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BRPI0404690A - molding or shaping processes by extrusion of a niobium oxide and preparation of a hydrolyzed and amorphous niobium oxide and use of a niobium oxide in extruded form - Google Patents

molding or shaping processes by extrusion of a niobium oxide and preparation of a hydrolyzed and amorphous niobium oxide and use of a niobium oxide in extruded form

Info

Publication number
BRPI0404690A
BRPI0404690A BRPI0404690-0A BRPI0404690A BRPI0404690A BR PI0404690 A BRPI0404690 A BR PI0404690A BR PI0404690 A BRPI0404690 A BR PI0404690A BR PI0404690 A BRPI0404690 A BR PI0404690A
Authority
BR
Brazil
Prior art keywords
niobium oxide
hydrolyzed
molding
amorphous
extrusion
Prior art date
Application number
BRPI0404690-0A
Other languages
Portuguese (pt)
Inventor
Antonio Telhado Pereira
Kensley Alves De Oliveira
Robson De Souza Monteiro
Jose Augusto Jorge Rodrigues
Waldinei Rosa Monteiro
Marisa Aparecida Zacharias
Original Assignee
Cbmm Sa
Funcate Fundacao De Ciencia Ap
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 Cbmm Sa, Funcate Fundacao De Ciencia Ap filed Critical Cbmm Sa
Priority to BRPI0404690-0A priority Critical patent/BRPI0404690A/en
Priority to PCT/BR2005/000220 priority patent/WO2006045169A2/en
Publication of BRPI0404690A publication Critical patent/BRPI0404690A/en

Links

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/495—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates
    • 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
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/20—Vanadium, niobium or tantalum
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G33/00—Compounds of niobium
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/624—Sol-gel processing
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62655—Drying, e.g. freeze-drying, spray-drying, microwave or supercritical drying
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
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    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0022—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof obtained by a chemical conversion or reaction other than those relating to the setting or hardening of cement-like material or to the formation of a sol or a gel, e.g. by carbonising or pyrolysing preformed cellular materials based on polymers, organo-metallic or organo-silicon precursors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
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    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0081—Uses not provided for elsewhere in C04B2111/00 as catalysts or catalyst carriers
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3251—Niobium oxides, niobates, tantalum oxides, tantalates, or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/449—Organic acids, e.g. EDTA, citrate, acetate, oxalate
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    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
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    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6021—Extrusion moulding
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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Catalysts (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

"PROCESSOS DE MOLDAGEM OU CONFORMAçãO POR EXTRUSãO DE UM óXIDO DE NIóBIO E DE PREPARAçãO DE UM óXIDO DE NIóBIO HIDROLISADO E AMORFO E USO DE UM óXIDO DE NIóBIO NA FORMA EXTRUDADA". A invenção se refere a um processo de moldagem ou conformação por extrusão de um óxido de nióbio, em que o perfil extrudado é obtido através da secagem e calcinação, nas condições apropriadas, de um perfil extrudado verde, que é obtido pela moldagem por extrusão de um gel viscoso de óxido de nióbio. A invenção se refere ainda a um processo de preparação de um óxido de nióbio hidrolisado e amorfo em que o óxido de nióbio hidrolisado e amorfo é sintetizado a partir de precursores de nióbio, orgânicos ou inorgânicos. Por fim a invenção trata de usos de um óxido de nióbio na forma extrudada;"Processes for molding or shaping by extruding a niobium oxide and preparing a hydrolyzed niobium oxide and shaping and using a niobium oxide in the extruded form". The invention relates to a molding or extrusion molding process of a niobium oxide, wherein the extruded profile is obtained by drying and calcining, under appropriate conditions, a green extruded profile, which is obtained by extrusion molding. a viscous niobium oxide gel. The invention further relates to a process for preparing an amorphous hydrolyzed niobium oxide wherein the hydrolyzed amorphous niobium oxide is synthesized from organic or inorganic niobium precursors. Finally the invention deals with uses of a niobium oxide in extruded form;

BRPI0404690-0A 2004-10-28 2004-10-28 molding or shaping processes by extrusion of a niobium oxide and preparation of a hydrolyzed and amorphous niobium oxide and use of a niobium oxide in extruded form BRPI0404690A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BRPI0404690-0A BRPI0404690A (en) 2004-10-28 2004-10-28 molding or shaping processes by extrusion of a niobium oxide and preparation of a hydrolyzed and amorphous niobium oxide and use of a niobium oxide in extruded form
PCT/BR2005/000220 WO2006045169A2 (en) 2004-10-28 2005-08-21 Processes for niobium oxide extrusion casting or conformation and preparation of a hydrolized and amorphous niobium oxide and use of a niobium oxide in the extruded form

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0404690-0A BRPI0404690A (en) 2004-10-28 2004-10-28 molding or shaping processes by extrusion of a niobium oxide and preparation of a hydrolyzed and amorphous niobium oxide and use of a niobium oxide in extruded form

Publications (1)

Publication Number Publication Date
BRPI0404690A true BRPI0404690A (en) 2006-06-06

Family

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BRPI0404690-0A BRPI0404690A (en) 2004-10-28 2004-10-28 molding or shaping processes by extrusion of a niobium oxide and preparation of a hydrolyzed and amorphous niobium oxide and use of a niobium oxide in extruded form

Country Status (2)

Country Link
BR (1) BRPI0404690A (en)
WO (1) WO2006045169A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0702373A2 (en) * 2007-05-30 2009-01-20 Petroleo Brasileiro Sa Process for the production of biodiesel from vegetable oils and fats using heterogeneous catalysts
JP5578504B2 (en) * 2009-04-09 2014-08-27 堺化学工業株式会社 Process for producing alkali metal niobate particles and alkali metal niobate particles
CN109400154B (en) * 2018-11-09 2021-06-04 桂林电子科技大学 Double-niobium-source alkali metal niobate micro-nanowire material and preparation method thereof
CN109437922A (en) * 2018-12-10 2019-03-08 佛山市古粤新型材料有限公司 Strengthen the degumming agent and preparation method thereof of ceramic raw material mobility
CN115379893A (en) * 2020-04-14 2022-11-22 凯洛格·布朗及鲁特有限公司 Catalyst production method for isomerization of C5-C12 paraffins
CN117599772B (en) * 2023-03-14 2024-10-18 南阳师范学院 Amorphous/crystalline phase coexisting photocatalyst and preparation method and application thereof
CN116462410B (en) * 2023-04-20 2024-09-03 清远市简一陶瓷有限公司 Negative ion antibacterial glaze, marble tile and preparation method thereof
CN117185295A (en) * 2023-07-06 2023-12-08 包钢集团矿山研究院（有限责任公司） A one-step preparation method for synthesizing niobium carbide nanomaterials

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
CA1144376A (en) * 1980-06-02 1983-04-12 Gilles Legault Leaching process for niobium and (or) tantalum minerals
DE3249354A1 (en) * 1982-11-12 1984-05-17 GfE Gesellschaft für Elektrometallurgie mbH, 4000 Düsseldorf Process for the preparation of a niobium solution for the preparation of high-purity niobium oxide
US6756335B2 (en) * 2000-11-20 2004-06-29 Kyocera Corporation Dielectric porcelain and resonator using the same
US6797220B2 (en) * 2000-12-04 2004-09-28 Advanced Ceramics Research, Inc. Methods for preparation of three-dimensional bodies

Also Published As

Publication number Publication date
WO2006045169A2 (en) 2006-05-04
WO2006045169A3 (en) 2007-03-01

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