ZA832667B - Process for the recovery of aluminum and iron salts from acidic waste waters - Google Patents
Process for the recovery of aluminum and iron salts from acidic waste watersInfo
- Publication number
- ZA832667B ZA832667B ZA832667A ZA832667A ZA832667B ZA 832667 B ZA832667 B ZA 832667B ZA 832667 A ZA832667 A ZA 832667A ZA 832667 A ZA832667 A ZA 832667A ZA 832667 B ZA832667 B ZA 832667B
- Authority
- ZA
- South Africa
- Prior art keywords
- iii
- iron
- oxide
- hydroxide
- aluminum
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
- C01B33/28—Base exchange silicates, e.g. zeolites
- C01B33/2807—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures
- C01B33/2815—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of type A (UNION CARBIDE trade name; corresponds to GRACE's types Z-12 or Z-12L)
- C01B33/2823—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures of type A (UNION CARBIDE trade name; corresponds to GRACE's types Z-12 or Z-12L) from aqueous solutions of an alkali metal aluminate and an alkali metal silicate excluding any other source of alumina or silica
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
- C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/20—Purifying combustible gases containing carbon monoxide by treating with solids; Regenerating spent purifying masses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/203—Iron or iron compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Removal Of Specific Substances (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Compounds Of Iron (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
1. A process for the treatment of acid waste water containing aluminum and iron, wherein (a) the acid waste containing small amounts of colloidal silicic acid is heated to just below boiling point so as to precipitate aluminum hydroxide and hydrated iron (III) oxide and is neutralized with calcium oxide and/or calcium hydroxide ; (b) the resultant aluminum hydroxide iron (III) hydroxide precipitate is trated with sodium hydroxide until dissolution of the aluminum hydroxide as aluminate ; (c) the remaining hydrated iron (III) oxide precipitate is separated from the sodium aluminate solution, washed dried and the hydrated iron (III) oxide is pelletised for use as a gas-purifying medium or is converted by thermal treatment into iron (III) oxide suitable for use as pigment ; (d) and the sodium aluminate solution is converted into a crystalline zeolite by reaction with a water glass solution.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823213932 DE3213932A1 (en) | 1982-04-15 | 1982-04-15 | METHOD FOR THE TREATMENT OF ALUMINUM AND IRONIC ACIDS |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA832667B true ZA832667B (en) | 1983-12-28 |
Family
ID=6161003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA832667A ZA832667B (en) | 1982-04-15 | 1983-04-15 | Process for the recovery of aluminum and iron salts from acidic waste waters |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0092108B1 (en) |
JP (1) | JPS58181722A (en) |
AT (1) | ATE29869T1 (en) |
CA (1) | CA1201422A (en) |
DE (2) | DE3213932A1 (en) |
DK (1) | DK166883A (en) |
NO (1) | NO831323L (en) |
NZ (1) | NZ203890A (en) |
ZA (1) | ZA832667B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4306663A1 (en) * | 1993-03-03 | 1994-09-08 | Sued Chemie Ag | Process for the environmentally friendly utilization of acid wastewater |
DE10324561A1 (en) * | 2003-05-30 | 2004-12-16 | Süd-Chemie AG | Semi-synthetic bleaching earth |
WO2005095674A1 (en) * | 2004-03-31 | 2005-10-13 | G.R. Trattamenti Termici - Grtt S.R.L. | Process for recovering caustic soda solutions from pickling of aluminum extrusion matrix |
DE102004027619B4 (en) * | 2004-06-05 | 2008-04-03 | Hottinger Baldwin Messtechnik Gmbh | Overload protection for a force measuring element |
CN101830477B (en) * | 2010-06-10 | 2012-12-05 | 济宁医学院 | Technology for preparing PSAF (Polymer Silica Aluminum Ferrum) by waste rock base raw material |
CN103842296B (en) * | 2011-06-03 | 2016-08-24 | 奥贝特科技有限公司 | For the method preparing bloodstone |
DE102012108298B4 (en) * | 2012-05-23 | 2015-05-21 | Envirochemie Gmbh | Removal of aluminum from wash liquor |
CN102718267B (en) * | 2012-07-18 | 2013-11-20 | 广西大学 | Method for preparing black iron oxide by utilizing yellow ammonium iron alum slag |
CN103253797B (en) * | 2013-06-04 | 2015-06-03 | 苏州南风优联环保工程有限公司 | Online treatment and recycling technique for waste water on anode oxidization production line |
CN103788708A (en) * | 2014-02-12 | 2014-05-14 | 铜陵瑞莱科技有限公司 | Chitosan-containing iron oxide green pigment |
US20210198768A1 (en) | 2018-05-30 | 2021-07-01 | Lixivia, Inc. | Selective Extraction of Metals From Complex Inorganic Sources |
CN109455748A (en) * | 2018-12-17 | 2019-03-12 | 北京建工金源环保发展股份有限公司 | A method of recycling aluminum nitrate from waste acid liquor |
CN112551535A (en) * | 2020-12-30 | 2021-03-26 | 泉州市利芝新材料科技有限公司 | Spodumene iron-removing and whitening process |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1517727A1 (en) * | 1963-03-31 | 1969-04-24 | Baer Dr Erhardt | Process for cleaning up industrial waste water |
US3425800A (en) * | 1967-10-05 | 1969-02-04 | Aluminum Co Of America | Production of crystalline zeolites |
GB1218601A (en) * | 1968-01-01 | 1971-01-06 | Unifloc Ltd | Disposal of waste liquors from pickling processes |
US3494864A (en) * | 1969-06-16 | 1970-02-10 | Robert A Willihnganz | Water purification process |
US3798160A (en) * | 1971-03-29 | 1974-03-19 | American Metal Climax Inc | Treatment of aluminum waste liquors |
GB1454933A (en) * | 1974-10-12 | 1976-11-10 | Tioxide Group Ltd | Process for the treatment of acidic waste liquid containing dissolved salts |
JPS5221197A (en) * | 1975-08-07 | 1977-02-17 | Nitto Electric Ind Co | Method of collecting laver spores |
-
1982
- 1982-04-15 DE DE19823213932 patent/DE3213932A1/en not_active Withdrawn
-
1983
- 1983-03-29 JP JP58051698A patent/JPS58181722A/en active Pending
- 1983-04-06 AT AT83103362T patent/ATE29869T1/en not_active IP Right Cessation
- 1983-04-06 DE DE8383103362T patent/DE3373806D1/en not_active Expired
- 1983-04-06 EP EP83103362A patent/EP0092108B1/en not_active Expired
- 1983-04-13 CA CA000425803A patent/CA1201422A/en not_active Expired
- 1983-04-14 NO NO831323A patent/NO831323L/en unknown
- 1983-04-14 NZ NZ203890A patent/NZ203890A/en unknown
- 1983-04-15 DK DK166883A patent/DK166883A/en not_active IP Right Cessation
- 1983-04-15 ZA ZA832667A patent/ZA832667B/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP0092108B1 (en) | 1987-09-23 |
CA1201422A (en) | 1986-03-04 |
EP0092108A3 (en) | 1985-05-22 |
DK166883D0 (en) | 1983-04-15 |
DE3373806D1 (en) | 1987-10-29 |
NZ203890A (en) | 1986-07-11 |
EP0092108A2 (en) | 1983-10-26 |
DE3213932A1 (en) | 1983-10-27 |
DK166883A (en) | 1983-10-16 |
ATE29869T1 (en) | 1987-10-15 |
JPS58181722A (en) | 1983-10-24 |
NO831323L (en) | 1983-10-17 |
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