PROCESS FOR PRODUCING HIGH SOLIDS COLLOIDAL SILICA
摘要
The invention provides a method for improving the effectiveness of colloidal silica. The method involves removing enough charged impurities from the colloid to prevent the charged particles from causing the colloid to become a viscous gel. The method however also involves not removing too many charged particles so the silica material doesn't gel by cross-linking with itself. This method is quite effective because it recognizes that materials that have accumulated during the formation of the colloid do perform an important function, but they can perform better at a lower concentration.
申请公布号
EP2964576(A4)
申请公布日期
2016.10.05
申请号
EP20140761019
申请日期
2014.02.09
申请人
ECOLAB USA INC.
发明人
WONG SHING, JANE B.;CHEN, ZHI;MACDONALD, DENNIS;DOLES, RONALD S.;BAI, WEN;MILLER, RAYMOND, D., JR.