EP1123719A3 - Process for treatment of residues containing chromium (VI) - Google Patents

Process for treatment of residues containing chromium (VI) Download PDF

Info

Publication number
EP1123719A3
EP1123719A3 EP00128428A EP00128428A EP1123719A3 EP 1123719 A3 EP1123719 A3 EP 1123719A3 EP 00128428 A EP00128428 A EP 00128428A EP 00128428 A EP00128428 A EP 00128428A EP 1123719 A3 EP1123719 A3 EP 1123719A3
Authority
EP
European Patent Office
Prior art keywords
treatment
containing chromium
residues containing
iron
sulfate
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP00128428A
Other languages
German (de)
French (fr)
Other versions
EP1123719A2 (en
Inventor
Gurudas Samant
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MG Technologies AG
Original Assignee
MG Technologies AG
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 MG Technologies AG filed Critical MG Technologies AG
Publication of EP1123719A2 publication Critical patent/EP1123719A2/en
Publication of EP1123719A3 publication Critical patent/EP1123719A3/en
Withdrawn legal-status Critical Current

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
    • A62D3/33—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemical fixing the harmful substance, e.g. by chelation or complexation
    • 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
    • A62D2101/08—Toxic combustion residues, e.g. toxic substances contained in fly ash from waste incineration
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Um den Chrom(VI)-Gehalt von Rückständen aus chemischen, metallurgischen und Verbrennungsprozessen zu senken, wird der Rückstand mit einem oder mehreren der Stoffe Eisensulfat, Eisenchlorid, Eisenammoniumsulfat und Mangansulfat versetzt.The chromium (VI) content of residues from chemical, to reduce metallurgical and combustion processes Residue with one or more of the substances iron sulfate, Iron chloride, iron ammonium sulfate and manganese sulfate added.

EP00128428A 2000-01-10 2000-12-28 Process for treatment of residues containing chromium (VI) Withdrawn EP1123719A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000100709 DE10000709A1 (en) 2000-01-10 2000-01-10 Reduction of hexavalent chromium compounds in residue from chemical, metallurgical or incineration process, giving product used as building material, involves mixing with ferrous or manganous salt in preferably alkaline medium
DE10000709 2000-01-10

Publications (2)

Publication Number Publication Date
EP1123719A2 EP1123719A2 (en) 2001-08-16
EP1123719A3 true EP1123719A3 (en) 2001-09-12

Family

ID=7627106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00128428A Withdrawn EP1123719A3 (en) 2000-01-10 2000-12-28 Process for treatment of residues containing chromium (VI)

Country Status (2)

Country Link
EP (1) EP1123719A3 (en)
DE (1) DE10000709A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10341610B8 (en) * 2003-09-10 2007-09-27 Lentjes Gmbh Process for the incineration of solid waste
BE1015759A4 (en) * 2003-10-31 2005-08-02 Inst Nat Interuniversitaire De Decontamination procedure for material containing hexavalent chrome, e.g. from glass-making kilns, comprises lixiviation in acid with reducing agent
EP1678337B1 (en) * 2003-10-31 2010-07-07 Institut National Interuniversitaire des Silicates, Sols et Materiaux (I.N.I.S.Ma), a.s.b.l. Method of decontaminating refractory material containing hexavalent chrome
IT1395303B1 (en) * 2009-07-09 2012-09-05 Veneta Depuratori E Affini S Ve D A S R L Soc PROCEDURE FOR TREATING ASHES OBTAINED IN WASTE INCINERATION PLANTS.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5315264A (en) * 1976-07-29 1978-02-10 Taisei Corp Method of stabilizing and depolluting sludges containing lead chromate
JPS53113266A (en) * 1977-03-14 1978-10-03 Sakai Chem Ind Co Ltd Direct reatment method for powdered substance containing chromium
US5304710A (en) * 1993-02-18 1994-04-19 Envar Services, Inc. Method of detoxification and stabilization of soils contaminated with chromium ore waste
JPH06134436A (en) * 1992-09-08 1994-05-17 Nippon Steel Corp Method for treating ash containing heavy metal
WO1996033133A1 (en) * 1995-04-21 1996-10-24 Finnsementti Oy Method for treating ferrous sulphate

