GB1425670A - Purification of mercury - Google Patents

Purification of mercury

Info

Publication number
GB1425670A
GB1425670A GB348674A GB348674A GB1425670A GB 1425670 A GB1425670 A GB 1425670A GB 348674 A GB348674 A GB 348674A GB 348674 A GB348674 A GB 348674A GB 1425670 A GB1425670 A GB 1425670A
Authority
GB
United Kingdom
Prior art keywords
mercury
solution
contaminated
cementing
sulphuric acid
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
GB348674A
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB1425670A publication Critical patent/GB1425670A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
    • C25B1/36—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in mercury cathode cells
    • 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
    • C22B43/00—Obtaining mercury
    • 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)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1425670 Purifying mercury BAYER AG 25 Jan 1974 [27 Jan 1973] 03486/74 Headings C7B and C7D The purification of mercury contaminated with iron, chromium, vanadium or other metallic impurities less noble than mercury from the electrolysis of alkali metal chlorides is carried out by treating the impure metal with an aqueous solution of sulphuric acid containing mercury(I) sulphate in solution or suspension, separating the purified mercury from the contaminated solution, washing it and recycling back to the electrolysis cell. Aqueous sulphuric acid and mercury (I) sulphate, from an electrolytic cell 4 (the cementing solution) is passed into a cup 3 and comes into contact with contaminated mercury from the horizontal amalgam decomposer 2 of an alkali metal chloride electrolysis cell 1. The liquids are turbulently mixed by a rotor 5 and the purified mercury passes into a chamber 7 where it is washed with dilute sulphuric acid prior to returning to the cell 1. The spent cementing solution 9 together with the spent anolyte solution 11 are further treated to remove salts by precipitation prior to recycling. Where a vertical amalgam decomposer 14 is used, the contaminated mercury is pumped 15 back to the cell via a mixing zone 16 into which the cementing solution is introduced. The cementing process is preferably carried out at 20-100‹C with 0.1 to 1 molar sulphuric acid, and all the containers should be resistant to the cementing solution.
GB348674A 1973-01-27 1974-01-25 Purification of mercury Expired GB1425670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2304063A DE2304063A1 (en) 1973-01-27 1973-01-27 METHOD FOR CLEANING UP MERCURY

Publications (1)

Publication Number Publication Date
GB1425670A true GB1425670A (en) 1976-02-18

Family

ID=5870154

Family Applications (1)

Application Number Title Priority Date Filing Date
GB348674A Expired GB1425670A (en) 1973-01-27 1974-01-25 Purification of mercury

Country Status (9)

Country Link
US (1) US3895938A (en)
JP (1) JPS49110529A (en)
AT (1) ATA62474A (en)
BE (1) BE810151A (en)
DE (1) DE2304063A1 (en)
FR (1) FR2215479B1 (en)
GB (1) GB1425670A (en)
IT (1) IT1002769B (en)
NL (1) NL7400989A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113604674A (en) * 2021-08-23 2021-11-05 云南金鼎锌业有限公司 Synergistic waste mercury regeneration technology and soaking precipitation pool thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012297A (en) * 1976-01-16 1977-03-15 Basf Wyandotte Corporation Mercury recovery and recycle process
IT1170081B (en) * 1983-12-30 1987-06-03 Montedipe Spa MERCURY DEPURATION PROCEDURE
DE4339794C2 (en) * 1993-11-16 1996-07-11 Werec Gmbh Berlin Wertstoff Re Process for the treatment of waste / residues containing amalgam
WO2002046717A2 (en) * 2000-12-05 2002-06-13 Ionguard Ltd. Recycling and purification of dropping mercury electrode

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR735855A (en) * 1931-04-30 1932-11-16 Process for the purification of mercury used as a cathode in electrolysis processes
US2032602A (en) * 1934-02-24 1936-03-03 Sun Oil Co Process for purifying mercury
US2846305A (en) * 1954-04-05 1958-08-05 American Cyanamid Co Separation and recovery of mercury
US3437476A (en) * 1965-08-26 1969-04-08 Dow Chemical Co Process for purifying mercury
US3639118A (en) * 1970-05-22 1972-02-01 Dow Chemical Co Process for purifying mercury
FI45767C (en) * 1970-07-03 1972-09-11 Outokumpu Oy Method for removing and recovering mercury and / or selenium from mercury and / or selenium-containing gases.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113604674A (en) * 2021-08-23 2021-11-05 云南金鼎锌业有限公司 Synergistic waste mercury regeneration technology and soaking precipitation pool thereof

Also Published As

Publication number Publication date
BE810151A (en) 1974-07-25
NL7400989A (en) 1974-07-30
FR2215479A1 (en) 1974-08-23
JPS49110529A (en) 1974-10-21
IT1002769B (en) 1976-05-20
US3895938A (en) 1975-07-22
DE2304063A1 (en) 1974-08-01
FR2215479B1 (en) 1977-09-23
ATA62474A (en) 1976-03-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee