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Preparation method of liquid welan gum

A warm roller glue and liquid technology, which is applied in the field of preparation of microbial polysaccharide solution, can solve the problems of easy agglomeration, incomplete dissolution, large loss, etc., and achieves convenient industrial transportation and use, easy source of raw materials, and guaranteed safety. Effect

Active Publication Date: 2014-07-16
HEBEI XINHE BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the warm rubber is used in the field or at sea, the powder is easy to fly, and the loss is large, and it falls on the work surface and forms a solution after meeting water, which makes the work table slippery. The safety of the operator is poor; and the powder temperature rubber is used directly. When added to oil-based mud in oil drilling, the solution is incomplete and easy to agglomerate, which affects the use efficiency; in addition, there are problems such as cumbersome use process and difficult operation of powdered temperature wheel rubber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The technical scheme of the present embodiment comprises the following process steps:

[0029] A. Preparation of Wenlun Rubber Mixture

[0030] According to the ratio of Wenlun glue aqueous solution: solvent = 1:1, mix the Wenlun glue aqueous solution with a mass percentage of 0.1% and the solvent evenly to make a mixed solution, and the solvent is selected from any one of corn oil and castor oil or a mixture thereof ;

[0031] B. Emulsifier pretreatment

[0032] B1, according to the mass ratio of ethylene glycol monostearate: solvent = 1:1 ratio, will be equivalent to 0.1% of the total mass of the mixed solution prepared in step A Add ethylene glycol monostearate to the solvent to heat up , stir to make ethylene glycol monostearate solution after fully dissolving, and solvent selects any one or its mixture in corn oil, castor oil;

[0033] B2. According to the mass ratio of distilled glyceryl monostearate: water = 1:1, add distilled glyceryl monostearate equivalent ...

Embodiment 2

[0043] The technical scheme of the present embodiment comprises the following process steps:

[0044] A. Preparation of Wenlun Rubber Mixture

[0045] According to the ratio of Wenlun glue aqueous solution: solvent = 1:1.5, mix the Wenlun glue aqueous solution with a mass percentage of 0.2% and the solvent to make a mixed solution, and the solvent is selected from any one of corn oil and castor oil or a mixture thereof ;

[0046] B. Emulsifier pretreatment

[0047] B1, according to the mass ratio of ethylene glycol monostearate: solvent = 1:2 ratio, the ethylene glycol monostearate equivalent to 0.3% of the total mass of the mixed solution prepared in step A is added to the solvent to heat up , stir to make ethylene glycol monostearate solution after fully dissolving, and solvent selects any one or its mixture in corn oil, castor oil;

[0048]B2. According to the mass ratio of distilled glyceryl monostearate: water = 1:2, add distilled glyceryl monostearate equivalent to 0....

Embodiment 3

[0058] The technical scheme of the present embodiment comprises the following process steps:

[0059] A. Preparation of Wenlun Rubber Mixture

[0060] According to the ratio of Wenlun glue solution: solvent = 1:1.2, mix the Wenlun glue solution with a mass percentage of 0.15% and the solvent to make a mixed solution. The solvent is any one of corn oil and castor oil or a mixture thereof ;

[0061] B. Emulsifier pretreatment

[0062] B1, according to mass ratio is ethylene glycol monostearate: the ratio of solvent=1:1.5, will be equivalent to the ethylene glycol monostearate of 0.2% of the total mass of the mixed solution prepared in step A to add in the solvent and heat up , stir to make ethylene glycol monostearate solution after fully dissolving, and solvent selects any one or its mixture in corn oil, castor oil;

[0063] B2. According to the mass ratio of distilled glyceryl monostearate: water=1:1.5, add distilled glyceryl monostearate equivalent to 0.2% of the total mas...

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Abstract

The invention belongs to the preparation of microbial polysaccharide solutions and particularly relates to a preparation method of liquid welan gum. The preparation method comprises the steps of preparing a welan gum mixed solution; pretreating an emulsifying agent; blending; preparing the liquid welan gum and the like. The preparation method is simple and can be used for solving the technical problems that powdery welan gum can not be directly used for oil base mud in petroleum drilling when used, the operation safety is poor and the like in the prior art; in addition, the liquid welan gum is suitable for industrial production, transportation and storage, good in stability, rapid and uniform in mixing with the oil base sludge, free of fly ash rising in a using process, beneficial to environment friendliness and capable of reducing material loss.

Description

technical field [0001] The invention belongs to the preparation of microbial polysaccharide solution, in particular to a preparation method of liquid Wenlun glue. Background technique [0002] WELAN GUM is an industrial-grade microbial polysaccharide, which contains neutral sugar, D-glucose, D=glucuronic acid, L-rhamnose and L=mannose, and glycoside-bonded acetyl esters base. Jansson PE, Lindberg B and Widmalm G (1985) described the structure of the polysaccharide in "Carbohydrate Research" (139, 217-223), and the patent No. 200610012511.0 discloses a preparation method of Wenlun glue , the current Wenlun glue is solid powder and has good temperature resistance. Its aqueous solution has good viscosity and rheological properties, and can withstand high concentrations of calcium ions. It can be used as a cement admixture in the cement industry to increase ore Improve the consistency and rheological properties of concrete, improve the stability of concrete self-compacting, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/09C08L5/00C04B24/08
Inventor 张禹张国沛张少华贾敬敏脱勇国
Owner HEBEI XINHE BIOCHEM