BR9106105A - Processo para beneficiar o teor de titania de um minerio ou concentrado titanifero - Google Patents

Processo para beneficiar o teor de titania de um minerio ou concentrado titanifero

Info

Publication number
BR9106105A
BR9106105A BR919106105A BR9106105A BR9106105A BR 9106105 A BR9106105 A BR 9106105A BR 919106105 A BR919106105 A BR 919106105A BR 9106105 A BR9106105 A BR 9106105A BR 9106105 A BR9106105 A BR 9106105A
Authority
BR
Brazil
Prior art keywords
titanifer
mining
concentrate
benefit
titania content
Prior art date
Application number
BR919106105A
Other languages
English (en)
Inventor
Michael John Hollitt
Ian Edward Grey
Brian Anthony O'brien
Original Assignee
Wimmera Ind Minerals Pty Ltd
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=3774530&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9106105(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wimmera Ind Minerals Pty Ltd filed Critical Wimmera Ind Minerals Pty Ltd
Publication of BR9106105A publication Critical patent/BR9106105A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
    • C22B5/14—Dry methods smelting of sulfides or formation of mattes by gases fluidised material
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/065—Nitric acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1204—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 preliminary treatment of ores or scrap to eliminate non- titanium constituents, e.g. iron, without attacking the titanium constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1204—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 preliminary treatment of ores or scrap to eliminate non- titanium constituents, e.g. iron, without attacking the titanium constituent
    • C22B34/1209—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 preliminary treatment of ores or scrap to eliminate non- titanium constituents, e.g. iron, without attacking the titanium constituent by dry processes, e.g. with selective chlorination of iron or with formation of a titanium bearing slag
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1204—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 preliminary treatment of ores or scrap to eliminate non- titanium constituents, e.g. iron, without attacking the titanium constituent
    • C22B34/1213—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 preliminary treatment of ores or scrap to eliminate non- titanium constituents, e.g. iron, without attacking the titanium constituent by wet processes, e.g. using leaching methods or flotation techniques
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1218—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by dry processes
    • C22B34/1231—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by dry processes treatment or purification of titanium containing products obtained by dry processes, e.g. condensation
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching
    • C22B34/124—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using acidic solutions or liquors
    • C22B34/1245—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching using acidic solutions or liquors containing a halogen ion as active agent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BR919106105A 1990-03-02 1991-03-01 Processo para beneficiar o teor de titania de um minerio ou concentrado titanifero BR9106105A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPJ891990 1990-03-02
PCT/AU1991/000069 WO1991013180A1 (en) 1990-03-02 1991-03-01 Production of synthetic rutile

Publications (1)

Publication Number Publication Date
BR9106105A true BR9106105A (pt) 1993-02-24

Family

ID=3774530

Family Applications (1)

Application Number Title Priority Date Filing Date
BR919106105A BR9106105A (pt) 1990-03-02 1991-03-01 Processo para beneficiar o teor de titania de um minerio ou concentrado titanifero

Country Status (13)

