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2 results about "Smithsonite" patented technology
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Smithsonite, or zinc spar, is zinc carbonate (ZnCO₃), a mineral ore of zinc. Historically, smithsonite was identified with hemimorphite before it was realised that they were two distinct minerals. The two minerals are very similar in appearance and the term calamine has been used for both, leading to some confusion. The distinct mineral smithsonite was named in 1832 by François Sulpice Beudant in honor of English chemist and mineralogist James Smithson (c.1765–1829), whose bequest established the Smithsonian Institution and who first identified the mineral in 1802.
A method for selective sulphidizing roasting-flotation separation of smithsonite-calcite mixed ore
This invention belongs to the field of mineral processing technology, specifically relating to a selective sulfidation roasting-flotation separation method for a smithsonite-calcite mixed ore. The method first involves crushing and grinding the smithsonite, calcite, and sulfiding agent, then mixing them in a certain proportion and subjecting them to sulfidation roasting, preferentially causing the smithsonite to undergo sulfidation. After cooling the roasted product in an inert atmosphere, flotation separation is performed using xanthate as a collector to obtain zinc concentrate. By controlling the atmospheric conditions during the sulfidation roasting process, the sulfidation reaction efficiency of the smithsonite can be improved, and the generation of sulfur oxide gases during roasting can be reduced. When using this method to process the smithsonite-calcite mixed ore, effective recovery of the smithsonite can be achieved, with a flotation recovery rate exceeding 88%. This invention features a simple process flow and easily controllable operating conditions, providing a new technical approach for the efficient utilization of smithsonite resources.
Owner:NORTHEASTERN UNIV CHINA
Purple sand pug rich in trace elements and preparation method of purple sand pug
The invention discloses purple sand pug rich in trace elements. The purple sand pug comprises the following components in percentage by weight: 6%-8% of selenium silver ore, 8%-12% of strontianite, 25%-30% of spodumene, 3%-6% of smithsonite and 44%-58% of purple sand raw ore pug. The finished product is obtained by mixing the purple sand pug and the mineral aggregate rich in trace elements in the firing process, and trace elements are separated out after the purple sand pug and the mineral aggregate are soaked in water. The invention provides the purple sand pug rich in trace elements, which is high in yield and convenient to form after being fired, and the trace elements are separated out after being soaked in water, and the preparation method thereof.
Owner:王卫明