GB1166243A - Improvements in or relating to Tubular Semi-Permeable Membranes. - Google Patents

Improvements in or relating to Tubular Semi-Permeable Membranes.

Info

Publication number
GB1166243A
GB1166243A GB728666A GB728666A GB1166243A GB 1166243 A GB1166243 A GB 1166243A GB 728666 A GB728666 A GB 728666A GB 728666 A GB728666 A GB 728666A GB 1166243 A GB1166243 A GB 1166243A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
tube
vessel
water
tubular semi
cellulose acetate
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
GB728666A
Inventor
Derek Pepper
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.)
United Kingdom Atomic Energy Authority
Original Assignee
United Kingdom Atomic Energy Authority
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/04Tubular membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002Organic membrane formation
    • B01D67/0009Organic membrane formation by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0013Casting processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/08Polysaccharides
    • B01D71/12Cellulose derivatives
    • B01D71/14Esters of organic acids
    • B01D71/16Cellulose acetate

Abstract

1,166,243. Tubular semi-permeable cellulose acetate membrane. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 30 Jan., 1967 [18 Feb., 1966], No. 7286/66. Heading B5B. In a process for manufacturing a tubular semi-permeable membrane, cellulose acetate casting solution contained in a vessel 1, is forced by a piston 3, through an annular orifice 7 defined by a conical portion 4 of the said vessel and a tube 6 which passes axially through the main portion of the vessel. A further tube 8 is contained within the tube 6 and its end extends below the said annular orifice. The tube is cast through the orifice into a water bath 5 and air supplied, under pressure, by the tube 6, dries a portion of the interior surface thereof. A mixture of air and water is withdrawn through tube 8, thereby causing a constant flow of water through the tube after it is formed and subsequent to the drying stage. The tube may then be treated with hot water to improve its properties.
GB728666A 1966-02-18 1966-02-18 Improvements in or relating to Tubular Semi-Permeable Membranes. Expired GB1166243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB728666A GB1166243A (en) 1966-02-18 1966-02-18 Improvements in or relating to Tubular Semi-Permeable Membranes.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB728666A GB1166243A (en) 1966-02-18 1966-02-18 Improvements in or relating to Tubular Semi-Permeable Membranes.
FR95025A FR1511443A (en) 1966-02-18 1967-02-15 Method and apparatus for manufacturing semi-permeable tubular membranes
DE19671729071 DE1729071A1 (en) 1966-02-18 1967-02-17 Method and apparatus for the production of semi-permeable reverse osmosis Scheidewaenden

Publications (1)

Publication Number Publication Date
GB1166243A true true GB1166243A (en) 1969-10-08

Family

ID=9830186

Family Applications (1)

Application Number Title Priority Date Filing Date
GB728666A Expired GB1166243A (en) 1966-02-18 1966-02-18 Improvements in or relating to Tubular Semi-Permeable Membranes.

Country Status (3)

Country Link
DE (1) DE1729071A1 (en)
FR (1) FR1511443A (en)
GB (1) GB1166243A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7118674B2 (en) 2004-10-14 2006-10-10 Itt Manufacturing Enterprises, Inc. Energy-efficient biological treatment with membrane filtration

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5721563B2 (en) * 1978-11-02 1982-05-08

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7118674B2 (en) 2004-10-14 2006-10-10 Itt Manufacturing Enterprises, Inc. Energy-efficient biological treatment with membrane filtration
US7179370B2 (en) 2004-10-14 2007-02-20 Itt Manufacturing Enterprises, Inc. Energy-efficient biological treatment system with filtration membrane
US7476322B2 (en) 2004-10-14 2009-01-13 Itt Manufacturing Enterprises, Inc. Process and energy-efficient biological treatment system with filtration membrane

Also Published As

Publication number Publication date Type
DE1729071A1 (en) 1971-06-09 application
FR1511443A (en) 1968-01-26 grant

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees