ES364361A1 - Removal or iron from solution - Google Patents
Removal or iron from solutionInfo
- Publication number
- ES364361A1 ES364361A1 ES364361A ES364361A ES364361A1 ES 364361 A1 ES364361 A1 ES 364361A1 ES 364361 A ES364361 A ES 364361A ES 364361 A ES364361 A ES 364361A ES 364361 A1 ES364361 A1 ES 364361A1
- Authority
- ES
- Spain
- Prior art keywords
- mno
- solution
- iron
- removal
- treated
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Removal Of Specific Substances (AREA)
- Compounds Of Iron (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Iron is removed from an aqueous solution containing both Fe2+ and particles of MnO 2 by adjusting the pH to between 2 and the pH at which Fe2+, Zn2+ and Cd2+ ions form hydroxides, the Fe2+ being adsorbed by the MnO 2 and oxidized by the MnO 2 to Fe 2 O 3 which is then separated from solution as Fe 2 O 3 .MnO 2 . Preferably the MnO 2 in added after the adjustment of pH. Any iron in solution which is not as Fe2+ may first be reduced to Fe2+ by, for example, ZnS. The MnO 2 has a mesh size (Tyler) preferably between 50 and 300 and the temperature is preferably between 20 C. and the boiling point of the solution. The solution may be that derived from leaching ores also containing zinc, and/or cadmium. The Fe 2 O 3 .- MnO 2 may be subsequently treated with mineral acid (e.g. H 2 SO 4 ) to dissolve the iron, as Fe3+, the MnO 2 being recovered and re-used or the Fe 2 O 3 .MnO 2 may be treated with further Fe2+ solution until all the manganese is in solution at Mn2+.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA16582 | 1968-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES364361A1 true ES364361A1 (en) | 1970-12-16 |
Family
ID=4084147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES364361A Expired ES364361A1 (en) | 1968-04-03 | 1969-03-04 | Removal or iron from solution |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE730877A (en) |
| DE (1) | DE1916947A1 (en) |
| ES (1) | ES364361A1 (en) |
| FR (1) | FR2005422A1 (en) |
| GB (1) | GB1242147A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4042501A (en) * | 1976-07-02 | 1977-08-16 | Kaiser Aluminum & Chemical Corporation | Purification of iron containing acidic solutions |
| JPS605215A (en) * | 1983-06-22 | 1985-01-11 | Mitsui Mining & Smelting Co Ltd | Filter material for purifying water |
-
1969
- 1969-02-28 GB GB00696/69A patent/GB1242147A/en not_active Expired
- 1969-03-04 ES ES364361A patent/ES364361A1/en not_active Expired
- 1969-03-19 FR FR6907902A patent/FR2005422A1/fr not_active Withdrawn
- 1969-04-01 BE BE730877D patent/BE730877A/xx unknown
- 1969-04-02 DE DE19691916947 patent/DE1916947A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BE730877A (en) | 1969-09-15 |
| DE1916947A1 (en) | 1969-11-13 |
| GB1242147A (en) | 1971-08-11 |
| FR2005422A1 (en) | 1969-12-12 |
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