RAW BATCH FOR MAGNESIAN-QUARTZ PROPPANT PRODUCTION Russian patent published in 2018 - IPC C09K8/80 C04B35/20 C04B35/14 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas industry, namely to the production of ceramic proppants, in particular to the preparation of a raw mixture intended for the production of medium-density and lightweight magnesian-quartz proppants with a bulk density of 1.4–1.65 g/m³. Raw batch for the production of magnesian-quartz proppant contains a mixture of pre-calcined magnesium silicate component with a siliceous component crushed to a fraction of less than 80 microns, has in its composition 17–34 wt% MgO, the siliceous component is the waste of enrichment of sodium-potassium feldspar of Malyshevsky deposit administration with the following average chemical composition, mass% (in terms of calcined substance): SiO₂ – 84, Al₂O₃ – 9, MgO – 0.7, Fe₂O₃ – 0.5, CaO – 0.3, K₂O – 3.5, Na₂O – 2. Invention is developed in a subclaim. Technical result is expansion of the raw materials base for the production of magnesian-quartz proppant with a bulk density of 1.4–1.65 g/cm³.

EFFECT: expansion of the raw materials base for the production of magnesian-quartz proppant.

1 cl, 1 ex, 1 tbl