Filter medium, method for producing filter medium, water treatment module, and water treatment device

A filter material and substrate technology, applied in water/sludge/sewage treatment, separation methods, fiber treatment, etc., can solve problems such as insufficient anti-pollution, difficult adhesion of oil, and reduced flow

Active Publication Date: 2017-05-10
MITSUBISHI MATERIALS CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, there is a problem that even according to the above-mentioned well-known technology, the improvement of the anti-fouling property is sometimes insufficient, and when it is used for oil-water separation, the oil component is difficult to adhere to the membrane surface, and the flow rate is reduced. s reason

Method used

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  • Filter medium, method for producing filter medium, water treatment module, and water treatment device
  • Filter medium, method for producing filter medium, water treatment module, and water treatment device
  • Filter medium, method for producing filter medium, water treatment module, and water treatment device

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Embodiment

[1037] Hereinafter, the effects of the present invention will be further described in detail through examples. In addition, this invention is not limited to an Example.

[1038] [Synthesis of Nitrogen-Containing Fluorine Compounds]

Synthetic example 1

[1040] "Synthesis of 2-[3-[[perfluoro(2-methyl-3-dibutylaminopropionyl)]amino]propyl-dimethyl-ammonium]acetate"

[1041] 120 g of perfluoro(2-methyl-3-dibutylaminopropionyl) fluoride obtained by the electrolytic fluorination of methyl 2-methyl-3-dibutylaminopropionate was added dropwise to 39 g of dimethylaminopropylamine was dissolved in a solution of 500 ml of IPE solvent. After stirring at room temperature for 2 hours, filter with NaHCO 3 The isopropyl ether (IPE) layer of the filtrate was washed with an aqueous solution and an aqueous NaCl solution, and washed with water after separating the layers. Then, IPE was removed by distillation, and 64 g (C 4 f 9 ) 2 NCF 2 CF(CF 3 )CONHC 3 h 6 N(CH 3 ) 2 (Yield 47%).

[1042] Next, the resulting 8g (C 4 f 9 ) 2 NCF 2 CF(CF 3 )CONHC 3 h 6 N(CH 3 ) 2 Reflux overnight with sodium monochloroacetate while stirring in ethanol, filter and concentrate to obtain 9 g of dimethyl betaine represented by the following formu...

Synthetic example 2

[1046] "Synthesis of 2-[3-[[perfluoro(3-dibutylaminopropionyl)]amino]propyl-dimethyl-ammonium]acetate"

[1047] 20 g of perfluoro(3-dibutylaminopropionyl) fluoride obtained by the electrolytic fluorination of methyl 3-dibutylaminopropionate was added dropwise to 4 g of dimethylaminopropylamine dissolved in 50 ml of A solution made of IPE solvent. After stirring at room temperature for 2 hours, filter with NaHCO 3 The IPE layer of the filtrate was washed with aqueous solution and NaCl aqueous solution, and washed with water after liquid separation. Then, as a result of IPE being removed by distillation, 14 g (C 4 f 9 ) 2 NC 2 f 4 CONHC 3 h 6 N(CH 3 ) 2 (Yield 60%).

[1048] Next, the obtained 3g (C 4 f 9 ) 2 NC 2 f 4 CONHC 3 h 6 N(CH 3 ) 2After refluxing with sodium monochloroacetate overnight while stirring in ethanol, 3 g of dimethyl betaine represented by formula (377) was obtained (yield 92%).

[1049] [chemical formula 383]

[1050]

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Abstract

This filter medium for separating a liquid containing water and oil and having a channel for the liquid also has a substrate constituting the channel, and one or more types of nitrogen-containing fluorine-based compounds present on the surface of at least part of the channel. The nitrogen-containing fluorine-based compounds contain, in a molecule thereof, an oil-repellency-imparting group, and one hydrophilicity-imparting group selected from the group consisting of an anionic group, a cationic group, and an amphoteric group.

Description

technical field [0001] The invention relates to a filter material, a manufacturing method of the filter material, a water treatment module and a water treatment device. [0002] This application claims to be based on July 30, 2014, patent application No. 2014-155553 and patent application No. 2014-155554 filed in Japan, patent application No. 2014-206782 filed in Japan on October 7, 2014, and 2015 May Priority of Patent Application No. 2015-104023 filed in Japan on March 21, and the contents thereof are incorporated herein. Background technique [0003] In the past, oil or lard and other fats and oils were mixed in the drainage of general household or commercial cooking places, buildings, etc., and the drainage from the pipes of sewage and waste liquid treatment facilities of public utility companies. gas etc. In addition, there are problems that the functions of public sewer facilities are significantly hindered, and oil lumps (white solids) from sewer facilities flow out...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D17/022C02F1/40C07C227/08C07C227/18C07C229/06C07C231/12C07C233/36C07C233/37C07C303/02C07C303/22C07C303/40C07C309/04C07C311/03C07C311/10
CPCC07C303/02C07C303/22C07C303/40C07C309/04C07C311/03C07C311/10C07C227/08C07C227/18C07C229/06C07C231/12C07C233/36C07C233/37B01D17/10D06M13/408D06M13/438D06M13/461B01D2239/0421B01D2239/086C02F1/40C09D7/63B01D17/045C02F2101/32C08K5/19C08K5/20C08K5/3415C08K5/3462C08K5/357C08K5/42C08K5/435C09D5/00C09D129/14C09D167/00C09D201/00
Inventor 藤田将人鱼谷正和腰山博史神谷武志本田常俊高野大辅
Owner MITSUBISHI MATERIALS CORP
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