Toxicity and danger of nickel carbonyl

And toxic nickel carbonyl nickel powder is the main obstacle to industrial production. During the construction of the 500t/a nickel carbonyl test line in some companies, there have been several poisoning incidents. The workers after the poisoning cannot fu.......

Overview of gold recovery from nickel anode slime

The raw materials for the production of nickel are mainly nickel sulphide (or copper sulphide) and nickel oxide minerals. In addition, the use of blast furnace production of calcium plus magnesium.......

Introduction to manganese basic knowledge

The content of manganese in the earth's crust is the fifteenth place, which is 0.09%. According to geologists, almost all manganese deposits are almost "same years." This gives scientists the assumption that the aggregation of mangan.......

Grading and washing test

First, the classification test
The grading operation is used to control the particle size of the grinding product in the grinding circuit. The commonly used .......

Refrigerator car daily use matters needing attention

1. The interior of the carriage must be kept clean; there should be no wrapping paper or paper scraps on the ground; debris can impede the flow of air or be sucked into the evaporator. When using a refrigerated truck, the i.......

Turbine groove butterfly valve advantages introduced

Turbine groove butterfly valve is a relatively new valve products. It combines the advantages of ordinary butterfly valve, supplemented by high technology, it has a lot of advantages, suitable for some demanding conditions. 1, easy to operate Turbine butterfly valve butterfly valve clamp c.......