When the temperature is higher than 120 ° C, CuS, NiS can be further oxidized to sulfate. In addition, Fe 2+ , Cu 2+ , Zn 2+ , Ni 2+ , etc. can accelerate the hot-pressure oxygen immersion rate of elemental sulfur.
We are professional engaged in food machinery research, development,
production, industry and trade as one of the outstanding enterprises.
After years of research and practice, we have developed pepper deep
processing lines, pickled cabbage production lines, soybean production
Line,mixer,grinder,dehydrated vegetables drying equipment,six series food special machinery. Our products has been sold
throughout the country and south korea, japan,spain and other countries
and the middle east and Africa. The machine in this classification are
used for dehydration of fruit and vegetable. The machine has good
technical performance,simple operation, convenient maintenance and
cleaning,high production efficiency,stable performance.
The machine in this classification are used for producing soybean paste, the equipment has the advantages of reasonable design, compact structure, simple operation and convenient maintenance.
In this classification you can find soybean paste extruder, soybean cleaning machines, soybean cooking pot, and so on.
we are looking forward to cooperate with you.
Soybean Cleaning Machine,Mixture Proportioning System,Cooling Machine,Soybean Processing Equipment QINGDAO HK MACHINERY AND EQUIPMENT CO.,LTD , http://www.hk-machinery.com
(6) some of the oxygen ions in the leaching solution can have a catalytic process, such as copper sulfate, may catalyze sphalerite, cadmium sulfide leaching:
ZnS+CuSO 4 =ZnSO 4 +CuS
CuS+2O 2 =CuSO 4
The oxidation rate of the finely divided copper sulfide produced by the reaction is quite large. When hot-pressing oxygen immersion copper blue, the oxidation rate of hydrochloric acid or perchloric acid is higher than that of hydrochloric acid, and its catalytic effect is:
The hot-pressure oxygen immersion reaction rate of sulfide minerals is related to factors such as reagent concentration, oxygen concentration, phase boundary area, temperature, thickness of the diffusion layer, and catalysis.
