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公开(公告)号：US20190381428A1
公开(公告)日：2019-12-19
申请号：US16480547
申请日：2018-02-07
Applicant: Kemira OYJ
Inventor： Marcelo Moreira Da Costa , Xihui Yin , Sergio Cabo , Luis Irineu
Abstract: Selective flocculants for beneficiation of bauxite ore comprise one or more types of polysaccharides comprising one or more types of pentosan units. Also disclosed are processes for enriching aluminum hydroxide and alumina from bauxite ore comprising the aluminum hydroxide and alumina and clay materials and and/or siliceous gangue, wherein the process comprises carrying out a selective flocculation process in the presence of one or more of the selective flocculants.
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2.发明授权公开(公告)号：US11612898B2
公开(公告)日：2023-03-28
申请号：US16329404
申请日：2017-08-30
Applicant: KEMIRA OYJ
Inventor： Marcelo Moreira Costa , Xihui Yin , Sergio Cabo
IPC: B03D1/016 , B03D1/06 , C02F1/24 , C08F220/34 , C08F220/56 , C08G59/10 , C08L39/04 , C08L79/02 , B03D1/00 , C02F103/10 , B03D1/01 , C02F1/56 , C02F101/20
Abstract: The present embodiments generally relate to a technology for improving Cu/Mo grade by the addition of cationic polymers as selective depressants for acid insoluble matters, e.g., silicates and/or clays, in the flotation circuit. Various types of cationic polymers are demonstrated to be effective depressants including polyamine, polyDADMAC, and cationic polyacrylamide. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue, wherein the process comprises carrying out a flotation process in the presence of one or more cationic polymer depressants.
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公开(公告)号：US20190381518A1
公开(公告)日：2019-12-19
申请号：US16480548
申请日：2018-02-07
Applicant: Kemira OYJ
Inventor： Sergio Cabo , Marcelo Moreira Da Costa , Xihui Yin
Abstract: Selective polysaccharide agents or flocculants comprise one or more types of polysaccharides comprising one or more types of pentosan units. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue and/or other minerals, wherein the process comprises treating the ore in an aqueous medium with one or more selective polysaccharide agents or flocculants comprising one or more types of polysaccharides comprising one or more types of pentosan units.
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4.发明申请公开(公告)号：US20190217311A1
公开(公告)日：2019-07-18
申请号：US16329404
申请日：2017-08-30
Applicant: KEMIRA OYJ
Inventor： Marcelo Moreira Costa , Xihui Yin , Sergio Cabo
IPC: B03D1/016 , C08F220/34 , C08F220/56 , C08L39/04 , C08L79/02 , C08G59/10
CPC classification number: B03D1/016 , B03D1/00 , B03D1/01 , B03D1/06 , B03D2201/002 , B03D2201/06 , B03D2203/02 , B03D2203/025 , C02F1/24 , C02F1/56 , C02F2101/20 , C02F2103/10 , C08F220/34 , C08F220/56 , C08G59/10 , C08L39/04 , C08L79/02
Abstract: The present embodiments generally relate to a technology for improving Cu/Mo grade by the addition of cationic polymers as selective depressants for acid insoluble matters, e.g., silicates and/or clays, in the flotation circuit. Various types of cationic polymers are demonstrated to be effective depressants including polyamine, polyDADMAC, and cationic polyacrylamide. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue, wherein the process comprises carrying out a flotation process in the presence of one or more cationic polymer depressants.
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