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The medium pressure gas preparation technology of carbonyl iron powder

At present, the production technology of carbonyl iron powder produced by medium pressure method has become the focus of new material field.

Compared with high pressure method, the pressure of carbonyl iron is 8.0 MPa, only 1/3 of the high pressure method.
The synthesis speed is 60h/kettle, while the high pressure method requires 120h/kettle.
The conversion rate of iron is greater than 75%, while the high pressure method is only about 65%.
In addition, the auxiliary raw materials CO can not only be close to 100% recycling, but also adopt the energy saving cycle mode.
In compressed air method can not only reduce equipment manufacturing costs, increase production capacity, is advantageous to the scale, and the low energy consumption, in the process of production can make full use of raw materials, the production cost is much lower than the cost of production of high pressure method.

At present, the technology is in the stage of industrialization.