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K12 precursor composition for preparing k12 dry matter

A K12 and composition technology, which is applied in the field of preparation of K12 dry matter, can solve the problems of difficult vibration crushing, low vibration crushing production efficiency, sticking and agglomeration of strips, etc.

Active Publication Date: 2020-12-25
上海奥威日化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the water content is not reduced to 1-5%, there will be a problem of sticking the extruded strips into agglomerates during the extrusion process, which will make the subsequent vibration crushing difficult, resulting in very low vibration crushing production efficiency

Method used

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  • K12 precursor composition for preparing k12 dry matter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] 1. Preparation of K12 precursor composition for wipe film drying

[0066] To the K12 paste (wherein sodium lauryl sulfate and Na 2 SO 4 The mass ratio of sodium lauryl sulfate to water is 100:0.8, the mass ratio of sodium lauryl sulfate to water is 100:35, and the pH is 7.5) by adding Na 2 SO 4 Until a is 3.00, stir evenly to obtain the K12 precursor composition.

[0067] 2. Scrape film drying

[0068] The above-mentioned K12 precursor composition is continuously fed into the wiped film dryer at a feed rate of 2000kg / h. The wiped film drying temperature is 105°C, and the operating pressure of the wiped film dryer is 95kPa. Motor connection, the voltage of the film dryer motor is 380V, the frequency of the film dryer motor is 50HZ, the speed of the film dryer motor is 1480r / min, the speed ratio of the film dryer reducer is 6.54, and the material to be dried The residence time in the wiped film dryer was 50 seconds. The experimental results are: the power consumptio...

Embodiment 2

[0072] 1. Preparation of K12 precursor composition for wipe film drying

[0073] To the K12 paste (wherein sodium lauryl sulfate and Na 2 SO 4 The mass ratio of sodium lauryl sulfate to water is 100:0.8, the mass ratio of sodium lauryl sulfate to water is 100:35, and the pH is 7.5) by adding Na 2 SO 4 Until a is 1.80, stir evenly to obtain the K12 precursor composition.

[0074] 2. Scrape film drying

[0075] The above-mentioned K12 precursor composition is continuously fed into the wiped film dryer at a feed rate of 2000kg / h. The wiped film drying temperature is 105°C, and the operating pressure of the wiped film dryer is 95kPa. Motor connection, the voltage of the film dryer motor is 380V, the frequency of the film dryer motor is 50HZ, the speed of the film dryer motor is 1480r / min, the speed ratio of the film dryer reducer is 6.54, and the material to be dried The residence time in the wiped film dryer was 50 seconds. The result of the experiment is: the power consump...

Embodiment 3

[0079] 1. Preparation of K12 precursor composition for wipe film drying

[0080]To the K12 paste (wherein sodium lauryl sulfate and Na 2 SO 4 The mass ratio of sodium lauryl sulfate to water is 100:0.8, the mass ratio of sodium lauryl sulfate to water is 100:35, and the pH is 7.5) by adding Na 2 SO 4 Until a is 1.20, stir evenly to obtain the K12 precursor composition.

[0081] 2. Scrape film drying

[0082] The above-mentioned K12 precursor composition is continuously fed into the wiped film dryer at a feed rate of 2000kg / h. The wiped film drying temperature is 105°C, and the operating pressure of the wiped film dryer is 95kPa. Motor connection, the voltage of the film dryer motor is 380V, the frequency of the film dryer motor is 50HZ, the speed of the film dryer motor is 1480r / min, the speed ratio of the film dryer reducer is 6.54, and the material to be dried The residence time in the wiped film dryer was 50 seconds. The results of the experiment are: the power consum...

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Abstract

The invention relates to a K12 precursor composition for preparation of a K12 dried matter, and mainly solves the problem of bonding agglomeration of strip matters extruded by a film-scraped dried matter in a subsequent extrusion process in the prior art; the technical problem is well solved by adopting the K12 precursor composition for the preparation of the K12 dried matter, wherein the K12 precursor composition includes lauryl sodium sulfate, inorganic salt and water, the inorganic salt includes Na2SO4, and the K12 precursor composition includes, in parts by weight, 100 parts of sodium dodecyl sulfate, a parts of Na2SO4, and b parts of water, wherein a is greater than 1.0 and b is 20-900; the K12 precursor composition can be used for industrial production of the K12 dried matter.

Description

technical field [0001] The invention relates to a K12 precursor composition for preparing a K12 dry product, a preparation method of the precursor composition and a preparation method of a K12 dry product. Background technique [0002] Sodium lauryl sulfate is an important daily chemical raw material, referred to as K12, also known as K-12, AS or SDS. [0003] The mainstream process for producing K12 powder mainly includes the sulfonation of dodecyl alcohol to generate dodecyl sulfate, and the dodecyl sulfate is neutralized with aqueous sodium hydroxide to convert dodecyl sulfate into dodecyl sulfate. sodium sulfate. Since the aqueous sodium hydroxide solution used for neutralization contains water, the neutralization reaction also generates water, and the inorganic compound containing +6 sulfur remaining in the sulfonation stage (as SO 3 or sulfuric acid, etc.) is converted to Na in the neutralization stage 2 SO 4 , so what is actually obtained after the neutralization ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C303/42C07C303/44C07C305/04
CPCC07C303/42C07C303/44C07C305/04
Inventor 袁志武罗芳王宝
Owner 上海奥威日化有限公司