Method for preparing organic sulfonic acid by utilizing sulfur-containing fuel combustion flue gas

An organic sulfonic acid, combustion flue gas technology, applied in the formation/introduction of sulfonic acid group/dihydroxysulfonyl group, the preparation of sulfonic acid, organic chemistry, etc., can solve the problems of low value, small market capacity, restricted promotion and application, etc. , to achieve the effect of easy industrialization

Inactive Publication Date: 2019-12-24
孔繁昇 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small market capacity and low value of the final products of these technologies, their promotion and application are restricted.

Method used

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  • Method for preparing organic sulfonic acid by utilizing sulfur-containing fuel combustion flue gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of method of utilizing sulfur-containing fuel combustion flue gas of present embodiment to prepare organic sulfonic acid, comprises the following steps:

[0027] The coal-fired flue gas is introduced into the absorption tower, and sodium bisulfite solution is used to absorb sulfur dioxide to generate sodium bisulfite; the sodium bisulfite solution is introduced into the analysis tower to be heated to release sulfur dioxide, and after purification, it is mixed with air in proportion, and then introduced into the conversion tower for vanadium pentoxide Catalytic oxidation to sulfur trioxide; import sulfur trioxide into sulfonation reactor and sulfonation reaction with organic matter to obtain organic sulfonic acid.

Embodiment 2

[0029] Same as Example 1, the difference is that sulfur trioxide is introduced into a sulfonation reactor to undergo a sulfonation reaction with dodecylbenzene to obtain dodecylbenzenesulfonic acid.

Embodiment 3

[0031] With embodiment 1, its difference is: import sulfur trioxide into sulfonation reactor and take place sulfonation reaction with naphthalene to obtain naphthalenesulfonic acid.

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Abstract

The invention relates to a preparation method of organic sulfonic acid, in particular to a method for preparing organic sulfonic acid by utilizing sulfur-containing fuel combustion flue gas. Accordingto the method for preparing the organic sulfonic acid from the sulfur-containing fuel combustion flue gas, sulfur dioxide in the sulfur-containing fuel flue gas serves as a main raw material, the organic sulfonic acid is prepared through the processes of recovery, conversion and sulfonation. The method has the advantages of being economical, environmentally friendly and easy to industrialize.

Description

technical field [0001] The invention relates to a method for preparing organic sulfonic acid, in particular to a method for preparing organic sulfonic acid by using sulfur-containing fuel combustion flue gas. Background technique [0002] Organic sulfonic acid has special physical and chemical properties, and is widely used as surfactant, organic synthesis raw material, light industry, daily chemical industry, for the manufacture of detergent, functional resin, dye, medicine, food additive, pesticide, oil field additive, etc. There are many varieties and the market capacity is large. At present, its source is mainly chemical synthesis, and sulfur or sulfide minerals are generally used as raw materials; due to the lack of sulfur resources in my country, a large amount of sulfur needs to be imported every year to meet the demand, which consumes a lot of foreign exchange; the high cost of ore mining will damage the ecological environment, economy and society. The benefits are p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07B45/02C07C303/06C07C309/31C07C309/35C07C309/30C07C309/40C07C309/29C07C309/39B01D53/14
CPCC07B45/02C07C303/06B01D53/1481B01D53/1493B01D2251/304B01D2258/0283C07C309/31C07C309/35C07C309/30C07C309/40C07C309/29C07C309/39
Inventor 孔繁昇刘占峰
Owner 孔繁昇
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