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Production process and production system of fatty alcohol polyoxyethylene ether sodium sulfate

A technology of alcohol polyoxyethylene ether sodium sulfate and alcohol polyoxyethylene ether, which is applied in the production process and production system of sulfonated fatty alcohol polyoxyethylene ether, and in the field of SO3/air mixed gas, which can solve the impact on the quality of sulfonated products , complex operation, long process flow, etc., to achieve the effect of equipment cost and energy consumption reduction, simple control, and short process flow

Active Publication Date: 2021-05-14
ZANYU TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drying of the process air needs to be carried out in a drying tower filled with recycled fillers (silica gel, activated alumina). The drying tower is divided into upper and lower layers, which are used alternately. After the filler absorbs water, it needs to be dried and dehydrated, and then reused after cooling. Use layer by layer and prepare for regeneration layer by layer, which complicates the overall process, and the fluctuation of dew point of dry air will have a great impact on the quality of subsequent products, which is not conducive to continuous production
[0005] SO 3 The / air mixed gas generation process has strict requirements on the dew point of the dry air, the process is long, the operation is complicated, and there are many factors that affect the product quality. The main reason is that the moisture in the process air has a great impact on the quality of the sulfonated product. SO using cooling air 3 / air sulfonation process has not been reported

Method used

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  • Production process and production system of fatty alcohol polyoxyethylene ether sodium sulfate
  • Production process and production system of fatty alcohol polyoxyethylene ether sodium sulfate
  • Production process and production system of fatty alcohol polyoxyethylene ether sodium sulfate

Examples

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Effect test

Embodiment 1

[0036] The present embodiment provides a kind of production technology of fatty alcohol polyoxyethylene ether sodium sulfate, and flow rate is 4580m 3 After the outside air is removed by the filter, it enters the Roots blower for compression, and the pressure at the outlet of the blower increases to about 56KPa, and then the gas enters the low-temperature air condenser; the hot air in the low-temperature air condenser is cooled by two cooling media in turn, respectively For cooling water and ethylene glycol solution at 0±4°C, the hot air passes through the two cooling media to obtain cooling air with a temperature of 8°C; the cooling air directly enters the sulfur furnace, and the flow rate of the liquid sulfur delivery pump is 240kg / h of liquid sulfur burns in a sulfur furnace to form SO 2 / air mixed gas, the outlet temperature of the sulfur furnace is 600°C; SO 2 / Air mixed gas is cooled to about 450°C through the air cooler on the upper part of the conversion tower, and t...

Embodiment 2

[0042] The present embodiment provides a kind of production technology of fatty alcohol polyoxyethylene ether sodium sulfate, and flow rate is 4200m 3 After the outside air is removed by the filter, it enters the Roots fan for compression, and the pressure at the outlet of the fan increases to about 55KPa, and then the gas enters the low-temperature air condenser; the hot air in the low-temperature air condenser is cooled by two cooling media in turn, respectively For cooling water and ethylene glycol solution at 0±4°C, the hot air passes through the two cooling media to obtain cooling air with a temperature of 8°C; the cooling air directly enters the sulfur furnace, and the flow rate of the liquid sulfur delivery pump is 240kg / h of liquid sulfur burns in a sulfur furnace to form SO 2 / air mixed gas, the outlet temperature of the sulfur furnace is 610°C; SO 2 / Air mixed gas is cooled to about 450°C through the air cooler on the upper part of the conversion tower, and then pa...

Embodiment 3

[0047] The present embodiment provides a kind of production technology of fatty alcohol polyoxyethylene ether sodium sulfate, and flow rate is 5775m 3 After the outside air is removed by the filter, it enters the Roots blower for compression, and the pressure at the outlet of the blower increases to about 56KPa, and then the gas enters the low-temperature air condenser; the hot air in the low-temperature air condenser is cooled by two cooling media in turn, respectively For cooling water and ethylene glycol solution at 0±4°C, the hot air passes through the two cooling media to obtain cooling air with a temperature of 8°C; the cooling air directly enters the sulfur furnace, and the flow rate of the liquid sulfur delivery pump is 330kg / h of liquid sulfur burns in a sulfur furnace to form SO 2 / air mixed gas, the outlet temperature of the sulfur furnace is 600°C; SO 2 / Air mixed gas is cooled to about 450°C through the air cooler on the upper part of the conversion tower, and t...

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Abstract

The invention belongs to the technical field of fine chemical engineering, and aims to provide a production process of fatty alcohol polyoxyethylene ether sodium sulfate. The sulfonating agent SO3 gas used in the process is SO2 / air mixed gas obtained by burning liquid sulfur and compressed and cooled process air, the SO2 / air mixed gas is oxidized in a conversion tower under the action of a catalyst to generate SO3 / air mixed gas, and the mixed gas at the outlet of the conversion tower can be directly used for sulfonating fatty alcohol-polyoxyethylene ether after being cooled, atomized and deacidified by an atomizing tank and filtered by a demister, so as to obtain fatty alcohol-polyoxyethylene ether sodium sulfate meeting requirements. Compared with the currently reported process, the process technology disclosed by the invention has the advantages of low dew point requirement on process air, simplified production equipment, shortened process flow and low process energy consumption, so that the process technology has a wide application prospect in actual production.

Description

technical field [0001] The invention belongs to the technical field of fine chemical industry, relates to the production process of fatty alcohol polyoxyethylene ether sodium sulfate, specifically a kind of SO2 with suitable gas concentration obtained by optimizing sulfur burning method 3 / air mixed gas, used for the production process and production system of sulfonated fatty alcohol polyoxyethylene ether. Background technique [0002] Sulfonation / sulfation reaction (collectively referred to as sulfonation reaction), as the main chemical method used in the industrial production of pigments, dyes, pesticides and organic intermediates, has been widely studied at home and abroad. By using different sulfonating agents to convert (-SO 3 ) group is introduced into the organic molecule, so that the organic molecule has (-CS(O 2 )OX) structure to obtain a variety of products, including sulfonic acid (X=H), sulfate (X=M, M is a metal cation), sulfonyl halide (X is a halogen), etc....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/326C01B17/74
CPCC08G65/326C01B17/74
Inventor 史立文刘炜康葛赞邹欢金胡剑品钟凯雷小英李伏益李帮国洪郑
Owner ZANYU TECH GRP CO LTD
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