OREANDA-NEWS. March 20, 2008. GRASYS has won the tender held by JSC Vasilkovsky Mining and Processing Complex for the supply of a large-scale adsorption oxygen plant designated for the 8MTPA rated gold recovery plant currently under construction in the Vasilkovskoye field, Kazakhstan. The general contractor under the project is TOMS Industrial KZ.

The adsorption oxygen plant will be used to support the technological process based on the innovative procedure of concentrate reactor oxidation instead of the previously used bacterial oxidation technology. The proposed cutting-edge technology is more cost-effective, reliable and environment-friendly as compared with the bacterial oxidation process.


GRASYS has become the winner due to the superior performance characteristics of its equipment and optimal delivery term. An important factor in selecting GRASYS as the successful bidder was its extensive market experience and proven records of successful implementation of technically complex projects for gas separation equipment manufacture.

Pursuant to the contract entered into with JSC Vasilkovsky Mining & Processing Complex, GRASYS has started the development and manufacture of an oxygen adsorption plant with the rated capacity of 1,800 nmі/hr and oxygen purity of 90%. The projected plant will be extremely simple in operation and will require no continuous monitoring due to its complete automation.