CH475019A - Verfahren zur Reinigung von Lösungsmitteln - Google Patents

Verfahren zur Reinigung von Lösungsmitteln

Info

Publication number
CH475019A
CH475019A CH1131966A CH1131966A CH475019A CH 475019 A CH475019 A CH 475019A CH 1131966 A CH1131966 A CH 1131966A CH 1131966 A CH1131966 A CH 1131966A CH 475019 A CH475019 A CH 475019A
Authority
CH
Switzerland
Prior art keywords
solvents
cleaning
methods
Prior art date
Application number
CH1131966A
Other languages
English (en)
Inventor
James Craig Stephen
Trevor Desouza John
Original Assignee
Ici Ltd
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
Priority claimed from GB3373165A external-priority patent/GB1080718A/en
Priority claimed from GB33731/66A external-priority patent/GB1100075A/en
Application filed by Ici Ltd filed Critical Ici Ltd
Publication of CH475019A publication Critical patent/CH475019A/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
    • C07D307/06—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
    • C07D307/08—Preparation of tetrahydrofuran
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
    • C07C7/14833—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with metals or their inorganic compounds
    • C07C7/14841—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with metals or their inorganic compounds metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CH1131966A 1965-08-06 1966-08-05 Verfahren zur Reinigung von Lösungsmitteln CH475019A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3373165A GB1080718A (en) 1965-08-06 1965-08-06 Solvent purification process
GB33731/66A GB1100075A (en) 1966-05-06 1966-07-25 Vehicle steering assembly

Publications (1)

Publication Number Publication Date
CH475019A true CH475019A (de) 1969-07-15

Family

ID=26261994

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1131966A CH475019A (de) 1965-08-06 1966-08-05 Verfahren zur Reinigung von Lösungsmitteln

Country Status (3)

Country Link
US (1) US3410760A (de)
CH (1) CH475019A (de)
DE (1) DE1285472B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT956765B (it) * 1972-06-22 1973-10-10 Montedison Spa Procedimento per la purificazione di 1 3 diossolano
US4197248A (en) * 1978-03-22 1980-04-08 E. I. Du Pont De Nemours And Company Reduction in chemical oxygen demand of water from crude tetrahydrofuran
DE3125107A1 (de) * 1981-06-26 1983-01-13 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung lagerstabiler (poly-)alkylenglycolmonoalkylether
US5425854A (en) * 1995-01-17 1995-06-20 Lloyd Berg Separation of methylene chloride from tetrahydrofuran by extractive distillation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1466435A (en) * 1921-12-29 1923-08-28 Us Ind Alcohol Co Process of dehydrating organic liquids
GB219273A (en) * 1923-07-21 1924-10-24 Nl Gist En Spiritusfabriek A process for producing chemically pure, toxic free narcotising ether
US2912366A (en) * 1958-01-09 1959-11-10 Argus Chem Process for the purification of organic solvents
US3155657A (en) * 1961-07-20 1964-11-03 Jefferson Chem Co Inc Process for the production of polyglycolamine and morpholine

Also Published As

Publication number Publication date
US3410760A (en) 1968-11-12
DE1285472B (de) 1968-12-19

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Legal Events

Date Code Title Description
PL Patent ceased