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solution of leaching limonitic, the leaching recoveries of Ni and Mg are 92% and above 74%, respectively, when the molar ratio of Na of sodium sulfate added to that of Na-jarosite precipitation is 1.3.......
. Process for preparation of ammoniojarosite included acid-leaching, filteration, swing in with ammonium sulfate and adjusted pH. The samples were characterized by N2 adsorption-desorption, X-ray diffraction......
into acidic sulfate copper plating solution. The optimized technological conditions of Cu-diamond composite electroplating were obtained by orthogonal test. The effects of CuSO4·5H2O concentration......
residue are lead sulfate and zinc sulfide. Key words: zinc neutral leaching residue; reductive leaching; sulfur dioxide; kinetics Foundation item: Project (2012FJ1010, 2014FJ1011) supported the Key......
by a simple one-pot template-free hydrothermal method with copper sulfate, cobalt acetate and ammonia as raw materials. The products were characterized by powder X-ray diffraction, energy dispersive X......
which includes desilication with dilute hydrochloric acid and iron-manganese deeply removing with concentrated hydrochloric acid. The removal rules of silicon, iron, manganese, calcium and aluminum were......
lattice of magnetite and makes the magnetite more stable. Therefore, the mass fraction of magnetite in sinter increases and needle-like calcium ferrite decreases due to the retarding of magnetite......
quantity of alkaline basaltic rock with low calcium aluminum, belonging to intraplate rift environment. So far, the basin transformation has finished from compressive orogeny to initial splitting to full......
condition. The sample crystallization phases are mainly calcium akermanite (2CaO·MgO·2SiO2) and gehlenite (2CaO·Al2O3·SiO2). Secondary crystallization phases are anorthite (CaAl2Si2O8), wollastonite... are calcium akermanite (2CaO·MgO·2SiO2) and gehlenite (2CaO·Al2O3·SiO2). Secondary crystallization phases are anorthite (CaAl2Si2O8), wollastonite minerals (WOLLA) and pyroxene minerals (cPyrA......
of TiO2 to CaCl2 (nTiO2/nCaCl2) in the pellets. The results show that metallic Ti was obtained from the reduction of TiO2 in the pellets by calcium (Ca) vapor; pellets were reduced homogenously and Ca... a pressure; 2) calcination of the pellets at elevated temperatures; 3) reduction of TiO2 by calcium with an indirect contact method, i.e. no direct contact of TiO2 with reducing agent (calcium shots......
