GB1321475A - Treatment of an aqueous stream - Google Patents

Treatment of an aqueous stream

Info

Publication number
GB1321475A
GB1321475A GB1321475DA GB1321475A GB 1321475 A GB1321475 A GB 1321475A GB 1321475D A GB1321475D A GB 1321475DA GB 1321475 A GB1321475 A GB 1321475A
Authority
GB
United Kingdom
Prior art keywords
sulphide
effluent stream
stream
sulphur
aqueous
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
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.)
Universal Oil Products Co
Original Assignee
Universal Oil Products 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 Universal Oil Products Co filed Critical Universal Oil Products Co
Publication of GB1321475A publication Critical patent/GB1321475A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00Sulfur; Compounds thereof
    • C01B17/02Preparation of sulfur; Purification
    • C01B17/06Preparation of sulfur; Purification from non-gaseous sulfides or materials containing such sulfides, e.g. ores

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

1321475 Sulphur removal from aqueous streams UNIVERSAL OIL PRODUCTS CO 27 Oct 1970 50888/70 Heading C1A An aqueous stream containing a watersoluble sulphide compound is treated by (a) contacting the stream and O 2 in an amount less than 0À5 moles of O 2 per mole of sulphide compound with a first solid oxidizing catalyst at a pressure of 1À1-3 atm. absolute (1-30 p.s.i.g.) and a temperature of 24-79‹ C. to form an effluent stream containing a watersoluble polysulphide; (b) contacting the effluent stream and O 2 in an amount less than the total amount utilized in step (a), with a second solid oxidizing catalyst at a temperature greater than m.p. of sulphur and a pressure sufficient to maintain at least a portion of the first effluent stream in liquid phase, effective to form an effluent stream comprising a mixture of liquid sulphur and a treated aqueous stream; and then, (c) separating the liquid sulphur from the effluent stream to produce an aqueous stream substantially free of sulphide compound. The sulphide compound may be NH 4 S<SP>x</SP>, NH 4 HS, an alkali metal sulphide, an alkali metal hydrosulphide, an alkaline earth metal sulphide or an alkaline earth metal hydrosulphide. The oxidizing catalysts may be a metallic phthalocyanine sulphonate e.g. cobalt phthalocyanine monosulphate combined with an activated carbon carrier material. The catalyst may be an iron group metallic sulphide, e.g. NiS. The carrier material may be alumina or activated carbon. The conditions utilized in step (b) may be a temperature of about 250‹ F. and a pressure of about 90 p.s.i.g.
GB1321475D 1970-10-27 1970-10-27 Treatment of an aqueous stream Expired GB1321475A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5088870 1970-10-27

Publications (1)

Publication Number Publication Date
GB1321475A true GB1321475A (en) 1973-06-27

Family

ID=10457794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1321475D Expired GB1321475A (en) 1970-10-27 1970-10-27 Treatment of an aqueous stream

Country Status (1)

Country Link
GB (1) GB1321475A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2742990C1 (en) * 2020-05-12 2021-02-12 Открытое акционерное общество "Научно-исследовательский и проектный институт обогащения и механической обработки полезных ископаемых "Уралмеханобр" (ОАО "Уралмеханобр") Method for producing calcium hydrosulfide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2742990C1 (en) * 2020-05-12 2021-02-12 Открытое акционерное общество "Научно-исследовательский и проектный институт обогащения и механической обработки полезных ископаемых "Уралмеханобр" (ОАО "Уралмеханобр") Method for producing calcium hydrosulfide

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee