NL171534C - METHOD FOR SEPARATING WATER FROM MIXTURES CONTAINING WATER AND FORMALDEHYD. - Google Patents

METHOD FOR SEPARATING WATER FROM MIXTURES CONTAINING WATER AND FORMALDEHYD.

Info

Publication number
NL171534C
NL171534C NLAANVRAGE7108109,A NL7108109A NL171534C NL 171534 C NL171534 C NL 171534C NL 7108109 A NL7108109 A NL 7108109A NL 171534 C NL171534 C NL 171534C
Authority
NL
Netherlands
Prior art keywords
water
membranes
june
contact
formaldehyd
Prior art date
Application number
NLAANVRAGE7108109,A
Other languages
Dutch (nl)
Other versions
NL7108109A (en
NL171534B (en
Original Assignee
Monsanto Co
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 Monsanto Co filed Critical Monsanto Co
Publication of NL7108109A publication Critical patent/NL7108109A/xx
Publication of NL171534B publication Critical patent/NL171534B/en
Application granted granted Critical
Publication of NL171534C publication Critical patent/NL171534C/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/34—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D309/36—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms
    • C07D309/40—Oxygen atoms attached in positions 3 and 4, e.g. maltol
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
    • 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
    • B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
    • B01D61/362—Pervaporation
    • 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
    • B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • B01D71/82—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74 characterised by the presence of specified groups, e.g. introduced by chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/01—Chlorine; Hydrogen chloride
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/82—Purification; Separation; Stabilisation; Use of additives
    • C07C209/84—Purification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/32—Separation; Purification; Stabilisation; Use of additives
    • C07C253/34—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/786—Separation; Purification; Stabilisation; Use of additives by membrane separation process, e.g. pervaporation, perstraction, reverse osmosis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/14—Membrane materials having negatively charged functional groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

1351188 Separation of water from aqueous solutions MONSANTO CO 15 June 1971 [16 June 1970] 27991/71 Heading B1X Water is separated from a liquid or gaseous feed mixture by contact with one side of a water permeable, non-nitrogen containing organic polymer membrane containing at least one anionic group and optional cationic groups. The other side of the membrane is in contact with a vapour phase, preferably flowing having a lower chemical potential than the feed mitxure. The membranes may be discs, sheets, hollow tubes or fibres and may be multilayered. The membranes may be subjected to heat or hydrochloric acid as a pretreatment. The membranes may be made by co-polymerising styrene and acrylic acid with dimethyl formamide and a azobisisobutyronitrile, catalyst. Tertiary butyl catechol is used to stop the reaction.
NLAANVRAGE7108109,A 1970-06-16 1971-06-14 METHOD FOR SEPARATING WATER FROM MIXTURES CONTAINING WATER AND FORMALDEHYD. NL171534C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4680170A 1970-06-16 1970-06-16

Publications (3)

Publication Number Publication Date
NL7108109A NL7108109A (en) 1971-12-20
NL171534B NL171534B (en) 1982-11-16
NL171534C true NL171534C (en) 1983-04-18

Family

ID=21945467

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7108109,A NL171534C (en) 1970-06-16 1971-06-14 METHOD FOR SEPARATING WATER FROM MIXTURES CONTAINING WATER AND FORMALDEHYD.

Country Status (7)

