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английский) 1:
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The work relates to inorganic chemistry, in particular, to the way in which the sodium aluminate is used as a coagulant, and is an intermediate product for obtaining crystalline alumina and aluminium hydroxide. Solution of sodium hydroxide with a concentration of 500-550 g/l enter into interaction with the departure of production of aluminum foil to the caustic ratio Na2O/Al2O3, equal to 1. Interaction are at continuous hashing precursors for 20-25 minutes at a temperature of 90° c. The resulting solution is cooled to room temperature, then filter out. Simplifies the process, reduces the production cost of the product.
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