ID: 0512
DATE: 2019/02/26
GOODS NAME: technology of the expulsion of the chlorine in zinc ingot industry
HS CODE:
DETAILS:
There are many methods to remove chlorine, such as pyrometallurgical method and wet method. The pyrometallurgical method usually uses multi-hearth furnace roasting method to remove chlorine, so that the volatilization of chlorine in materials can achieve the purpose of removal. The wet method often uses silver sulfate precipitation method, copper slag chlorine removal method, ion exchange method and alkali washing chlorine removal method. The pyrometallurgical industry has a large disposal capacity, but it has a large one-time investment, high energy consumption and great environmental pollution. The wet industry has low investment, low energy consumption, friendly environment, and dechlorination index can be well controlled. In wet process, alkali dechlorination is often used because of its low cost, good dechlorination effect, easy realization of automatic control and industrial production.
