IT7851950A0 - Perfezionamento nelle membrane cellulosiche microporose flessibili per microfiltrazione e procedimentodi formazione - Google Patents

Perfezionamento nelle membrane cellulosiche microporose flessibili per microfiltrazione e procedimentodi formazione

Info

Publication number
IT7851950A0
IT7851950A0 IT7851950A IT5195078A IT7851950A0 IT 7851950 A0 IT7851950 A0 IT 7851950A0 IT 7851950 A IT7851950 A IT 7851950A IT 5195078 A IT5195078 A IT 5195078A IT 7851950 A0 IT7851950 A0 IT 7851950A0
Authority
IT
Italy
Prior art keywords
microfiltration
improvement
formation procedure
cellulosic membranes
flexible microporous
Prior art date
Application number
IT7851950A
Other languages
English (en)
Italian (it)
Original Assignee
Johns Manville
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
Priority claimed from US05/953,377 external-priority patent/US4220477A/en
Application filed by Johns Manville filed Critical Johns Manville
Publication of IT7851950A0 publication Critical patent/IT7851950A0/it

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
    • 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
    • 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
    • B01D71/20—Esters of inorganic acids, e.g. cellulose nitrate
    • 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
    • B01D61/147—Microfiltration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
IT7851950A 1977-11-18 1978-11-17 Perfezionamento nelle membrane cellulosiche microporose flessibili per microfiltrazione e procedimentodi formazione IT7851950A0 (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85277677A 1977-11-18 1977-11-18
US05/953,377 US4220477A (en) 1978-10-23 1978-10-23 Flexible microporous cellulosic membranes and methods of formation and use thereof

Publications (1)

Publication Number Publication Date
IT7851950A0 true IT7851950A0 (it) 1978-11-17

Family

ID=27127086

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7851950A IT7851950A0 (it) 1977-11-18 1978-11-17 Perfezionamento nelle membrane cellulosiche microporose flessibili per microfiltrazione e procedimentodi formazione

Country Status (8)

Country Link
JP (1) JPS5490082A (de)
BR (1) BR7807556A (de)
CA (1) CA1096556A (de)
DE (1) DE2849863C3 (de)
FR (1) FR2409077A1 (de)
GB (1) GB2009031B (de)
IE (1) IE47585B1 (de)
IT (1) IT7851950A0 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19613484A1 (de) * 1996-04-04 1997-10-09 Buna Sow Leuna Olefinverb Gmbh Formmassen zur Herstellung von Gastrennmembranen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE329117C (de) * 1916-08-21 1920-11-15 Richard Zsigmondy Dr Membranfilter und Verfahren zu deren Herstellung
DE1017596B (de) * 1956-07-04 1957-10-17 Membranfiltergesellschaft Sart Verfahren und Vorrichtung zur kontinuierlichen Herstellung von Membranfiltern
JPS5538366B2 (de) * 1974-03-13 1980-10-03
GB1430323A (en) * 1974-03-20 1976-03-31 Chem Systems Process for the preparation of asymmetric reverse osmosis membranes

Also Published As

Publication number Publication date
BR7807556A (pt) 1979-07-24
JPS5490082A (en) 1979-07-17
FR2409077B1 (de) 1984-11-16
IE782266L (en) 1979-05-18
DE2849863B2 (de) 1981-03-12
GB2009031B (en) 1982-03-10
DE2849863C3 (de) 1982-06-24
DE2849863A1 (de) 1979-05-31
CA1096556A (en) 1981-03-03
IE47585B1 (en) 1984-05-02
JPS5634132B2 (de) 1981-08-08
FR2409077A1 (fr) 1979-06-15
GB2009031A (en) 1979-06-13

Similar Documents

Publication Publication Date Title
DK185587A (da) Mikroporoes ultrafiltreringsmembran
IT1079471B (it) Procedimento per la preparazione di membrane semipermeabili e prodotto ottenuto
IT1067339B (it) Membrane composite semipermeabili
GB2016024B (en) Reverse osmosis semipermeable membrane
GB2070974B (en) Supported semipermeable membrane
DK193287D0 (da) Sammensat membran
MX159153A (es) Membrana compuesta semipermeable y procedimiento para su fabricacion
GB2051664B (en) Preparing selective permeable membranes
IT1078944B (it) Membrana di dialisi per emodialisi e procedimento per la sua produzione
IT7851090A0 (it) Membrane semipermeabili di copolimeri di acrilnitrile
IT1086695B (it) Membrana oculare e metodo per la sua preparazione
IT1068436B (it) Procedimento per produrre membrane atte alla separazione osmotica
JPS5375175A (en) Semipermeable membrane and manufacture thereof
IT1053401B (it) Membrana porosa e procedimento per prepararla
IT1066606B (it) Procedimento per la produzione di membrane per ultrafiltrazione accoppiate con enzima e membrana ottenuta
DE3065538D1 (en) Permselective membrane
IT8149622A0 (it) Membrana di cellulosa microporosa eprocedimento per la sua produzione
IT1085160B (it) Membrane semipermeabili e procedimento per la loro produzione
DK193787A (da) Sammensat membran
MX158957A (es) Membrana polimerica asimetrica de ultrafiltracion y procedimiento para su obtencion
IT8147856A0 (it) Perfezionamento nelle membrane per plasmaferesi e procedimento per laloro produzione
IT7948386A0 (it) Procedimento per il trattamento di membrane semipermeabili e prodotto ottenuto
IT7950414A0 (it) Perfezionamento nelle membrane di dialisi in cellulosa e procedimentodi produzione
GB2001899B (en) Hollow fibre membranes for ultrafiltration and method for producing same
SE7711632L (sv) Anordning for diffusion och/eller filtration av emnen mellan tva fluider via semipermeabla membran ga 041