Separation of Chalcopyrite and Galena by Xanthate Flotation using Starch Xanthate as a Depressant for Galena
نویسندگان
چکیده
منابع مشابه
Investigation of effect of sulfate ion on xanthate consumption in galena flotation based on thermodynamic diagrams
Flotation is a common process in sulfide ore beneficiation. Due to the restrictions and lack of access to high-quality water sources for industrial purposes, recycled water plays an important role in the flotation processes. Due to the existence of various organic and inorganic substances in the process, water influences the flotation performance. In this work, the effect of accumulation of sul...
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The contamination of sulfur emanating from pyrrhotite in magnetite concentrates has been a problem in iron ore processing. This study utilized froth flotation to float pyrrhotite away from magnetite using collectors of xanthate and dixanthogen. It was found that xanthate or dixanthogen alone could not achieve selective separation between pyrrhotite and magnetite in flotation. A high loss of mag...
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In this research, the selective flotation of galena and sphalerite minerals was evaluated from a pyrite-rich lead-zinc sample. An optimum mixture of selective collectors against pyrite and also organic/inorganic pyrite depressants was obtained in the flotation of galena and sphalerite by an experimental mixture design. The effect of different collectors and pH values were investigated in the ob...
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Iron-oxidizing thiobacilli were adapted to grow on a chalcopyrite and a galena ore concentrate. When grown on the chalcopyrite concentrate, the bacteria exhibited a doubling time of 38.4 +/- 2.9 h, with a final cellular protein concentration of 185 mug/ml and solubilization of 10.3 g of copper per liter. When grown on the galena ore concentrate, the generation time was 39.6 +/- 2.7 h, with a fi...
متن کاملGALENA: Tabular DCG Parsing for Natural Languages
We present a deenite clause based parsing environment for natural languages, whose operational model is the dynamic interpretation of logical push-down automata. We attempt to brieey explain our design decisions in terms of a set of properties that practical natural language processing systems should incorporate. The aim is to show both the advantages and the drawbacks of our approach.
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ژورنال
عنوان ژورنال: Journal of the Mining and Metallurgical Institute of Japan
سال: 1987
ISSN: 0369-4194,2185-6729
DOI: 10.2473/shigentosozai1953.103.1187_29