Method for preparing instant guar gum applicable to continuous blending under low temperature condition

A technology of low-temperature conditions and guar gum, applied in the field of natural polymer chemistry, can solve the problems of complex separation and purification process of products, poor process control repeatability, and affecting the health of employees, so as to expand the application range, speed up the dissolution and viscosity increase, The effect of strong hardness

Active Publication Date: 2014-03-19
山东金明新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of alcohol washing, alcohol affects the health of employees, and it is time-consuming, laborious and costly; in the process of water washing, alkali needs to be added, which not only wastes water resources, increases costs, but also produces a large amount of waste water, polluting the environment
Therefore, the existing preparation process requires a large amount of alcohol, and the product requires a complicated separation and purification process, and the alcohol is flammable, pollutes the environment, and the repeatability of process control is poor.

Method used

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  • Method for preparing instant guar gum applicable to continuous blending under low temperature condition
  • Method for preparing instant guar gum applicable to continuous blending under low temperature condition
  • Method for preparing instant guar gum applicable to continuous blending under low temperature condition

Examples

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Effect test

Embodiment 1

[0033] A kind of preparation method of the instant guar gum that is suitable for continuous mixing under low temperature condition, the steps are as follows:

[0034] (1) Add 600 parts of guar gum film and 40 parts of solid sodium hydroxide successively into the food-grade reinforced stainless steel kneader device, and stir;

[0035] (2) Add 500 parts of water for mixing, and heat up to 65°C for 20 minutes;

[0036] (3) Add 100 parts of propylene oxide to react for 3.0 hours, then add 35 parts of acetic acid, and continue to stir for 30 minutes, so that the pH of the material is 7.5;

[0037] (4) Add 2.5 parts of nanomaterial ZnO and 60 parts of surface treatment agent fatty acid monoglyceride, continue to react at 65°C for 2.0h, and discharge;

[0038] (5) Roll the obtained materials into filaments with a four-roller, and then dry them with a turbulent flow dryer at 65°C until their water content reaches 22.3%;

[0039] ⑹ Grinding and sorting with an airflow vortex microniz...

Embodiment 2

[0045] A kind of preparation method of the instant guar gum that is suitable for continuous mixing under low temperature condition, the steps are as follows:

[0046] (1) Add 800 parts of guar gum film and 55 parts of solid sodium hydroxide successively into the food-grade reinforced stainless steel kneader device, and stir;

[0047] (2) Add 800 parts of water for mixing, and heat up to 59°C for 20 minutes;

[0048] (3) Add 150 parts of propylene oxide to react for 3.0 hours, then add 48 parts of acetic acid, and continue to stir for 30 minutes, so that the pH value of the material is 7.0;

[0049] (4) Add 3.0 parts of nanomaterial ZnO and 85 parts of surface treatment agent sorbitol monoester, continue to react at 59°C for 2.0 hours, and discharge;

[0050] (5) Roll the obtained materials into filaments with a four-roller, and then dry them with a turbulent flow dryer at 59°C until their water content reaches 26.9%;

[0051] ⑹ Grinding and sorting with an airflow vortex mic...

Embodiment 3

[0057] A kind of preparation method of the instant guar gum that is suitable for continuous mixing under low temperature condition, the steps are as follows:

[0058] (1) Add 600 parts of guar gum film and 40 parts of solid potassium hydroxide successively to the food-grade reinforced stainless steel kneader device, and stir;

[0059] (2) Add 500 parts of water for mixing, and heat up to 70°C for 20 minutes;

[0060] (3) Add 100 parts of propylene oxide to react for 3.0 hours, then add 35 parts of citric acid, and continue to stir for 30 minutes, so that the pH of the material is 7.0;

[0061] (4) Add 2.5 parts of nanomaterial ZnO and 60 parts of surface treatment agent sorbitol monoester, continue to react at 65°C for 2.0h, and discharge;

[0062] (5) Roll the obtained materials into filaments with a four-roller machine, and then dry them with a turbulent flow dryer at 65°C until the water content reaches 24.0%;

[0063] ⑹ Grinding and sorting with an airflow vortex microni...

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Abstract

The invention relates to a method for preparing instant guar gum applicable to continuous blending under a low temperature condition. The method comprises the following steps: performing chemical modification and neutral reaction on guar gum pieces in a kneading machine so as to prepare hydroxypropyl guar gum pieces, adding a nano material and a surfactant to perform surface modification so as to obtain a surface modification material, subsequently performing a grinding technique based on a four-roller machine, a succeeding stretch and tackifying technique, a turbulent flow drying technique and an airflow vortex micro powder crushing and separation technique on the surface modification material so as to obtain the instant guar gum applicable to continuous blending under the low temperature condition. By adopting the method, the difficult problem of construction in winter and autumn in northern areas can be solved, the complex separation and purification processes of washing in alcohol and water are omitted, and the method has the characteristics of freedom of wastewater and waste gas discharge in the reaction process, safety, environment friendliness, simple process, low cost, high reaction efficiency and good guar gum instant solubility.

Description

technical field [0001] The invention belongs to the field of natural polymer chemistry, and relates to the preparation of guar gum fracturing fluid under the condition of minus 20°C to 30°C in winter in the north, especially a kind of guar gum sheet or guar gum powder as raw material which is suitable for low temperature conditions The preparation method of the instant guar gum of down continuous mixing. Background technique [0002] Hydraulic fracturing is the main technique for increasing oil and gas production in tight oil and gas reservoirs, and fracturing fluid is the key factor for the success of fracturing. At present, water-based fracturing fluid is mainly used, and its thickening agent is mainly guar gum and its derivatives. things. Most of PetroChina's oilfields are located in the northern region, and the construction time in spring and winter accounts for 1 / 3 of the whole year. Due to the fact that the existing guar gum thickener has poor solubility or basically ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00C09K8/68
Inventor 李建忠管保山梁利刘苹刘玉婷
Owner 山东金明新材料有限公司
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