Low-ferriferous silicic bauxites, bauxite rocks and high-aluminiferous clays can be processed by a method of soda-sintering and subsequent leaching of sinter by a alcaline-aluminate turnaround solution. Three commodity products result from these process: (1) aluminium hydrooxide, or metallurgical aluminia; (2) synthetic zeolite, such as NaA and slime, enriched by titanium oxide (up to 20 %), scandium (up to 500-1000 g/t), yttrium and rare-earth elements.

The way was tested at the Ural Aluminium Plant. It is protected by the patent of Russian Federation.

In comparison with traditional ways of aluminium production, the offered technology is new and has no analogues in the world. It pioneers worldly in transfer of silica from the category of harmful impurity in a useful commodity product - synthetic zeolite Na-A, being the basic component in manufacture of synthetic detergents. Besides, for the time in a aluminium production, the slime from sinter leaching was received; this slime is rare-metal concentrate with the high contents of titanium oxide, scandium, yttrium and other rare-earth elements.

Cost of commodity production is 1,5 - 2,0 times lower than it was for traditional technologies.

Forms of co-operation: Methodical maintenance of design development, adaptation of technology for specific objects, and personnel training.