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Hydroximated water-soluble polyelectrolyte inverse microemulsion and preparation process thereof

A reverse microemulsion, water-soluble polymer technology, applied in chemical instruments and methods, alumina/aluminum hydroxide, separation methods, etc., can solve the problem of easy clogging of transportation pipelines and filtration systems, reduction of effective active ingredients, reverse emulsion Low molecular weight and other problems, to achieve the effect of fast dissolution, lower liquid-solid ratio, and good freeze-thaw stability

Active Publication Date: 2010-01-27
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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] 1. Emulsion formula:

[0056] System Component Parts by weight (grams)

[0057] Aqueous phase Acrylamide 21.6

[0058] Acrylic 88

[0059] Sodium hydroxide 48.8

[0060] Deionized water 138.4

[0061] Sodium acetate 0.04

[0062] Sodium formate 0.04

[0063] Pentasodium diethyltriaminepentaacetate (pentasodium DTPA 0.192

[0064] Salt)

[0065] Sodium metabisulfite 0.2

[0066] 2,2'Azobis(2-aminopropane) hydrochloride 0.016

[0067] (VA-044)

[0068] Potassium bromate 0.04

[0069] Oil Phase White Oil 84.4

[0070] Sorbitan monooleate (span80) 5.48

[0071] Sorbitan Oleate Polyoxyethylene Ether 2.04

[0072] (Tween81)

[0073] Azobisisobutyronitrile (AIBN) 0.2

[0074] Hydroximation Hydroxylamine Hydrochloride 8

[0075] agent

[0076] Reversing agent Octylphenol polyoxyethylene ether (NP-10) 10

[0077] 2. Preparation...

Embodiment 2

[0083] 1. Emulsion formula:

[0084] System Component Parts by weight (grams)

[0085] Aqueous Phase: Acrylamide 18.8

[0086] Acrylic 78

[0087] Sodium hydroxide 43.2

[0088] Deionized water 157.6

[0089] Sodium acetate 0.0352

[0090] Sodium formate 0.0352

[0091] Pentasodium diethyltriaminepentaacetate (DTPA pentasodium salt) 0.168

[0092] Sodium metabisulfite 0.18

[0093] 2,2'Azobis(2-aminopropane) hydrochloride (VA-044) 0.014

[0094] Potassium bromate 0.0352

[0095] Oil phase: white oil 84.4

[0096] Sorbitan monooleate (span80) 5.48

[0097] Sorbitan Oleate Polyoxyethylene Ether (Tween81) 2.04

[0098]Azobisisobutyronitrile (AIBN) 0.18

[0099] Hydroximating agent: Hydroxylamine hydrochloride 7

[0100] Reversing agent: octylphenol polyoxyethylene ether (NP-10) 10

[0101] 2. Preparation process:

[0102] (1) Take 64.2 gram...

Embodiment 3

[0107] 1. Emulsion formula:

[0108] System Component Parts by weight (kg)

[0109] Aqueous phase Acrylamide 58.52

[0110] Acrylic 59.32

[0111] Sodium hydroxide 32.8

[0112] Deionized water 146.04

[0113] Sodium acetate 0.04

[0114] Sodium formate 0.04

[0115] Pentasodium diethyltriaminepentaacetate (DTPA five 0.192

[0116] sodium salt)

[0117] Sodium metabisulfite 0.2

[0118] 2,2'Azobis(2-aminopropane)hydrochloride 0.016

[0119] Salt (VA-044)

[0120] Potassium bromate 0.04

[0121] Oil Phase White Oil 84.4

[0122] Sorbitan monooleate (span80) 5.48

[0123] Sorbitan Oleate Polyoxyethylene Ether 2.04

[0124] (Tween81)

[0125] Azobisisobutyronitrile (AIBN) 0.2

[0126] Hydroximation Hydroxylamine Hydrochloride 20

[0127] agent

[0128] Reversing agent Octylphenol polyoxyethylene ether (NP-10) 10

[0129] 2. Preparation process:...

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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 Applications(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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