ml / min The flow rate is to drop hydrogen peroxide with a mass content of 27.5% in the solution, and the oxidation temperature is 30°C. After oxidizing for 120 minutes, take a sample and detect it with ammonium sulfate and starch potassium iodide reagent. When it is detected that the material turns brown, it reaches the end point. Then stop dripping hydrogen peroxide, filter, dry to get the rubber accelerator TBBS product.

Embodiment 2

[0015] The raw material promoter M, tert-butylamine and catalyst are added with water, and the ratio by weight is accelerator M: tert-butylamine: catalyst: water = 1: 1.5: 0.02: 8, made into about 5120 kg of liquid, after stirring evenly, with 70ml / min Flow rate, dripping mass content in the solution is the hydrogen peroxide of 27.5%, the weight ratio of each substance is M: tert-butylamine: water=1: 1.8: 10, and oxidation temperature is 40 ℃, after oxidation 140 minutes, sampling, with ammonium sulfate and Starch potassium iodide reagent is used for detection, when it is detected that the material turns brown, it reaches the end point, then stop adding hydrogen peroxide, filter and dry to obtain the rubber accelerator TBBS product.

Embodiment 3

[0017] The raw material promoter M400, tert-butylamine 840 and catalyst 8, add water 4800, the ratio by weight is accelerator M: tert-butylamine: catalyst: water = 1: 2.1: 0.02: 12, and make about 6050 kg of liquid, after stirring evenly, use 90ml flow rate per minute, dropwise add mass content of 27.5% hydrogen peroxide into the solution, and the oxidation temperature is 45°C. After oxidizing for 160 minutes, take a sample and detect it with ammonium sulfate and starch potassium iodide reagent. When it is detected that the material turns brown, then To the end, then stop dripping hydrogen peroxide, filter, dry to get the rubber accelerator TBBS product.

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PUM

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Abstract

The invention discloses a clean production method of a rubber vulcanizing accelerator TBBS, relating to the clean production method of the rubber vulcanizing accelerator TBBS. The cleaning production method is characterized by comprising the following steps of: a, preparing mixing liquid by 1 wt% of accelerators M, 1.5 to 2.4 wt% of tert-butylamine, 0.01 to 0.02 wt% of catalysts and 8 to 14 wt% of water; b, dropwise adding 27.5 wt% hydrogen peroxide in the solution with the flow rate of 50 to 110 ml / min, wherein the oxidizing temperature is 30 to 50 DEG C, and the oxidizing time is 120 to 180 min; c, sampling, detecting by using ammonium sulfate and starch potassium iodide reagents, and stopping adding the hydrogen peroxide when materials are brown in color through detection; and d, filtering and drying to obtain the rubber vulcanizing accelerator TBBS. The invention has the advantages of simple production process, low raw material consumption, high yield, cleanness, environment protection and energy saving; the yield of the accelerator TBBS is higher than 99%, and the product quality is higher than the national primary standard; waste water generated in the technology contains no salt and is easy for biochemical treatment; and the invention reduces environmental pollution and equipment corrosion.

Description

Technical field: [0001] The invention relates to a production method of chemical products, in particular to a clean production method of a rubber vulcanization accelerator TBBS. Background technique: [0002] Rubber vulcanization accelerator TBBS (chemical name N-tert-butyl-2-benzothiazole sulfenamide, molecular formula: C 11 h 14 N 2 S 2 ) is an important accelerator, mainly used in the manufacture of industrial rubber products such as tires, rubber hoses, rubber shoes, and cables. The existing production technology is: Accelerator M (chemical name: 2-thiol benzothiazole, molecular formula: C 7 h 5 NS 2 ) react with excess tert-butylamine under the action of an oxidizing agent, and the reacted material is washed with water, dehydrated and dried to obtain the finished product. This method has low yield, high energy consumption, and high consumption, and produces a large amount of industrial wastewater containing high-concentration inorganic salts, which is extremely d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D277/80
Inventor 苗进之王奎亮刘志勇严敬磊
Owner 河南省开仑化工有限责任公司
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