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【期刊论文】石炭と炭酸カルシムにょゐ硫化亚铅精矿の直接還元*
张传福, 朝仓岩三, 小川修
,-0001,():
-1年11月30日
In a former report4) the authors have proposed a new method to prepare strong briquettes for the vertical retort zinc smelting process by mixing zinc sulfide concentrate with pulverized coal and calcium oxide followed by preheating, briquetting, and coking. In the present study, calcium carbonate has been substituted for calcium oxide because the latter quickly reacts with moisture in the ambient atmosphere and causes the briquette to collapse in a day or two. The coked briquette with calcium carbonate is as strong as the one with calcium oxide, does not collapse after being left in the laboratory for weeks, and is faster for zinc sulfide to be reduced. Fixation of sulfur during the reduction of zinc sulfide is excellent and substantially all the sulfur is fixed in the form of CaS. Although the specific resistance at room temperature, 29.2Ω·cm, of the coked briquette in this study in abtut six times as large as that of the former on with calcium oxide, it easily decreased to about 23Ω·cm when when heated to about 100℃, which suggests the possibility of feeding the briquette into not only a vertical retort but also an electrothermic furnace without additional coke.
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【期刊论文】COMPUTER MODEL OF COPPER SMELTING PROCESS AND DISTRIBUTION BEHAVIORS OF ACCESSORY ELEMENTS
张传福, Tan Pengfu, Zhang Chuanfu
,-0001,():
-1年11月30日
A computer model has been developed to simulate the distribution behaviors of Ni, Co, Sn, Pb, Zn, As, Sb, Bi, Au and Ag in copper smelting process. The model assumes that the copper smelting furnace is in thermodynamic equilibrium. As many as 21 elements (Cu, S, Fe, Ni, Co, Sn, As, Sb, Bi, Pb, Zn, Au, Ag, O, N, C, H, Ca, Mg, A1, and Si) and 73 compounds are considered. This model accounts for physical entrainment in the melts. The predictions by the present computer model are compared with the known commercial data from Guixi Smelter in China, Horne Smelter in Canada and Naoshima Smelter in Japan. The agreements between the computer predictions and the commercial data are excellent, so that the present computer model can be used to monitor and optimize the actual industrial operations of copper smelting. It is applicable to simulation of almost all copper pyrometallurgical processes.
simulate, distribution behaviors, copper, smelting, computer model
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【期刊论文】Selective dissolution of gold in an alkaline thiourea solution by electrolysis
张传福
,-0001,():
-1年11月30日
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张传福
,-0001,():
-1年11月30日
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