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CN-121991144-A - Plant polyphenol-based fixing agent and preparation method and application thereof

CN121991144ACN 121991144 ACN121991144 ACN 121991144ACN-121991144-A

Abstract

The invention discloses a plant polyphenol-based fixing agent, a preparation method and application thereof, and relates to the technical field of drilling solid waste treatment, wherein the plant polyphenol-based fixing agent is prepared by uniformly mixing plant polyphenol with a catalyst, adding phenyl-containing diglycidyl ether, and reacting, wherein the plant polyphenol contains one or more benzene ring structures and has phenolic hydroxyl functional groups, the catalyst is one or more of sodium methoxide, potassium methoxide, sodium ethoxide and potassium ethoxide, the addition amount of the catalyst is 1-5wt% of the total mass of the plant polyphenol and the phenyl-containing diglycidyl ether, and the mass ratio of the plant polyphenol to the phenyl-containing diglycidyl ether is 2-10:1, so that the technical problems of high drilling solid waste treatment cost, long period, short fixing time, high content of leachate pollutants and the like in the prior art are solved.

Inventors

  • LIU HANJUN
  • TANG HONG
  • LIU SHI
  • JIANG XUEBIN
  • WANG XIALING
  • SUN YU
  • HE JIAN
  • MI YUANZHU
  • ZOU YIWEI
  • WANG XIAOLI

Assignees

  • 中国石油天然气集团有限公司
  • 中国石油集团川庆钻探工程有限公司

Dates

Publication Date
20260508
Application Date
20241104

Claims (11)

  1. 1. A plant polyphenol-based fixing agent is characterized in that after plant polyphenol and a catalyst are uniformly mixed, diglycidyl ether containing phenyl is added for reaction to obtain the plant polyphenol-based fixing agent, The plant polyphenol contains one or more benzene ring structures and has phenolic hydroxyl functional groups; the catalyst is one or more of sodium methoxide, potassium methoxide, sodium ethoxide and potassium ethoxide, the adding amount of the catalyst is 1-5wt% of the total mass of plant polyphenol and phenyl diglycidyl ether, and the mass ratio of the plant polyphenol to the phenyl diglycidyl ether is 2-10:1.
  2. 2. A plant polyphenol based fixative according to claim 1 wherein the plant polyphenol is one or more of tannic acid, anthocyanin, catechin, quercetin, gallic acid, ellagic acid, arbutin and polymers thereof.
  3. 3. A plant polyphenol based fixative according to claim 1 wherein the phenyl containing diglycidyl ether is one or more of bisphenol A diglycidyl ether, bisphenol A propoxylate diglycidyl ether, bisphenol F diglycidyl ether, bisphenol S diglycidyl ether, resorcinol diglycidyl ether.
  4. 4. The method for preparing a plant polyphenol based fixative of claim 1, comprising the steps of: I. Adding plant polyphenol and a catalyst into a solvent I, and then completely dissolving the plant polyphenol and the catalyst in a nitrogen atmosphere; II. Then adding diglycidyl ether containing phenyl to carry out ring-opening polymerization reaction; III, purifying the product obtained in the step II to obtain the plant polyphenol-based fixing agent.
  5. 5. The method of claim 4, wherein in step I, the solvent I is one or more of ethyl acetate, isobutanol, dioxane, xylene, butyl acetate, and ethylene glycol dimethyl ether.
  6. 6. The method for preparing a plant polyphenol based fixative according to claim 4, wherein in the step II, after adding diglycidyl ether containing phenyl, the reaction temperature is controlled to 80-120 ℃ and the reaction time is controlled to 5-24 hours.
  7. 7. The method for preparing a plant polyphenol based fixative according to claim 6, wherein in the step II, after adding diglycidyl ether containing phenyl, the reaction time is 5-24 hours.
  8. 8. The method for preparing a plant polyphenol-based fixative according to claim 4, wherein in the step III, the purification method is that a second solvent is added into the resultant, the resultant is placed in an ultrasonic cleaner for ultrasonic treatment for 5-10 min, and then the resultant is subjected to high-speed centrifugal separation under the condition of 3000rpm and freeze-dried for 24 hours, so that the purified plant polyphenol-based fixative is obtained.
  9. 9. The method of claim 8, wherein the second solvent is one or more of methanol, ethanol, water, etc.
  10. 10. Use of a plant polyphenol based fixative as set forth in any of claims 1-9 in the treatment of solid waste from drilling.
  11. 11. The application of the method according to claim 10, wherein the plant polyphenol-based fixing agent is added in an amount of 1-5wt% of the total materials when the drilling solid waste is treated.

