COARSE-PARTICLE SILICIC ACIDS AS SUPPORTS Russian patent published in 2015 - IPC C01B33/193 C09C1/30 B01J20/10 B01J21/08 

FIELD: chemistry.

SUBSTANCE: invention relates to novel granular silicic acids for use as catalyst supports, production and use thereof. Disclosed is a granular silicic acid with defined mercury porosimetry with pore volume (less than 4 mcm) greater than 0.90 ml/g, d_Q3=10% greater than 400 mcm and d_Q3=90% less than 3000 mcm and the ratio of the value d₅₀ without ultrasonic action to the value d₅₀ after 3-minute ultrasonic action of less than 4.00, wherein measurements are taken on a particle fraction with size ranging from 400 to 500 mcm. Also disclosed are versions of the method of producing said acid, use thereof, an absorbate based thereon and a method for production thereof, as well as use of the obtained absorbate.

EFFECT: disclosed acids enable to obtain catalysts supports that are resistant to mechanical action, which lead to minimally possible loss of pressure of a reaction mixture passing through fixed-bed reactors.

20 cl, 2 tbl, 7 ex