Country Link
JP (1) JPS5410549B1 (en)
BE (1) BE768539A (en)
DE (1) DE2129734C3 (en)
FR (1) FR2096358A5 (en)
GB (1) GB1351188A (en)
IL (1) IL37060A (en)
NL (1) NL171534C (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1396091A (en) * 1971-02-18 1975-05-29 Babcock & Wilcox Ltd Semi-permeable membranes
FR2214675A1 (en) * 1973-01-23 1974-08-19 Rhone Poulenc Sa Reverse osmosis of aq. phenol solns - using a sulphonated polyarylether semi-permeable membrane
JPS5214584A (en) * 1975-07-25 1977-02-03 Asahi Glass Co Ltd Electrodialysis method of a base-containing solution
US4218312A (en) * 1975-12-01 1980-08-19 Monsanto Company Membrane separation of organics from aqueous solutions
DE2964867D1 (en) * 1978-12-06 1983-03-24 Abcor Inc Hydrophilic polymeric membranes, process for their preparation, their use as ultrafiltration membranes, and precursor membranes adapted to be converted thereto
JPS57212232A (en) * 1981-06-24 1982-12-27 Asahi Chem Ind Co Ltd Composite hydrophilic membrane and its preparation
DE3220570A1 (en) * 1982-06-01 1983-12-01 GFT Ingenieurbüro für Industrieanlagenbau, 6650 Homburg MULTILAYERED MEMBRANE AND THEIR USE FOR SEPARATING LIQUID MIXTURES BY THE PERVAPORATION PROCESS
DE3380299D1 (en) * 1983-12-14 1989-09-07 Dow Chemical Co A process for separating mixtures of water and an organic compoundand a water-selective permeation membrane
US4851120A (en) * 1984-04-23 1989-07-25 The Dow Chemical Company Anionic polysaccharide separation membranes
GB8419174D0 (en) * 1984-07-27 1984-08-30 British Petroleum Co Plc Separation of water from organic liquids
DE3515184A1 (en) * 1985-04-26 1986-11-06 Hartmut Ernst Artur Dr. 6907 Nußloch Brüschke METHOD FOR PRODUCING SOLUTION DIFFUSION MEMBRANES AND THEIR USE FOR PERVAPORATION
GB2174619B (en) * 1985-05-07 1989-05-04 Us Energy Pervaporation separation of ethanol-water mixtures using polyacrylic acid composite membranes
FR2641984B1 (en) * 1989-01-26 1991-12-06 Acome Soc Coop Travailleurs PROCESS OF CONCENTRATION BY PERVAPORATION OF AN AQUEOUS LIQUID CONTAINING ORGANIC COMPOUNDS VOLATILE OR VAPORABLE BY WATER VAPOR
JP3171947B2 (en) * 1991-09-03 2001-06-04 ダイセル化学工業株式会社 Polyacrylonitrile copolymer selectively permeable membrane and method for producing the same
FR2802829B1 (en) * 1999-12-24 2002-05-17 Atofina PROCESS FOR CONCENTRATION OF AQUEOUS HYDRAZINE SOLUTION AND DEVICE FOR IMPLEMENTING SAME
DE102004049056A1 (en) * 2004-10-08 2006-04-13 Ticona Gmbh Process for the preparation and purification of cyclic formals
US8366811B2 (en) * 2009-03-03 2013-02-05 Oridion Medical (1987) Ltd. Drying substances, preparation and use thereof
US8747752B2 (en) 2009-03-03 2014-06-10 Oridion Medical (1987) Ltd. Drying substances, preparation and use thereof
US9067035B2 (en) 2009-03-03 2015-06-30 Oridion Medical (1987) Ltd. Drying substances, preparation and use thereof
CN113321597B (en) * 2021-06-24 2023-04-07 索闻特环保科技(上海)有限公司 Method for treating mixed liquid containing isopropanol, acetonitrile, triethylamine and water

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953502A (en) * 1955-05-24 1960-09-20 American Oil Co Separation of azeotropic mixtures
BE602045A (en) * 1961-03-08
FR1583089A (en) * 1968-07-18 1969-10-17

Also Published As

Publication number Publication date
JPS5410549B1 (en) 1979-05-08
IL37060A0 (en) 1971-08-25
NL7108109A (en) 1971-12-20
DE2129734A1 (en) 1971-12-23
BE768539A (en) 1971-12-15
DE2129734C3 (en) 1982-02-18
IL37060A (en) 1975-05-22
DE2129734B2 (en) 1981-02-05
NL171534B (en) 1982-11-16
FR2096358A5 (en) 1972-02-11
GB1351188A (en) 1974-04-24

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee