CU23290A1 - PROCEDURE FOR THE TREATMENT OF H2S OF THE EFFLUENTS OF THE ACID PROCESS USING THE IRON TAILS - Google Patents

PROCEDURE FOR THE TREATMENT OF H2S OF THE EFFLUENTS OF THE ACID PROCESS USING THE IRON TAILS

Info

Publication number
CU23290A1
CU23290A1 CU20060044A CU20060044A CU23290A1 CU 23290 A1 CU23290 A1 CU 23290A1 CU 20060044 A CU20060044 A CU 20060044A CU 20060044 A CU20060044 A CU 20060044A CU 23290 A1 CU23290 A1 CU 23290A1
Authority
CU
Cuba
Prior art keywords
procedure
acid
tons
glues
activated
Prior art date
Application number
CU20060044A
Other languages
Spanish (es)
Inventor
Olmo Esteban Luis Alfonso
Davis Mara A De Fa Tim Bugallo
Sua Rez Josa Castellanos
Original Assignee
Ct De Investigaciones Y Proyec
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 Ct De Investigaciones Y Proyec filed Critical Ct De Investigaciones Y Proyec
Priority to CU20060044A priority Critical patent/CU23290A1/en
Priority to AU2007218669A priority patent/AU2007218669A1/en
Priority to PCT/CU2007/000003 priority patent/WO2007095865A1/en
Publication of CU23290A1 publication Critical patent/CU23290A1/en

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
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/04—Obtaining nickel or cobalt by wet processes
    • C22B23/0407—Leaching processes
    • C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
    • C22B23/043—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
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/04—Obtaining nickel or cobalt by wet processes
    • C22B23/0453—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B23/0461—Treatment or purification of solutions, e.g. obtained by leaching by chemical methods
    • C22B23/0469—Treatment or purification of solutions, e.g. obtained by leaching by chemical methods by chemical substitution, e.g. by cementation
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • 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
    • C02F2101/101—Sulfur compounds
    • 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
    • C22B15/00—Obtaining copper
    • C22B15/0063—Hydrometallurgy
    • C22B15/0084—Treating solutions
    • C22B15/0089—Treating solutions by chemical methods
    • C22B15/0093—Treating solutions by chemical methods by gases, e.g. hydrogen or hydrogen sulfide
    • 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
    • C22B15/00—Obtaining copper
    • C22B15/0095—Process control or regulation methods
    • C22B15/0097—Sulfur release abatement
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

La presente invención está relacionada con el procesamiento de minerales lateríticos por la vía hidrometalúrgica específicamente con la tecnología ácida a presión .El proceso consiste en aÅ"adir ácido sulfúrico concentrado a los residuos insolubles de minerales de hierro (colas o mineral) en condiciones establecidas de toneladas de ácido sulfúrico/ toneladas de cola (0.2-0.8) con una concentración de sólidos (46-65%) en pulpas acuosas durante un tiempo de reacción entre 10-60 min, a una temperatura controlada de 90 a 110 o C, se lograN soluciones concentradas de Fe 3+ de hasta 160 g/L equivalente 570.0 g/L de Fe2 (SO4) en una pulpa de colas activadas, logrando un mejor aprovechamiento del ácido y onsecuentemente un mínimo contenido de ácido libre, en forma de pulpas de colas activadas aÅ"adidas al efluente, permite oxidar el H2 S con una dosificación de iones férrico en cantidades menor que la estequeométrica, seguido del procedimiento de separación del azufre coloidal del efluente líquido por medio de la neutralización con Ca(OH)2 a pH entre (1.5-5).</P>The present invention is related to the processing of laterite minerals by the hydrometallurgical route specifically with acidic pressure technology. The process consists in adding concentrated sulfuric acid to the insoluble residues of iron ores (glues or ore). ) under established conditions of tons of sulfuric acid / tons of glue (0.2-0.8) with a concentration of solids (46-65%) in aqueous pulps for a reaction time between 10-60 min, at a controlled temperature of 90 to 110 o C, concentrated Fe 3+ solutions of up to 160 g / L equivalent 570.0 g / L of Fe2 (SO4) are achieved in a pulp of activated glues, achieving a better utilization of the acid and subsequently a minimum content of free acid, in the form of pulps of tails activated to Å "adidas to the effluent, allows to oxidize the H2 S with a dosage of ferric ions in quantities smaller than the stecheometric one, followed of the procedure for the separation of colloidal sulfur from the liquid effluent by means of neutralization with Ca (OH) 2 at pH between (1.5-5). </P>

CU20060044A 2006-02-24 2006-02-24 PROCEDURE FOR THE TREATMENT OF H2S OF THE EFFLUENTS OF THE ACID PROCESS USING THE IRON TAILS CU23290A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CU20060044A CU23290A1 (en) 2006-02-24 2006-02-24 PROCEDURE FOR THE TREATMENT OF H2S OF THE EFFLUENTS OF THE ACID PROCESS USING THE IRON TAILS
AU2007218669A AU2007218669A1 (en) 2006-02-24 2007-02-23 Method for obtaining Fe3+ ions in order to eliminate H2S from liquid effluents
PCT/CU2007/000003 WO2007095865A1 (en) 2006-02-24 2007-02-23 METHOD FOR OBTAINING Fe3+ IONS IN ORDER TO ELIMINATE H2S FROM LIQUID EFFLUENTS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CU20060044A CU23290A1 (en) 2006-02-24 2006-02-24 PROCEDURE FOR THE TREATMENT OF H2S OF THE EFFLUENTS OF THE ACID PROCESS USING THE IRON TAILS

Publications (1)

Publication Number Publication Date
CU23290A1 true CU23290A1 (en) 2008-06-30

Family

ID=40122429

Family Applications (1)

Application Number Title Priority Date Filing Date
CU20060044A CU23290A1 (en) 2006-02-24 2006-02-24 PROCEDURE FOR THE TREATMENT OF H2S OF THE EFFLUENTS OF THE ACID PROCESS USING THE IRON TAILS

Country Status (3)

Country Link
AU (1) AU2007218669A1 (en)
CU (1) CU23290A1 (en)
WO (1) WO2007095865A1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI88516C (en) * 1990-02-16 1993-05-25 Outokumpu Oy Hydrometallurgical process for the treatment of zinc sulphide

Also Published As

Publication number Publication date
AU2007218669A1 (en) 2007-08-30
WO2007095865A1 (en) 2007-08-30

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Legal Events

Date Code Title Description
FG Grant of patent