METHOD FOR RECOVERY OF WASTE TRANSFORMER OIL AND ITS PURIFICATION FROM AGEING PRODUCTS Russian patent published in 2012 - IPC C10M175/02 C10N40/16 B01D21/00 B01D57/00 C10G32/02 C10G32/04 

FIELD: chemistry.

SUBSTANCE: invention refers to method for recovery of waste transformer oil which is contained in reservoir and its purification from ageing products, and the above method involves the following operations: installation of waveguide in which a flattened hollow cone is located above transformer oil reservoir. At that, top of flattened hollow cone is directed to transformer oil coaxially to the reservoir. Oil recovery is performed due to action of water ions and molecules dropping off the surface of waveguide and hollow flattened cone and enveloping the above surfaces, due to which interaction of water ions and molecules with radicals of transformer oil, coagulation of ageing products and their settlement at the reservoir bottom occurs; as a result, recovery of waste transformer oil and its purification from ageing products is performed.

EFFECT: method allows improving electrical strength of waste transformer oil, decreasing moisture content and increasing product purity class by means of coagulation of ageing products in rotating ionic field.

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