DE2129723C3 - Trennverfahren - Google Patents

Trennverfahren

Info

Publication number
DE2129723C3
DE2129723C3 DE2129723A DE2129723A DE2129723C3 DE 2129723 C3 DE2129723 C3 DE 2129723C3 DE 2129723 A DE2129723 A DE 2129723A DE 2129723 A DE2129723 A DE 2129723A DE 2129723 C3 DE2129723 C3 DE 2129723C3
Authority
DE
Germany
Prior art keywords
acid
membrane
formaldehyde
water
coo
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DE2129723A
Other languages
German (de)
English (en)
Other versions
DE2129723A1 (de
DE2129723B2 (de
Inventor
Eli St. Louis Mo. Perry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Monsanto Co
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 DE2129723A1 publication Critical patent/DE2129723A1/de
Publication of DE2129723B2 publication Critical patent/DE2129723B2/de
Application granted granted Critical
Publication of DE2129723C3 publication Critical patent/DE2129723C3/de
Expired legal-status Critical Current

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
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/24—Dialysis ; Membrane extraction
    • B01D61/246—Membrane extraction
    • 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
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14—The ring being saturated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE2129723A 1970-06-16 1971-06-15 Trennverfahren Expired DE2129723C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4680070A 1970-06-16 1970-06-16

Publications (3)

Publication Number Publication Date
DE2129723A1 DE2129723A1 (de) 1971-12-23
DE2129723B2 DE2129723B2 (de) 1980-09-04
DE2129723C3 true DE2129723C3 (de) 1981-08-20

Family

ID=21945460

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2129723A Expired DE2129723C3 (de) 1970-06-16 1971-06-15 Trennverfahren

Country Status (7)

Country Link
JP (1) JPS5410548B1 (enExample)
BE (1) BE768540A (enExample)
DE (1) DE2129723C3 (enExample)
FR (1) FR2096357A5 (enExample)
GB (1) GB1351187A (enExample)
IL (1) IL37061A (enExample)
NL (1) NL170374C (enExample)

Families Citing this family (8)

* 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
US4218312A (en) * 1975-12-01 1980-08-19 Monsanto Company Membrane separation of organics from aqueous solutions
US4758348A (en) * 1985-02-01 1988-07-19 Sagami Chemical Research Center Copolymer, separating membrane made thereof and method for separating charge transfer interactive substance from a liquid mixture containing the same
DE3853366T2 (de) * 1987-12-02 1995-07-27 Japan As Represented By Minist Hydrolysierte Membran und Verfahren zu deren Herstellung.
US4992176A (en) * 1989-10-23 1991-02-12 Texaco Inc. Dehydration of organic oxygenates
DE102013223126A1 (de) * 2013-11-13 2015-05-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung von lösemittelstabilen Polymermembranen, Polymermembran sowie Lösung zur Herstellung einer Polymermembran
EP3639913A4 (en) * 2017-06-15 2021-04-14 Kaneka Corporation POROUS MEMBRANE INTENDED FOR USE IN WATER TREATMENT
CN108440306B (zh) * 2018-05-24 2023-11-03 柏川新材料科技(宁波)有限公司 一种四甲基碳酸铵的绿色生产的设备及方法

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 (enExample) * 1961-03-08
FR1578019A (enExample) * 1968-04-29 1969-08-14

Also Published As

Publication number Publication date
NL170374C (nl) 1982-11-01
IL37061A0 (en) 1971-08-25
FR2096357A5 (enExample) 1972-02-11
GB1351187A (en) 1974-04-24
JPS5410548B1 (enExample) 1979-05-08
IL37061A (en) 1974-11-29
NL7108146A (enExample) 1971-12-20
NL170374B (nl) 1982-06-01
DE2129723A1 (de) 1971-12-23
BE768540A (fr) 1971-12-15
DE2129723B2 (de) 1980-09-04

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Legal Events

Date Code Title Description
OD Request for examination
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee