GB1158512A - Process for the manufacture of Reverse Osmosis Membranes - Google Patents

Process for the manufacture of Reverse Osmosis Membranes

Info

Publication number
GB1158512A
GB1158512A GB11015/67A GB1101567A GB1158512A GB 1158512 A GB1158512 A GB 1158512A GB 11015/67 A GB11015/67 A GB 11015/67A GB 1101567 A GB1101567 A GB 1101567A GB 1158512 A GB1158512 A GB 1158512A
Authority
GB
United Kingdom
Prior art keywords
reverse osmosis
manufacture
march
osmosis membranes
division
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.)
Expired
Application number
GB11015/67A
Inventor
Frederick Forbes
Allan Sharples
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.)
Arthur D Little Research Institute
Original Assignee
Arthur D Little Research Institute
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 Arthur D Little Research Institute filed Critical Arthur D Little Research Institute
Priority to GB11015/67A priority Critical patent/GB1158512A/en
Priority to IL29555A priority patent/IL29555A/en
Priority to FR1555331D priority patent/FR1555331A/fr
Priority to NL6803244A priority patent/NL6803244A/xx
Priority to ES351354A priority patent/ES351354A1/en
Priority to DE1642792A priority patent/DE1642792B2/en
Priority to BE711950D priority patent/BE711950A/xx
Priority to CH344268A priority patent/CH516942A/en
Publication of GB1158512A publication Critical patent/GB1158512A/en
Expired 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0016—Coagulation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

1,158,512. Desalination. ARTHUR D. LITTLE RESEARCH INSTITUTE. 1 March, 1968 [8 March, 1967], No: 11015/67. Heading B1X. [Also in Division B5] A membrane of cellulose acetate which has been prepared by casting from a mixed solution containing ZnCl 2 or LiCNS (see Division B5) is used in reverse osmosis apparatus at 600 lb/sq. in to remove NaCl from an aqueous 0.4% solution thereof. Examples show the variation in solute rejection with variations in the membrane composition, its preparing process, and its thickness. Magnesium sulphate, calcium sulphate and sugar are also mentioned as solutes.
GB11015/67A 1967-03-08 1967-03-08 Process for the manufacture of Reverse Osmosis Membranes Expired GB1158512A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB11015/67A GB1158512A (en) 1967-03-08 1967-03-08 Process for the manufacture of Reverse Osmosis Membranes
IL29555A IL29555A (en) 1967-03-08 1968-03-01 Process for the manufacture of reverse osmosis membranes and membranes produced thereby
FR1555331D FR1555331A (en) 1967-03-08 1968-03-05
NL6803244A NL6803244A (en) 1967-03-08 1968-03-07
ES351354A ES351354A1 (en) 1967-03-08 1968-03-07 A procedure for the manufacture of semipermeable membranes for reverse osmosis. (Machine-translation by Google Translate, not legally binding)
DE1642792A DE1642792B2 (en) 1967-03-08 1968-03-08 Process for making semi-permeable membranes for performing reverse osmosis
BE711950D BE711950A (en) 1967-03-08 1968-03-08
CH344268A CH516942A (en) 1967-03-08 1968-03-08 Casting a cellulose acetate membrane for reverse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11015/67A GB1158512A (en) 1967-03-08 1967-03-08 Process for the manufacture of Reverse Osmosis Membranes

Publications (1)

Publication Number Publication Date
GB1158512A true GB1158512A (en) 1969-07-16

Family

ID=9978486

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11015/67A Expired GB1158512A (en) 1967-03-08 1967-03-08 Process for the manufacture of Reverse Osmosis Membranes

Country Status (8)

Country Link
BE (1) BE711950A (en)
CH (1) CH516942A (en)
DE (1) DE1642792B2 (en)
ES (1) ES351354A1 (en)
FR (1) FR1555331A (en)
GB (1) GB1158512A (en)
IL (1) IL29555A (en)
NL (1) NL6803244A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176668A (en) * 1977-05-02 1979-12-04 Amf Incorporated Novel reconstituted tobacco sheets and process
US4604204A (en) * 1979-09-19 1986-08-05 Aligena Ag Porous, semipermeable membranes of chemically modified cellulose acetate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176668A (en) * 1977-05-02 1979-12-04 Amf Incorporated Novel reconstituted tobacco sheets and process
US4604204A (en) * 1979-09-19 1986-08-05 Aligena Ag Porous, semipermeable membranes of chemically modified cellulose acetate

Also Published As

Publication number Publication date
IL29555A (en) 1972-04-27
NL6803244A (en) 1968-09-09
FR1555331A (en) 1969-01-24
ES351354A1 (en) 1969-12-01
BE711950A (en) 1968-07-15
DE1642792B2 (en) 1978-09-07
DE1642792A1 (en) 1971-02-25
CH516942A (en) 1971-12-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee