GB802384A - Improvements in or relating to the separation of sulphur from its suspension in aqueous liquids - Google Patents

Improvements in or relating to the separation of sulphur from its suspension in aqueous liquids

Info

Publication number
GB802384A
GB802384A GB14966/56A GB1496656A GB802384A GB 802384 A GB802384 A GB 802384A GB 14966/56 A GB14966/56 A GB 14966/56A GB 1496656 A GB1496656 A GB 1496656A GB 802384 A GB802384 A GB 802384A
Authority
GB
United Kingdom
Prior art keywords
sulphur
solvent
aqueous suspension
liquid
cold
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
GB14966/56A
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.)
EQUIP IND CHIMIQUES S P E I C
Original Assignee
EQUIP IND CHIMIQUES S P E I C
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 EQUIP IND CHIMIQUES S P E I C filed Critical EQUIP IND CHIMIQUES S P E I C
Publication of GB802384A publication Critical patent/GB802384A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/0205—Separation of sulfur from liquids, e.g. by coalescence

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

Sulphur is extracted from an aqueous suspension thereof by adding a water-insoluble liquid of density greater than that of the aqueous suspending medium to the aqueous suspension and subjecting the two liquids to centrifugal separation. The water-insoluble liquid may be a non-solvent for sulphur, or a solvent therefor either in the cold, e.g. carbon disulphide, or when heated, e.g. 1 : 2-dichloroethane, 1 : 2- or 1 : 3-dichloropropane, trichloroethylene, carbon tetrachloride, and perchloroethylene, and chlorobenzenes, chlorotoluenes, and chloroxylenes, including mixtures containing dichloro, trichloro, and tetrachloro isomers. A wetting agent may be added to the aqueous suspension. Other suspended material may be separated from the sulphur, when using an extracting liquid which is a non-solvent for the said material, by a fractional separation in the cold in a single centrifuge when the liquid is a solvent for sulphur in the cold, or a single separation in the cold in one centrifuge followed by a single separation at an elevated temperature in a second centrifuge when the liquid is a solvent for sulphur only at an elevated temperature. The sulphur may be recovered from the extracting liquid by ordinary or steam distillation of the solvent. Solvent may similarly be removed from admixture with separated impurities. The aqueous suspension may be produced by the treatment of hydrogen sulphide-containing gas with an aqueous solution of a ferric salt. After extraction the aqueous suspension may be used for the further treatment of hydrogen sulphide-containing gas.
GB14966/56A 1955-05-18 1956-05-14 Improvements in or relating to the separation of sulphur from its suspension in aqueous liquids Expired GB802384A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1076644X 1955-05-18

Publications (1)

Publication Number Publication Date
GB802384A true GB802384A (en) 1958-10-01

Family

ID=9607723

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14966/56A Expired GB802384A (en) 1955-05-18 1956-05-14 Improvements in or relating to the separation of sulphur from its suspension in aqueous liquids

Country Status (4)

Country Link
DE (1) DE1076644B (en)
FR (1) FR1130266A (en)
GB (1) GB802384A (en)
NL (2) NL111343C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975508A (en) * 1975-02-11 1976-08-17 J. F. Pritchard And Company Method of prevention and removal of sulfur deposits from H2 S absorption equipment
US4243648A (en) * 1979-06-20 1981-01-06 Union Oil Company Of California Method for removing hydrogen sulfide from gas streams
US5049370A (en) * 1989-09-26 1991-09-17 Ultraclean Incorporated Process and apparatus for purifying elemental sulfur carried in an aqueous cake

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE627378C (en) * 1933-05-31 1936-03-14 I G Farbenindustrie Akt Ges Process for the production of pure, anhydrous sulfur

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975508A (en) * 1975-02-11 1976-08-17 J. F. Pritchard And Company Method of prevention and removal of sulfur deposits from H2 S absorption equipment
US4243648A (en) * 1979-06-20 1981-01-06 Union Oil Company Of California Method for removing hydrogen sulfide from gas streams
US5049370A (en) * 1989-09-26 1991-09-17 Ultraclean Incorporated Process and apparatus for purifying elemental sulfur carried in an aqueous cake
WO1992014532A1 (en) * 1989-09-26 1992-09-03 Ultraclean Incorporated Process and apparatus for purifying elemental sulfur carried in an aqueous cake

Also Published As

Publication number Publication date
NL111343C (en)
DE1076644B (en) 1960-03-03
FR1130266A (en) 1957-02-04
NL207179A (en)

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