GB1425670A - Purification of mercury - Google Patents
Purification of mercuryInfo
- 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
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.
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)
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)
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)
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. |
-
1973
- 1973-01-27 DE DE2304063A patent/DE2304063A1/en active Pending
-
1974
- 1974-01-14 US US43332474 patent/US3895938A/en not_active Expired - Lifetime
- 1974-01-24 NL NL7400989A patent/NL7400989A/xx unknown
- 1974-01-25 JP JP1031674A patent/JPS49110529A/ja active Pending
- 1974-01-25 FR FR7402603A patent/FR2215479B1/fr not_active Expired
- 1974-01-25 IT IT4793474A patent/IT1002769B/en active
- 1974-01-25 AT AT62474A patent/ATA62474A/en not_active IP Right Cessation
- 1974-01-25 GB GB348674A patent/GB1425670A/en not_active Expired
- 1974-01-25 BE BE140167A patent/BE810151A/en unknown
Cited By (1)
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 |