GB1486322A - Method of removing zinc from aqueous effluent - Google Patents

Method of removing zinc from aqueous effluent

Info

Publication number
GB1486322A
GB1486322A GB4703574A GB4703574A GB1486322A GB 1486322 A GB1486322 A GB 1486322A GB 4703574 A GB4703574 A GB 4703574A GB 4703574 A GB4703574 A GB 4703574A GB 1486322 A GB1486322 A GB 1486322A
Authority
GB
United Kingdom
Prior art keywords
zinc
aqueous
oxyacid
solution
organic solvent
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.)
Expired
Application number
GB4703574A
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.)
Svenska Rayon AB
Original Assignee
Svenska Rayon AB
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 SE7314841A external-priority patent/SE375328B/xx
Application filed by Svenska Rayon AB filed Critical Svenska Rayon AB
Publication of GB1486322A publication Critical patent/GB1486322A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G9/00—Compounds of zinc
    • C01G9/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
    • 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
    • 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
    • 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
    • C22B3/12—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline 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
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C22B3/262—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds using alcohols or phenols
    • 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
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C22B3/38—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
    • C22B3/384—Pentavalent phosphorus oxyacids, esters thereof
    • C22B3/3842—Phosphinic acid, e.g. H2P(O)(OH)
    • 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
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C22B3/38—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
    • C22B3/384—Pentavalent phosphorus oxyacids, esters thereof
    • C22B3/3844—Phosphonic acid, e.g. H2P(O)(OH)2
    • 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
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C22B3/38—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
    • C22B3/384—Pentavalent phosphorus oxyacids, esters thereof
    • C22B3/3846—Phosphoric acid, e.g. (O)P(OH)3
    • 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
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C22B3/38—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
    • C22B3/385—Thiophosphoric acids, or esters 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
    • 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
    • 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
    • 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)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Geology (AREA)
  • Metallurgy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Physical Water Treatments (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Compounds Of Unknown Constitution (AREA)

Abstract

1486322 Solvent extraction of zinc SVENSKA RAYON AB 30 Oct 1974 [31 Oct 1973 28 Jan 1974] 47035/74 Heading C1A Zinc is removed from an aqueous effluent obtained in rayon manufacture by a method which comprises:- (a) adjusting the free sulphuric acid content of the effluent to less than 30 g/l, (b) subjecting the solution to liquid-liquid extraction with a solution of a diorgano-phosphorous oxyacid in an organic solvent to form a separate phase, whereby the zinc and the diorganophosphorous oxyacid form a compound which is more soluble in the organic solvent than in the aqueous effluent, and separating the organic and aqueous solutions and (c) contacting the separated organic solvent with an aqueous sulphuric acid solution to split the zinc/diorganophosphorous oxyacid compound and redissolve the zinc in the aqueous solution to form zinc sulphate and separating the zinc-free organic solvent and diorganophosphorous oxyacid from the aqueous solution and returning the organic solvent to extraction step (a), and returning the zinc sulphate to the rayon manufacturing process. The diorganophosphorous oxyacid preferably has the general formula:- The aqueous stripping solution in step (b) is preferably sulphuric acid. When iron is also present it may be separated from the zinc by using an aqueous solution containing 50-200 g/l of sulphuric acid in a first stripping process in step (b) to remove the zinc and subsequently stripping the iron with an aqueous solution of 500-1000 g/l of sulphuric acid.
GB4703574A 1973-10-31 1974-10-30 Method of removing zinc from aqueous effluent Expired GB1486322A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7314841A SE375328B (en) 1973-10-31 1973-10-31
SE7401085 1974-01-28

Publications (1)

Publication Number Publication Date
GB1486322A true GB1486322A (en) 1977-09-21

Family

ID=26656415

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4703574A Expired GB1486322A (en) 1973-10-31 1974-10-30 Method of removing zinc from aqueous effluent

Country Status (10)

Country Link
JP (1) JPS5074567A (en)
DD (1) DD116212A1 (en)
DE (1) DE2449279A1 (en)
ES (1) ES431306A1 (en)
FI (1) FI313774A (en)
FR (1) FR2249838B1 (en)
GB (1) GB1486322A (en)
IT (1) IT1032103B (en)
NL (1) NL7414188A (en)
NO (1) NO743908L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956154A (en) * 1988-03-09 1990-09-11 Unc Reclamation Selective removal of chromium, nickel, cobalt, copper and lead cations from aqueous effluent solutions

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053552A (en) * 1976-03-15 1977-10-11 General Mills Chemicals Co. Solvent extraction of zinc from sulfite-bisulfite solution
LU81601A1 (en) * 1979-08-13 1981-03-24 Metallurgie Hoboken PROCESS FOR SEPARATING TRIVALENT IRON FROM AN AQUEOUS CHLORIDE SOLUTION
AT392803B (en) * 1989-02-24 1991-06-25 Prior Eng Ag METHOD FOR SEPARATING AND RECOVERING SOLVED, FALLABLE METALS, IN PARTICULAR HEAVY METALS, FROM AQUEOUS SOLUTIONS
DE4204892A1 (en) * 1992-02-19 1993-08-26 Wiegel Verwaltung Gmbh & Co Iron and zinc salts sepn. from acid etching soln. - by using organic extn. agent to remove zinc salt and sulphate ion producing agent to convert salt into insol. zinc sulphate, for pure prods.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956154A (en) * 1988-03-09 1990-09-11 Unc Reclamation Selective removal of chromium, nickel, cobalt, copper and lead cations from aqueous effluent solutions

Also Published As

Publication number Publication date
JPS5074567A (en) 1975-06-19
IT1032103B (en) 1979-05-30
NL7414188A (en) 1975-05-02
FR2249838B1 (en) 1978-06-09
DE2449279A1 (en) 1975-05-07
ES431306A1 (en) 1976-11-16
FR2249838A1 (en) 1975-05-30
FI313774A (en) 1975-05-01
NO743908L (en) 1975-05-26
DD116212A1 (en) 1975-11-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee
PCNP Patent ceased through non-payment of renewal fee

Free format text: FOR 1486322 READ 1486233 IN JOURNAL NO. 4918,PAGE 1811

PCNP Patent ceased through non-payment of renewal fee