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Surfactant preparation method

A technology of surfactant, sulfofatty acid methyl ester sodium salt, applied in surface active detergent composition, chemical instrument and method, detergent composition and other directions, can solve the requirement of unable to maintain stable feeding and affect the quality of finished products , blockage, etc.

Active Publication Date: 2009-05-20
广州浪奇日用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) Due to various reasons such as technology, equipment, and funds, MES raw materials cannot be produced on a large scale in China, and currently there are only flake solid MES products
[0005] 2) If MES is applied to the washing powder preparation process, due to the high temperature and high alkalinity of the washing powder slurry in the washing powder preparation process, MES will be hydrolyzed under high temperature and high alkalinity conditions, which will affect the quality of the finished product, and MES It has a certain influence on the rheology of detergent powder slurry, and it is technically difficult to apply it to the pre-mixing production of detergent powder
[0006] 3) If MES is applied to the post-mixing process of washing powder, although it avoids the influence of high temperature and high alkalinity, its appearance is flaky, which does not match the appearance of washing powder powder, and because of the viscosity of MES itself and its presence in It is in a molten state at 50-60°C. If only a simple crushing process is performed, the problem of blockage during the crushing process cannot be solved.
[0007] 4) Even the crushed powdery MES, due to its poor fluidity, is difficult to discharge in the silo, resulting in clogging, unable to maintain and meet the requirements of stable discharge of washing powder in the production process

Method used

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Experimental program
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Embodiment Construction

[0021] 1. Preparation of surfactants containing MES

[0022] 1) Place the flake MES in a freezer with a freeze-drying device for 8 to 24 hours, the freezing temperature is not higher than 20°C, and the temperature of the MES before crushing is below 20°C;

[0023] 2) The flaky MES after freeze-drying enters the lower hopper to reach the crushing system of the crusher, and the air required at the crushing entrance must be cooled to below 20°C to become dry and frozen gas before entering the crusher;

[0024] 3) After crushing, the powdered MES with a certain particle size is put into a mixer and mixed with the other two solid raw materials, zeolite or soda ash (the addition of zeolite accounts for 0-50% of the total weight, and the addition of soda ash 0% to 50% of the total weight), start the mixer, and the mixing process needs more than 10 minutes to make it uniform;

[0025] 4) The mixed raw materials are sieved through a 10-150 mesh sieve to ensure that a uniform, agglomer...

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Abstract

The present invention discloses one kind of surfactant for after compounding to washing powder and the washing powder therewith. The surfactant is prepared with flaky MES, and through freeze drying, crushing and sieving, and the washing powder with the surfactant is produced through after compounding the surfactant into washing powder. The present invention applies MES as one new kind of surfactant with high performance / cost ratio and high cost superiority successfully in washing powder, and has wide application foreground.

Description

technical field [0001] The invention relates to a surfactant used in the after-mixing process of washing powder and washing powder containing the surfactant. Background technique [0002] MES (α-sulfo fatty acid methyl ester sodium salt) is a product obtained after sulfonation and neutralization of natural renewable raw materials such as coconut oil and palm oil. It is a surfactant with excellent performance. Calcium soap has dispersibility, low irritation and good biodegradability. Compared with the currently used surfactants, it has considerable advantages in cost performance and is environmentally friendly. It is used to replace petroleum by-products such as alkylbenzenesulfonic acid such as LAS The development and application of (sodium dodecylbenzene sulfonate) in detergents and personal care products is of great significance to solving the common problem of the industry's long-term dependence on petroleum, and has broad prospects for application in the washing industry...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D1/00C11D17/06
Inventor 陈韬陈树旭赵建红王志刚封林勋刘保区蕙莹关魁华
Owner 广州浪奇日用品有限公司