【摘要】 硫化矿如ZnS,Bi₂S₃,PbS等在火法冶炼中由于不同程度对环境的污染,因此迫使人们对其湿法处理开展了研究。湿法处理硫化矿从量子化学观点来看是在破坏金属原子与硫原子之间的键能。在各种硫化矿中,金属与硫之间的键能是各不相同的,因此浸出情况也就不同,凡是键能和极性键大的,则不易被浸出,反之则较易。本文从计算金属原子与硫原子的重迭积分入手计算各种硫化矿的键能,再考虑到极化情况,得到它们的键能大小次序为:ZnS>CoS>NiS>Sb₂S₃>CuS>Ag₂S>Bi₂S₃>PbS 上述次序表明ZnS不易被浸出,PbS则相反,计算情况与实际情况基本是一致的。更多还原

【Abstract】 (Teaching and Research Tection of Inorganic Chemistry) Since the vulcanizing mine, such as ZnS Bi₂S₃, PbS, pollutes environmentes in varying degrees in pyrometallurgy, this compelled us to study hydrometallurgy. From the viwe of Ouantum chemistry, the hydrometallurgy of vulcanizing mine is to destroy the bond energy between the atoms of metal and sulfur. In different vulcanizing mine, the bond energy is different, thus leaching-out is different. If the bond energy and polarity are large, it,cann’t be leached easily,other wise, it can be leached easily. Starting with the calculation of overlap integral for metal atom and sulfur atom. Wecalcuate the various bond gnergy, In consider ation of polar case, the order of bond energy is given as follons:ZnS>CoS>NiS>Sb₂S₃>CuS>Ag₂S>Bi₂S₃>PbSAccording to the above case it has been shown that ZnS is not leaned easily. On the other hand, PbS is leached easily. The results of calcuation coincide with the actual situation on the whole.更多还原