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Preparation method of environment-friendly functional amphoteric polymeric flocculant

An amphoteric polymer and functional technology, applied in the field of water treatment, can solve the problems of difficult product degradation, narrow application range, and secondary pollution, and achieve good flocculation effect, low price, and no secondary pollution.

Inactive Publication Date: 2019-07-19
AQUA WORTH SUZHOU ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw materials of the product of this invention are all chemical products, the cost is high, and the product is not easy to degrade, which is easy to cause secondary pollution. The product is more suitable for oil field application, and the application range is narrow

Method used

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  • Preparation method of environment-friendly functional amphoteric polymeric flocculant

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preparation example Construction

[0051] A preparation method of an environmental-friendly functional amphoteric polymer flocculant, the preparation method comprising the following steps:

[0052] 1) Prepare materials: pulp powder, absolute ethanol, 30% sodium hydroxide solution, etherification agent, initiator, acrylamide, aldehydes, amines, distilled water according to the mass ratio 1: (1.15-1.75): (1.5- 2.5): (0.3-0.6): (0.12-0.18): (1.6-3.1): (0.9-1.5): (1.5-2.3): 100 for material preparation;

[0053] 2) Dispersion, alkalization, and etherification of pulp powder: mix pulp powder with absolute ethanol, mechanically stir, and ultrasonically stir to fully disperse pulp powder; add 30% sodium hydroxide solution, ultrasonically stir, and alkalize; add etherification Agent and distilled water, etherification reaction, obtain carboxylation product;

[0054] 3) Graft copolymerization reaction: heat up the carboxylated product obtained in 2), add an initiator and acrylamide, pass through nitrogen protection, ke...

Embodiment 1

[0070] An environmentally friendly functional amphoteric polymer flocculant, prepared by the following method:

[0071] Take 5g of pulp powder, put it into a four-necked flask, add 6ml of absolute ethanol, place it in a water bath with ultrasonic, turn on the mechanical stirring for 10 minutes, and the stirring speed is 250r / min; then stop the mechanical stirring, adjust the ultrasonic frequency to 30KHZ, power 450W, ultrasonic vibration for 30min to fully disperse the pulp powder; stop the vibration, raise the temperature to 40°C, add 10ml of 30% sodium hydroxide solution, ultrasonic vibration for 30min, frequency 25KHZ, power 425W, carry out alkalization treatment; stop vibration, add 2.1 g etherification agent and 10ml distilled water, mechanically stirred for 30min, stirring speed 250r / min; then stop mechanical stirring, adjust ultrasonic frequency to 25KHZ, power 425W, vibrate and stir for 1h, obtain carboxylated product after etherification reaction; stop vibrating, add 1...

Embodiment 2

[0074] An environmentally friendly functional amphoteric polymer flocculant, prepared by the following method:

[0075] Take 5g of pulp powder, put it into a four-neck flask, add 6ml of absolute ethanol, place it in a water bath with ultrasonic, turn on the mechanical stirring for 5 minutes, and the stirring speed is 250r / min; then stop the mechanical stirring, adjust the ultrasonic frequency to 35KHZ, power 480W, ultrasonic vibration for 35min to fully disperse the pulp powder; stop the vibration, raise the temperature to 40°C, add 10ml of 30% sodium hydroxide solution, ultrasonic vibration for 35min, frequency 30KHZ, power 450W, carry out alkalization treatment; stop vibration, add 2.0 g etherification agent and 10ml distilled water, mechanically stirred for 20min, stirring speed 250r / min; then stop mechanical stirring, adjust ultrasonic frequency 30KHZ, power 450W, vibrate and stir for 1h, after etherification reaction, carboxylated product is obtained; stop vibrating, add 1...

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Abstract

The invention discloses a preparation method of an environment-friendly functional amphoteric polymeric flocculant. The preparation method comprises the following steps: 1) preparing materials; 2) dispersing paper pulp powder, and conducting mechanical stirring, ultrasonical stirring, alkalizing and etherifying; 3) carrying out graft copolymerization reaction; and 4) carrying out Mannich reactionand the like. The environment-friendly functional amphoteric polymeric flocculant prepared by the preparation method disclosed by the invention has both cationic and anionic groups, thus cations and anions can be treated at the same time, the flocculation and adsorption functions are also realized, and the capacity of adsorbing monovalent ions is strong; compared with a cationic flocculant or anionic flocculant only carrying one charge group, the flocculant provided by the invention has special performance advantages, a wide application range, low cost and price, strong monovalent ion adsorption capability, and can meet the requirements of treating various types of wastewater. The flocculant of the invention has a wide application range and wide market prospect when used for treating wastewater.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a preparation method of an environmental-friendly functional amphoteric polymer flocculant. Background technique [0002] Amphoteric polymer flocculants refer to polyelectrolyte products that contain both anionic groups and cationic groups on the same polymer chain link. Compared with water-soluble anionic or cationic polymers containing only one kind of charge, its performance is more unique. It has both the characteristics of a single anionic flocculant and the characteristics of a cationic flocculant. Due to the combination of anionic and cationic groups It has a wide range of applications, and can be used in both acidic and alkaline media, and under different media conditions, the types of ions it carries may be different, and it is suitable for treating pollutants with different charges. If flexible anionic groups and cationic groups can be connected to the molecula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56C02F1/28C08F251/00C08F220/56C08F8/32C08F8/28
CPCC02F1/56C02F1/286C02F1/285C08F251/00C08F8/32C08F8/28C02F2101/12C02F2101/14C02F2103/30C02F2103/28C02F2103/34C08F220/56
Inventor 李升军楚飞虎李广鹏吴小松
Owner AQUA WORTH SUZHOU ENVIRONMENTAL PROTECTION
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