Continuous Production Technology and Continuous Production Equipment of Emulsion Polymer and Its Application

A technology of production equipment and production process, which is applied in the field of emulsion polymerization, can solve the problems of poor stability and safety, poor product stability, fast reaction speed, etc., and achieve the effect of balanced proportion, high stirring shear strength and strong thrust

Active Publication Date: 2022-03-15
西安长庆化工集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The oxidant is added in the aqueous phase solution, which is prone to self-polymerization, resulting in poor stability and safety
[0004] (2) The reducing agent is put in at one time, the reaction speed is fast, the temperature is difficult to control, and the product stability is poor

Method used

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  • Continuous Production Technology and Continuous Production Equipment of Emulsion Polymer and Its Application
  • Continuous Production Technology and Continuous Production Equipment of Emulsion Polymer and Its Application
  • Continuous Production Technology and Continuous Production Equipment of Emulsion Polymer and Its Application

Examples

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Effect test

no. 1 approach

[0063] This embodiment relates to the continuous production process of emulsion polymer, see figure 1 , including the following steps:

[0064] S1. prepare the water phase;

[0065] S2. preparing the oil phase;

[0066] S3. Pump the water phase and the oil phase into the static mixer, mix to form an emulsion, and the emulsion enters the manifold through the discharge port;

[0067] S4. Weigh the compound oxidant, and continuously pump the compound oxidant into the header through the metering pump;

[0068] S5. After the emulsion and the composite oxidant are mixed in the manifold, they enter the tubular continuous reactor together;

[0069] S6. Weigh the reducing agent, and continuously pump the reducing agent to the tubular continuous reactor through the metering pump;

[0070] S7. Emulsion, composite oxidizing agent, and reducing agent are heated and polymerized in the tubular continuous reactor to form an emulsion polymer and output from the discharge port of the tubula...

no. 2 approach

[0075] This embodiment relates to the continuous production process of emulsion polymer, see figure 1 , including the following steps:

[0076] S1. Prepare the aqueous phase, specifically including the preparation of raw materials and preparation methods:

[0077] (1) Prepare the raw materials, including weighing the following components by weight:

[0078] 150-300 parts of deionized water;

[0079] 90-150 parts of acrylamide;

[0080] 10-30 parts of functional monomers;

[0081] 50-80 parts of N,N-methylenebisacrylamide;

[0082] 25-40 parts of acrylic acid;

[0083] 40-64 parts of pH regulator;

[0084] Wherein, the mass ratio of N,N-methylenebisacrylamide and acrylic acid is 2; the mass ratio of acrylic acid and pH regulator is 0.625;

[0085] Among them, the functional monomer is a mixture of one or more of glycidyl methacrylate, ethyl methacrylate, and vinyl tert-carbonate; the pH regulator is NaOH, NaHCO 3 , citric acid in one or more mixed form.

[0086] (2) Pr...

no. 3 approach

[0111] Implement a kind of emulsion type polymer continuous production process as follows:

[0112] (1) Dissolve 150 parts of deionized water, 102 parts of acrylamide, 10 parts of functional monomer, 60 parts of N, N-methylenebisacrylamide, 30 parts of acrylic acid, and 48 parts of pH regulator to form a water phase ,spare.

[0113] (2) Stir 360 parts of 7# white oil, 8080 parts of sorbitan monooleate polyoxyethylene ether Tween, 120 parts of oily emulsifier, and 40 parts of trimerized monooleate according to weight to form an oil phase and set aside .

[0114] (3) According to the mass ratio, pump 400 parts of the prepared water phase and 600 parts of the prepared oil phase into the online mixer in proportion with a metering pump for online emulsification to form a stable emulsion. Among them, the water phase flow rate is 20L / min, the oil phase flow rate is 30L / min, and the total emulsion flow rate is 50L / min.

[0115] (4) At the rear end of the mixer, the compound oxidant...

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Abstract

The invention provides a continuous production process and a continuous production device of emulsion type polymer and its application. The emulsion is prepared first, then the emulsion and the oxidant are mixed and transported to the tubular continuous reactor, and the reducing agent is separately input at the same time, which can prevent early polymerization. The invented tubular continuous reactor has internal stirring and back-mixing effects, and is suitable for the continuous production process of high-viscosity emulsion system. The process uses a pump to transport the emulsion from the bottom of the tubular continuous reactor to the reactor. The compound oxidant is added, the reducing agent is added at the bottom of the reactor, and then the liquid is gradually pumped to the reactor pipeline by the pump, and the material is discharged from the top of the reactor to avoid early polymerization, ensure the continuous polymerization, and improve the stability of the product.

Description

technical field [0001] The invention belongs to the field of emulsion polymerization, and in particular relates to a continuous production process, a continuous production device and applications of emulsion polymers. Background technique [0002] With the continuous advancement of oilfield exploitation, the emulsion polymers developed for fractured oil reservoirs have the characteristics of being pluggable, injectable, and mobile. At present, most of the emulsion polymers adopt the old-fashioned kettle polymerization process. That is, the water phase and the oil phase are first emulsified, and then the initiator is added to carry out single-pot polymerization under the action of stirring, but this process has the following disadvantages: [0003] (1) When the oxidizing agent is added in the aqueous phase solution, it is prone to self-polymerization, resulting in poor stability and safety. [0004] (2) The reducing agent is put in at one time, the reaction speed is fast and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/56C08F222/32C08F220/06C08F220/32C08F220/18C08F218/04C08F4/40B01J4/00B01J4/02B01J19/00B01J19/18
CPCC08F220/56C08F4/40B01J4/02B01J4/007B01J19/1812B01J19/0053B01J19/0066B01J19/0006B01J19/0013B01J2204/002B01J2219/00094B01J2219/00162C08F222/325C08F220/06C08F220/325C08F220/1802C08F218/04
Inventor 郝世英谢璇任永宏叶智周宝曾立详李爱辉李华翟大治李鹏候新强姜萍张艳胡鹏飞王录勤
Owner 西安长庆化工集团有限公司
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