IT1241107B - Membrane da osmosi inversa a base di polipiperazinammide e procedimento di post-trattamento per la loro preparazione - Google Patents

Membrane da osmosi inversa a base di polipiperazinammide e procedimento di post-trattamento per la loro preparazione

Info

Publication number
IT1241107B
IT1241107B IT19995A IT1999590A IT1241107B IT 1241107 B IT1241107 B IT 1241107B IT 19995 A IT19995 A IT 19995A IT 1999590 A IT1999590 A IT 1999590A IT 1241107 B IT1241107 B IT 1241107B
Authority
IT
Italy
Prior art keywords
polipiperazinamide
post
preparation
reverse osmosis
treatment procedure
Prior art date
Application number
IT19995A
Other languages
English (en)
Other versions
IT9019995A1 (it
IT9019995A0 (it
Inventor
Soccorso Gaeta
Enrico Drioli
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 IT19995A priority Critical patent/IT1241107B/it
Publication of IT9019995A0 publication Critical patent/IT9019995A0/it
Priority to EP19900124101 priority patent/EP0451353A1/en
Publication of IT9019995A1 publication Critical patent/IT9019995A1/it
Application granted granted Critical
Publication of IT1241107B publication Critical patent/IT1241107B/it

Links

Classifications

    • 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
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/04—Tubular membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08—Hollow fibre membranes
    • 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
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/06—Specific viscosities of materials involved
    • 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
    • B01D2325/20—Specific permeability or cut-off range

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)
IT19995A 1990-04-11 1990-04-11 Membrane da osmosi inversa a base di polipiperazinammide e procedimento di post-trattamento per la loro preparazione IT1241107B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT19995A IT1241107B (it) 1990-04-11 1990-04-11 Membrane da osmosi inversa a base di polipiperazinammide e procedimento di post-trattamento per la loro preparazione
EP19900124101 EP0451353A1 (en) 1990-04-11 1990-12-13 Polypiperazinamide-based reverse-osmosis membranes and post-treatment process for their preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT19995A IT1241107B (it) 1990-04-11 1990-04-11 Membrane da osmosi inversa a base di polipiperazinammide e procedimento di post-trattamento per la loro preparazione

Publications (3)

Publication Number Publication Date
IT9019995A0 IT9019995A0 (it) 1990-04-11
IT9019995A1 IT9019995A1 (it) 1991-10-11
IT1241107B true IT1241107B (it) 1993-12-29

Family

ID=11162940

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19995A IT1241107B (it) 1990-04-11 1990-04-11 Membrane da osmosi inversa a base di polipiperazinammide e procedimento di post-trattamento per la loro preparazione

Country Status (2)

Country Link
EP (1) EP0451353A1 (it)
IT (1) IT1241107B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7156997B2 (en) 2001-10-05 2007-01-02 Dow Global Technologies Inc. Package assembly for piperazine-based membranes
NO2751376T3 (it) 2014-02-13 2018-03-24

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1153101B (it) * 1982-07-01 1987-01-14 Montedison Spa Procedimento per la preparazione di corpi formati anisotropi a base di poli-piperazinammidi
IT1222627B (it) * 1987-09-09 1990-09-05 Separem Spa Procedimento per la preparazione di membrane per osmosi inversa e membrane ottenute con tale procedimento

Also Published As

Publication number Publication date
EP0451353A1 (en) 1991-10-16
IT9019995A1 (it) 1991-10-11
IT9019995A0 (it) 1990-04-11

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Legal Events

Date Code Title Description
0001 Granted