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A kind of equipment and process for fully automatic continuous production of antioxidant rd

An anti-aging agent, fully automatic technology, applied in the direction of organic chemistry, etc., can solve the problems of unstable product quality, low equipment utilization, low production efficiency, etc., to achieve the effect of improving equipment utilization, reducing post personnel, and improving stability

Active Publication Date: 2020-11-17
SHANDONG SUNSINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a fully automatic continuous production anti-aging agent to solve various defects such as intermittent production in the current domestic production process of anti-aging agent RD, cumbersome operation, poor safety, low equipment utilization rate, low production efficiency, unstable product quality, etc. Agent RD equipment and process

Method used

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  • A kind of equipment and process for fully automatic continuous production of antioxidant rd

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] like figure 1 As shown, a fully automatic and continuous production of anti-aging agent RD equipment includes a salt forming tank 5, a polycondensation tank 6, a buffer tank 9, a neutralization tank 10 and a stratifier 13. Salt forming tank 5, polycondensation tank 6, buffer tank 9, neutralization tank 10 and stratifier 13 are connected in series through pipelines.

[0048] There is a steam coil 16 in the salt forming kettle 5, and the temperature is controlled in chain. The salt-forming kettle 5 also has a stirring device, and there are two layers of paddles up and down, the upper paddle is a downward pressure type, and the lower paddle is an upturned type to prevent the formation of a vortex.

[0049] The salt forming kettle 5 is connected to the hydrochloric acid pump 2 and the aniline pump 1 through two pipelines respectively. The inlet of the aniline pump 1 is connected to the aniline or recovery aniline storage tank, the outlet of the aniline pump 1 is connected...

Embodiment 2

[0067] Adopt the method for the full-automatic continuous production of anti-aging agent RD of the equipment of embodiment 1, comprise steps:

[0068] 1) Pump aniline or recovered aniline and hydrochloric acid into the salt-forming kettle 5, and the feeding amount is controlled by the aniline feed amount regulating valve group 3 and the hydrochloric acid feeding amount regulating valve group 4; the salt-forming material reaches the overflow of the salt-forming kettle 5 Automatically overflow to polycondensation kettle 6 when opening;

[0069] Among them, the feed rate of aniline was controlled at 9 L / h, and the feed rate of hydrochloric acid (30% by mass) was controlled at 4 L / h; the residence time of the salt-forming material in the salt-forming tank was 2.5 h; the salt-forming temperature was 120°C;

[0070] 2) Acetone or recovered acetone is pumped into the polycondensation kettle 6, and the feed amount is adjusted according to the set material ratio through the acetone fee...

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Abstract

The invention discloses equipment and a process for full-automatic continuous production of an anti-aging agent RD, and belongs to the technical field of anti-aging agent production. The invention discloses the equipment and the process for the full-automatic continuous production of the anti-aging agent RD. According to the process, the anti-aging agent RD is synthesized by taking a material one-step method in an overflow mode by adopting a series kettle type reaction device, and the whole technological process comprises the steps of salt formation, polycondensation, neutralization, water separation and the like, wherein automatic instrument interlocking control is adopted in the whole technological process; and continuous feeding, continuous salt formation, continuous polycondensation, continuous neutralization and continuous water separation operation of the anti-aging agent RD production are realized, and an intermittent kettle type reaction synthesis process commonly used in Chinais replaced. According to the process, continuous production and automatic control are achieved, working personnel can be greatly reduced, the labor intensity of workers is reduced, and meanwhile, the stability of production and product quality is improved to a great extent.

Description

technical field [0001] The invention relates to the technical field of anti-aging agent production, in particular to an equipment and process for fully automatic and continuous production of anti-aging agent RD. Background technique [0002] The chemical name of rubber antioxidant RD is 2,2,4-trimethyl-1,2-dihydroquinoline polymer, which is a ketone-amine antioxidant, which has a strong protective effect on rubber aging caused by heat and oxygen. , is one of the varieties with the largest output and consumption of anti-aging agents in my country. [0003] The preparation of anti-aging agent RD usually uses aniline and acetone as raw materials, and is prepared through the processes of salt formation, polycondensation, neutralization, distillation, and granulation under the action of an acid catalyst. At present, the production methods of anti-aging agent RD at home and abroad mainly include "two-step method" and "one-step method" production process. [0004] The "two-step" p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D215/06
CPCC07D215/06
Inventor 郭焕宇刘传红静海旺黄启富李品
Owner SHANDONG SUNSINE CHEM