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Preparation method and equipment of environment-friendly rubber reinforcing agent

A kind of rubber reinforcing agent and environmental protection technology, applied in the field of rubber additives, can solve the problems of complex preparation process, low yield of white carbon black, increased sludge treatment cost, etc., and achieve the effect of simple and easy process and low energy consumption

Active Publication Date: 2019-10-15
北京清怡环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of this invention is complicated, and incineration is still used in the process of sludge treatment, which will produce SO 2 and other harmful gases, these waste gases need to be filtered during recycling, which increases the cost of sludge treatment, and the treatment steps for solids are cumbersome, and the yield of white carbon black obtained is low

Method used

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  • Preparation method and equipment of environment-friendly rubber reinforcing agent
  • Preparation method and equipment of environment-friendly rubber reinforcing agent
  • Preparation method and equipment of environment-friendly rubber reinforcing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A preparation method of an environment-friendly rubber reinforcing agent, comprising the following steps:

[0045] (1) Inactivate the untreated primary sludge in a high-temperature pressure cooker at 120°C for 10 minutes, then dry it at 55°C to constant weight, and dry the dried sludge in a nitrogen atmosphere with a flow rate of 500mL / min , heat up to 550°C at a rate of 10°C / min, and then keep it warm for pyrolysis. The hold time is 90min, and a black carbonaceous solid is obtained;

[0046] (2) The black carbonaceous solid is subjected to wet TEMA grinding in a vibrating disc grinder. The solid-to-liquid ratio of wet TEMA grinding is 1:0.8, and the grinding time is 1 min. After the grinding is completed, put the ground product into an oven Dry at 105°C to constant weight to obtain the environment-friendly rubber reinforcing agent.

Embodiment 2

[0048] A preparation method of an environment-friendly rubber reinforcing agent, comprising the following steps:

[0049] (1) Inactivate the untreated secondary sludge in a high-temperature pressure cooker at a temperature of 125°C for 15 minutes, and then dry it at 60°C to constant weight. Under the atmosphere, the temperature was raised to 600°C at a rate of 10°C / min, and then kept for pyrolysis. The holding time was 90 minutes, and a black carbonaceous solid was obtained;

[0050] (2) The black carbonaceous solid is subjected to wet TEMA grinding in a vibrating disc grinder, the solid-to-liquid ratio of wet TEMA grinding is 1:1, and the grinding time is 1.5min. After the grinding is completed, the grinding product is placed in Dry in an oven at 105°C to constant weight to obtain the environment-friendly rubber reinforcing agent.

Embodiment 3

[0052] A preparation method of an environment-friendly rubber reinforcing agent, comprising the following steps:

[0053] (1) Inactivate the untreated primary sludge in a high-temperature pressure cooker at a temperature of 123°C for 12 minutes, then dry it to a constant weight at 62°C, and dry the dried sludge in a flow rate of 570mL / min Under a nitrogen atmosphere, the temperature was raised to 620°C at a rate of 11°C / min, and then kept for pyrolysis. The holding time was 110 minutes, and a black carbonaceous solid was obtained;

[0054] (2) The black carbonaceous solid is subjected to wet TEMA grinding in a vibrating disc grinder. The solid-to-liquid ratio of wet TEMA grinding is 1:0.9, and the grinding time is 2 minutes. After the grinding is completed, put the ground product into an oven Dry at 105°C to constant weight to obtain the environment-friendly rubber reinforcing agent.

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Abstract

The invention provides a preparation method and equipment of an environment-friendly rubber reinforcing agent. The method includes: (1) in a nitrogen atmosphere, heating dried sludge to 550-650DEG C at a heating rate of 10-12DEG C / min, then performing heat preservation for pyrolysis to obtain a black carbon solid; and then conducting wet TEMA grinding to obtain the environment-friendly rubber reinforcing agent. The equipment includes a quartz tube, a rotary furnace, an inert gas tank and an oil collector. The quartz tube is located inside the rotary furnace to accommodate sludge, one end of the quartz tube is communicated with a nitrogen tank, and the other end of the quartz tube is communicated with the oil collector. The environment-friendly rubber reinforcing agent is obtained from biodegradable waste, the demand for non-renewable resources in the traditional carbon black production process is reduced, also the waste is converted into a solid carbon material to fix carbon element, and the emission of CO2 or methane in the production process is reduced, the preparation process is simple and does not produce secondary pollution, and the prepared environment-friendly rubber reinforcing agent has excellent performance, and can replace the common N772 carbon black to serve as a rubber reinforcing agent.

Description

technical field [0001] The invention relates to the technical field of rubber additives, in particular to a preparation method and equipment of an environment-friendly rubber reinforcing agent. Background technique [0002] In the field of rubber material manufacturing, it is often necessary to add rubber reinforcing agents to improve the wear resistance, tear strength, tensile strength, modulus, swelling resistance and other properties of vulcanized rubber products. Carbon black is an amorphous carbon due to It has high surface activity and can produce chemical adsorption with rubber very well. This chemical adsorption has the characteristics that the molecular chain is relatively easy to move on the surface of carbon black, but it is not easy to separate from carbon black, and it is resistant to tearing and does not It will damage the elasticity of rubber too much (that is, the movement of molecular chains), so it is widely used in the field of rubber material manufacturin...

Claims

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Application Information

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IPC IPC(8): C02F11/10C02F11/121C02F11/13C02F11/00C10B53/00C10B57/00C08K3/04C08L21/00
CPCC02F11/10C02F11/12C02F11/18C02F11/004C10B53/00C10B57/00C08K3/04C08L21/00
Inventor 范怡然
Owner 北京清怡环保科技有限公司
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