CA1006329A - Process for oxidizing hydrocyanic acid - Google Patents

Process for oxidizing hydrocyanic acid

Info

Publication number
CA1006329A
CA1006329A CA198,399A CA198399A CA1006329A CA 1006329 A CA1006329 A CA 1006329A CA 198399 A CA198399 A CA 198399A CA 1006329 A CA1006329 A CA 1006329A
Authority
CA
Canada
Prior art keywords
oxidizing
hydrocyanic acid
hydrocyanic
acid
oxidizing hydrocyanic
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
CA198,399A
Other languages
English (en)
Inventor
Tooru Ide
Takeshi Yamashita
Sueo Kamada
Takao Kitamura
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.)
Asahi Kasei Corp
Original Assignee
Asahi Kasei Kogyo KK
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 JP47110233A external-priority patent/JPS5243199B2/ja
Priority claimed from JP1928973A external-priority patent/JPS5313600B2/ja
Application filed by Asahi Kasei Kogyo KK filed Critical Asahi Kasei Kogyo KK
Application granted granted Critical
Publication of CA1006329A publication Critical patent/CA1006329A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/10—Settling tanks with multiple outlets for the separated liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/10—Settling tanks with multiple outlets for the separated liquids
    • B01D21/12—Settling tanks with multiple outlets for the separated liquids with moving scrapers
    • B01D21/14—Settling tanks with multiple outlets for the separated liquids with moving scrapers with rotating scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/10—Settling tanks with multiple outlets for the separated liquids
    • B01D21/16—Settling tanks with multiple outlets for the separated liquids provided with flocculating compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2433—Discharge mechanisms for floating particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2488—Feed or discharge mechanisms for settling tanks bringing about a partial recirculation of the liquid, e.g. for introducing chemical aids
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/003—Cyanogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
CA198,399A 1972-11-06 1974-04-29 Process for oxidizing hydrocyanic acid Expired CA1006329A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP47110233A JPS5243199B2 (de) 1972-11-06 1972-11-06
JP1928973A JPS5313600B2 (de) 1973-02-19 1973-02-19
NL7405745.A NL161730C (nl) 1972-11-06 1974-04-29 Werkwijze voor het bereiden van dicyaan door oxydatie van waterstofcyanide in een waterige oplossing.

Publications (1)

Publication Number Publication Date
CA1006329A true CA1006329A (en) 1977-03-08

Family

ID=27282571

Family Applications (1)

Application Number Title Priority Date Filing Date
CA198,399A Expired CA1006329A (en) 1972-11-06 1974-04-29 Process for oxidizing hydrocyanic acid

Country Status (7)

Country Link
US (1) US3949061A (de)
BE (1) BE814449A (de)
CA (1) CA1006329A (de)
DE (1) DE2355040C3 (de)
FR (1) FR2268750B1 (de)
GB (1) GB1434337A (de)
NL (1) NL161730C (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA017828B1 (ru) * 2008-10-22 2013-03-29 Лонца Аг Способ удаления цианистого водорода из этандинитрила
EP2184261A1 (de) * 2008-11-10 2010-05-12 Lonza Ltd. Verfahren zur Herstellung von Dicyan aus Cyanwasserstoff
CZ303646B6 (cs) 2011-12-13 2013-01-23 Masarykova Univerzita Zpusob výroby ethandinitrilu oxidací kyanovodíku

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953435A (en) * 1958-12-12 1960-09-20 Pure Oil Co Method of preparing cyanogen
DE1163302B (de) * 1960-03-15 1964-02-20 Dr Emanuel Pfeil Verfahren zur Herstellung von Dicyan
GB1084477A (en) * 1965-08-02 1967-09-20 Sagami Chem Res Improvements in or relating to the preparation of cyanogen
US3615192A (en) * 1969-08-01 1971-10-26 Union Oil Co Oxidation of hydrogen cyanide to cyanogen in a liquid medium utilizing a copper catalyst
US3630671A (en) * 1969-08-01 1971-12-28 Union Oil Co Oxidation of hydrogen cyanide to cyanogen in a liquid medium utilizing a group viii noble metal catalyst in complex association with a biphyllic ligand
US3769388A (en) * 1971-07-28 1973-10-30 Union Oil Co Oxidation of hydrogen cyanide to cyanogen in a liquid medium containing a soluble nitrate salt or nitric acid

Also Published As

Publication number Publication date
GB1434337A (en) 1976-05-05
DE2355040C3 (de) 1978-06-22
US3949061A (en) 1976-04-06
NL161730B (nl) 1979-10-15
NL7405745A (nl) 1975-10-31
NL161730C (nl) 1980-03-17
FR2268750A1 (de) 1975-11-21
DE2355040A1 (de) 1974-05-30
FR2268750B1 (de) 1977-06-24
BE814449A (fr) 1974-08-16
DE2355040B2 (de) 1977-10-27

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