BR9800554A - Processo para preparação de grânulos de cianuretos de metal alcalino e de cianuretos de metal alcalino-terrosos e de grânulos de cianuretos de metal alcalinos de alta pure4za assim obtidos. - Google Patents

Processo para preparação de grânulos de cianuretos de metal alcalino e de cianuretos de metal alcalino-terrosos e de grânulos de cianuretos de metal alcalinos de alta pure4za assim obtidos.

Info

Publication number
BR9800554A
BR9800554A BR9800554-5A BR9800554A BR9800554A BR 9800554 A BR9800554 A BR 9800554A BR 9800554 A BR9800554 A BR 9800554A BR 9800554 A BR9800554 A BR 9800554A
Authority
BR
Brazil
Prior art keywords
granules
alkali metal
metal cyanides
alkaline earth
gas
Prior art date
Application number
BR9800554-5A
Other languages
English (en)
Inventor
Ruediger Schuette
Hans Christian Alt
Catrin Becker-Balfanz
Manfred Sauer
Lukas Von Hippel
Oliver Feuer
Juergen Loroesch
Original Assignee
Degussa
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 Degussa filed Critical Degussa
Publication of BR9800554A publication Critical patent/BR9800554A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/08—Simple or complex cyanides of metals
    • C01C3/10—Simple alkali metal cyanides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/08—Simple or complex cyanides of metals
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/90—Other properties not specified above
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treating Waste Gases (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

Patente de Invenção: <B>"PROCESSO PARA PREPARAçãO DE GR‰NULOS DE CIANURETO DE METAL ALCALINO E DE CIANURETOS DE METAL ALCALINO-TERROSOS E DE GR‰NULOS DE CIANURETOS DE METAL ALCALINOS DE ALTA PUREZA ASSIM OBTIDOS"<D>. A invenção refere-se a um processo para a preparação direta de grânulos de cianureto de metal alcalino e de grânulos de cianureto de metal alcalino-terroso a partir de um gás contendo HCN e uma solução aquosa ou suspensão aquosa de um hidróxido de metal alcalino ou de um hidróxido de metal alcalino-terroso. A reação é executada em um reator para granulação por pulverização em um leito fluidificado, onde a solução ou suspensão de hidróxido é pulverizada em grânulos de sementes do cianureto sendo preparado e ao mesmo tempo um gás contendo cianureto de hidrogênio é fornecido ao reator e a água é evaporada por meio de um gás fludificante. O gás fluidificante preferido é vapor. Os gases de reação do processo BMA ou Andrussow pode ser resfriado com água e a mistura de gases usada como gás fludificante. Usando-se um gás contendo HCN e livre de CO~ 2~, grânulos de cianureto de metal alcalino com uma combinação de propriedades importantes, inclusive uma concentração conjunta de carbonato de metal alcalino e formiato de metal alcalino de menos que 0,4% em peso são obtidos.
BR9800554-5A 1997-02-05 1998-02-04 Processo para preparação de grânulos de cianuretos de metal alcalino e de cianuretos de metal alcalino-terrosos e de grânulos de cianuretos de metal alcalinos de alta pure4za assim obtidos. BR9800554A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19704180A DE19704180C1 (de) 1997-02-05 1997-02-05 Verfahren zur Herstellung von Alkalicyanid- und Erdalkalicyanid-Granulaten und hierbei erhältliche Alkalicyanid-Granulate hoher Reinheit

Publications (1)

Publication Number Publication Date
BR9800554A true BR9800554A (pt) 1999-09-28

Family

ID=7819283

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9800554-5A BR9800554A (pt) 1997-02-05 1998-02-04 Processo para preparação de grânulos de cianuretos de metal alcalino e de cianuretos de metal alcalino-terrosos e de grânulos de cianuretos de metal alcalinos de alta pure4za assim obtidos.

Country Status (16)

