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method. And then, the relationship between the sedimentation ability of the minerals and their surfacial properties was discussed. Further, the reason for the sedimentation ability of goethite... hydrate (DSP), calcium titanate, goethite, hematite and limestone, while the sedimentation ability tendency is reverse. Less solvent tendency improves their sedimentation. In addition, the sedimentation......
；等高线图 中图分类号:TF816 文献标志码:A Goethite deironization process for cobaltiferous bioleaching solution... of the iron removal rate and the cobalt recovery were also discussed. The results show that, E.Z goethite method is suitable for the iron removal process from the cobaltiferous bioleaching solution, and its......
锌浸出液针铁矿法除铁邓永贵1,陈启元1,尹周澜1,张平民1(1.湖南省长沙市中南大学化学化工学院)摘 要:使用微分反应器装置针铁矿法从湿法炼锌浸出液除铁,对含铁为Fe3+/Fe2+浸出液为待除铁液进行试验.结果表明,此法除铁易于工业实践,除铁效果好.在大量晶种存在时,溶液pH=2.5,除铁后溶液含铁量为0.0064g/L,除铁率为99.74%,而没有晶种存在时,相同pH值时,除铁率仅为90%,除铁后溶液含铁量大于0.07g/L.关键词:冶金技术； 锌浸出液除铁； 针铁矿法； 晶种； 微分反应器装置......
and low degree of comprehensive utilization of Guangdong muscovite-type kaolin, the reasons affecting the quality of kaolin were found to be a small amount of maroon powdery goethite adhering.... Key words: muscovite-type kaolin; flotation; goethite; desliming 1 Introduction Kaolin, a very important nonmetallic material, is widely used in ceramics, chemical engineering, plastic, paint......
应器限制,水热法制备的针铁矿的产量有限,若改用准均相成核法制备针铁矿晶种,可以满足湿法炼锌浸出液针铁矿法除铁所需大量晶种的要求. 关键词:针铁矿；水热法；准均相成核法；晶种 中图分类号:TQ 138.1 文献标识码:A Preparation of goethite seeds for removal of ferrous/ferric..., Changsha 410083, China) Abstract: Goethite (α-FeOOH) was successfully prepared via hydrothermal method in acidic solutions. Thermogravimetry-differential thermogravimetry (TG-DTG) and X-ray diffraction......
Trans. Nonferrous Met. Soc. China 27(2017) 429-439 Negative effects of dissolved organic compounds on settling performance of goethite in Bayer red mud Meng WANG, Hui-ping HU, Jin-wei LIU School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China Received 22 July 2015; accepted 8 January 2016 Abstract: Goethite, a typical iron-containing monomineral in red mud......
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microanalysis (EPMA). According to EPMA results, the mineral includes 80% goethite ((Fe, Ni, Al)O(OH)) with 0.87% Ni, 15% silicate minerals with lizardite ((Mg, Fe, Ni)3Si2O5(OH)) and olivine ((Mg, Fe, Ni... chemistry; nickel occurrence; goethite; lizardite 1 Introduction As an important metal, nickel is widely used in stainless steel and new material industries. According to marketing observations, 66.2......
to study the mineral structure and surface characteristics of high-iron hydrargillite. Gibbsite, goethite, and hematite were found to be the main mineral components of hydrargillite, whereas the goethite... substitution of Al and Fe was observed in goethite. The dissolution-controlling step of hydrargillite was the ionic diffusion speed because of the goethite and hematite that closely covered......
of Refractory Non-ferrous Metals)Abstract:The transformation law of goethite and its effect on the alumina recovery were investigated in order to determine the reason of low alumina recovery in Bayer digestion process of gibbsitic bauxite with high alumogoethite content. The results show that the goethite present in this kind of bauxite has no obvious change in the digestion temperature range of 110......
