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BRPI0416083A - método de descontaminação por via lìquida de um material contendo cromo hexavalente, e matéria-prima para fabricação de produtos refratários - Google Patents

método de descontaminação por via lìquida de um material contendo cromo hexavalente, e matéria-prima para fabricação de produtos refratários

Info

Publication number
BRPI0416083A
BRPI0416083A BRPI0416083-5A BRPI0416083A BRPI0416083A BR PI0416083 A BRPI0416083 A BR PI0416083A BR PI0416083 A BRPI0416083 A BR PI0416083A BR PI0416083 A BRPI0416083 A BR PI0416083A
Authority
BR
Brazil
Prior art keywords
manufacture
hexavalent chromium
raw material
decontamination method
chrome
Prior art date
Application number
BRPI0416083-5A
Other languages
English (en)
Inventor
Philippe Descamp
Thierry Lucion
Jacques Tirlocq
Jean-Michel Auvray
Original Assignee
Inst Nat Interuniversitaire De
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
Priority claimed from BE2003/0584A external-priority patent/BE1015759A4/fr
Application filed by Inst Nat Interuniversitaire De filed Critical Inst Nat Interuniversitaire De
Publication of BRPI0416083A publication Critical patent/BRPI0416083A/pt

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/37—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by reduction, e.g. hydrogenation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C01G37/02—Oxides or hydrates thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C01G37/02—Oxides or hydrates thereof
    • C01G37/033—Chromium trioxide; Chromic acid
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic 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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/006—Wet processes
    • C22B7/007—Wet processes by acid leaching
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/40—Inorganic substances
    • A62D2101/43—Inorganic substances containing heavy metals, in the bonded or free state
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/26—Treatment of water, waste water, or sewage by extraction
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/70—Treatment of water, waste water, or sewage by reduction
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/70—Treatment of water, waste water, or sewage by reduction
    • C02F1/705—Reduction by metals
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C02F2101/22—Chromium or chromium compounds, e.g. chromates
    • 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
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium
    • 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)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Geology (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Anti-Oxidant Or Stabilizer Compositions (AREA)

Abstract

MéTODO DE DESCONTAMINAçAQ POR VIA LìQUIDA DE UM MATERIAL CONTENDO CROMO HEXAVALENTE, E MATéRIA-PRIMA PARA FABRICAçãO DE PRODUTOS REFRATáRIOS A invenção refere-se a um método para descontaminação de um material contendo cromo hexavalente, mediante utilização de um líquido. De acordo com o referido método, o material é lixiviado para formação de uma fase líquida e uma fase sólida. A invenção é caracterizada por a lixiviação ocorrer em meio ácido na presença de um agente redutor de tal forma que o cromo hexavalente é transformado em cromo trivalente em uma solução e de tal forma que o pH é aumentado para formação de hidróxido de cromo no estado sólido.
BRPI0416083-5A 2003-10-31 2004-10-30 método de descontaminação por via lìquida de um material contendo cromo hexavalente, e matéria-prima para fabricação de produtos refratários BRPI0416083A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE2003/0584A BE1015759A4 (fr) 2003-10-31 2003-10-31 Traitement d'une solution contenant du chrome hexavalent.
EP04077573 2004-09-16
PCT/BE2004/000155 WO2005042791A1 (fr) 2003-10-31 2004-10-30 Procede de decontamination d'un materiau contenant du chrome hexavalent

Publications (1)

Publication Number Publication Date
BRPI0416083A true BRPI0416083A (pt) 2008-07-15

Family

ID=34553072

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0416083-5A BRPI0416083A (pt) 2003-10-31 2004-10-30 método de descontaminação por via lìquida de um material contendo cromo hexavalente, e matéria-prima para fabricação de produtos refratários

Country Status (6)

Country Link
EP (1) EP1678337B1 (pt)
AT (1) ATE473304T1 (pt)
BR (1) BRPI0416083A (pt)
DE (1) DE602004028034D1 (pt)
RU (1) RU2368680C2 (pt)
WO (1) WO2005042791A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2971503B1 (fr) * 2011-02-14 2013-10-18 Saint Gobain Ct Recherches Procede de fabrication de grains refractaires contenant de l'oxyde de chrome 3.
WO2014006196A1 (de) 2012-07-06 2014-01-09 Lanxess Deutschland Gmbh Verfahren zur reduktion von sechswertigem chrom in oxidischen feststoffen
CN112707443A (zh) * 2021-02-22 2021-04-27 山东同其信息科技有限公司 一种铬渣处理工艺
CN114288604B (zh) * 2021-12-29 2023-05-30 湖北振华化学股份有限公司 一种铬渣无害化与资源化的处理方法
CN116329261B (zh) * 2023-03-24 2024-02-27 中化环境修复(上海)有限公司 处理六价铬污染建筑垃圾的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1055953B (it) * 1976-02-24 1982-01-11 Stoppani P & Co Procedimento di decontaminazione di materiale di scarto proveniente dalla lavorazione di minerali di cromo mediante trattamento conzolfo per via umida
JPS5348906A (en) * 1976-10-18 1978-05-02 Dowa Mining Co Method of treating sludge containing heavy metals
SU881004A1 (ru) * 1979-01-29 1981-11-15 Московский Завод Вторичных Драгоценных Металлов Способ обезвреживани сточных вод от хрома
JPS582164B2 (ja) * 1979-06-12 1983-01-14 工業技術院長 ６価クロムの還元分離方法
RU2042609C1 (ru) * 1992-03-17 1995-08-27 Первоуральское производственное объединение "Хромпик" Способ переработки щелочного сульфат-тиосульфатного раствора
RU2083497C1 (ru) * 1995-01-17 1997-07-10 Акционерное общество открытого типа "Хромпик" Способ переработки шлама хроматного производства
RU2091352C1 (ru) * 1996-02-29 1997-09-27 Акционерное общество закрытого типа "Диагностика аварийных ситуаций" Огнеупорный материал для изготовления огнеупорных изделий и способ производства огнеупорного материала для изготовления огнеупорных изделий
JP3935251B2 (ja) * 1997-12-12 2007-06-20 中部電力株式会社 六価クロム含有廃棄物の処理方法
DE10000709A1 (de) * 2000-01-10 2001-07-19 Mg Technologies Ag Verfahren zur Behandlung von Chrom(VI)-haltigen Rückständen

Also Published As

Publication number Publication date
RU2006118779A (ru) 2007-12-10
DE602004028034D1 (de) 2010-08-19
WO2005042791A1 (fr) 2005-05-12
RU2368680C2 (ru) 2009-09-27
ATE473304T1 (de) 2010-07-15
EP1678337B1 (fr) 2010-07-07
EP1678337A1 (fr) 2006-07-12

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B08L Patent application lapsed because of non payment of annual fee [chapter 8.12 patent gazette]

Free format text: REFERENTE AO NAO RECOLHIMENTO DAS 8A E 9A ANUIDADES.

B08I Publication cancelled [chapter 8.9 patent gazette]

Free format text: ANULADA A PUBLICACAO CODIGO 8.12 NA RPI NO 2258 DE 15/04/2014 POR TER SIDO INDEVIDA.

B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 8A, 9A, 10A, 11A, 12A, 13A, 14A, 15A E 16A 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: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2602 DE 17-11-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.