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Continuous production process and continuous production device of emulsion polymer and application thereof

A production process and production device technology, applied in the direction of feeding device, control/adjustment process, chemical/physical/physical chemical fixed reactor, etc., can solve the problems of poor stability and safety, poor product stability, fast reaction speed, etc. Problems, to achieve a balanced ratio, high mixing shear strength, and achieve the effect of safe production

Active Publication Date: 2020-09-25
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 process and continuous production device of emulsion polymer and application thereof
  • Continuous production process and continuous production device of emulsion polymer and application thereof
  • Continuous production process and continuous production device of emulsion polymer and application thereof

Examples

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no. 1 approach

[0063] This embodiment relates to a continuous production process for emulsion-type polymers, see figure 1 , including the following steps:

[0064] S1. Prepare water phase;

[0065] S2. Preparation of oil phase;

[0066] S3. The water phase and the oil phase are pumped into the static mixer, mixed into an emulsion, and the emulsion enters the manifold through the discharge port;

[0067] S4. Weigh the composite oxidant, and continuously pump the composite oxidant into the manifold 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 a metering pump;

[0070] S7. The emulsion, composite oxidant, and reducing agent are heated and polymerized in the tubular continuous reactor to form an emulsion polymer and output from the outlet of the tubular c...

no. 2 approach

[0075] This embodiment relates to a continuous production process for emulsion-type polymers, see figure 1 , including the following steps:

[0076] S1. Prepare the water phase, including the preparation of raw materials and the preparation method:

[0077] (1) prepare raw materials, including taking by weighing the components of the following parts by weight:

[0078] 150-300 parts of deionized water;

[0079] Acrylamide 90~150 copies;

[0080] 10-30 copies of functional monomers;

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

[0082] 25-40 parts of acrylic acid;

[0083] 40-64 parts of pH regulator;

[0084] Among them, 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] Wherein, the functional monomer is a mixture of one or more of glycidyl methacrylate, ethyl methacrylate, and tertiary ethylene carbonate; the pH adjuster is NaOH, NaHCO 3 , one or more of citric acid is mixed. ...

no. 3 approach

[0111] A continuous production process of emulsion-type polymer is implemented according to the following steps:

[0112] (1) Dissolve 150 parts of deionized water, 102 parts of acrylamide, 10 parts of functional monomers, 60 parts of N,N-methylenebisacrylamide, 30 parts of acrylic acid, and 48 parts of pH adjuster by weight to form an aqueous phase ,spare.

[0113] (2) 360 parts of 7# white oil, 8080 parts of sorbitan monooleate polyoxyethylene ether Tween, 120 parts of oily emulsifier, 40 parts of trimer monooleate are stirred uniformly by weight to form oil phase, for subsequent use .

[0114] (3) According to the mass ratio, 400 parts of the prepared water phase and 600 parts of the prepared oil phase are pumped into the online mixer in proportion with a metering pump for online emulsification to form a stable emulsion. 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 back end of t...

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Abstract

The invention provides a continuous production process and a continuous production device of an emulsion polymer and application of the continuous production process and the continuous production device. An emulsion is prepared firstly, then the emulsion and an oxidant are mixed and conveyed to a tubular continuous reactor, and simultaneously a reductant is separately input, so that early polymerization can be prevented. The tubular continuous reactor disclosed by the invention has stirring and back-mixing effects inside, and is suitable for a continuous production process of a high-viscosityemulsion system; according to the process, the emulsion is conveyed into the reactor from the bottom of the tubular continuous reactor through a pump, the composite oxidant is added to a feeding pipeline, the reductant is added to the bottom of the reactor, then a liquid is gradually pumped to the reactor pipeline and discharged out of the top of the reactor through the pump, early polymerizationis avoided, continuous polymerization is ensured, and the stability of products is improved.

Description

technical field [0001] The invention belongs to the field of emulsion polymerization, and in particular relates to a continuous production process and a continuous production device of an emulsion polymer and its application. Background technique [0002] With the continuous advancement of oilfield exploitation, emulsion polymers developed for fractured reservoirs have the characteristics of being able to block, inject and move. That is, the water phase and the oil phase are first emulsified, and then an initiator is added to carry out single-pot polymerization under stirring, but the process has the following shortcomings: [0003] (1) When the oxidant is added to the aqueous solution, it is prone to self-polymerization, resulting in poor stability and safety. [0004] (2) The reducing agent is put into one-time, the reaction speed is fast, the temperature is difficult to control, and the product stability is poor. SUMMARY OF THE INVENTION [0005] The purpose of the em...

Claims

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Application Information

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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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