中國有色金屬學(xué)報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 6 No. 1 March 1996 |
THEORETIC ENERGY CONSUMPTION OFNONFERROUS METALS BY VACUUM DISTILLATION
Liu Rixin1，Wu Hua1，Dai Yongnian2
（1.Beijing General Research Institute of Mining and Metallurgy，Bei jing 100044;
2.Kunming University of Science and Technology，Kunming 650093）
Abstract:The expressions of heat of evaporation for metals at different temperatures were de-duced from Clausius-Clapeyron eyuatian and the total change of enthalpy. Those of Pb, Cd and Zn were calculated. Results showed that theoretic energy consumption decreased a little with the decrease of e-vaporatian temperature, which can be used to determine the energy demand while these metals are dis-tilled at different process temperatures and pressures.
Key words: energy consumption heat of evaporation vacuum distillation
