公开(公告)号：US20170240430A1

公开(公告)日：2017-08-24

申请号：US15315825

申请日：2015-05-30

Applicant: Brisil Technologies Private Limited

Inventor： Abhisek Poddar ,  Nikhaar Jain ,  Tanmay Pandya

IPC: C01B33/193 ,  C08K3/36 ,  C09C1/30

CPC classification number: C01B33/193 ,  C01P2004/50 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/17 ,  C08K3/36 ,  C08K2201/006 ,  C08K2201/011 ,  C09C1/3027 ,  C08L21/00

Abstract: The present invention provides highly dispersible precipitated silica having improved structure and properties for use as reinforcing filler in elastomeric compositions and method of preparation thereof. The present invention further provides an alkaline silicate solution having reduced dielectric constant by digesting biogenic silica source with alkaline solution such that soluble organic compounds present in the biogenic silica source leach into the alkaline silicate solution. The alkaline silicate solution obtained as above is then acidified with a mineral acid under particular conditions of pH, temperature, time etc. to obtain the highly dispersible precipitated silica of the present invention.