Technique for rapid separation and red-mud washing of sodium aluminate solution
A sodium aluminate and solution technology, applied in the field of red mud separation and washing process, can solve the problems of long liquid-solid separation time in separation settling tank, reduction of alumina production capacity, increase of silicon oxide content, etc., so as to shorten separation and settling time and save energy Bauxite resources, the effect of reducing dissolution loss
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[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0028] In the embodiment of the present invention, a process for rapid separation of sodium aluminate solution and red mud washing process, the specific steps are:
[0029] 1) Desanding: firstly use de-sanding devices, such as rake classifiers, hydrocyclones and classification tanks, to separate coarse particles larger than 150 mesh in the dissolved slurry, and then send the de-sanded dissolved slurry to the dilution tank; The said leacha...
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