| 摘要 |
<p>A process for dissolving high ferro content gibbsite. It is characterized in that, dissolving is proceeded at low temperature, atmospheric pressure, and low alkali concentration. The dissolving conditions are: alkali concentration Na<SUB>2</SUB>O<SUB>k</SUB> of the circulation mother liquor is 140-150g/l, the dissolving temperature is 105-108°C, the dissolving pressure is atmospheric pressure, the dissolving time is 10-15 min, the fineness of the primary ore pulp should be able to pass 20 mesh screen, and the pressure of the heating steam is 0.6 MPa. The process can be used to satisfy the requirement for dissolving high ferro content gibbsite in our country, saving not only a great deal of project expense, but also the consumption of steam.</p> |
