Precipitated silica particles for cat litter

摘要

The invention pertains to precipitated silica particles having edged surfaces and a length : width : depth ratio of 1 : 1 : 1 to 3 : 3-1 : 1 with the length being 0.25 to 15 mm, an absorbing capacity PV water (%) >125, a pore volume PV Hg (ml/g) 0.8-4, a pore volume PV N2 (ml/g) 0.2-1.5, a bulk density BD (g/l) 200-500, and a pH <8, for use a cat litter.