Amphiphilic allyl polymer for sewage treatment demulsifier and preparation method thereof

An allyl-based, sewage treatment technology, applied in separation methods, chemical instruments and methods, grease/oily substances/suspton removal devices, etc., can solve problems such as product quality decline, achieve low demulsification temperature, and environmental protection The meaning, the effect of the simple and convenient preparation method

Inactive Publication Date: 2020-09-18
SHANDONG DONGYUE WEILAI HYDROGEN ENERGY MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existence of hydroxyl groups, uncapped alkenyl polyethers inevitably generate Si-O-C bonds, and easily cause crosslinking in the copolymer, resulting in a decrease in product quality.

Method used

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  • Amphiphilic allyl polymer for sewage treatment demulsifier and preparation method thereof
  • Amphiphilic allyl polymer for sewage treatment demulsifier and preparation method thereof
  • Amphiphilic allyl polymer for sewage treatment demulsifier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Add potassium propylene alcoholate into a 3L stainless steel reaction kettle. After the oxygen content is replaced by nitrogen, suck allyl alcohol with a straw, start stirring, and the temperature is 30°C; heat up and dehydrate for half an hour, and the temperature is 35°C; use a slow speed at 35°C Add PO and EO, gradually raise the temperature to keep the polymerization reaction temperature at 90°C; then react with internal pressure for half an hour, the temperature is 90°C; cool down to 50°C, take a sample for inspection; refine after passing the test, add an adsorbent for post-treatment, and obtain a molecular weight of 500g / mol Propylene Glycol Ether.

[0045] (2) Add the calculated amount of propenol ether and sodium methoxide solution into the rotary thin film evaporator, and control the reaction temperature at 100±3°C. Vacuumize to remove the methanol in the sodium methoxide solution and the methanol generated in the alcohol exchange reaction. The demethanoli...

Embodiment 2

[0050] (1) Add potassium propylene alcoholate into a 3L stainless steel reaction kettle. After the oxygen content is replaced by nitrogen, suck allyl alcohol with a straw, start stirring, and the temperature is 30°C; heat up and dehydrate for half an hour, and the temperature is 35°C; use a slow speed at 35°C Add PO and EO, gradually raise the temperature to keep the polymerization reaction temperature at 90°C; then react with internal pressure for half an hour, the temperature is 90°C; cool down to 50°C, take a sample for inspection; refine after passing the test, add an adsorbent for post-treatment, and obtain a molecular weight of 500g / mol Propylene Glycol Ether.

[0051] (2) Add the calculated amount of propenol ether and sodium methoxide solution into the rotary thin film evaporator, and control the reaction temperature at 100±3°C. Vacuumize to remove the methanol in the sodium methoxide solution and the methanol generated in the alcohol exchange reaction. The demethanoli...

Embodiment 3

[0056] (1) Add sodium allyl alcohol into a 3L stainless steel reaction kettle. After the oxygen content is replaced by nitrogen, suck allyl alcohol with a straw, start stirring, and the temperature is 28°C; heat up and dehydrate for half an hour, and the temperature is 38°C; use a slow speed at 38°C Add PO and EO, gradually raise the temperature to keep the polymerization reaction temperature at 93°C; then react under internal pressure for half an hour, the temperature is 93°C; cool down to 50°C, take a sample for inspection; refine after passing the test, add an adsorbent for post-treatment, and obtain a molecular weight of 550g / mol Propylene Glycol Ether.

[0057] (2) Add the calculated amount of propenol ether and sodium methoxide solution into the rotary thin film evaporator, and control the reaction temperature at 110±3°C. Vacuumize to remove the methanol in the sodium methoxide solution and the methanol generated in the alcohol exchange reaction. The demethanolization te...

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PUM

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Abstract

The invention relates to an amphiphilic allyl polymer for a sewage treatment demulsifier and a preparation method thereof, and belongs to the technical field of polymer synthesis industrial sewage treatment. The amphiphilic allyl polymer is obtained by carrying out a polymerization reaction on diallyl-terminated polyether and one or more of low-hydrogen silicone oil, acrylamide (AM), acrylic acid(AA) and chloropropene. The amphiphilic allyl polymer for a sewage treatment demulsifier has the characteristics of strong demulsifying capacity, high demulsifying speed, low dosage, low demulsifyingtemperature and particular suitability for thick oil emulsion; and meanwhile, the invention provides a simple and convenient preparation method.

Description

technical field [0001] The invention relates to an amphiphilic allyl polymer used as a demulsifier for sewage treatment and a preparation method thereof, belonging to the technical field of polymer synthesis industrial sewage treatment. Background technique [0002] Common sewage treatment agents include inorganic settling agents such as aluminum salts, iron salts, and alum, and polymer flocculants such as cationic, anionic, nonionic, zwitterionic polyacrylamide, and polyaluminum chloride, which can be used in different purposes. It is used as a sewage treatment agent. At present, there are few studies on the use of amphiphilic allyl polymers as demulsifiers in the field of sewage treatment. Inorganic settling agents such as aluminum salts, iron salts, and alum can be used for preliminary water purification with relatively simple pollution causes. Polymer flocculants are more effective than inorganic settling agents in the field of organic industrial sewage treatment. The c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/46C08F283/06C08F220/56C08F220/06C08F214/14C08G65/337C08G65/28B01D17/05C02F1/40
CPCB01D17/047C02F1/40C08F283/065C08G65/2609C08G65/337C08G77/46C08F220/56C08F220/06C08F214/14
Inventor 孙苗张帅王凯李景通张永明
Owner SHANDONG DONGYUE WEILAI HYDROGEN ENERGY MATERIAL CO LTD
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