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JPS55165117A - Production of ultrafiltration membrane for treatment of pulp waste liquid - Google Patents

Production of ultrafiltration membrane for treatment of pulp waste liquid

Info

Publication number
JPS55165117A
JPS55165117A JP7115279A JP7115279A JPS55165117A JP S55165117 A JPS55165117 A JP S55165117A JP 7115279 A JP7115279 A JP 7115279A JP 7115279 A JP7115279 A JP 7115279A JP S55165117 A JPS55165117 A JP S55165117A
Authority
JP
Japan
Prior art keywords
ultrafiltration membrane
pyrolidone
dioxane
methyl
treatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7115279A
Other languages
Japanese (ja)
Other versions
JPS5635495B2 (en
Inventor
Noboru Takeshita
Osamu Inada
Toshimasa Norita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Kokusaku Pulp Co Ltd
Original Assignee
Sanyo Kokusaku Pulp Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Kokusaku Pulp Co Ltd filed Critical Sanyo Kokusaku Pulp Co Ltd
Priority to JP7115279A priority Critical patent/JPS55165117A/en
Publication of JPS55165117A publication Critical patent/JPS55165117A/en
Publication of JPS5635495B2 publication Critical patent/JPS5635495B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE: To produce the captioned membrane which has a dense skin layer and a sponge layer of large opening degrees by dissolving polysulfone resin into the mixed solvent of N-methyl-2-pyrolidone and dioxane and forming the films by a wet system.
CONSTITUTION: The production of the ultrafiltration membrane having the dense skin layer and sponge layer of large opening degrees becomes possible only when polysulfone resin is dissolved in the mixed solvent of N-methyl-2-pyrolidone being a good solvent and dioxane being a solvent of about medium degree and the solution is filmed. At this time the suitable mixing ratios of N-methyl-2-pyrolidone and dioxane are a range of about 80:20W about 60:40. This ultrafiltration membrane exhibits superior performance as the membrane for treatment of pulp waste liquid.
COPYRIGHT: (C)1980,JPO&Japio
JP7115279A 1979-06-08 1979-06-08 Production of ultrafiltration membrane for treatment of pulp waste liquid Granted JPS55165117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7115279A JPS55165117A (en) 1979-06-08 1979-06-08 Production of ultrafiltration membrane for treatment of pulp waste liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7115279A JPS55165117A (en) 1979-06-08 1979-06-08 Production of ultrafiltration membrane for treatment of pulp waste liquid

Publications (2)

Publication Number Publication Date
JPS55165117A true JPS55165117A (en) 1980-12-23
JPS5635495B2 JPS5635495B2 (en) 1981-08-18

Family

ID=13452340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7115279A Granted JPS55165117A (en) 1979-06-08 1979-06-08 Production of ultrafiltration membrane for treatment of pulp waste liquid

Country Status (1)

Country Link
JP (1) JPS55165117A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5995904A (en) * 1982-11-24 1984-06-02 Daicel Chem Ind Ltd Production of semipermeable membrane of polysulfone resin

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947591U (en) * 1982-09-24 1984-03-29 スズキ株式会社 Scooter brake pedal device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5995904A (en) * 1982-11-24 1984-06-02 Daicel Chem Ind Ltd Production of semipermeable membrane of polysulfone resin

Also Published As

Publication number Publication date
JPS5635495B2 (en) 1981-08-18

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