Double-effect organic macromolecular compound and preparation method thereof

A technology of organic macromolecules and compounds, applied in the field of fine chemicals, can solve the problems of cumbersome post-treatment process and high cost, and achieve the effects of improving net capture ability, inhibiting corrosion and fast flocculation

Inactive Publication Date: 2017-02-08
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the increasingly complex composition of water quality, the requirements for water treatment agents are also getting higher and higher. The traditional treatment method is to use multiple water treatment agents separately, but it is difficult to achieve the desired effect by using a variety of single treatment agents, which cannot meet the requirements. , and the cost is high, and the post-processing process is also very cumbersome

Method used

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  • Double-effect organic macromolecular compound and preparation method thereof
  • Double-effect organic macromolecular compound and preparation method thereof
  • Double-effect organic macromolecular compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The preparation of double-effect organic macromolecular compound comprises the following steps:

[0041] 1. Sodium p-acrylamide benzoate is obtained by the following method:

[0042] Add 13.7g of p-aminobenzoic acid and 30mL of ethyl acetate into a three-necked flask equipped with a stirrer, a constant pressure dropping funnel and a condenser, and slowly add 13.5g of acryloyl chloride dropwise with a constant pressure funnel at 0°C. And fully stirred, after reacting for 2 hours, the solvent ethyl acetate was removed by suction filtration, and washed twice with ethyl acetate to obtain p-acrylamide benzoic acid, which was then slowly neutralized to p-acrylamide benzoic acid with a mass fraction of 35% sodium hydroxide solution. The formic acid is completely dissolved, the water is distilled off, dried and pulverized to obtain sodium p-acrylamide benzoate;

[0043] Described Mannich base is made by following method:

[0044] (a) After mixing 11.16g of hydroxyethyl acryla...

Embodiment 2

[0049] The preparation of double-effect organic macromolecular compound comprises the following steps:

[0050] 1. Sodium p-acrylamide benzoate is obtained by the following method:

[0051] Add 13.7g of p-aminobenzoic acid and 20mL of ethyl acetate into a three-neck flask equipped with a stirrer, a constant pressure dropping funnel and a condenser tube, and slowly add 9g of acryloyl chloride dropwise with a constant pressure funnel at 10°C, and Stir well, and react for 1 hour, remove the solvent ethyl acetate by suction filtration, and wash twice with ethyl acetate to obtain p-acrylamide benzoic acid, then slowly neutralize to p-acrylamide benzoic acid with 45% sodium hydroxide solution Completely dissolved, distilled to remove water, dried and pulverized to obtain, sodium p-acrylamide benzoate;

[0052] Described Mannich base is made by following method:

[0053] (a) After mixing 11.6 g of hydroxyethyl acrylate and 6.06 g of triethylamine, place it in an ice-water bath, sti...

Embodiment 3

[0058] The preparation of double-effect organic macromolecular compound comprises the following steps:

[0059] 1. Sodium p-acrylamide benzoate is obtained by the following method:

[0060] Add 13.7g of p-aminobenzoic acid and 25mL of ethyl acetate into a three-necked flask equipped with a stirrer, a constant pressure dropping funnel and a condenser, and slowly add 10.8g of acryloyl chloride dropwise with a constant pressure funnel at 20°C. And fully stirred, after reacting for 1.5h, the solvent ethyl acetate was removed by suction filtration, and washed twice with ethyl acetate to obtain p-acrylamide benzoic acid, and then slowly neutralized to p-acrylamide with 50% sodium hydroxide solution The benzoic acid is completely dissolved, and the water is distilled off, dried and pulverized to obtain sodium p-acrylamide benzoate;

[0061] Described Mannich base is made by following method:

[0062] (a) After mixing 11.6 hydroxyethyl acrylate with 5g sodium hydroxide, place it in ...

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Abstract

The invention relates to a double-effect organic macromolecular compound and a preparation method thereof. The preparation method includes: adding Mannich base, deionized water, an initiator and a chelating agent into a reaction container, and introducing N2 to expel oxygen, then adding p-acrylamide sodium benzoate, carrying out condensation reflux reaction at 50DEG C-80 DEG C for 4h-8h, and conducting reduced pressure distillation to remove solvent water, thus obtaining light red polymer powder, i.e. the double-effect organic macromolecular compound. According to the invention, two monomers are prepared through Mannich reaction and acyl chloride aminolysis reaction, and then a double-effect organic macromolecule is prepared by means of aqueous solution free radical polymerization, wherein N and O heteroatoms contained in the molecular structure of the monomer Mannich base can combine with Fe atoms on the metal surface to cover an equipment surface in the form of an adsorption film, thus reaching a corrosion inhibiting effect. At the same time, the Mannich base molecular structure contains polar groups capable of adsorbing suspended matters and the like in wastewater, thus having certain flocculation effect. The method provided by the invention has the advantages of simple and mild synthesis condition, small dosage, and good corrosion inhibition and oil removing effects, etc.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and relates to an oilfield wastewater treatment agent, in particular to a double-effect organic polymer compound and a preparation method thereof. Background technique [0002] With the development of industry and the depletion of oil resources, most of my country's oil fields have entered the "tertiary recovery" period. Tertiary oil recovery technology is widely used. This process will generate a lot of wastewater, including oilfield produced water and drilling wastewater. The composition is quite complex. , such as containing a variety of organic matter, inorganic matter, chemical additives, and acids injected into the formation, and has the characteristics of high oil content, high salinity, and easy corrosion. With the increase of the comprehensive water content of oil, the discharge of oilfield wastewater is also increasing year by year, which not only seriously damages equipment, corrodes steel...

Claims

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Application Information

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IPC IPC(8): C08F220/36C08F220/58C07C231/02C07C233/49C07C227/10C07C229/12C02F1/40C02F1/28B01J20/26B01J20/30
CPCB01J20/26C02F1/285C02F1/40C07C67/14C07C227/10C07C231/02C08F220/36C08F220/58C07C233/49C07C69/54C07C229/12C23F11/145
Inventor 郭睿甄建斌郭煜王映月马兰宋博李云鹏土瑞香
Owner SHAANXI UNIV OF SCI & TECH
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