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BR9607683A - Processo de precipitação de carbonato de cálcio - Google Patents

Processo de precipitação de carbonato de cálcio

Info

Publication number
BR9607683A
BR9607683A BR9607683-6A BR9607683A BR9607683A BR 9607683 A BR9607683 A BR 9607683A BR 9607683 A BR9607683 A BR 9607683A BR 9607683 A BR9607683 A BR 9607683A
Authority
BR
Brazil
Prior art keywords
solution
ammonium
nitrate
calcium carbonate
calcium
Prior art date
Application number
BR9607683-6A
Other languages
English (en)
Inventor
James Ian Ramsay
Original Assignee
Pretoria Portland Cement
John Edward Gomersall
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25584884&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9607683(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Pretoria Portland Cement, John Edward Gomersall filed Critical Pretoria Portland Cement
Publication of BR9607683A publication Critical patent/BR9607683A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • C01F11/181—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C01P2004/52—Particles with a specific particle size distribution highly monodisperse size distribution
    • 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
    • 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
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Gas Separation By Absorption (AREA)
  • Treating Waste Gases (AREA)

Abstract

Patente de Invenção: <B>"PROCESSO DE PRECIPITAçãO DE CARBONATO DE CáLCIO"<D>. Um processo para a produção de carbonato de cálcio precipitado por reação de uma solução aquosa de nitrato de cálcio [Ca(NO~ 3~)~ 2~] com uma solução aquosa de carbonato de amónio [(NH~ 4~)~ 2~CO~ 3~] e deixando que o carbonato de cálcio precipite da mistura resultante que contém nitrato [NH~ 4~NO~ 3~] no licor-mãe, o processo sendo caracterizado pelo fato de que [i] a solução de nitrato de cálcio [Ca(NO~ 3~)~ 2~] utilizada nos processos é preparada apagando a cal [CaO] em água na presença de nitrato de amónio [NH~ 4~NO~ 3~] para formar o nitrato de cálcio [Ca(NO~ 3~)~ 2~] e hidróxido de amónio [NH~ 4~OH] em solução, filtrando a solução para torná-la isenta de sólidos e aquecendo o filtrado para dissociar o hidróxido de amónio [NH~ 4~OH] e para retirar amónio gasosa [NH~ 3~] da solução; [ii] a solução de carbonato de amónio [(NH~ 4~)~ 2~CO~ 3~] utilizada é preparada por absorção de amónio gasosa [NH~ 3~] e dióxido de carbono gasoso em água, a amónia gasosa sendo preferivelmente derivada da etapa em [i] acima em que a solução de Ca(NO~ 3~)~ 2~ é aquecida; e [iii] o nitrato de amónio usado é derivado da fase de precipitação durante a qual o carbonato de cálcio é precipitado do licor-mãe contendo nitrato de amónio.
BR9607683-6A 1995-03-02 1996-03-01 Processo de precipitação de carbonato de cálcio BR9607683A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA951727 1995-03-02
PCT/GB1996/000488 WO1996026902A1 (en) 1995-03-02 1996-03-01 Calcium carbonate precipitation method

Publications (1)

Publication Number Publication Date
BR9607683A true BR9607683A (pt) 1999-11-30

Family

ID=25584884

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9607683-6A BR9607683A (pt) 1995-03-02 1996-03-01 Processo de precipitação de carbonato de cálcio

Country Status (14)