Country Link
US (1) US5958588A (pt)
EP (1) EP0857689B1 (pt)
JP (1) JP3537656B2 (pt)
KR (1) KR100422264B1 (pt)
CN (1) CN1176021C (pt)
AP (1) AP786A (pt)
AU (1) AU721518B2 (pt)
BR (1) BR9800554A (pt)
CA (1) CA2228809A1 (pt)
CZ (1) CZ28998A3 (pt)
DE (2) DE19704180C1 (pt)
ES (1) ES2137788T3 (pt)
RU (1) RU2201895C2 (pt)
SK (1) SK14398A3 (pt)
TW (1) TW371649B (pt)
ZA (1) ZA98908B (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10006862A1 (de) * 2000-02-16 2001-09-06 Degussa Verfahren zur Herstellung von Formlingen anorganischer Cyanide und nach dem Verfahren erhältliche Produkte
DE10127240B4 (de) * 2001-05-22 2005-05-12 Hüttlin, Herbert, Dr.h.c. Vorrichtung zum Behandeln von partikelförmigem Gut
DE10150325A1 (de) 2001-10-15 2003-04-24 Degussa Verfahren zur Herstellung oder Beschichtung von Granulaten, Vorrichtung zur Durchführung des Verfahrens und hiernach erhältliche Granulate
US8894961B2 (en) 2009-05-22 2014-11-25 E I Du Pont De Nemours And Company Sodium cyanide process
DE102011075595A1 (de) * 2011-05-10 2012-11-15 Evonik Degussa Gmbh Verfahren zur Herstellung von Kohlefasern
CN102502708B (zh) * 2011-10-21 2013-11-13 重庆紫光天化蛋氨酸有限责任公司 一种高纯度、高收率的碱金属或碱土金属氰化物的制备方法
DE102012220341A1 (de) 2012-11-08 2014-05-08 Evonik Industries Ag Kohlenstofffaserherstellung mit verbesserter Blausäuregewinnung
DE102015211233A1 (de) * 2015-06-18 2016-12-22 Epc Engineering Consulting Gmbh Effizientes Verfahren zum Entgiften von cyanidhaltigen Abgasen und Abwässern in einem Verfahren zur Herstellung von Alkalimetallcyaniden
DE102015211231A1 (de) * 2015-06-18 2016-12-22 Epc Engineering Consulting Gmbh Weiterentwickelte Anlage zur Herstellung von Natriumcyanid
DE102017201182A1 (de) * 2017-01-25 2018-07-26 Thyssenkrupp Ag Verfahren und Anlage zur Wärmerückgewinnung bei der Fließbettgranulation
CN113015699A (zh) * 2018-09-14 2021-06-22 博特化工装置股份公司 生产苛性钠颗粒的方法和装置
CN109603279B (zh) * 2019-02-22 2021-12-24 高云芝 一种升降温分段拦截提取物的过滤机组
CN110470789B (zh) * 2019-08-26 2022-07-05 四川达兴能源股份有限公司 一种焦炉煤气中氰化氢的测定方法
WO2022015717A1 (en) * 2020-07-14 2022-01-20 Cyanco Corporation Improved alkali metal cyanide production
CN115364777B (zh) * 2020-12-24 2023-09-08 内蒙古华镒环境工程有限公司 铅银渣回收方法
CN114857578B (zh) * 2022-05-31 2024-10-29 邹平县宏旭热电有限公司 一种改善四角切圆锅炉火焰中心偏斜的热态研究方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52110300A (en) * 1976-03-12 1977-09-16 Nippon Soda Co Ltd Production of high purity alkali cyanate
US4394522A (en) * 1981-06-01 1983-07-19 Mobay Chemical Corporation Catalytic hydrogenation of di(4-aminophenyl)methane
DE3832883A1 (de) * 1988-09-28 1990-03-29 Degussa Verfahren zur herstellung von alkalicyaniden
DE4240318A1 (de) * 1992-12-01 1994-06-09 Glatt Ingtech Gmbh Verfahren zur Herstellung von festem Natriumcyanid
DE4240576C2 (de) * 1992-12-04 1996-04-18 Degussa Alkalicyanid-Granulate und Verfahren zu ihrer Herstellung

Also Published As

Publication number Publication date
EP0857689B1 (de) 1999-08-25
ZA98908B (en) 1998-08-04
JP3537656B2 (ja) 2004-06-14
KR100422264B1 (ko) 2004-05-27
AU5293098A (en) 1998-08-13
CN1176021C (zh) 2004-11-17
JPH10310424A (ja) 1998-11-24
ES2137788T3 (es) 1999-12-16
CZ28998A3 (cs) 1998-08-12
SK14398A3 (en) 1998-08-05
AP786A (en) 1999-11-26
TW371649B (en) 1999-10-11
KR19980071088A (ko) 1998-10-26
RU2201895C2 (ru) 2003-04-10
DE59800022D1 (de) 1999-09-30
US5958588A (en) 1999-09-28
EP0857689A1 (de) 1998-08-12
CA2228809A1 (en) 1998-08-05
AU721518B2 (en) 2000-07-06
DE19704180C1 (de) 1998-08-20
AP9801197A0 (en) 1998-03-31
CN1190080A (zh) 1998-08-12

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