JPS5499082A - Oil-water separating method - Google Patents

Oil-water separating method

Info

Publication number
JPS5499082A
JPS5499082A JP86478A JP86478A JPS5499082A JP S5499082 A JPS5499082 A JP S5499082A JP 86478 A JP86478 A JP 86478A JP 86478 A JP86478 A JP 86478A JP S5499082 A JPS5499082 A JP S5499082A
Authority
JP
Japan
Prior art keywords
liquid
oil
permeated
water
surfactant
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
JP86478A
Other languages
Japanese (ja)
Other versions
JPS6327961B2 (en
Inventor
Takashi Nomi
Takao Yamada
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.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry 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 Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP86478A priority Critical patent/JPS5499082A/en
Publication of JPS5499082A publication Critical patent/JPS5499082A/en
Publication of JPS6327961B2 publication Critical patent/JPS6327961B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/16—Feed pretreatment
    • 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
    • B01D71/30—Polyalkenyl halides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE: To selectively take out water or a oil-immiscible solvent in large quantities by treating a liquid of a specific compsn. consisting of oil, water or the solvent, and a surfactant with a porous membrane made of resin with a critical surface tension above a specific value and having a specific average pore diameter.
CONSTITUTION: A liquid consisting of X parts of oil and Y parts of liquid substances including Z mol/l of a surfactant is permeated through a porous membrance made of resin with a critical surface tension above 35 dyn/cm, e.g. PVA, PVC, nylon, cellulose acetate or their mixt. and having an average pore diameter of 0.005W5 μm. The compsn. of the above liquid satisfies Z>0 when 0.02≤α≤0.5, Z>1.78 × 10-3α-8.9×10-4 when 0.5≤α≤0.8, and α=X/(X+Y). In case of contg. a nonionic surfactant, the liquid is permeated at above 60°C. The permeated liquid is water or an oil-immiscible solvent alone.
COPYRIGHT: (C)1979,JPO&Japio
JP86478A 1978-01-10 1978-01-10 Oil-water separating method Granted JPS5499082A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP86478A JPS5499082A (en) 1978-01-10 1978-01-10 Oil-water separating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP86478A JPS5499082A (en) 1978-01-10 1978-01-10 Oil-water separating method

Publications (2)

Publication Number Publication Date
JPS5499082A true JPS5499082A (en) 1979-08-04
JPS6327961B2 JPS6327961B2 (en) 1988-06-06

Family

ID=11485528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP86478A Granted JPS5499082A (en) 1978-01-10 1978-01-10 Oil-water separating method

Country Status (1)

Country Link
JP (1) JPS5499082A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5658504A (en) * 1979-10-19 1981-05-21 Kuraray Co Ltd Oil-water separating method
JP2004504940A (en) * 2000-07-29 2004-02-19 ユニバーシテイ・オブ・ニユーキヤツスル Improved method for separating oil and water

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49127873A (en) * 1973-04-12 1974-12-06
JPS50161473A (en) * 1974-06-20 1975-12-27
JPS52116648A (en) * 1976-03-26 1977-09-30 Sumitomo Electric Ind Ltd Process for treating waste water including oil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49127873A (en) * 1973-04-12 1974-12-06
JPS50161473A (en) * 1974-06-20 1975-12-27
JPS52116648A (en) * 1976-03-26 1977-09-30 Sumitomo Electric Ind Ltd Process for treating waste water including oil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5658504A (en) * 1979-10-19 1981-05-21 Kuraray Co Ltd Oil-water separating method
JP2004504940A (en) * 2000-07-29 2004-02-19 ユニバーシテイ・オブ・ニユーキヤツスル Improved method for separating oil and water

Also Published As

Publication number Publication date
JPS6327961B2 (en) 1988-06-06

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