GR20090100008A - Method for recovering of exloitable products from the solid waste of red mud. - Google Patents

Method for recovering of exloitable products from the solid waste of red mud.

Info

Publication number
GR20090100008A
GR20090100008A GR20090100008A GR20090100008A GR20090100008A GR 20090100008 A GR20090100008 A GR 20090100008A GR 20090100008 A GR20090100008 A GR 20090100008A GR 20090100008 A GR20090100008 A GR 20090100008A GR 20090100008 A GR20090100008 A GR 20090100008A
Authority
GR
Greece
Prior art keywords
red mud
oxides
recycled
products
exloitable
Prior art date
Application number
GR20090100008A
Other languages
Greek (el)
Other versions
GR1007098B (en
Inventor
Νικολαος Παπαδοπουλος
Χαϊδω-Στεφανια Καραγιαννη
Ευαγγελος Χριστοφορου
Ελενη Μεταξα
Original Assignee
Νικολαος Παπαδοπουλος
Χαϊδω-Στεφανια Καραγιαννη
Ευαγγελος Χριστοφορου
Ελενη Μεταξα
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 Νικολαος Παπαδοπουλος, Χαϊδω-Στεφανια Καραγιαννη, Ευαγγελος Χριστοφορου, Ελενη Μεταξα filed Critical Νικολαος Παπαδοπουλος
Priority to GR20090100008A priority Critical patent/GR20090100008A/en
Priority to PCT/GR2010/000003 priority patent/WO2010079369A1/en
Publication of GR1007098B publication Critical patent/GR1007098B/en
Publication of GR20090100008A publication Critical patent/GR20090100008A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/066—Treatment of the separated residue
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • 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
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/68—Aluminium compounds containing sulfur
    • C01F7/74—Sulfates
    • C01F7/76—Double salts, i.e. compounds containing, besides aluminium and sulfate ions, only other cations, e.g. alums
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/68—Aluminium compounds containing sulfur
    • C01F7/74—Sulfates
    • C01F7/76—Double salts, i.e. compounds containing, besides aluminium and sulfate ions, only other cations, e.g. alums
    • C01F7/762—Ammonium or alkali metal aluminium sulfates
    • C01F7/765—Ammonium aluminium sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
    • C01G23/0532—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing sulfate-containing salts
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/08—Ferroso-ferric oxide (Fe3O4)

Abstract

Method for the complete recovery of metal oxides from red mud which contains valuable oxides in high concentrations, such as titanium and aluminum oxides as well as iron oxides, which can be used as starting material for the production of ferrites. The proposed process provides ultra-pure products, in particular silica and calcium sulfate (starting materials for the cement industry), titanium dioxide (pigments), alum (pharmaceutical use) and magnetite (electric and electronic applications). The final product of the process is a solution of sodium aluminate, which can be recycled in the Bayer method. All the reagents used, i.e. hydrochloric acid, sulfuric acid, sodium hydroxide or ammonia, are completely recycled with simple distillation. More complex reagents or chelating factors can also be recycled, while the intermediate products are used in subsequent steps of the process. The energy requirements are low, since heat is emitted in certain steps. Finally, after completion of the process no residue of red mud is present (full exploitation).
GR20090100008A 2009-01-12 2009-01-12 Method for recovering of exloitable products from the solid waste of red mud. GR20090100008A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GR20090100008A GR20090100008A (en) 2009-01-12 2009-01-12 Method for recovering of exloitable products from the solid waste of red mud.
PCT/GR2010/000003 WO2010079369A1 (en) 2009-01-12 2010-01-12 Valuable products obtained from red mud

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR20090100008A GR20090100008A (en) 2009-01-12 2009-01-12 Method for recovering of exloitable products from the solid waste of red mud.

Publications (2)

Publication Number Publication Date
GR1007098B GR1007098B (en) 2010-07-12
GR20090100008A true GR20090100008A (en) 2010-09-09

Family

ID=41323612

Family Applications (1)

Application Number Title Priority Date Filing Date
GR20090100008A GR20090100008A (en) 2009-01-12 2009-01-12 Method for recovering of exloitable products from the solid waste of red mud.

