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Hydroximated water-soluble polyelectrolyte inverse microemulsion and preparation process thereof

An inverse microemulsion, water-soluble polymer technology, applied in chemical instruments and methods, alumina/aluminum hydroxide, separation methods, etc. Reduce the composition and other problems, to achieve the effect of fast dissolution, good freeze-thaw stability, and lower liquid-solid ratio

Active Publication Date: 2012-05-02
格润化学(东营)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hydrosol or dry powder precipitant, strong hygroscopicity, easy to reduce the effective active ingredients, poor solubility, easy to produce insoluble matter during the dissolution process, easy to block the delivery pipeline and filtration system, affecting the entire production process, especially in cold regions serious
Low-concentration inverse emulsion has the disadvantages of low molecular weight, poor stability and unsatisfactory application effect

Method used

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  • Hydroximated water-soluble polyelectrolyte inverse microemulsion and preparation process thereof
  • Hydroximated water-soluble polyelectrolyte inverse microemulsion and preparation process thereof
  • Hydroximated water-soluble polyelectrolyte inverse microemulsion and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Emulsion formula:

[0024]

[0025] 2. Preparation process:

[0026] (1) Get 73.2 grams of water successively and sodium hydroxide is made into a 40% solution by mass percentage for stand-by; Get 9.8 grams of water and sodium metabisulfite is made into a 2% solution by mass percentage for stand-by; Get 8 grams of water and make azobis Isopropyl imidazoline hydrochloride (VA-044) was made into a 0.2% solution by mass percentage for use; 10 grams of water was made into a 0.4% solution by mass percentage with potassium bromate for use;

[0027] (2) Add the remaining 37.4 deionized water into the polymerization reactor, and add the measured acrylamide (AM) and acrylic acid (AA) successively under the stirring state with a rotation speed of 200 rpm, until they are completely dissolved. Cool the monomer mixture to below 15°C, slowly add dissolved sodium hydroxide solution, and control the solution temperature at 17-20°C. After adding the sodium hydroxide solution, add...

Embodiment 2

[0031] 1. Emulsion formula:

[0032]

[0033]

[0034] 2. Preparation process:

[0035] (1) get 64.2 grams of water successively and sodium hydroxide is made into the solution of 40% by mass percent for stand-by; Get the water of 8.82 grams and sodium pyrosulfite is made into the solution of 2% by mass percent for stand-by; Get 7 grams of water and make the solution of even Nitrogen diisopropyl imidazoline hydrochloride (VA-044) is made into a solution of 0.2% by mass percent for stand-by; 8.8 grams of water is made into a solution of 0.4% by mass percent of potassium bromate for stand-by;

[0036] (2) Add the remaining 68.18 g of deionized water into the polymerization reactor, and add in the measured acrylamide (AM) and acrylic acid (AA) in sequence at a stirring speed of 200 rpm until they are completely dissolved. Cool the body mixture to below 15°C, slowly add the dissolved sodium hydroxide solution, and control the solution temperature at 17-20°C. After adding th...

Embodiment 3

[0040] 1. Emulsion formula:

[0041]

[0042]

[0043] 2. Preparation process:

[0044] (1) get 49.2 kilograms of water successively and sodium hydroxide is made into the solution of 40% by mass percentage for stand-by; Get 9.8 kilograms of water and sodium metabisulfite is made into the solution of 2% by mass percent for stand-by; Get 8 kilograms of water and make the solution of even Nitrogen diisopropyl imidazoline hydrochloride (VA-044) is made into a solution of 0.2% by mass percent for stand-by; 10 kilograms of water is made into a solution of 0.4% by mass percent of potassium bromate for stand-by;

[0045] (2) Add the remaining 69.04 kg of deionized water into the polymerization reactor (glass-lined or stainless steel), and add the measured acrylamide (AM) and acrylic acid (AA) in turn under the stirring state at a speed of 60 rpm. , until completely dissolved, the temperature of the monomer mixture is lowered to below 15°C, and the dissolved sodium hydroxide sol...

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Abstract

A hydroximated water-soluble polyelectrolyte inverse microemulsion and a preparation process thereof are disclosed, wherein, the emulsion comprises: water phase, oil phase, a hydroximating agent and an inverse agent; the process comprises: formulating sodium hydroxide, pyrosulfite, VA-044 and potassium bromate into solution with deionized water; adding deionized water into a reaction kettle and then sequentially adding acrylamide and acrylic acid; lowering the temperature after dissolution and adding sodium hydroxide solution to control the temperature, adding sodium acetate, sodium formate and diethylene triaminepentaacetic acid pentasodium salt to formulate into the water phase, feeding in high-purity nitrogen to drive away oxygen; adding white oil, span80, Tween81 into a dissolving tank to formulate into the oil phase, feeding in pure nitrogen to drive away oxygen; adding the oil phase into the water phase, adding AIBN and VA-044 after nitrogen is filled up to drive away oxygen, adding sodium pyrosulfite solution for three times with every 40 minutes once in order to control the temperature, then heating up for reaction; heating up once again, adding hydroxylamine hydrochloride for reaction, and dropping the temperature; then adding NP-10 to prepare the target substance for being discharged.

Description

1. Technical field [0001] The invention relates to a preparation process of new organic macromolecular chemical materials, in particular to a hydroximated water-soluble polyelectrolyte inverse microemulsion and a preparation process. 2. Background technology [0002] In the alumina production process, in the alumina production process of processing diaspore, gibbsite or mixed bauxite by Bayer method, sintering method or combined method, the red mud slurry after dissolution is a kind of A dispersed system composed of sodium aluminate solution and red mud particles of different sizes, that is, red mud suspension. The suspension can only be separated by sedimentation and filtered by a leaf filter to obtain a sodium aluminate solution that meets the decomposition conditions, and finally decomposes to a higher-quality aluminum hydroxide product. The effect of sedimentation and separation directly affects the normal operation of the whole system. Often because the red mud suspen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D21/01C01F7/02
Inventor 孙希明延军刘照东王伟鲁永吉王杰
Owner 格润化学(东营)有限公司
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