Country Link
US (1) US6036933A (pt)
EP (1) EP0812300B1 (pt)
JP (1) JPH11500998A (pt)
AP (1) AP663A (pt)
AT (1) ATE174007T1 (pt)
AU (1) AU709774B2 (pt)
BR (1) BR9607683A (pt)
CA (1) CA2214132A1 (pt)
DE (1) DE69601082T2 (pt)
DK (1) DK0812300T3 (pt)
ES (1) ES2128161T3 (pt)
NO (1) NO311668B1 (pt)
PL (1) PL185259B1 (pt)
WO (1) WO1996026902A1 (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI116573B (fi) * 2001-11-28 2005-12-30 M Real Oyj Täyteaine ohuiden pohjapaperien valmistukseen ja menetelmä pohjapaperin valmistamiseksi
US7604787B2 (en) * 2003-05-02 2009-10-20 The Penn State Research Foundation Process for sequestering carbon dioxide and sulfur dioxide
US7198653B2 (en) 2003-07-31 2007-04-03 Delavau Llc Calcium carbonate granulation
US20050089466A1 (en) * 2003-10-27 2005-04-28 Degenova Mark G. Methods and apparatus for producing precipitated calcium carbonate
CN100418885C (zh) * 2004-07-09 2008-09-17 胡志彤 高纯度药用碳酸钙及其制造方法
EP1838618A1 (en) * 2004-12-15 2007-10-03 FUJIFILM Corporation Method for producing carbonates
US9138414B1 (en) 2006-09-15 2015-09-22 Delavau Llc Calcium supplement having enhanced absorption
US8159956B2 (en) * 2008-07-01 2012-04-17 Finisar Corporation Diagnostics for serial communication busses
US8062418B2 (en) * 2009-12-31 2011-11-22 Calera Corporation Methods and compositions using calcium carbonate
US8906156B2 (en) 2009-12-31 2014-12-09 Calera Corporation Cement and concrete with reinforced material
AU2013382938B2 (en) * 2013-03-19 2015-11-05 Colgate-Palmolive Company Two-phase dentifrices
US20150367577A1 (en) * 2014-06-19 2015-12-24 Materialise N.V. Use of multiple beam spot sizes for obtaining improved performance in optical additive manufacturing techniques
CN104817101A (zh) * 2015-04-08 2015-08-05 常熟市宏宇钙化物有限公司 氧化钙粉末的制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535999A (en) * 1945-05-12 1950-12-26 Sylvania Electric Prod Method for producing cathode coating compositions
DE1011861B (de) * 1956-01-20 1957-07-11 Basf Ag Verfahren zur Herstellung von Ammonnitrat und Calciumcarbonat
SE419997B (sv) * 1978-04-14 1981-09-07 Alf Ove Andersson Sett att bereda vitlut vit ett tryck over atmosferstrycket
SU1594140A1 (ru) * 1988-04-15 1990-09-23 Новгородское Производственное Объединение "Азот" Им.50-Летия Великого Октября Способ получени карбоната кальци
DD298372A5 (de) * 1989-11-29 1992-02-20 Bergakademie Freiberg,De Verfahren zur herstellung von besonders als fuellstoff geeigneten calciumcarbonatpulvern aus waessrigen loesungen
CN1055718A (zh) * 1991-06-06 1991-10-30 邹凤祥 氧化镁和碳酸钙的生产方法
CA2090088C (en) * 1992-02-26 1995-07-25 Pierre Marc Fouche Production of purified calcium carbonate
CA2213750A1 (en) * 1995-02-27 1996-09-06 Aeci Limited Production of precipitated calcium carbonate

Also Published As

Publication number Publication date
AP663A (en) 1998-08-19
ATE174007T1 (de) 1998-12-15
NO973998D0 (no) 1997-09-01
US6036933A (en) 2000-03-14
DE69601082T2 (de) 1999-07-29
WO1996026902A1 (en) 1996-09-06
AU709774B2 (en) 1999-09-09
PL322089A1 (en) 1998-01-05
PL185259B1 (pl) 2003-04-30
DK0812300T3 (da) 1999-08-16
EP0812300B1 (en) 1998-12-02
CA2214132A1 (en) 1996-09-06
EP0812300A1 (en) 1997-12-17
DE69601082D1 (de) 1999-01-14
AP9701063A0 (en) 1997-10-31
NO973998L (no) 1997-09-01
ES2128161T3 (es) 1999-05-01
JPH11500998A (ja) 1999-01-26
NO311668B1 (no) 2002-01-02
AU4884996A (en) 1996-09-18

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Free format text: REFERENTE A 9A,10A,11A,12A,13A,14A E 15A ANUIDADE(S).

B24H Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
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B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2606 DE 15-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.