GB1450982A - Method of precipitating heavy metals out of acidic aqueous solutions - Google Patents
Method of precipitating heavy metals out of acidic aqueous solutionsInfo
- Publication number
- GB1450982A GB1450982A GB571374A GB571374A GB1450982A GB 1450982 A GB1450982 A GB 1450982A GB 571374 A GB571374 A GB 571374A GB 571374 A GB571374 A GB 571374A GB 1450982 A GB1450982 A GB 1450982A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heavy metals
- acidic aqueous
- feb
- aqueous solution
- fluoride
- 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
- 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
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
-
- 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)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Removal Of Specific Substances (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
1450982 Precipitating heavy metals STORA KOPPARBERGS BERGSLAGS AB 5 Feb 1974 [21 Feb 1973] 05713/74 Heading C1A Heavy metals are precipitated, in a form suitable for use as alloying additives in metal smelting furnaces, out of an acidic aqueous solution containing sulphuric acid and more than 2 g./l. heavy metal, by the steps of: at 30- 90‹ C., adding alkali metal hydroxide to bring the pH up to about 8, while stirring the solution; adding a calciferous or siliceous filter aid that is insoluble at that pH and is suitable for use as an additive for metal smelting; filtering the resultant slurry; and washing and drying the filter cake. Where the acidic aqueous solution contains fluoride ions, as a preliminary step, a quantity of calcium ions stoichiometrically equivalent to the fluoride ion content may be added, while maintaining the pH no greater than 4, so that calcium fluoride is precipitated during the subsequent raising of the pH to about 8. The heavy metals exemplified include iron, chromium and nickel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7302449A SE7302449L (en) | 1973-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1450982A true GB1450982A (en) | 1976-09-29 |
Family
ID=20316704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB571374A Expired GB1450982A (en) | 1973-02-21 | 1974-02-07 | Method of precipitating heavy metals out of acidic aqueous solutions |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS49125292A (en) |
| CA (1) | CA1019853A (en) |
| DE (1) | DE2406408C2 (en) |
| FR (1) | FR2218392B3 (en) |
| GB (1) | GB1450982A (en) |
| IT (1) | IT1008212B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU496809B2 (en) * | 1975-04-02 | 1978-11-02 | Inco Limited | Process forthe recovery of metals from solution |
| CA1053914A (en) * | 1975-04-29 | 1979-05-08 | Victor A. Ettel | Metal recovery from sulfate solutions |
| CA1046241A (en) * | 1975-07-28 | 1979-01-16 | Inco Limited | Preparation of nickel black |
| NO811237L (en) * | 1980-04-16 | 1981-10-19 | Voest Alpine Ag | PROCEDURE FOR THE RECOVERY OF METALS FROM THEIR SALT SOLUTIONS |
| CN109133313A (en) * | 2018-09-26 | 2019-01-04 | 南京金陵化工厂有限责任公司 | Wastewater treatment equipment is used in a kind of production of zinc stearate |
| CN111876600A (en) * | 2020-08-07 | 2020-11-03 | 贵州中伟资源循环产业发展有限公司 | Method for removing calcium and magnesium ions in sulfate solution and sulfate solution |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1048041A (en) * | 1961-10-23 | 1966-11-09 | Unifloc Ltd | Improvements in or relating to the disposal of waste pickle liquors |
| SE351444B (en) * | 1970-11-03 | 1972-11-27 | Nordstjernan Rederi Ab |
-
1974
- 1974-01-28 CA CA191,035A patent/CA1019853A/en not_active Expired
- 1974-02-07 GB GB571374A patent/GB1450982A/en not_active Expired
- 1974-02-08 IT IT48237/74A patent/IT1008212B/en active
- 1974-02-11 DE DE2406408A patent/DE2406408C2/en not_active Expired
- 1974-02-20 FR FR7405830A patent/FR2218392B3/fr not_active Expired
- 1974-02-21 JP JP49020036A patent/JPS49125292A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2218392A1 (en) | 1974-09-13 |
| CA1019853A (en) | 1977-10-25 |
| FR2218392B3 (en) | 1976-12-03 |
| DE2406408C2 (en) | 1982-11-11 |
| DE2406408A1 (en) | 1974-08-29 |
| JPS49125292A (en) | 1974-11-30 |
| IT1008212B (en) | 1976-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IE36195L (en) | Electrolytic dissociation of metal sulphides | |
| ES411067A1 (en) | Process for purifying metallurgical gases containing sulphurous anhydride by extracting mercury | |
| AU565125B2 (en) | Transition metal silicate catalyst | |
| GB1450982A (en) | Method of precipitating heavy metals out of acidic aqueous solutions | |
| GB1530372A (en) | Refining of manganese oxide ores | |
| GB970992A (en) | A process for the extraction of lithium from its ore | |
| ES422821A1 (en) | Procedure for impregnating filter materials. (Machine-translation by Google Translate, not legally binding) | |
| ES449103A1 (en) | Production of alkali metal phosphate solutions of low vanadium content | |
| GB896660A (en) | Improvements in the preparation of phosphates of bivalent metals | |
| ES8405732A1 (en) | Method of purifying uraniferous aqueous solutions | |
| GB1534171A (en) | Process for the recovery of metals contained in sludges containing metal sulphates resulting from the processing of ores | |
| GB939104A (en) | Improvements in or relating to the manufacture of phosphors | |
| GB1368156A (en) | Process for the manufacture of artificial manganese dioxide | |
| CN109179617B (en) | Phosphorus removing agent and preparation method and use method thereof | |
| JPS5451972A (en) | Method of continuously treating sexivalent chrome | |
| SU258348A1 (en) | Method of producing ferrovanadium | |
| ES2009356A6 (en) | Process for the production of alkali metal chlorate | |
| IE780909L (en) | Removal of impurities from solutions containing dissolved¹metals. | |
| ES468435A1 (en) | Procedure for the precipitation and separation of the arsenic of solutions that contain copper (Machine-translation by Google Translate, not legally binding) | |
| RU2039229C1 (en) | Water solution to lixivate non-ferrous metals ores | |
| SU827576A1 (en) | Method of purifying hydrolytic ferric cakes from nickel and cobalt | |
| GB1404586A (en) | Process for recovering sulphuric acid | |
| GB195077A (en) | An improved process for the manufacture of ferric hydroxide | |
| SU289750A1 (en) | Method of hydrometallurgical treatment of selenium-containing products | |
| GB1444058A (en) | Recovery of arsenic |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |