ZA704671B - Formed articles,comprising films,membranes and porous supports to be used in processes of reverse osmosis - Google Patents

Formed articles,comprising films,membranes and porous supports to be used in processes of reverse osmosis

Info

Publication number
ZA704671B
ZA704671B ZA704671A ZA704671A ZA704671B ZA 704671 B ZA704671 B ZA 704671B ZA 704671 A ZA704671 A ZA 704671A ZA 704671 A ZA704671 A ZA 704671A ZA 704671 B ZA704671 B ZA 704671B
Authority
ZA
South Africa
Prior art keywords
membranes
films
processes
reverse osmosis
formed articles
Prior art date
Application number
ZA704671A
Other languages
English (en)
Inventor
L Credali
P Parrini
Original Assignee
Consiglio Nazionale Ricerche
Montedison 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 Consiglio Nazionale Ricerche, Montedison Spa filed Critical Consiglio Nazionale Ricerche
Publication of ZA704671B publication Critical patent/ZA704671B/xx

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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polyamides (AREA)
ZA704671A 1969-07-08 1970-07-07 Formed articles,comprising films,membranes and porous supports to be used in processes of reverse osmosis ZA704671B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1931769 1969-07-08

Publications (1)

Publication Number Publication Date
ZA704671B true ZA704671B (en) 1971-04-28

Family

ID=11156673

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA704671A ZA704671B (en) 1969-07-08 1970-07-07 Formed articles,comprising films,membranes and porous supports to be used in processes of reverse osmosis

Country Status (11)

Country Link
US (2) US3687842A (es)
JP (1) JPS4835153B1 (es)
BE (1) BE753088A (es)
CA (1) CA922240A (es)
DE (1) DE2033544A1 (es)
ES (1) ES381520A1 (es)
FR (1) FR2054256A5 (es)
GB (1) GB1276595A (es)
IL (1) IL34860A (es)
NL (1) NL7009957A (es)
ZA (1) ZA704671B (es)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
ZA74296B (en) * 1973-01-16 1974-11-27 Montedison Spa Reverse osmosis anisotropic membranes with great water flow and strong saline rejection,based on polypiperazine amides,and process for preparing such membranes
US4259183A (en) * 1978-11-07 1981-03-31 Midwest Research Institute Reverse osmosis membrane
JPS55121891U (es) * 1979-02-22 1980-08-29
US4277344A (en) * 1979-02-22 1981-07-07 Filmtec Corporation Interfacially synthesized reverse osmosis membrane
US4337154A (en) * 1979-04-04 1982-06-29 Nippon Shokubai Kagaku Kogyo Co., Ltd. Crosslinked composite semipermeable membrane
IT1153101B (it) * 1982-07-01 1987-01-14 Montedison Spa Procedimento per la preparazione di corpi formati anisotropi a base di poli-piperazinammidi
US4659475A (en) * 1984-03-19 1987-04-21 Midwest Research Institute Composite reverse osmosis membrane comprising crosslinked poly(amine-epihalohydrin adduct)
US4769148A (en) * 1987-11-18 1988-09-06 The Dow Chemical Company Novel polyamide reverse osmosis membranes
US4859384A (en) * 1987-11-18 1989-08-22 Filmtec Corp. Novel polyamide reverse osmosis membranes
US5770136A (en) * 1995-08-07 1998-06-23 Huang; Xiaodi Method for consolidating powdered materials to near net shape and full density
US5922203A (en) * 1997-10-07 1999-07-13 Hydranautics Amine monomers and their use in preparing interfacially synthesized membranes for reverse osmosis and nanofiltration
US6042780A (en) * 1998-12-15 2000-03-28 Huang; Xiaodi Method for manufacturing high performance components
US6464873B1 (en) 1999-06-15 2002-10-15 Hydranautics Interfacially polymerized, bipiperidine-polyamide membranes for reverse osmosis and/or nanofiltration and process for making the same
US7156997B2 (en) * 2001-10-05 2007-01-02 Dow Global Technologies Inc. Package assembly for piperazine-based membranes
US8177978B2 (en) 2008-04-15 2012-05-15 Nanoh20, Inc. Reverse osmosis membranes
ES2715823T3 (es) 2009-06-29 2019-06-06 Nanoh2O Inc Membranas TFC para RO híbridas mejoradas con aditivos nitrogenados
AU2011326483B2 (en) 2010-11-10 2017-02-23 Nanoh2O, Inc. Improved hybrid TFC RO membranes with non-metallic additives
US9861940B2 (en) 2015-08-31 2018-01-09 Lg Baboh2O, Inc. Additives for salt rejection enhancement of a membrane
US9737859B2 (en) 2016-01-11 2017-08-22 Lg Nanoh2O, Inc. Process for improved water flux through a TFC membrane
US10155203B2 (en) 2016-03-03 2018-12-18 Lg Nanoh2O, Inc. Methods of enhancing water flux of a TFC membrane using oxidizing and reducing agents

Also Published As

Publication number Publication date
IL34860A0 (en) 1970-09-17
DE2033544A1 (de) 1971-01-21
CA922240A (en) 1973-03-06
BE753088A (fr) 1971-01-07
FR2054256A5 (es) 1971-04-16
US3743596A (en) 1973-07-03
GB1276595A (en) 1972-06-01
ES381520A1 (es) 1973-04-16
NL7009957A (es) 1971-01-12
US3687842A (en) 1972-08-29
IL34860A (en) 1973-04-30
JPS4835153B1 (es) 1973-10-26

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