NL171534B - Werkwijze voor het afscheiden van water uit mengsels die water en formaldehyd bevatten. - Google Patents

Werkwijze voor het afscheiden van water uit mengsels die water en formaldehyd bevatten.

Info

Publication number
NL171534B
NL171534B NLAANVRAGE7108109,A NL7108109A NL171534B NL 171534 B NL171534 B NL 171534B NL 7108109 A NL7108109 A NL 7108109A NL 171534 B NL171534 B NL 171534B
Authority
NL
Netherlands
Prior art keywords
water
membranes
june
contact
formaldehyd
Prior art date
Application number
NLAANVRAGE7108109,A
Other languages
English (en)
Other versions
NL7108109A (nl
NL171534C (nl
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/nl
Application granted granted Critical
Publication of NL171534C publication Critical patent/NL171534C/nl

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D309/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/34Heterocyclic 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
    • C07D309/36Heterocyclic 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
    • C07D309/40Oxygen atoms attached in positions 3 and 4, e.g. maltol
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/22Separation 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
    • B01D53/228Separation 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/36Pervaporation; Membrane distillation; Liquid permeation
    • B01D61/362Pervaporation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/76Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • B01D71/82Macromolecular 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
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00Halogens; Halogen acids
    • C01B7/01Chlorine; Hydrogen chloride
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/82Purification; Separation; Stabilisation; Use of additives
    • C07C209/84Purification
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00Preparation of carboxylic acid nitriles
    • C07C253/32Separation; Purification; Stabilisation; Use of additives
    • C07C253/34Separation; Purification
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78Separation; Purification; Stabilisation; Use of additives
    • C07C45/786Separation; Purification; Stabilisation; Use of additives by membrane separation process, e.g. pervaporation, perstraction, reverse osmosis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/14Membrane 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)
NLAANVRAGE7108109,A 1970-06-16 1971-06-14 Werkwijze voor het afscheiden van water uit mengsels die water en formaldehyd bevatten. NL171534C (nl)

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 (nl) 1971-12-20
NL171534B true NL171534B (nl) 1982-11-16
NL171534C NL171534C (nl) 1983-04-18

Family

ID=21945467

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7108109,A NL171534C (nl) 1970-06-16 1971-06-14 Werkwijze voor het afscheiden van water uit mengsels die water en formaldehyd bevatten.

Country Status (7)

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

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 (de) * 1982-06-01 1983-12-01 GFT Ingenieurbüro für Industrieanlagenbau, 6650 Homburg Mehrschichtige membran und ihre verwendung zur trennung von fluessigkeitsgemischen nach dem pervaporationsverfahren
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 (de) * 1985-04-26 1986-11-06 Hartmut Ernst Artur Dr. 6907 Nußloch Brüschke Verfahren zur herstellung von loesungs-diffusionsmembranen und ihre verwendung fuer die pervaporation
GB2174619B (en) * 1985-05-07 1989-05-04 Us Energy Pervaporation separation of ethanol-water mixtures using polyacrylic acid composite membranes
FR2641984B1 (fr) * 1989-01-26 1991-12-06 Acome Soc Coop Travailleurs Procede de concentration par pervaporation d'un liquide aqueux contenant des composes organiques volatils ou entrainables a la vapeur d'eau
JP3171947B2 (ja) * 1991-09-03 2001-06-04 ダイセル化学工業株式会社 ポリアクリロニトリル共重合体選択透過膜およびその製造方法
FR2802829B1 (fr) * 1999-12-24 2002-05-17 Atofina Procede de concentration de solution d'hydrazine aqueuse et dispositif pour sa mise en oeuvre
DE102004049056A1 (de) * 2004-10-08 2006-04-13 Ticona Gmbh Verfahren zur Herstellung und Reinigung von zyklischen Formalen
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 (zh) * 2021-06-24 2023-04-07 索闻特环保科技(上海)有限公司 含有异丙醇、乙腈、三乙胺和水的混合液的处理方法

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 (nl) * 1961-03-08
FR1583089A (nl) * 1968-07-18 1969-10-17

Also Published As

Publication number Publication date
JPS5410549B1 (nl) 1979-05-08
IL37060A0 (en) 1971-08-25
NL7108109A (nl) 1971-12-20
DE2129734A1 (de) 1971-12-23
BE768539A (fr) 1971-12-15
DE2129734C3 (de) 1982-02-18
IL37060A (en) 1975-05-22
NL171534C (nl) 1983-04-18
DE2129734B2 (de) 1981-02-05
FR2096358A5 (nl) 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