METHOD OF OBTAINING ORGANO-MINERAL ADDITIVE TO BUILDING MATERIALS Russian patent published in 2015 - IPC C02F11/14 C04B18/00 

FIELD: chemistry.

SUBSTANCE: method consists in mixing oil-containing sludge with quicklime, preliminarily milled to a finely dispersed condition, and waste silica gel, which represents the gas industry waste product at the stage of natural gas drying, with the following introduction of water. The necessary quantity of water for slaking is determined stoichiometrically including water, present in the oil-containing sludge, and water-absorption of waste silica gel. The obtained organo-mineral additive is exposed until the process of calcium-silicate structure formation is finished. First, the quantity of oil-products in the oil-containing sludge is determined, which is then used to calculate the necessary quantity of quicklime. The obtained data are used to calculate the necessary quantity of waste silica gel. The obtained organo-mineral additive meets ecological safety requirements.

EFFECT: invention is aimed at the elimination of environmental pollution with wastes, their involvement into resource-circulation and ensures rational nature management.

2 cl, 2 dwg, 3 tbl, 2 ex