SEALING MIXTURE FOR CONNECTIONS OF PROCESSING EQUIPMENT OF OIL PRODUCING AND REFINING ENTERPRISES, OPERATING IN AGGRESSIVE ENVIRONMENTS AT HIGH TEMPERATURES Russian patent published in 2022 - IPC C09K3/10 C09J1/02 C09J11/02 C09J11/08 

FIELD: oil industry.

SUBSTANCE: invention relates to a sealing mixture intended for sealing process equipment, including process furnaces and boiler equipment, in the oil refining and petrochemical industries. High temperature sealant contains, wt. %: sodium silicate 20-30; fine kaolin chamotte with a particle size of 0.2-0.4 microns 8-12; hollow microspheres of sodium-calcium borosilicate glass with a size of 0.15-0.25 microns 8-12; magnesium oxide 7-10; zinc oxide 25-30; boron nitride 1-2; silicon dioxide 2-4; microfiber of polymer fibers from 1 mm to 2.5 mm 2-3; adhesion promoter silane A-187 3-5; dispersant CHP-500 5-15; high-temperature silicone emulsion Wacker-50E 5-15.

EFFECT: effectiveness of using the sealant at temperatures up to +1000 ° C, the elasticity and stability of the sealant when working in aggressive chemical environments, the possibility of using it for sealing oil-producing and oil-refining equipment without turning it off.

1 cl, 6 dwg, 5 tbl