Country Link
US (1) US5427749A (pt)
EP (2) EP1217083A3 (pt)
JP (1) JPH06501741A (pt)
KR (1) KR100198697B1 (pt)
AU (2) AU639089B2 (pt)
BR (1) BR9106105A (pt)
CA (1) CA2077441C (pt)
DE (1) DE69133308D1 (pt)
MY (1) MY106150A (pt)
NZ (1) NZ237273A (pt)
RU (1) RU2102510C1 (pt)
WO (1) WO1991013180A1 (pt)
ZA (1) ZA911515B (pt)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5910621A (en) * 1992-07-31 1999-06-08 Rgc Mineral Sands Treatment of titaniferous materials
BR9306829A (pt) * 1992-07-31 1998-12-08 Rgc Mineral Sands Ltd Processos para facilitar a remoção de radionuclídios e de uma ou mais impurezas de material titanífero e para tratar material titanífero contendo ferro
JPH08500393A (ja) * 1992-08-14 1996-01-16 テクノロジカル・リソーシーズ・ピーティーワイ・リミテッド チタン鉄材料の品質改善
DE69415566T2 (de) * 1993-02-23 1999-07-15 Boc Gases Australia Ltd., Chatswood, Neu Sued Wales Verfahren zur Herstellung von synthetischem Rutil
BR9406464A (pt) * 1993-05-07 1996-01-30 Tech Resources Pty Ltd Processo para remover impurezas de um material titanífero
CN1042349C (zh) * 1993-09-07 1999-03-03 技术资源有限公司 提高含钛物料等级的方法
AU690233B2 (en) * 1994-03-08 1998-04-23 Iluka Midwest Limited Leaching of titaniferous materials
WO1995024510A1 (en) * 1994-03-08 1995-09-14 Rgc Mineral Sands Limited Leaching of titaniferous materials
AU717006B2 (en) * 1995-02-10 2000-03-16 Commonwealth Scientific And Industrial Research Organisation Treatment of titanium-containing material
AUPN105195A0 (en) * 1995-02-10 1995-03-09 Commonwealth Scientific And Industrial Research Organisation Treatment of titanium-containing material
US5830420A (en) * 1995-11-21 1998-11-03 Qit-Fer Et Titane Inc. Method to upgrade titania slag and resulting product
CA2182123C (en) * 1996-07-26 1999-10-05 Graham F. Balderson Method for the production of synthetic rutile
AU744752B2 (en) * 1998-04-23 2002-02-28 Outotec Oyj Process of producing synthetic rutile from ilmenite
US6440383B1 (en) 1999-06-24 2002-08-27 Altair Nanomaterials Inc. Processing aqueous titanium chloride solutions to ultrafine titanium dioxide
US6548039B1 (en) 1999-06-24 2003-04-15 Altair Nanomaterials Inc. Processing aqueous titanium solutions to titanium dioxide pigment
US6375923B1 (en) 1999-06-24 2002-04-23 Altair Nanomaterials Inc. Processing titaniferous ore to titanium dioxide pigment
AUPR820301A0 (en) * 2001-10-12 2001-11-01 Rmg Services Pty. Ltd. Treatment of a wide range of titanium oxide compounds
US7008602B2 (en) * 2002-04-19 2006-03-07 Millennium Inorganic Chemicals, Inc. Beneficiation of titaniferous ore with sulfuric acid
JP2005097666A (ja) * 2003-09-24 2005-04-14 Tohoku Techno Arch Co Ltd ルチルの製造法
KR20070042176A (ko) * 2004-07-13 2007-04-20 알타이어나노 인코포레이티드 약물 전용의 방지를 위한 세라믹 구조체
AU2006283170A1 (en) * 2005-08-23 2007-03-01 Altairnano, Inc. Highly photocatalytic phosphorus-doped anatase-TiO2 composition and related manufacturing methods
BRPI0504385B1 (pt) * 2005-10-17 2017-06-13 Vale S.A. Process of enrichment of mechanical concentrates of anatasio for the obtainment of synthetic rutilo with low rare land and radioactive elements
US7625536B2 (en) 2005-10-18 2009-12-01 Millennium Inorganic Chemicals, Inc. Titaniferous ore beneficiation
WO2007052801A1 (ja) * 2005-11-07 2007-05-10 Tohoku University ルチルの抽出方法
US20080020175A1 (en) * 2006-03-02 2008-01-24 Fred Ratel Nanostructured Indium-Doped Iron Oxide
US20080008843A1 (en) * 2006-03-02 2008-01-10 Fred Ratel Method for Production of Metal Oxide Coatings
WO2007103812A1 (en) * 2006-03-02 2007-09-13 Altairnano, Inc. Method for low temperature production of nano-structured iron oxide coatings
US7494631B2 (en) * 2007-03-26 2009-02-24 Millennium Inorganic Chemicals Titaniferous ore beneficiation
US20080254258A1 (en) * 2007-04-12 2008-10-16 Altairnano, Inc. Teflon® replacements and related production methods
EP2474633B1 (en) * 2009-09-02 2016-03-23 Sha, Lilin Titaniumrich hydrochloric acid leaching residue use thereof and preparation method of titanium dioxide
EP2556026A1 (en) * 2010-04-06 2013-02-13 Iluka Resources Limited Improved synthetic rutile process a
WO2013029119A1 (en) * 2011-09-02 2013-03-07 Iluka Resources Limited Production of ferrotitanium by aluminothermic reduction
RU2687363C1 (ru) * 2018-11-06 2019-05-13 Публичное Акционерное Общество "Корпорация Всмпо-Ависма" Способ получения искусственного рутила из ильменитовых концентратов
WO2021002332A1 (ja) * 2019-07-02 2021-01-07 石原産業株式会社 チタン濃縮物の製造方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB251527A (en) * 1925-10-20 1926-05-06 Arnold William Gregory An improved process for the treatment of ores for the recovery of titanium, tungstenand tantalum
FR1066777A (fr) * 1951-11-23 1954-06-09 Titan Co Procédé pour la production de concentrés de titane et produits conformes à ceux obtenus par la mise en oeuvre du procédé
CH346030A (fr) * 1955-06-30 1960-04-30 Electro Chimie Metal Procédé de déferrage de matières titanifères
US3677740A (en) * 1964-07-31 1972-07-18 British Titan Products Process of beneficiating titaniferous beach sand
BE754202A (fr) * 1969-07-31 1970-12-31 Titangesellschaft Mbg Procede pour extraire le fer de minerais titaniferes
BE758946A (fr) * 1969-11-24 1971-04-16 Titan Gmbh Procede d'enrichissement d'un minerai
ZA713018B (en) * 1970-05-13 1972-01-26 Montedison Spa Process for the preparation of synthetic rutile starting from ilmenite
US4097574A (en) * 1976-06-16 1978-06-27 United States Steel Corporation Process for producing a synthetic rutile from ilmentite
GB1588440A (en) * 1976-09-22 1981-04-23 Western Titanium Ltd Method of upgrading a titaniferous ore utilising reductive roasting
AU516155B2 (en) * 1976-09-22 1981-05-21 Western Titanium Ltd. Upgrading a titaniferous ore by reductive roasting
BR8701481A (pt) * 1986-04-03 1988-01-19 Du Pont Processo para purificacao de minerio de tio2;e pigmento de tio2 obtido pelo processo
ZA898010B (en) * 1988-10-24 1990-08-29 Wimmera Ind Minerals Proprieta Separation of chromite from metalliferous ores
AU4498989A (en) * 1988-10-24 1990-05-14 Wimmera Industrial Minerals Pty. Ltd. Refining of ilmenite by removal of excess chromite

