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A visible light photoreactor dedicated to cationic polyacrylamide polymerization and its application method

A technology of polyacrylamide and photoreactor, applied in chemical instruments and methods, chemical/physical/physicochemical processes of energy application, chemical/physical/physicochemical processes, etc., can solve the problem of ozone generation and functional monomer destruction , impact on the environment and health, and achieve the effects of energy saving, easy operation, and high salt tolerance

Active Publication Date: 2020-05-29
义乌市鹏之友新材料研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, if the usual ultraviolet light polymerization technology is used, ozone will be generated, which will affect the environment and health, and will also cause damage to functional monomers during the polymerization process. Therefore, the use of visible light polymerization technology is a possible way to solve the problem

Method used

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  • A visible light photoreactor dedicated to cationic polyacrylamide polymerization and its application method
  • A visible light photoreactor dedicated to cationic polyacrylamide polymerization and its application method
  • A visible light photoreactor dedicated to cationic polyacrylamide polymerization and its application method

Examples

Experimental program
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Effect test

Embodiment 1

[0074] like figure 1 , 2 As shown, a visible light photoreactor dedicated to the polymerization of cationic polyacrylamide includes two transparent plates 1 (optical glass plates) located on the front and rear sides, two side plates 2 on the left and right sides, and a bottom plate A bottom plate 3 and a cover plate 4 on top. Wherein, the two side plates are arranged in parallel, and the upper ends and the lower ends of the two transparent plates are respectively parallel. The side panel, the transparent panel, the bottom panel and the cover panel form a box-shaped closed space, and the cover panel is detachable.

[0075] The inner surface of the transparent plate is provided with a transparent hydrophobic film 5 (hydrophobic polyolefin); the material of the side plate, the base plate and the cover plate is a hydrophobic polyolefin; the base plate is provided with a nitrogen inlet 6; the cover plate is provided with a nitrogen outlet 7. The distance between the upper ends o...

Embodiment 2

[0080] A visible light photoreactor dedicated to the polymerization of cationic polyacrylamide, including two transparent plates (optical glass plates) on the front and rear sides, two side plates on the left and right sides, a bottom plate on the bottom and a A piece of cover on top. Wherein, the two side plates are arranged in parallel, and the upper ends and the lower ends of the two transparent plates are respectively parallel. The side panel, the transparent panel, the bottom panel and the cover panel form a box-shaped closed space, and the cover panel is detachable.

[0081] The inner surface of the transparent plate is provided with a transparent hydrophobic film (hydrophobic polyester); the material of the side plate, the bottom plate and the cover plate is hydrophobic polyester; the bottom plate is provided with a nitrogen inlet; the cover plate is provided with a nitrogen outlet; The distance between the upper ends of the transparent boards is greater than the dista...

Embodiment 3

[0086] A visible light photoreactor dedicated to the polymerization of cationic polyacrylamide, including two transparent plates (optical glass plates) on the front and rear sides, two side plates on the left and right sides, a bottom plate on the bottom and a A piece of cover on top. Wherein, the two side plates are arranged in parallel, and the upper ends and the lower ends of the two transparent plates are respectively parallel. The side panel, the transparent panel, the bottom panel and the cover panel form a box-shaped closed space, and the cover panel is detachable.

[0087] The inner surface of the transparent plate is provided with a transparent hydrophobic film (hydrophobic polyolefin); the inner surface of the side plate, bottom plate, and cover plate is provided with a hydrophobic polyolefin film; the bottom plate is provided with a nitrogen inlet; the cover plate is provided with a nitrogen gas Exit; the distance between the upper ends of the two transparent plate...

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Abstract

The invention relates to the field of organic synthesizing equipment and discloses a visible-light photoreactor specially applied to cationic polyacrylamide polymerization and an application method thereof. The photoreactor comprises two pieces of transparent plates, two pieces lateral plates, a bottom plate and a cover plate, wherein the transparent plates are respectively arranged on the front side and the rear side, the lateral plates are respectively arranged on the left side and the right side, the bottom plate is arranged at the bottom, and the cover plate is arranged at the top; the lateral plates, the transparent plates, the bottom plate and the cover plate can enclose a sealed space; a transparent hydrophobic membrane is arranged on the surface of the inner side of each transparent plate; the inner sides of the lateral plates, the bottom plate and the cover plate are hydrophobic surfaces; a nitrogen inlet is arranged on the bottom plate; a nitrogen outlet is arranged on the cover plate; the distance between the upper ends of the two transparent plates is larger than the distance between the lower ends of the two transparent plates. The photoreactor disclosed by the invention is specially designed for cationic polyacrylamide and has the advantages of convenience in operation and easiness in discharging; furthermore, the photoreactor has easiness in heat exchange; compared with a large reaction kettle, a temperature rise range is smaller, and material property uniformity is high.

Description

technical field [0001] The invention relates to the field of organic synthesis equipment, in particular to a visible light photoreactor specially used for cationic polyacrylamide polymerization and an application method thereof. Background technique [0002] Sewage from the printing and dyeing industry is relatively difficult to treat. It has a long treatment cycle, high cost, large amount of sludge, and serious odor emissions during the treatment process. It is difficult for the wastewater after biochemical treatment to meet the discharge standards. The reason is that most of the dyes are toxic to microorganisms, and most of the microorganisms die in the process of dyeing and become sludge. So far, no effective solution has been found. Therefore, it is an important issue to develop new functional materials that can effectively remove dyes in printing and dyeing wastewater. [0003] Although cationic polyacrylamide is an efficient flocculant, the cationic polyacrylamide so ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/34C08F220/56C08F2/48C08F2/01B01J19/12B01J19/00C02F1/56C02F103/30
CPCB01J19/0013B01J19/0053B01J19/127C02F1/56C02F2103/30C08F2/01C08F2/48C08F220/34C08F220/56
Inventor 吴飞鹏黄武宁
Owner 义乌市鹏之友新材料研究所有限公司