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Temperature-resistant polymer based on low-pyruvate xanthan gum and application of temperature-resistant polymer

A technology of pyruvate-based yellow and polymer, which is applied in the direction of drilling compositions, chemical instruments and methods, etc., can solve the problems of high complex cost, high reversion rate, and energy consumption, and achieve simple process operation and improved stability Good performance and thickening effect

Active Publication Date: 2021-12-28
SHANDONG FOOD & FERMENT IND RES & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The workload of mutagenesis screening strains is heavy, and the rate of reverse mutation is high; genetic engineering transformation and breeding need to modify multiple genes, the research cost is greatly increased, and the vitality of the strains is reduced due to genetic modification, and the production and fermentation process is complicated and costly; The cross-linking process steps are cumbersome, consume a lot of energy, and significantly increase the application cost of xanthan gum products

Method used

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  • Temperature-resistant polymer based on low-pyruvate xanthan gum and application of temperature-resistant polymer
  • Temperature-resistant polymer based on low-pyruvate xanthan gum and application of temperature-resistant polymer

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Embodiment 1

[0044] Embodiment 1 A temperature-resistant type xanthan gum polymer, comprising the following components and mass fraction thereof:

[0045] Low Pyruvate Xanthan Gum 72%

[0046] Stabilizer 18%

[0047] Protectant 10%

[0048] The pyruvate group content of the low-pyruvate group xanthan gum product (L-3) is 0.087%; the stabilizer is succinaldehyde; and the protecting agent is sodium sulfite.

[0049] The preparation method of described temperature-resistant type xanthan gum polymer (L-3*) is: take low-pyruvate group xanthan gum (L-3) 720g, glyoxal 180g, sodium sulfite 100g respectively, fully mix, Obtain 1000 g of temperature-resistant xanthan gum temperature-resistant polymer (L-3*), and seal it for future use.

Embodiment 2

[0050] Embodiment 2 A temperature-resistant xanthan gum polymer, comprising the following components and mass fraction thereof:

[0051] Low Pyruvate Xanthan Gum 60%

[0052] Stabilizer 20%

[0053] Protectant 20%

[0054] The pyruvate group content of the low-pyruvate-group xanthan gum product (L-3-2) is 0.057%; the stabilizer is succinic acid; and the protecting agent is sodium thiosulfate.

[0055] The preparation method of the temperature-resistant xanthan gum polymer (L-3-2*) is: respectively weigh 720g of low-pyruvate xanthan gum (L-3-2), 180g of oxalic acid, thiosulfuric acid Sodium 100g, fully mix evenly, obtain temperature resistant type xanthan gum polymer (L-3-2*) 1000g, seal up for future use.

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Abstract

The invention relates to a temperature-resistant polymer and application of the polymer. Xanthan gum is biological gum which integrates thickening, suspending, emulsifying and stabilizing and is excellent in performance, and is widely applied to the field of oil extraction at present. However, the traditional xanthan gum has the defect of insufficient stability in a high-temperature operation environment. In order to overcome the technical defects, the invention provides a temperature-resistant polymer which comprises low-pyruvate xanthan gum, a stabilizer and an antioxidant protective agent. Through verification, the temperature-resistant polymer provided by the invention can effectively prolong the stability of the xanthan gum under a high-temperature condition, the viscosity retention rate is remarkably improved compared with that of the traditional xanthan gum, the defect of insufficient thermal stability of the traditional xanthan gum is effectively overcome, and the rheological property is also improved; when applied to the field of oil recovery as a completion fluid, the polymer can effectively reduce the operation difficulty, and can also be used as a tertiary oil recovery assistant.

Description

technical field [0001] The invention belongs to the technical field of microbial polymer materials, and in particular relates to a heat-resistant polymer based on low-pyruvate xanthan gum and the application of the polymer. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Xanthan gum is an acidic extracellular heteropolysaccharide produced by Xanthomonas campestris. Its main chain is composed of D-glucose linked by β-1,4 glycosidic bonds, and the trisaccharide side chain is composed of D- Mannose, D-glucuronic acid and D-mannose are connected and connected to the glucose residue on the main chain through α-1,3 glycosidic bonds, and the mannose residue at the end of the sid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/588C09K8/584C09K8/035C09K8/512C09K8/514C09K8/88C09K8/90
CPCC09K8/588C09K8/035C09K8/514C09K8/512C09K8/584C09K8/905C09K8/887C09K8/90
Inventor 董学前袁帅张永刚张艳敏韩鸿宇姜天翼王伟
Owner SHANDONG FOOD & FERMENT IND RES & DESIGN INST
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