CA1236682A - Methode pour eliminer le cyanure d'hydrogene - Google Patents

Methode pour eliminer le cyanure d'hydrogene

Info

Publication number
CA1236682A
CA1236682A CA000467303A CA467303A CA1236682A CA 1236682 A CA1236682 A CA 1236682A CA 000467303 A CA000467303 A CA 000467303A CA 467303 A CA467303 A CA 467303A CA 1236682 A CA1236682 A CA 1236682A
Authority
CA
Canada
Prior art keywords
solution
ammonium
polysulphide
process according
hydrogen cyanide
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
CA000467303A
Other languages
English (en)
Inventor
Zaida Diaz
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 Canada Ltd
Original Assignee
Shell Canada 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 US06/556,257 external-priority patent/US4508693A/en
Priority claimed from US06/556,256 external-priority patent/US4505881A/en
Application filed by Shell Canada Ltd filed Critical Shell Canada Ltd
Application granted granted Critical
Publication of CA1236682A publication Critical patent/CA1236682A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1418—Recovery of products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1425—Regeneration of liquid absorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1493—Selection of liquid materials for use as absorbents
    • 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
    • C01B17/06—Preparation of sulfur; Purification from non-gaseous sulfides or materials containing such sulfides, e.g. ores
    • 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
    • C01B17/16—Hydrogen sulfides
    • C01B17/165—Preparation from sulfides, oxysulfides or polysulfides
CA000467303A 1983-11-29 1984-11-08 Methode pour eliminer le cyanure d'hydrogene Expired CA1236682A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/556,257 US4508693A (en) 1983-11-29 1983-11-29 Solution removal of HCN from gaseous streams, with pH adjustment of reacted solution and hydrolysis of thiocyanate formed
US556,257 1983-11-29
US556,256 1983-11-29
US06/556,256 US4505881A (en) 1983-11-29 1983-11-29 Ammonium polysulfide removal of HCN from gaseous streams, with subsequent production of NH3, H2 S, and CO2

Publications (1)

Publication Number Publication Date
CA1236682A true CA1236682A (fr) 1988-05-17

Family

ID=27071104

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000467303A Expired CA1236682A (fr) 1983-11-29 1984-11-08 Methode pour eliminer le cyanure d'hydrogene

Country Status (2)

Country Link
CA (1) CA1236682A (fr)
GB (1) GB2150550A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5053380A (en) * 1989-12-21 1991-10-01 Union Carbide Chemicals And Plastics Technology Corporation Cu-al catalyst for hydrogenation
US5008235A (en) * 1989-12-21 1991-04-16 Union Carbide Chemicals And Plastics Technology Corporation Catalysts of Cu-Al-third metal for hydrogenation
US5142067A (en) * 1989-12-21 1992-08-25 Union Carbide Chemicals & Plastics Technology Corporation Hydrogenation with Cu-Al-X catalysts

Also Published As

Publication number Publication date
GB2150550A (en) 1985-07-03
GB8429931D0 (en) 1985-01-03

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Legal Events

Date Code Title Description
MKEX Expiry