GB1134582A - A process for the removal of corrosive contaminants from sulfolane-type solvents - Google Patents

A process for the removal of corrosive contaminants from sulfolane-type solvents

Info

Publication number
GB1134582A
GB1134582A GB1580167A GB1580167A GB1134582A GB 1134582 A GB1134582 A GB 1134582A GB 1580167 A GB1580167 A GB 1580167A GB 1580167 A GB1580167 A GB 1580167A GB 1134582 A GB1134582 A GB 1134582A
Authority
GB
United Kingdom
Prior art keywords
sulpholane
solvent
aqueous
alkali
type
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
GB1580167A
Inventor
Gerrit Van Gooswilligen
Heinz Voetter
Werner Ridderikhoff
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB1580167A priority Critical patent/GB1134582A/en
Priority to FR1575672D priority patent/FR1575672A/fr
Priority to NL6804724A priority patent/NL160823C/en
Priority to DE19681768144 priority patent/DE1768144A1/en
Publication of GB1134582A publication Critical patent/GB1134582A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/46—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings substituted on the ring sulfur atom
    • C07D333/48—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings substituted on the ring sulfur atom by oxygen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,134,582. Purification of sulpholane-type solvents. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 6 April, 1967, No. 15801/67. Heading C2C. Sulpholane-type solvents containing corrosive contaminants are purified by contact with an aqueous solution containing an alkaline compound and with an alkali-resistant liquid, which is sparingly soluble in water and which dissolves the sulpholane-type solvent more readily than water, separating a solvent phase containing alkali-resistant liquid from the aqueous phase and subsequently recovering the sulpholane-type solvent from the solvent phase. The preferred alkali-resistant liquids are hydrocarbons, e.g. benzene. The aqueous alkaline solution is suitably provided by dilute aqueous solution of an alkali or alkaline earth metal salt, e.g. NaOH. The aqueous alkaline solution preferably also contains a neutral salt, e.g. NaC1, to counteract the formation of emulsions and facilitate gravity separation of the aqueous and solvent phases. It is preferred to separate the sulpholane from the solvent phase by distillation. The process is illustrated by reference to schematic flow diagrams (not shown).
GB1580167A 1967-04-06 1967-04-06 A process for the removal of corrosive contaminants from sulfolane-type solvents Expired GB1134582A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1580167A GB1134582A (en) 1967-04-06 1967-04-06 A process for the removal of corrosive contaminants from sulfolane-type solvents
FR1575672D FR1575672A (en) 1967-04-06 1968-04-04
NL6804724A NL160823C (en) 1967-04-06 1968-04-04 PROCESS FOR THE REMOVAL OF CONTAMINANTS FROM SULPHOLAN-TYPE SOLVENTS.
DE19681768144 DE1768144A1 (en) 1967-04-06 1968-04-04 Process for regenerating sulfolane-type solvents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1580167A GB1134582A (en) 1967-04-06 1967-04-06 A process for the removal of corrosive contaminants from sulfolane-type solvents

Publications (1)

Publication Number Publication Date
GB1134582A true GB1134582A (en) 1968-11-27

Family

ID=10065715

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1580167A Expired GB1134582A (en) 1967-04-06 1967-04-06 A process for the removal of corrosive contaminants from sulfolane-type solvents

Country Status (4)

Country Link
DE (1) DE1768144A1 (en)
FR (1) FR1575672A (en)
GB (1) GB1134582A (en)
NL (1) NL160823C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3406762A4 (en) * 2016-03-22 2019-08-28 Kurita Water Industries Ltd. Method for reducing corrosive ions in aromatic compound extraction solvent

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163741B (en) * 1984-08-31 1987-12-02 El Paso Products Co Recovery of sulfolane
CH668260A5 (en) * 1986-08-25 1988-12-15 Ciba Geigy Ag PROCESS FOR WORKING UP REACTION RESIDUE FROM CYANURFLUORIDE PRODUCTION.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3406762A4 (en) * 2016-03-22 2019-08-28 Kurita Water Industries Ltd. Method for reducing corrosive ions in aromatic compound extraction solvent

Also Published As

Publication number Publication date
FR1575672A (en) 1969-07-25
NL6804724A (en) 1968-10-07
NL160823C (en) 1979-12-17
DE1768144A1 (en) 1971-04-29

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