Description

Plant polyphenol-based fixing agent and preparation method and application thereof Technical Field The invention relates to the technical field of drilling solid waste treatment, in particular to a plant polyphenol-based fixing agent, a preparation method and application thereof. Background Water-based drilling solid waste is an inevitable product of conventional drilling operations. The solid drilling waste contains a large amount of chemical additives, oil, heavy metal ions and other substances, if the solid drilling waste is not treated, a large amount of pollutants can flow into soil along with the leaching liquid in the open-air storage stage to pollute the environment. The main technical means of the prior drilling solid waste pretreatment stage are high-temperature oxidation treatment and microorganism strengthening treatment, the high-temperature oxidation treatment needs to consume a large amount of energy, the microorganism treatment needs to consume a large amount of natural soil, the treatment cost is high, the treatment period is overlong, the treatment effect is poor, and pollution can be caused if extreme weather is met in the treatment process. Therefore, it is necessary to provide a fixing agent for strengthening treatment of solid drilling wastes, so that pollutants are directly fixed in the solid drilling wastes, the treatment period is shortened, and the treatment cost is reduced, so that the subsequent further resource utilization is facilitated. Disclosure of Invention The invention aims to provide a plant polyphenol-based fixing agent, a preparation method and application thereof, wherein the plant polyphenol-based fixing agent can be used for directly fixing a dye in drilling solid waste, and solves the technical problems of high drilling solid waste treatment cost, long period, short fixing time, high pollutant content in leaching liquid and the like in the prior art. The invention is realized by the following technical scheme: A plant polyphenol-based fixing agent is prepared by mixing plant polyphenol with catalyst, adding diglycidyl ether containing phenyl, reacting to obtain plant polyphenol-based fixing agent, The plant polyphenol contains one or more benzene ring structures and has phenolic hydroxyl functional groups; the catalyst is one or more of sodium methoxide, potassium methoxide, sodium ethoxide and potassium ethoxide, the adding amount of the catalyst is 1-5wt% of the total mass of plant polyphenol and phenyl diglycidyl ether, and the mass ratio of the plant polyphenol to the phenyl diglycidyl ether is 2-10:1. Further, the plant polyphenol is one or more of tannic acid, anthocyanin, catechin, quercetin, gallic acid, ellagic acid, arbutin and polymers thereof. Further, the diglycidyl ether containing phenyl is one or more of bisphenol A diglycidyl ether, bisphenol A propoxylate diglycidyl ether, bisphenol F diglycidyl ether, bisphenol S diglycidyl ether, resorcinol diglycidyl ether. The method for preparing a plant polyphenol based fixative according to any of the preceding claims, comprising the steps of: I. Adding plant polyphenol and a catalyst into a solvent I, and then completely dissolving the plant polyphenol and the catalyst in a nitrogen atmosphere; II. Then adding diglycidyl ether containing phenyl to carry out ring-opening polymerization reaction; III, purifying the product obtained in the step II to obtain the plant polyphenol-based fixing agent. Further, in the step I, the solvent one is one or more of ethyl acetate, isobutanol, dioxane, xylene, butyl acetate and ethylene glycol dimethyl ether. Further, in the step II, after the diglycidyl ether containing phenyl is added, the reaction temperature is controlled to be 80-120 ℃ and the reaction time is controlled to be 5-24 hours. In the step II, after the diglycidyl ether containing phenyl is added, the reaction time is 5-24 hours. In the step III, the purification method comprises the steps of adding a second solvent into the product, placing the product in an ultrasonic cleaner for ultrasonic treatment for 5-10 min, performing high-speed centrifugal separation at 3000rpm, and freeze-drying for 24h to obtain the purified plant polyphenol-based fixing agent. In the actual treatment process, the ultrasonic treatment duration and the ultrasonic treatment times can be adjusted according to the actual conditions, generally, the ultrasonic treatment is carried out for 5-10 min each time and 2-4 times, and during centrifugal separation, the high-speed centrifugal rotation speed of 3000rpm is optimized, and the ultrasonic treatment time can also be adjusted according to the specific conditions. Further, the second solvent is one or more of methanol, ethanol, water and the like. Use of a plant polyphenol based fixing agent as described in any preceding claim in the treatment of solid waste from drilling. Further, when the drilling solid waste is treated, the addition amount of the plant polyphenol-based fixing agent