Reaction apparatus for resorcinol neutralization reaction section and reaction technology thereof

A reaction device and technology of resorcinol, which are applied in the field of resorcinol neutralization reaction device, achieve the effects of high labor intensity, low cost, and avoiding the generation of solid wastes

Active Publication Date: 2012-01-25
JIANGSU ZHONGDAN CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention provides a reaction device in the process of resorcinol neutralization reaction, which can solve the problem of large and complicated reaction device equipment in the neutralization reaction
[0011] The present invention can also solve the problems of discontinuity in the neutralization reaction process, low efficiency, high energy consumption, high raw material consumption, and many solid wastes

Method used

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  • Reaction apparatus for resorcinol neutralization reaction section and reaction technology thereof
  • Reaction apparatus for resorcinol neutralization reaction section and reaction technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] like figure 1 Shown, a kind of reaction device of resorcinol neutralization reaction section, this device comprises static mixer 8, is provided with distributing head 7 at the feeding end of static mixer 8, and described distributing head 7 has two feeding The material chamber is separated by a partition in the middle, and each cavity is connected with a feed port, one feed port is connected with the sulfonated material storage tank 1, and the other feed port is connected with the liquid alkali storage tank 4, statically mixed The other end of the device 8 is connected to the material collection tank 9, a mixing unit is arranged in the static mixer 8, and an insulating jacket is arranged outside, and the static mixer 8 is sealed.

Embodiment 2

[0058] This embodiment is the same as Embodiment 1, except that the mixing unit of the static mixer 8 is SK type, SV, SX or SL. The static mixer 8 is composed of three sections connected in series. One of the feed ports described above is connected with the damper 3, and the damper 3 is connected with the sulfonated material storage tank 1, and the other feed port is connected with the damper 6, and the damper 6 is connected with the liquid alkali storage tank 4 again; static mixing The other end of the device 8 is connected to the material collection tank 9, and the collection tank 9 is connected to the dust collector 10 again.

Embodiment 3

[0060] like figure 1 Shown, the reaction technology of the reaction device of resorcinol neutralization reaction workshop section:

[0061] (1) Delivery: the isophthalic acid and alkali are transported to the static mixer 8 through the two feed chambers of the distribution head 7, the ratio of the isophthalic acid and the alkali is 1:2.2, and the alkali 50% NaOH;

[0062] (2) Reaction: isophthalic acid and NaOH enter the airtight static mixer 8, vacuumize the jacket of the static mixer 8, and stir and react through the mixing unit in the static mixer 8;

[0063] (3) Separation: After the reaction is completed, the mixed phase of the reaction product enters the material collection tank 9 .

[0064] Use a metering pump to feed the high-temperature sulfonated material and the prepared liquid alkali in a molar ratio of 1:2.2 to the static mixer at a speed of 200L / h and feed them simultaneously. The neutralization heat of the reaction raises the temperature of the static mixer t...

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Abstract

The invention which discloses a reaction apparatus for the resorcinol neutralization reaction and a reaction technology thereof relates to a continuous application of a mixer in a resorcinol neutralization reaction section, and concretely relates to a continuous application of a static mixer in the resorcinol neutralization reaction section, so problems of high energy consumption, a large amount of solid wastes and the like existing in present production processes of m-benzene sodium disulfonate can be solved. The reaction technology comprises the following steps: conveying m-benzene disulfonic acid and a liquid alkali to the static mixer through a metering pump; carrying out the neutralization reaction; and carrying out heating and water evaporation on a generated material with heat generated in neutralization to directly form m-benzene sodium disulfonate which has a powder form at a high temperature and is used for an m-benzene sodium disulfonate alkali fusion section. According to the invention, the acid-base neutralization and drying are synchronously carried out, the drying speed is fast, and drying is complete, so a purpose of the continuous production is realized, and simultaneously the energy utilization rate is improved and the generation of the solid wastes is reduced.

Description

[0001] Technical field: [0002] The invention relates to a resorcinol neutralization reaction device, and also relates to a reaction process of the resorcinol neutralization reaction. [0003] Background technique: [0004] Resorcinol is an important fine chemical organic raw material, widely used in rubber, plastics, medicine, pesticides, dyes and electronic chemical products. Among them, it is mainly used in tire cord impregnation, adhesive resin for synthetic rubber, high-performance adhesive for wood plywood, organic intermediate aminophenol and benzophenone ultraviolet absorber. At present, the most traditional production process of resorcinol in the world is the sulfonation alkali fusion method, which is used by most enterprises in China, the United States, India, Russia and other countries. The production process of resorcinol: benzene and Fuming sulfuric acid is sulfonated, neutralized, alkali-fused, acidified and distilled under the action of a catalyst to obtain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C309/29C07C303/32C07C39/08C07C37/04B01J19/24B01J4/00B01F5/06
Inventor 李留德施波丁龙军卞小豹王春明
Owner JIANGSU ZHONGDAN CHEM TECH
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