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3815948A1 (en) * 1988-05-10 1989-11-23 Bayer Ag METHOD OF CHROMA FAILURE FROM GERBEREIABWAESSERN
DE4444033A1 (en) * 1994-12-10 1996-07-18 Biolipsia Gmbh Beratung Analyt Detoxification of builder's rubble, soil etc. contaminated by chromate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5315264A (en) * 1976-07-29 1978-02-10 Taisei Corp Method of stabilizing and depolluting sludges containing lead chromate
JPS53113266A (en) * 1977-03-14 1978-10-03 Sakai Chem Ind Co Ltd Direct reatment method for powdered substance containing chromium
JPH06134436A (en) * 1992-09-08 1994-05-17 Nippon Steel Corp Method for treating ash containing heavy metal
US5304710A (en) * 1993-02-18 1994-04-19 Envar Services, Inc. Method of detoxification and stabilization of soils contaminated with chromium ore waste
WO1996033133A1 (en) * 1995-04-21 1996-10-24 Finnsementti Oy Method for treating ferrous sulphate

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 197812, Derwent World Patents Index; Class E31, AN 1978-22934A, XP002146707 *
DATABASE WPI Section Ch Week 197845, Derwent World Patents Index; Class E31, AN 1978-80996A, XP002146706 *
DATABASE WPI Section Ch Week 199424, Derwent World Patents Index; Class J09, AN 1994-196390, XP002146705 *

Also Published As

Publication number Publication date
DE10000709A1 (en) 2001-07-19
EP1123719A2 (en) 2001-08-16

Similar Documents

Publication Publication Date Title
Wacławek et al. Simple spectrophotometric determination of monopersulfate
DE68913658D1 (en) Cloning of immunoglobulin sequences from the variable domains.
DE59302990D1 (en) Process for the recovery of ammonia and organic compounds from waste gases loaded with organic substances, carbon dioxide and ammonia
DE69829273D1 (en) TREATMENT OF MINERAL PARTICLES
CA2386940A1 (en) Process for reducing the concentration of dissolved metals and metalloids in an aqueous solution
ATE89333T1 (en) PROCESS FOR NITROCARBURIZING STEEL COMPONENTS.
EP1123719A3 (en) Process for treatment of residues containing chromium (VI)
ATE283551T1 (en) HIGHLY EFFECTIVE METHOD FOR TREATING MIXED METAL WASTE
NO20001640L (en) Process for preparing a chloramine solution
ATE64919T1 (en) PROCESS FOR THE TREATMENT OF WASTEWATER CONTAINING CYANIDE AND TOXIC METALS WITH HYDROGEN PEROXIDE AND TRIMERCAPTOTRIAZINE.
EA199800524A1 (en) IMPROVED METHODS CATALIZED BY THE METAL-LIHAND COMPLEX
DE69325755D1 (en) Process for the treatment of combustion residues from household waste and products obtained in this way
EA200501752A1 (en) COMPOSITIONS AND METHODS OF BLACKING AND ATTRACTION OF CORROSION-RESISTANT PROPERTIES OF ZINC OR OTHER ACTIVE METALS
DE60029429D1 (en) METHOD AND COMPOSITIONS FOR MONITORING THE MODIFICATION OF NATURAL BINDING PARTNERS
DE59504216D1 (en) Process for treating vapors containing ammonia and hydrogen sulfide
ATE164531T1 (en) METHOD AND DEVICE FOR RECOVERING COMPONENTS OF A CATALYST
ATE153084T1 (en) METHOD FOR THE ELECTROCHEMICAL SYNTHESIS OF ORGANOSILICON COMPOUNDS AND A DEVICE FOR CARRYING OUT THE METHOD AND THE USE THEREOF FOR PRODUCING ORGANOSILICON COMPOUNDS
DE69024774D1 (en) Process for the chemical conversion of metal objects, bath used therefor and concentrate for producing the bath
ATE273944T1 (en) METHOD FOR REMOVAL OF HEAVY METALS
KR930017810A (en) Method for thermochemical decomposition of dinitrogen oxide
KR950024794A (en) Treatment agent for exhaust gas and treatment method using same
KR960023240A (en) Aqueous zinc phosphate treatment solution and treatment method
JPS57135724A (en) Reduction of hexavalent chromium
DE69113020D1 (en) MIXING COMPOSITION AND METHOD FOR MIXING TITANIUM COMPOUNDS FROM METAL SUBSTRATES.
KR960023232A (en) Method for removing ferric ions from plating solution for plating iron-manganese alloy

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020312

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20021030

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20030513