Desiliconization of Industrial Solutions of Sodium Tungstate.

The results of laboratory experiments on the desiliconization of autoclave-soda leaching solutions to a content of 0. 2-0. 5 g/dm**3 SiO//2 by the action of an anolyte are confirmed by an experiment on the purification of 200 dm**3 of autoclave leaching solution by an anolyte obtained on an experimental electrodialysis machine. The process of purification of autoclave solutions by the action of an anolyte consists in adding the anolyte to an arbitrary volume of hot autoclave solution in portions of 9 to 8. 5 is attained, subsequent settling for two hours at 90 degree C, and filtration.