Country Status (2)

Country Link
GR (1) GR20090100008A (en)
WO (1) WO2010079369A1 (en)

Families Citing this family (33)

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US7837961B2 (en) 2007-05-21 2010-11-23 Exploration Orbite Vspa Inc. Processes for extracting aluminum and iron from aluminous ores
JP5851502B2 (en) * 2010-06-30 2016-02-03 ガルダ，ケキ，ホルムスジ Metal extraction from aluminum-containing iron ore and titanium-containing iron ore and residues
WO2012100004A1 (en) * 2011-01-18 2012-07-26 Mohsen Amiran Methods for recovering magnetite bauxite residue
CA2829049C (en) * 2011-03-18 2014-12-02 Orbite Aluminae Inc. Processes for recovering rare earth elements from aluminum-bearing materials
US9410227B2 (en) 2011-05-04 2016-08-09 Orbite Technologies Inc. Processes for recovering rare earth elements from various ores
AU2012262586B2 (en) 2011-06-03 2015-05-14 Orbite Aluminae Inc. Methods for preparing hematite
CN102432074A (en) * 2011-08-30 2012-05-02 刘明诗 Bayer process and Bayer sintering process aluminum oxide red mud zero-pollution and zero-residue treatment method
BR112014006275A2 (en) 2011-09-16 2017-04-11 Orbite Aluminae Inc Alumina and various other product preparation processes
CN102491346A (en) * 2011-12-02 2012-06-13 太原理工大学 Method for preparing white carbon black from aluminum oxide red mud
US9023301B2 (en) 2012-01-10 2015-05-05 Orbite Aluminae Inc. Processes for treating red mud
KR101840058B1 (en) * 2012-02-24 2018-03-20 에스케이이노베이션 주식회사 Method of Preparing Modified Red Mud Using hydrochloric acid and phosphoric acid
WO2013142957A1 (en) 2012-03-29 2013-10-03 Orbite Aluminae Inc. Processes for treating fly ashes
US9290828B2 (en) 2012-07-12 2016-03-22 Orbite Technologies Inc. Processes for preparing titanium oxide and various other products
CN102745733B (en) * 2012-07-18 2014-03-12 潘爱芳 Method for separating useful components from sintered red mud
CN102757078B (en) * 2012-07-18 2014-03-05 潘爱芳 Method for separating useful components from bayer process red mud
WO2014047728A1 (en) 2012-09-26 2014-04-03 Orbite Aluminae Inc. Processes for preparing alumina and magnesium chloride by hc1 leaching of various materials
WO2014075173A1 (en) 2012-11-14 2014-05-22 Orbite Aluminae Inc. Methods for purifying aluminium ions
EP3060690B1 (en) * 2013-10-21 2020-10-14 Peloton Resources Pty Ltd. Deriving high value products from waste red mud
CN103588235B (en) * 2013-11-18 2015-02-25 中国铝业股份有限公司 Method for producing polyaluminium sulfate by using red mud slag
CN104973745A (en) * 2014-04-11 2015-10-14 河北建支铸造集团有限公司 Harmless treatment method of red sludge in after-treatment liquid of cold galvanizing
CN104071995B (en) * 2014-07-18 2016-03-30 河南理工大学 The online integrated conduct method of a kind of red mud
CN105067755A (en) * 2015-08-03 2015-11-18 上海电气电站设备有限公司 Method for determining content of iron in nickel-based high temperature alloy
CN105776296B (en) * 2016-04-01 2017-06-23 辽宁石化职业技术学院 A kind of industrial aluminum sulphate production technology improved method
CN110156029A (en) * 2019-04-28 2019-08-23 于拴全 Red mud Chemical Physics integrated conduct method
CN110172538B (en) * 2019-06-27 2021-01-29 深圳前海中能再生资源有限公司 Efficient red mud resource utilization system and process
CN111410212A (en) * 2020-03-09 2020-07-14 安徽海德化工科技有限公司 Method for recycling sulfuric acid production wastewater
CN112011691A (en) * 2020-08-28 2020-12-01 何耀 Efficient resource utilization method for red mud
CN112441614B (en) * 2020-11-06 2023-03-17 陕西省地质调查实验中心 Method for separating and recovering titanium dioxide from acidic solution
CN112441815B (en) * 2020-12-04 2022-08-30 太原科技大学 Method for preparing microwave absorbing material by utilizing red mud and coal gangue and application thereof
CN113912127B (en) * 2021-11-26 2023-09-08 中伟新材料股份有限公司 Method for removing silicon from manganese sulfate solution
CN114368789B (en) * 2021-12-16 2022-07-05 北部湾大学 Method for preparing ferrous sulfate crystal from red mud and titanium white waste acid
CN114655972B (en) * 2022-04-27 2023-10-27 云南省生态环境科学研究院 Method for efficiently removing organics from Bayer process alumina solution
CN115465932A (en) * 2022-10-24 2022-12-13 中化学朗正环保科技有限公司 Method for removing sulfate ions in calcium salt concentrated solution

