RO103832B1 - PROCEDEU DE îNDEPARTARE A CATIONILOR POLIVALENTI DIN SOLUTII DE MONOCROMAT ALCALIN - Google Patents

PROCEDEU DE îNDEPARTARE A CATIONILOR POLIVALENTI DIN SOLUTII DE MONOCROMAT ALCALIN

Info

Publication number
RO103832B1
RO103832B1 RO141224A RO14122489A RO103832B1 RO 103832 B1 RO103832 B1 RO 103832B1 RO 141224 A RO141224 A RO 141224A RO 14122489 A RO14122489 A RO 14122489A RO 103832 B1 RO103832 B1 RO 103832B1
Authority
RO
Romania
Prior art keywords
alkaline
monochromate
polyvalent cations
solutions
removal method
Prior art date
Application number
RO141224A
Other languages
English (en)
Other versions
RO103832A2 (en
Inventor
Klotz Helmut
Weber Rainer
Block Hans-Dieter
Klipper Reinhold
Hoffmann Heiko
Lonhoff Norbert
Original Assignee
Bayer Aktiengesellschaft
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 Bayer Aktiengesellschaft filed Critical Bayer Aktiengesellschaft
Publication of RO103832A2 publication Critical patent/RO103832A2/ro
Publication of RO103832B1 publication Critical patent/RO103832B1/ro

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C01G37/14—Chromates; Bichromates
    • 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
    • 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
    • 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
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/42—Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/28—Per-compounds
    • 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)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Removal Of Specific Substances (AREA)
  • Detergent Compositions (AREA)

Abstract

Procedeul de îndepartare a cationilor polivalenti din solutii de monocromat alcalin, prin schimb ionic, conform inventiei, foloseste cationiti pe baza de polistiren reticulat, sub forma de perle,contactul realizându-se în intervalul de temperaturi de 80...90 degree C, fie prin agitarea solutiei de monocromat cu respectivele perle adaugate în cantitati necesare, fie prin trecerea solutiei de monocromat alcalin cu un debit corespunzator prin coloane umplute de perle si care solutie de monocromat alcalin poate fi tratata preliminar cu carbonati alcalini pentru îndepartare a celei mai mari parti de metale alcalino-pamântoase înainte de purificare finala prin schimb ionic.
RO141224A 1988-08-27 1989-08-10 PROCEDEU DE îNDEPARTARE A CATIONILOR POLIVALENTI DIN SOLUTII DE MONOCROMAT ALCALIN RO103832B1 (ro)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3829120A DE3829120A1 (de) 1988-08-27 1988-08-27 Verfahren zur herstellung eines elektrolyten zur erzeugung von alkalidichromaten und chromsaeure

Publications (2)

Publication Number Publication Date
RO103832A2 RO103832A2 (en) 1991-12-09
RO103832B1 true RO103832B1 (ro) 1992-04-26

Family

ID=6361720

Family Applications (1)

Application Number Title Priority Date Filing Date
RO141224A RO103832B1 (ro) 1988-08-27 1989-08-10 PROCEDEU DE îNDEPARTARE A CATIONILOR POLIVALENTI DIN SOLUTII DE MONOCROMAT ALCALIN

Country Status (13)

Country Link
EP (1) EP0356803B1 (ro)
JP (1) JP2901190B2 (ro)
KR (1) KR970002899B1 (ro)
AR (1) AR245429A1 (ro)
BR (1) BR8904287A (ro)
CA (1) CA1339973C (ro)
DD (1) DD287409A5 (ro)
DE (2) DE3829120A1 (ro)
ES (1) ES2052844T3 (ro)
MX (1) MX169749B (ro)
RO (1) RO103832B1 (ro)
RU (1) RU1830051C (ro)
ZA (1) ZA896496B (ro)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3829121A1 (de) * 1988-08-27 1990-03-01 Bayer Ag Elektrochemisches verfahren zur herstellung von chromsaeure
EP1078690B1 (de) 1999-08-27 2011-10-12 LANXESS Deutschland GmbH Verfahren zur Herstellung von monodispersen Ionenaustauschern mit chelatisierenden Gruppen
DE10023970A1 (de) * 2000-05-16 2001-11-22 Bayer Ag Verfahren zur Gasadsorption mittels aminomethylierter Perlpolymerisate
CN112811468B (zh) * 2020-12-25 2023-05-23 四川省绵阳市华意达化工有限公司 一种提高铬酸酐质量的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2279453A1 (fr) * 1974-07-24 1976-02-20 Dia Prosim Echangeurs d'ions selectifs pour separer et fixer les metaux
US4157298A (en) * 1975-07-18 1979-06-05 Akzona Incorporated Method for the removal of ferric ions from a concentrated aqueous zinc solution
DE3704307A1 (de) * 1987-02-12 1988-08-25 Dow Chemical Gmbh Komplexbildendes harz des geltyps und seine verwendung zur verringerung der konzentration mehrwertiger erdalkali- und/oder schwermetallionen in loesungen

Also Published As

Publication number Publication date
KR970002899B1 (ko) 1997-03-12
DD287409A5 (de) 1991-02-28
KR900003066A (ko) 1990-03-23
DE58902682D1 (de) 1992-12-17
EP0356803A3 (en) 1990-03-28
EP0356803A2 (de) 1990-03-07
ZA896496B (en) 1990-05-30
AR245429A1 (es) 1994-01-31
MX169749B (es) 1993-07-22
EP0356803B1 (de) 1992-11-11
RO103832A2 (en) 1991-12-09
JPH02107526A (ja) 1990-04-19
ES2052844T3 (es) 1994-07-16
CA1339973C (en) 1998-07-28
JP2901190B2 (ja) 1999-06-07
RU1830051C (ru) 1993-07-23
DE3829120A1 (de) 1990-03-01
BR8904287A (pt) 1990-04-17

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