发明授权
US4091071A Process for digesting goethite-containing bauxites according to the
Bayer technology
失效
根据拜耳技术消化含有针铁矿的铝土矿的工艺
- 专利标题： Process for digesting goethite-containing bauxites according to the Bayer technology
- 专利标题（中）： 根据拜耳技术消化含有针铁矿的铝土矿的工艺
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申请号： US643670申请日： 1975-12-23
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公开(公告)号： US4091071A公开(公告)日： 1978-05-23
- 发明人: Jozsef Boros , Tibor Ferenczi , Gyula Horvath , Ferenc Lazar , Laszlo Lengyel , Jozsef Matyasi , Maria Orban nee Kelemen , Tihamer Pinter , Gyorgy Sigmond , Peter Siklosi , Karoly Solymar , Bela Toth , Istvan Voros , Kalman Wentzely , Janos Zambo , Jozsef Zoldi
- 申请人： Jozsef Boros , Tibor Ferenczi , Gyula Horvath , Ferenc Lazar , Laszlo Lengyel , Jozsef Matyasi , Maria Orban nee Kelemen , Tihamer Pinter , Gyorgy Sigmond , Peter Siklosi , Karoly Solymar , Bela Toth , Istvan Voros , Kalman Wentzely , Janos Zambo , Jozsef Zoldi
- 申请人地址： HU Budapest HU Budapest HU Almasfuzito
- 专利权人： Femipari Kutato Intezet,Aluterv Aluminiumipari Tervezo Vallalat,Almasfuzitoi Timfoldgyar
- 当前专利权人： Femipari Kutato Intezet,Aluterv Aluminiumipari Tervezo Vallalat,Almasfuzitoi Timfoldgyar
- 当前专利权人地址： HU Budapest HU Budapest HU Almasfuzito
- 优先权： HUAU330 19741224
- 主分类号： C01F7/06
- IPC分类号： C01F7/06
摘要：
The invention relates to an improved process for the production of alumina according to the Bayer technology, of bauxites containing goethite and especially of boehmitic or diasporic bauxites, for the acceleration of the digestion process, for the transformation of goethite into hematite, for the increase of alumina yield and for the reduction of the caustic soda losses, the essence of which consists in carrying out the digestion in the presence of 2-6% CaO and 0.2-2.0% Mg.sup.++, Fe.sup.++, Mn.sup.++ Co.sup.++ ions based on the weight of the dry bauxite or of compounds or ores containing these ions in the indicated quantities.
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