IT8721852A0 - Procedimento per la praparazione di membrane per osmosi inversa e membrane ottenute con tale procedimento. - Google Patents

Procedimento per la praparazione di membrane per osmosi inversa e membrane ottenute con tale procedimento.

Info

Publication number
IT8721852A0
IT8721852A0 IT8721852A IT2185287A IT8721852A0 IT 8721852 A0 IT8721852 A0 IT 8721852A0 IT 8721852 A IT8721852 A IT 8721852A IT 2185287 A IT2185287 A IT 2185287A IT 8721852 A0 IT8721852 A0 IT 8721852A0
Authority
IT
Italy
Prior art keywords
procedure
membranes
preparation
reverse osmosis
membranes obtained
Prior art date
Application number
IT8721852A
Other languages
English (en)
Other versions
IT1222627B (it
Inventor
Enrico Drioli
Soccorso Gaeta
Marco Sogliano
Original Assignee
Separem Spa
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 Separem Spa filed Critical Separem Spa
Priority to IT21852/87A priority Critical patent/IT1222627B/it
Publication of IT8721852A0 publication Critical patent/IT8721852A0/it
Priority to EP89103490A priority patent/EP0357864B1/en
Priority to JP1051790A priority patent/JPH02233127A/ja
Application granted granted Critical
Publication of IT1222627B publication Critical patent/IT1222627B/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
    • B01D71/56—Polyamides, e.g. polyester-amides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02—Hollow fibre modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02—Hollow fibre modules
    • B01D63/021—Manufacturing thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/10—Spiral-wound membrane modules
    • 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
    • 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
    • B01D67/0039—Inorganic membrane manufacture
    • B01D67/0048—Inorganic membrane manufacture by sol-gel transition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/08—Specific temperatures applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/12—Specific ratios of components used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/022—Asymmetric membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/022—Asymmetric membranes
    • B01D2325/0231—Dense layers being placed on the outer side of the cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/04—Characteristic thickness

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
IT21852/87A 1987-09-09 1987-09-09 Procedimento per la preparazione di membrane per osmosi inversa e membrane ottenute con tale procedimento IT1222627B (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT21852/87A IT1222627B (it) 1987-09-09 1987-09-09 Procedimento per la preparazione di membrane per osmosi inversa e membrane ottenute con tale procedimento
EP89103490A EP0357864B1 (en) 1987-09-09 1989-02-28 Process for preparing reverse-osmosis membranes
JP1051790A JPH02233127A (ja) 1987-09-09 1989-03-03 逆浸透膜の製法およびその方法によって調製される膜

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21852/87A IT1222627B (it) 1987-09-09 1987-09-09 Procedimento per la preparazione di membrane per osmosi inversa e membrane ottenute con tale procedimento

Publications (2)

Publication Number Publication Date
IT8721852A0 true IT8721852A0 (it) 1987-09-09
IT1222627B IT1222627B (it) 1990-09-05

Family

ID=11187765

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21852/87A IT1222627B (it) 1987-09-09 1987-09-09 Procedimento per la preparazione di membrane per osmosi inversa e membrane ottenute con tale procedimento

Country Status (3)

Country Link
EP (1) EP0357864B1 (it)
JP (1) JPH02233127A (it)
IT (1) IT1222627B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1241107B (it) * 1990-04-11 1993-12-29 Separem Spa Membrane da osmosi inversa a base di polipiperazinammide e procedimento di post-trattamento per la loro preparazione

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL171019C (nl) * 1969-07-08 1983-02-01 Consiglio Nazionale Ricerche Membranen voor omgekeerde osmose.
BE793504A (fr) * 1971-12-30 1973-06-29 Montedison Spa Membranes anisotropes de retro-osmose et leur procede de preparation
US4129559A (en) * 1973-01-16 1978-12-12 Montedison S.P.A. Reverse osmosis anisotropic membranes based on polypiperazine amides
IT1153101B (it) * 1982-07-01 1987-01-14 Montedison Spa Procedimento per la preparazione di corpi formati anisotropi a base di poli-piperazinammidi

Also Published As

Publication number Publication date
IT1222627B (it) 1990-09-05
EP0357864B1 (en) 1993-10-06
JPH02233127A (ja) 1990-09-14
EP0357864A1 (en) 1990-03-14

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19930929