Citations (4)

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US3295924A (en) * 1961-10-24 1967-01-03 Montedison Spa Process for recovering iron, titanium and aluminum from the red slurries obtained in processing bauxite by the bayer process
US4119698A (en) * 1976-11-26 1978-10-10 Kernforschungsanlage Julich, Gesellschaft Mit Beschrankter Haftung Reclamation treatment of red mud
GB2083450A (en) * 1980-08-26 1982-03-24 Tatabanyai Szenbanyak Reducing Iron Content of Raw Materials
JPH02111627A (en) * 1988-10-19 1990-04-24 Mitsubishi Heavy Ind Ltd Treatment of red mud

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US3311449A (en) 1962-02-12 1967-03-28 Mitsubishi Shipbuilding & Eng Process of recovering valuable components from red mud
DE1592406B2 (en) 1967-09-25 1978-12-14 Bayer Ag, 5090 Leverkusen Process for the production of titanium dioxide pigments with a high degree of whiteness
US3776717A (en) 1970-12-04 1973-12-04 Tatabanyai Szenbanyak Method for processing of red mud
DE3215727A1 (en) 1982-04-28 1983-11-03 Rheinische Braunkohlenwerke AG, 5000 Köln METHOD FOR TREATING RED SLUDGE
RO91333B1 (en) * 1985-03-06 1987-03-31 Institutul Politehnic Process for recovering the main components in the red slime sludge resulting from manufacturing alumina
US5043077A (en) 1989-12-11 1991-08-27 Alcan International Limited Treatment of bayer process red mud slurries
AUPN808196A0 (en) 1996-02-15 1996-03-07 Queensland Alumina Limited Red mud processing
GB0313886D0 (en) * 2003-06-16 2003-07-23 Jha Animesh Extraction route for Ti02 and alumina from bauxite and bauxitic residues,and titaniferrous deposits and wastes

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* Cited by examiner, † Cited by third party
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US3295924A (en) * 1961-10-24 1967-01-03 Montedison Spa Process for recovering iron, titanium and aluminum from the red slurries obtained in processing bauxite by the bayer process
US4119698A (en) * 1976-11-26 1978-10-10 Kernforschungsanlage Julich, Gesellschaft Mit Beschrankter Haftung Reclamation treatment of red mud
GB2083450A (en) * 1980-08-26 1982-03-24 Tatabanyai Szenbanyak Reducing Iron Content of Raw Materials
JPH02111627A (en) * 1988-10-19 1990-04-24 Mitsubishi Heavy Ind Ltd Treatment of red mud

Non-Patent Citations (2)

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DATABASE WPI Week 199022, Derwent World Patents Index; AN 1990-169013, XP002557251 *
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Also Published As

Publication number Publication date
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WO2010079369A1 (en) 2010-07-15

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Effective date: 20140801

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