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JPS5382670A - Preparation of semipermeable membrane - Google Patents

Preparation of semipermeable membrane

Info

Publication number
JPS5382670A
JPS5382670A JP15823476A JP15823476A JPS5382670A JP S5382670 A JPS5382670 A JP S5382670A JP 15823476 A JP15823476 A JP 15823476A JP 15823476 A JP15823476 A JP 15823476A JP S5382670 A JPS5382670 A JP S5382670A
Authority
JP
Japan
Prior art keywords
semipermeable membrane
preparation
condition
membrane
eveporation
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.)
Pending
Application number
JP15823476A
Other languages
Japanese (ja)
Inventor
Eiji Kuzumoto
Hiroshi Matsumoto
Tetsuo Ukai
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.)
Toyobo Co Ltd
Original Assignee
Toyobo 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP15823476A priority Critical patent/JPS5382670A/en
Publication of JPS5382670A publication Critical patent/JPS5382670A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/08—Polysaccharides
    • B01D71/12—Cellulose derivatives
    • B01D71/14—Esters of organic acids
    • B01D71/16—Cellulose acetate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To easily control the condition of membrane manufacturing, to enable to set up in wide condition range, to make removing rate of salt high even eveporation time is prolonged and to obtain high water permeable semipermeable membrane, by flowing or extruding cellulose ester solution, dissolved in specific two kinds of mixed solvents.
JP15823476A 1976-12-29 1976-12-29 Preparation of semipermeable membrane Pending JPS5382670A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15823476A JPS5382670A (en) 1976-12-29 1976-12-29 Preparation of semipermeable membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15823476A JPS5382670A (en) 1976-12-29 1976-12-29 Preparation of semipermeable membrane

Publications (1)

Publication Number Publication Date
JPS5382670A true JPS5382670A (en) 1978-07-21

Family

ID=15667198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15823476A Pending JPS5382670A (en) 1976-12-29 1976-12-29 Preparation of semipermeable membrane

Country Status (1)

Country Link
JP (1) JPS5382670A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57119809A (en) * 1981-01-19 1982-07-26 Daicel Chem Ind Ltd Production of ultrafiltration membrane
US4541972A (en) * 1983-12-14 1985-09-17 Exxon Research And Engineering Co. Preparation of cellulose acetate membrane and its use for polar solvent-oil separation
US4913864A (en) * 1987-11-19 1990-04-03 Teijin Limited Process for preparation of porous hollow filament
US4980063A (en) * 1989-01-27 1990-12-25 The Dow Chemical Company Compositions useful for preparing cellulose ester membranes for liquid separations
US5011637A (en) * 1989-01-23 1991-04-30 The Dow Chemical Company Preparing cellulose ester membranes for gas separation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038684A (en) * 1973-08-09 1975-04-10

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5038684A (en) * 1973-08-09 1975-04-10

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57119809A (en) * 1981-01-19 1982-07-26 Daicel Chem Ind Ltd Production of ultrafiltration membrane
US4541972A (en) * 1983-12-14 1985-09-17 Exxon Research And Engineering Co. Preparation of cellulose acetate membrane and its use for polar solvent-oil separation
US4913864A (en) * 1987-11-19 1990-04-03 Teijin Limited Process for preparation of porous hollow filament
US5011637A (en) * 1989-01-23 1991-04-30 The Dow Chemical Company Preparing cellulose ester membranes for gas separation
US4980063A (en) * 1989-01-27 1990-12-25 The Dow Chemical Company Compositions useful for preparing cellulose ester membranes for liquid separations

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