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APPLICATIONS OF FLOCCULANT IN BLEACHING AND WASHING OF KAOLIN
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作者 Xuanhai Li zuqiang huang Liuping Pan 《Journal of Central South University》 SCIE EI CAS 1999年第2期120-123,共4页
The difficulties of washing during the dressing of kaolin ore have been analyzed, the multistep intermittent washing model has been deduced, and effective methods for dealing with the difficulties were put forward. Ex... The difficulties of washing during the dressing of kaolin ore have been analyzed, the multistep intermittent washing model has been deduced, and effective methods for dealing with the difficulties were put forward. Experimental results show that the bleaching and washing process was enhanced, the washing time was shortened and the consumption of water was reduced by means of adding flocculant. 展开更多
关键词 KAOLIN BLEACHING WASHING FLOCCULANT
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Construction of spontaneously polarized ceramic via synergistic mechanical activation-Biomimetic mineralization for activating air and water
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作者 Wuxiang Zhang Hongguang Zhang +5 位作者 Ying Zhu zuqiang huang Yanjuan Zhang Tao Gan Huayu Hu Yuben Qin 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2023年第34期132-142,共11页
Spontaneously polarized crystals with intrinsic electric dipole moment have attracted immense interest as excellent functional materials for extensive applications.It is of great significance to engineer sustainable s... Spontaneously polarized crystals with intrinsic electric dipole moment have attracted immense interest as excellent functional materials for extensive applications.It is of great significance to engineer sustainable spontaneously polarized materials with fascinating characteristics and performance for activating air and water.Herein,a novel strategy based on the synergy of mechanical activation(MA)and biomimetic mineralization(BM)was created to construct spontaneously polarized ceramic.MA induced the structural damage of clay and promoted the dissolution of ions and the release of free proteins,contributing to the formation of silicate precursor in BM process.After high temperature firing,the silicate precursor in clay was converted to form KCa_(3)AlCa_(3)Si_(4)O_(16)(hexagonal crystal system,L^(6)symmetry type,and P63 space group)in the resulting spontaneously polarized ceramic.The non-centrosymmetric structure of KCa_(3)AlCa_(3)Si4O_(16)and the high intrinsic electric dipole moments contributed by K(1)polyhedrons resulted in high spontaneous polarization(0.2322μC/cm^(2))and far-infrared emissivity(0.951)of spontaneously polarized ceramic.In air,spontaneously polarized ceramic can activate H_(2)O and O_(2)molecules to form negative air ions owing to surface electric field.In water,spontaneously polarized ceramic can disaggregate large water clusters to form small water clusters ascribed to surface electric field and far-infrared emission;water pH can be regulated from weak acidity to approximate neutrality via the capture of electrons by H+ions to produce releasable hydrogen gas.This work provides great promise for rational design and synthesis of spontaneously polarized materials for functional applications. 展开更多
关键词 CERAMIC Spontaneous polarization Mechanical activation Biomimetic mineralization Activation of air and water
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