BR9910711A - Zinc aluminate, precursor composition of a zinc aluminate, processes for preparing an aluminate and treating gases, catalytic system and use of an aluminate - Google Patents

Zinc aluminate, precursor composition of a zinc aluminate, processes for preparing an aluminate and treating gases, catalytic system and use of an aluminate

Info

Publication number
BR9910711A
BR9910711A BR9910711-2A BR9910711A BR9910711A BR 9910711 A BR9910711 A BR 9910711A BR 9910711 A BR9910711 A BR 9910711A BR 9910711 A BR9910711 A BR 9910711A
Authority
BR
Brazil
Prior art keywords
aluminate
zinc
preparing
precursor composition
processes
Prior art date
Application number
BR9910711-2A
Other languages
Portuguese (pt)
Inventor
Catharine Hedouin
Thierry Seguelong
Original Assignee
Rhodia Chimie Sa
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 Rhodia Chimie Sa filed Critical Rhodia Chimie Sa
Publication of BR9910711A publication Critical patent/BR9910711A/en

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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/208—Hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/202—Alkali metals
    • B01D2255/2025—Lithium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20707—Titanium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20792—Zinc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2092—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/30—Silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

"ALUMINATO DE ZINCO, COMPOSIçãO PRECURSORA DE UM ALUMINATO DE ZINCO, PROCESSOS DE PREPARAçãO DE UM ALUMINATO E DE TRATAMENTO DE GASES, SISTEMA CATALìTICO E UTILIZAçãO DE UM ALUMINATO". A presente invenção refere-se a um aluminato de zinco que é caracterizado pelo fato de que ele apresenta após calcinação a 800°C, 8 horas, uma superfície específica de pelo menos 85 m²/g. A invenção refere-se também a uma composição precursora deste aluminato. O processo de preparação do aluminato e da composição compreende as etapas a seguir: põe-se em presença em um meio solvente um sal, um sol ou um alcóxido de zinco e um alcóxido de alumínio; efetua-se uma hidrólise da mistura assim formada por adição de água em uma quantidade em excesso em relação ao alcóxido de alumínio; recupera-se o precipitado formado e seca-se o mesmo eventualmente, obtendo-se desse modo a composição precursora; se for o caso, calcina-se o dito precipitado, obtendo-se assim o aluminato. Enfim, a invenção refere-se à utilização do aluminato em um processo de tratamento de gases de escape de automóveis."ZINC ALUMINATE, PRECURSIVE COMPOSITION OF A ZINC ALUMINATE, PROCESSES FOR PREPARING AN ALUMINATE AND TREATING GASES, CATALYTIC SYSTEM AND USE OF AN ALUMINATE". The present invention relates to a zinc aluminate which is characterized by the fact that after calcination at 800 ° C, 8 hours, it has a specific surface of at least 85 m² / g. The invention also relates to a precursor composition of this aluminate. The process of preparing the aluminate and the composition comprises the following steps: a salt, a sol or a zinc alkoxide and an aluminum alkoxide are placed in a solvent medium; the mixture thus formed is hydrolysed by adding excess water to the aluminum alkoxide; the formed precipitate is recovered and eventually dried, thereby obtaining the precursor composition; if so, the said precipitate is calcined, thus obtaining the aluminate. Finally, the invention relates to the use of aluminate in a car exhaust gas treatment process.

BR9910711-2A 1998-05-26 1999-05-21 Zinc aluminate, precursor composition of a zinc aluminate, processes for preparing an aluminate and treating gases, catalytic system and use of an aluminate BR9910711A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9806610A FR2779071B1 (en) 1998-05-26 1998-05-26 ZINC ALUMINATE WITH HIGH SPECIFIC SURFACE, PREPARATION METHOD THEREOF AND USE THEREOF IN THE TREATMENT OF AUTOMOTIVE EXHAUST GASES
PCT/FR1999/001210 WO1999061150A1 (en) 1998-05-26 1999-05-21 Zinc aluminate with high specific surface area, preparation method and use for treating motor vehicle exhaust gases

Publications (1)

Publication Number Publication Date
BR9910711A true BR9910711A (en) 2001-01-30

Family

ID=9526717

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9910711-2A BR9910711A (en) 1998-05-26 1999-05-21 Zinc aluminate, precursor composition of a zinc aluminate, processes for preparing an aluminate and treating gases, catalytic system and use of an aluminate

Country Status (10)

Country Link
EP (1) EP1098701A1 (en)
JP (1) JP2002516245A (en)
KR (1) KR100392168B1 (en)
CN (1) CN1145524C (en)
BR (1) BR9910711A (en)
CA (1) CA2333426A1 (en)
FR (1) FR2779071B1 (en)
NO (1) NO20005931L (en)
WO (1) WO1999061150A1 (en)
ZA (1) ZA200005822B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19960867A1 (en) * 1999-12-17 2001-06-28 Studiengesellschaft Kohle Mbh Synthesis of transition-metal aluminates with high specific surface areas by crystallization from transition metal-containing aluminosilicates
DE102004041295A1 (en) * 2004-08-25 2006-03-09 Beiersdorf Ag Preparation for fixing keratin fibers with a combination of fixing polymers and cellulose derivatives
JP5112078B2 (en) * 2005-01-06 2013-01-09 リサーチ・トライアングル・インスティチュート Zinc oxide-based adsorbent and methods for making and using the same
CN101555029B (en) * 2008-04-09 2011-05-04 清华大学 Method for preparing zinc aluminate nano-material
EP2141118B1 (en) * 2008-07-03 2013-08-07 Haldor Topsoe A/S Chromium-free water gas shift catalyst
CN102583467B (en) * 2012-02-24 2014-01-22 山东大学 Method for using hydrotalcite-like substance with low zinc-aluminum molar ratio as precursor to manufacture zinc-aluminum spinel

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3904553A (en) * 1973-08-20 1975-09-09 Corning Glass Works Thermally stable composite base metal oxide catalysts
JPH07149519A (en) * 1991-12-24 1995-06-13 Kawaken Fine Chem Co Ltd Production of spinel-type double oxide
JP2851773B2 (en) * 1993-09-09 1999-01-27 京セラ株式会社 Oxide catalyst material for removing nitrogen oxides and method for removing nitrogen oxides
FR2718371B1 (en) * 1994-04-08 1996-05-03 Rhone Poulenc Chimie Reduction catalysts for nitrogen oxides based on spinels.
DE4419486C2 (en) * 1994-06-03 1996-09-05 Daimler Benz Ag Catalyst, process for its preparation and use of the catalyst
DE4420932A1 (en) * 1994-06-16 1996-01-11 Basf Ag Spinel catalyst to reduce nitrogen oxide content of exhaust gas
JPH0824648A (en) * 1994-07-22 1996-01-30 Nissan Motor Co Ltd Exhaust gas purifying catalyst and preparation of the sam

Also Published As

Publication number Publication date
CN1302226A (en) 2001-07-04
FR2779071A1 (en) 1999-12-03
JP2002516245A (en) 2002-06-04
CA2333426A1 (en) 1999-12-02
KR20010052401A (en) 2001-06-25
CN1145524C (en) 2004-04-14
KR100392168B1 (en) 2003-07-22
WO1999061150A1 (en) 1999-12-02
ZA200005822B (en) 2002-05-16
EP1098701A1 (en) 2001-05-16
FR2779071B1 (en) 2000-08-18
NO20005931D0 (en) 2000-11-23
NO20005931L (en) 2001-01-18

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A, 6A, 7A E 8A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1911 DE 21/08/2007.