Check patentability & draft patents in minutes with Patsnap Eureka AI!

Preparation method of cationic inverse emulsion based on high-activity emulsifier

A technology of inverse emulsion and emulsifier, which is applied in the field of cationic polyacrylamide inverse emulsion, which can solve the problems of low stability of inverse emulsion and easy separation after a long time

Active Publication Date: 2020-10-30
SNF CHINA FLOCCULANT
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention: Aiming at the problems of low stability of the inverse emulsion and easy stratification after a long time, a method with high industrial practicability and

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of cationic inverse emulsion based on high-activity emulsifier
  • Preparation method of cationic inverse emulsion based on high-activity emulsifier
  • Preparation method of cationic inverse emulsion based on high-activity emulsifier

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043] Embodiment one

[0044] A kind of cationic inverse emulsion preparation based on highly active emulsifier comprises the following steps:

[0045] a. Preparation of highly active emulsifier:

[0046] 1) Add 48 parts of cationic monomer acryloyloxyethyl dimethyl benzyl ammonium chloride (DABC), 50 parts of deionized water, 0.05 parts of chain transfer agent sodium hypophosphite, chelating agent "V-80" 0.20 parts, 0.10 parts of water-soluble oxidant tert-butyl hydroperoxide, 0.3 parts of azo-based initiator azobisisobutyronitrile (AIBN), mixed directly in the reaction vessel, and adjusted to pH = 5.0 after mixing;

[0047] 2) Infuse nitrogen gas for 30 minutes, add 0.1 part of water-soluble reducing agent sodium metabisulfite (MBS), the solution starts to react, react for 4-8 hours, and the reaction ends;

[0048] 3) After the reaction, the colloid is crushed, dried at high temperature, and then crushed and sieved to obtain a powdery high-activity emulsifier with a visco...

Example Embodiment

[0054] Embodiment two

[0055] A kind of cationic inverse emulsion preparation based on highly active emulsifier comprises the following steps:

[0056] a. Preparation of highly active emulsifier:

[0057] 1) Add 48 parts of cationic monomer dimethylbenzyl-2-ethylaminomethacrylate chloride (Madquat BZ), 50 parts of deionized water, 0.05 parts of chain transfer agent sodium hypophosphite, chelating agent 0.20 parts of "V-80", 0.009 parts of water-soluble oxidant tert-butyl hydroperoxide, 0.3 parts of azo-based initiator azobisisobutyronitrile (AIBN), mixed directly in the reaction vessel, and adjusted to pH = 5.0 after mixing ;

[0058] 2) Infuse nitrogen gas for 30 minutes, add 0.1 part of water-soluble reducing agent sodium metabisulfite (MBS), the solution starts to react, react for 4 hours, and the reaction ends;

[0059] 3) After the reaction, the colloid was crushed, dried at high temperature, and then crushed and sieved to obtain a powdery high-activity emulsifier wit...

Example Embodiment

[0065] Embodiment Three

[0066] A kind of cationic inverse emulsion preparation based on highly active emulsifier comprises the following steps:

[0067] a. Preparation of highly active emulsifier:

[0068] 1) Add 24 parts of cationic monomer dimethylbenzyl-2-ethylaminomethacrylate chloride (Madquat BZ), 24 parts of acryloyloxyethyl dimethyl benzyl ammonium chloride (DABC), remove 50 parts of ionized water, 0.05 parts of chain transfer agent sodium formate, 0.20 parts of chelating agent "V-80", 0.010 parts of water-soluble oxidant tert-butyl hydroperoxide, 0.3 parts of azo-type initiator azobisisobutyronitrile (AIBN) , mixed directly in the reaction vessel, and adjusted to pH = 4.0 after mixing;

[0069] 2) Infuse nitrogen gas for 30 minutes, add 0.1 part of water-soluble reducing agent molar salt, the solution starts to react, react for 4-8 hours, and the reaction ends;

[0070] 3) After the reaction, the colloid is crushed, dried at high temperature, and then crushed and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a cationic inverse emulsion based on a high-activity emulsifier, which is prepared by the following steps of: directly and uniformly mixing acrylamide, a cationic monomer, deionized water, a high-activity emulsifier, a chain transfer agent, a chain extender, a chelating agent and a water-soluble oxidant in parts by mass in a beaker; stirring and mixing solvent oil and a nonionic emulsifier in a reaction container; pouring the liquid phase solution into the oil phase, and stirring and mixing the liquid phase solution and the oil phase in a reaction container; and afterthe emulsification reaction is finished, carrying out nitrogen blowing and deoxygenization on the reactor, then adding a water-soluble reducing agent solution into the reactor to start polymerizationreaction, keeping normal stirring during the period, and obtaining the cationic inverse emulsion with the solid content ranging from 30% to 45% after the reaction is finished. The industrial preparation process is simple, that is, the high-activity amphiphilic cationic polymer is introduced into an inverse emulsion system as an emulsifier, and the stability of the emulsion can be remarkably improved.

Description

technical field [0001] The present invention relates to the preparation of cationic polyacrylamide inverse emulsion with high molecular weight by using highly active emulsifier. The invention also relates to the fields of oil exploration, gas and oil extraction, paper making, water treatment or agricultural technology. Background technique [0002] Polyacrylamide (PAM) can be divided into non-ionic, cationic, anionic and amphoteric polyacrylamide according to whether its polymer molecular chain is charged or not. Acrylamide (AM) has high chemical activity and good water solubility, so the synthesized cationic polyacrylamide (CPAM) has a variety of active groups, which can form hydrogen bonds with many substances, and are widely used It is used in many fields such as sewage treatment, oil extraction, cosmetic thickening and papermaking, and enjoys the reputation of "auxiliaries for all industries" and has high commercial value. [0003] The preparation of cationic polyacryl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08F220/56C08F220/34C08F2/32C08F120/34
CPCC08F220/56C08F2/32C08F120/34C08F220/34C08F222/385
Inventor 徐溪凌静常城金龙哲
Owner SNF CHINA FLOCCULANT
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com