CN106563386A - Production process for fatty alcohol-polyoxyethylene ether - Google Patents
Production process for fatty alcohol-polyoxyethylene ether Download PDFInfo
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- CN106563386A CN106563386A CN201510652730.4A CN201510652730A CN106563386A CN 106563386 A CN106563386 A CN 106563386A CN 201510652730 A CN201510652730 A CN 201510652730A CN 106563386 A CN106563386 A CN 106563386A
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- fatty alcohol
- alcohol
- ether
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- polyoxyethylene ether
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The adduct of fatty alcohol and an epoxy compound is usually called 'alcohol ether' and is a typical nonionic surfactant. The alcohol ether has been developed rapidly since the alcohol ether started to be applied to detergents in 1930s. Especially with the development of petrochemical engineering in recent years, the sources of epoxy compounds are rich, the cost is reduced day by day, the ratio of the yield of alcohol ether production in the total quantity of surfactants is larger and larger, and the application field is enlarged day by day. The invention provides a production process for fatty alcohol-polyoxyethylene ether. Liquid sulphur is burnt to generate SO2, the SO2 is converted into mixed gas of SO3, the mixed gas serves as a sulfonating agent to be subjected to continuous sulfonation reaction with the fatty alcohol-polyoxyethylene ether, and an AES product is obtained finally.
Description
The addition product of fatty alcohol and epoxide, is typical nonionic surfactant commonly known as " alcohol ether ".
Background technology
Alcohol ether has quickly grown since starting to be applied to detergent from the thirties in last century, particularly develop recently as petrochemical industry, epoxide abundance, cost is also reduced increasingly, the ratio that the yield of alcohol ether production accounts for surfactant total amount is increasing, application expanding day.
The content of the invention
The present invention provides a kind of fat alcohol polyethylene ether production technology.By the way that Molten sulphur burning is generated into SO2 and the inverted mixed gas into SO3, continuous sulfonating reaction is carried out as sulfonating agent and fatty alcohol-polyoxyethylene ether, finally give AES products.
The main chemical equation of production process is as follows：
AES is produced mainly by the preparation of SO3 gaseous mixtures, sulfonation, neutralization, adjustment etc.：
（1）The preparation of SO3 gaseous mixtures
Surrounding air adsorption dry again after dehydration, obtains dry air of the dew point less than -60 DEG C, for rear road
Operation, i.e. combustion sulfur, conversion, sulfonation are used.130 DEG C ~ 150 DEG C of molten sulfur is promoted by product pump in liquid sulfur pit,
Sulfur burner is quantitatively sent into after filtering combustion reaction occurs with the oxygen in dry air, generate SO2.From combustion sulfur
Stove SO2 out enters SO3 converters, the SO2 in the presence of catalyst after cooling, displacement reaction heat
SO3, mixed gas are generated with the oxygen reaction in dry air（Excess air, SO3, SO2）Through remaining
It is used for fatty alcohol-polyoxyethylene ether sulfonation after hot steam generator cooling heat transferring, the SO2 not being converted is not involved in
Sulfonating reaction is discharged with sulfonated tail gas, is finally absorbed by sulfonated tail gas absorption tower.
（2）Sulfonation operation
Fatty alcohol-polyoxyethylene ether is first with raw material dosing pump by fatty alcohol-polyoxyethylene ether storage tank (AEO storage tanks)
Squeezing into AEO blending tanks carries out pre- stirring, then sends into sulfonation reactor after filtering, and sulphur occurs with SO3 gases
S + O2 SO2
2 SO2 + O2 2 SO3
（1）SO3 is generated：
V2O5
（2）Sulfonation generates dodecyl ether sulfate（AES products）：
+ NaOH + H2O
RO-CH2CH2-(CH2CH2O)n-OH + SO3
R-(CH2CH2O)n+1-OSO3H
R-(CH2CH2O)n+1-OSO3H R-(CH2CH2O)n+1-OSO3Na
Change reaction.Sulfonating reaction generates alkyl polyoxyethylene sulfates, and reacting the material for obtaining carries out gas-liquid separation, point
The liquid for separating out is sulfonated products, is used to produce AES in follow-up producing process as intermediate product；Point
The sulfonated tail gas for separating out first Jing after two grades of demistings of cyclone separator and electrostatic precipitator, into tail gas absorber,
Jing newly-built aiutage high altitude discharge after the process of alkali liquor spray-absorption.The acid that cyclonic separation and electrostatic demisting are collected is main
Want composition to be sulphuric acid, receive outside after acid mixes with built SO3 absorption towers after intending collecting and sells.
（3）Neutralization step
The liquid sulfonated products isolated enter closed neutralization reactor, meet water, the alkali liquor of proportioning by meter
Amount pump is neutralized into reactor with sulfonated products.
（4）Adjustment operation
After neutralized reaction product is using citric acid and hydrogen peroxide adjustment, vacuum outgass are carried out.In due to preventing production process
Raw material may impure or other debris may drop into reactor and enter final products, the product being thoroughly degassed
Finished product temporary storage tank can be pumped to as AES products after filtration, then enter various by automatic filling line fill
The Plastic Drum of specification.
Claims (1)
1. proportioning raw materials and production process of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510652730.4A CN106563386A (en) | 2015-10-11 | 2015-10-11 | Production process for fatty alcohol-polyoxyethylene ether |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510652730.4A CN106563386A (en) | 2015-10-11 | 2015-10-11 | Production process for fatty alcohol-polyoxyethylene ether |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106563386A true CN106563386A (en) | 2017-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510652730.4A Pending CN106563386A (en) | 2015-10-11 | 2015-10-11 | Production process for fatty alcohol-polyoxyethylene ether |
Country Status (1)
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| CN (1) | CN106563386A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574883A (en) * | 2018-11-29 | 2019-04-05 | 四川金桐精细化学有限公司 | A kind of preparation method of ethoxylated alkyl sulfate |
| CN112646168A (en) * | 2020-12-22 | 2021-04-13 | 赞宇科技集团股份有限公司 | Method and equipment for improving solubility of sodium fatty alcohol polyoxyethylene ether sulfate |
| CN112795004A (en) * | 2020-12-22 | 2021-05-14 | 赞宇科技集团股份有限公司 | Production process and production system of fatty alcohol-polyoxyethylene ether sodium sulfate |
-
2015
- 2015-10-11 CN CN201510652730.4A patent/CN106563386A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109574883A (en) * | 2018-11-29 | 2019-04-05 | 四川金桐精细化学有限公司 | A kind of preparation method of ethoxylated alkyl sulfate |
| CN112646168A (en) * | 2020-12-22 | 2021-04-13 | 赞宇科技集团股份有限公司 | Method and equipment for improving solubility of sodium fatty alcohol polyoxyethylene ether sulfate |
| CN112795004A (en) * | 2020-12-22 | 2021-05-14 | 赞宇科技集团股份有限公司 | Production process and production system of fatty alcohol-polyoxyethylene ether sodium sulfate |
| CN112795004B (en) * | 2020-12-22 | 2023-09-26 | 赞宇科技集团股份有限公司 | Production process and production system of fatty alcohol polyoxyethylene ether sodium sulfate |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170419 |
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| WD01 | Invention patent application deemed withdrawn after publication |