Ispitivanje hemizma hlorovanja bakar(I)-sulfida kalcijum-hloridom u prisustvu kiseonika

Abstract

Na osnovu termodinamičke analize i karakterizacije bakar(I)-sulfida i produkata luženja određen je hemizam hlorovanja bakar(I)-sulfida kalcijum-hloridom u prisustvu kiseonika. Ispitan je uticaj temperature (473K-773K), vremena (2-120 min) protoka kiseonika (20-100 l/h) i količine kalcijum-hlorida (5-40% и visku) na stepen hlorovanja bakar(l)-sulfida kalcijum-hloridom. Na osnovu kinetičke analize i dobijene vrednosti za energiju aktivacije (20,89 kj/mol), utvrđeno je da se hlorovanje bakar(I)-sulfida kalcijum-hloridom odvija u difuzionoj oblasti.

The chemism of the chlorination of copper(I) sulphide by calcium chloride in the presence of oxygen has been determined on the basis of thermodynamic and characterization of copper(I) sulphide and leaching products. The influence of temperature (from 473 to 773 K), time (from 2 to 120 min), oxygen flow (from 20 to 100 L/h) and calcium chloride quantity (from 5 to 40%) on the chlorination degree of copper(I) sulphide by calcium chloride has been investigated. Kinetic analysis and the activation energy values of 20.89 kj/mol showed that the chlorination of the copper(I) sulphide by calcium chloride in the presence of oxygen is diffusion controlled.