FR2222114A1 - Membranes for ultra or hyper filtration - obtd. from ethyl cellulose in tetrahydrofuran soln. - Google Patents

Membranes for ultra or hyper filtration - obtd. from ethyl cellulose in tetrahydrofuran soln.

Info

Publication number
FR2222114A1
FR2222114A1 FR7409540A FR7409540A FR2222114A1 FR 2222114 A1 FR2222114 A1 FR 2222114A1 FR 7409540 A FR7409540 A FR 7409540A FR 7409540 A FR7409540 A FR 7409540A FR 2222114 A1 FR2222114 A1 FR 2222114A1
Authority
FR
France
Prior art keywords
soln
membranes
ethyl cellulose
obtd
tetrahydrofuran
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.)
Withdrawn
Application number
FR7409540A
Other languages
English (en)
French (fr)
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.)
Danske Sukkerfabrikker AS
Original Assignee
Danske Sukkerfabrikker AS
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 Danske Sukkerfabrikker AS filed Critical Danske Sukkerfabrikker AS
Publication of FR2222114A1 publication Critical patent/FR2222114A1/fr
Withdrawn legal-status Critical Current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
    • B01D71/22—Cellulose ethers
    • 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
    • B01D67/0011—Casting solutions therefor
    • 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
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • 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
    • B01D61/145—Ultrafiltration

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)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
FR7409540A 1973-03-22 1974-03-20 Membranes for ultra or hyper filtration - obtd. from ethyl cellulose in tetrahydrofuran soln. Withdrawn FR2222114A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK157973 1973-03-22

Publications (1)

Publication Number Publication Date
FR2222114A1 true FR2222114A1 (en) 1974-10-18

Family

ID=8106250

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7409540A Withdrawn FR2222114A1 (en) 1973-03-22 1974-03-20 Membranes for ultra or hyper filtration - obtd. from ethyl cellulose in tetrahydrofuran soln.

Country Status (5)

Country Link
JP (1) JPS5081973A (enExample)
DE (1) DE2413157A1 (enExample)
FR (1) FR2222114A1 (enExample)
IL (1) IL44449A0 (enExample)
NL (1) NL7403737A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0286091A3 (en) * 1987-04-08 1990-01-31 Union Carbide Corporation Composite membranes for enhanced fluid separation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496456A (en) * 1983-06-03 1985-01-29 Exxon Research & Engineering Co. Method for preparing thin regenerated cellulose membranes of high flux and selectivity for organic liquids separations
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
US4678555A (en) * 1983-12-14 1987-07-07 Exxon Research And Engineering Company Preparation of cellulose acetate membrane and its use for polar solvent-oil separation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0286091A3 (en) * 1987-04-08 1990-01-31 Union Carbide Corporation Composite membranes for enhanced fluid separation

Also Published As

Publication number Publication date
NL7403737A (enExample) 1974-09-24
IL44449A0 (en) 1974-06-30
DE2413157A1 (de) 1974-10-03
JPS5081973A (enExample) 1975-07-03

Similar Documents

Publication Publication Date Title
FR2360623B1 (enExample)
JPS51123511A (en) Degree recording method
SE7414081L (sv) Hydrofobt substrat
SE8002388L (sv) Anisotropa membran och sett att framstella sadana
MY107411A (en) Interfacially polymerized membranes for the reverse osmosis separation of organic solvent solutions.
FR2222114A1 (en) Membranes for ultra or hyper filtration - obtd. from ethyl cellulose in tetrahydrofuran soln.
JPS5251009A (en) Method of producing drug for treating marrow leukemia
JPS5237445A (en) Lens system rendering variable characteristics of an image plane
JPS5361203A (en) Language information input devicw
JPS5343515A (en) Diaphragm for speaker
IE36656L (en) Synthetic polymer fibrils
GB1259656A (enExample)
JPS5242047A (en) Personality recognition system
SU91839A1 (ru) Способ внесени тембрально-акустических искажений при копировании нормально записанной фонограммы
JPS51137677A (en) Process for production of separating membranes
GB940096A (en) Method of recording electrical signals
JPS52127007A (en) Voice recognition method
FR2265454A2 (en) Polyether-polycarbonate block copolymer films - esp for haemodialysis made by casting from soln
JPS5315272A (en) Bonding method for semipermeable membranes made of acrylonitrile copolymer
JPS5239800A (en) Preparation of a ring-opening (co)polymer
JPS5323877A (en) Refining apparatus
JPS5247082A (en) Process for producing thermoplastic polymers
IT1069788B (it) Procedimento per la preparazione di membrane asimmetriche di polimere fluorurati per ultrafiltrazione
IT1067872B (it) Procedimento per la preparazione di membrane asimmetriche per osmosi inversa ed ultrafiltrazione partendo da polimeri fluorurati
JPS536389A (en) Manufacture of resin composites

Legal Events

Date Code Title Description
RE Withdrawal of published application