OREANDA-NEWS. UC RUSAL (trade code on the Hong Kong stock exchange 486, Euronext RUSAL/RUAL, Moscow exchange RUAL/RUALR), one of the world's largest aluminium producers, announces the entry at the Krasnoyarsk aluminum plant site on two stage cleaning gases with obtaining of sodium sulfate. Investment in this project amounted to 1.14 million U.S. dollars.

A new technology developed by Engineering technology center RUSAL, surpasses foreign analogues in a number of characteristics: there is no dumping of liquid and solid wastes, and also provides a higher degree of purification of gases – two phase, which includes wet and dry type gas cleaning. In the first stage of gas cleaning is possible to obtain sodium sulphate, which is used in the production of cellulose, glass, detergents, and building materials.

The introduction of new technology will allow the company to abandon the construction of new sludge fields on the KrAZ that will save up to 1.39 million USD per year. Will also be reduced maintenance costs gas cleaning equipment.

The new site has already passed preliminary tests and has produced more than 50 tons of sulphate. In addition, the resulting sodium sulfate has been tested in the laboratory, the Bratsk pulp and paper mill. It is expected that the first batch of sodium sulfate with a basic substance content above 95 to 97% will be shipped to the plant in August 2017. According to preliminary estimates, RUSAL can produce up to 5-10 thousand tons of sodium sulfate per year.