Also Published As

Publication number Publication date
RU2102510C1 (ru) 1998-01-20
MY106150A (en) 1995-03-31
WO1991013180A1 (en) 1991-09-05
AU4604693A (en) 1993-11-18
EP0517786A1 (en) 1992-12-16
DE69133308D1 (de) 2003-10-09
EP0517786B1 (en) 2003-09-03
KR100198697B1 (en) 1999-06-15
ZA911515B (en) 1991-12-24
EP1217083A3 (en) 2002-10-23
KR927003860A (ko) 1992-12-18
JPH06501741A (ja) 1994-02-24
NZ237273A (en) 1992-02-25
US5427749A (en) 1995-06-27
CA2077441C (en) 2005-05-10
EP1217083A2 (en) 2002-06-26
AU639089B2 (en) 1993-07-15
EP0517786A4 (en) 1993-07-14
AU7450791A (en) 1991-09-18
CA2077441A1 (en) 1991-09-03

Similar Documents

Publication Publication Date Title
BR9106105A (pt) Processo para beneficiar o teor de titania de um minerio ou concentrado titanifero
FI935768A0 (fi) I fysiologisk omgivning upploesande mineralfibrer
BR9202012A (pt) Processo para tratar a superficie de fibras hidrotobas contendo poliolefinas
BR8605596A (pt) Processo para a preparacao de composicoes e para a preparacao de compostos
PT101711A (pt) Processo para a preparacao e/ou purificacao de acido clavulcanico
BR8604489A (pt) Processo para o tratamento de granulos
BR8500097A (pt) Primer para o tratamento previo de vidro no caso de colagem resistente a agua,processo para sua producao e sua utilizacao
BR8602450A (pt) Sistema de irrigacao e processo para operar o mesmo
PT84774B (pt) Processo para a preparacao de pirimidinas substituidas
BR9007125A (pt) Processo para concentrar cloro gasoso
BR8401625A (pt) Processo para reduzir o teor de cloreto hidrolisavel de um produto de epoxidacao
BR8900924A (pt) Processo para purificar alquilsilanos para abaixar o teor de impurezas de clorocarboneto
PT84617B (pt) Processo para a preparacao de iscos para caracois e lesmas resistentes a accao da chuva
BR8704989A (pt) Aparelho e processo para medir e controlar o teor de umidade de areia
BR8600025A (pt) Registro de corredica e vedacao uni-direcional/bi-direcional e processo de mudar o modo de vedacao de um registro de corredica de uni-direcional para bi-direcional e de bi-direcional para uni-direcional
BR8506413A (pt) Processo para a reducao do teor de cloro hidrolisavel em compostos de glicidila
BR9002395A (pt) Processo para diminuir o teor de enxofre de um sulfeto organico
FR2582697B1 (fr) Produits en fibres minerales sous forme de panneaux ou de rouleaux
BR8704522A (pt) Processo para a preparacao de tetracloreto de titanio
BR8700777A (pt) Processo para a diminuicao do teor de cloro em compostos glicidilicos e emprego
BR8903116A (pt) Amidas de acido tiadiozoliloxiacetico substituidas,processo para sua preparacao,composicoes herbicidas,aplicacao,processo para a preparacao de composicoes,metilsulfoniltiadiazois,metiltio-tiadiazois e 5-clorodifluormetil-2-metiltio-1,3,4-tiadiazol
BR8802699A (pt) Processo para producao de composto silanico ou siloxanico
BR8703546A (pt) Processo para a preparacao de ticl4
BR8700792A (pt) Processo e dispositivo para a aplicacao de colares de chapa de aluminio ou semelhantes aos nipels de barras anodicas que se salientam dos blocos anodicos
BR8600617A (pt) Aplicacao de amidas de acido sulfenico,composicoes praguicidas,misturas,compostos e processo para a preparacao de amidas

Legal Events

Date Code Title Description
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 01/03/2011