In this article, the causes of that the pressure difference in the oil filter in the lubricant system used in the liquid short pump were gradually analyzed.

Mechanical seal of semi-lean solution pump was prone to failure,the main causes are by crystallization of the solution,malfunction of the spring and the insufficient of rinsing water pressure in the capsulation.

Based on long-run application of GGX-9 atomic absorption spectrophotometer in desorption-electrolysis process in our company, the paper sums up a series of analytic method in determining the content of gold in gold-loaded carbon, lean carbon, desorption pregnant solution and electrolysis lean solution, awarding successful application result.

Experimental research and theoretical calculation on the craft of trash extraction of cyaniding poor liquid;

Practice about treatment of cyanide barren solution using membrane filtration technology;

Research on removing cobalt from lean cadmium solution in the zinc hydrometallurgical process;