公开(公告)号：US3677938A

公开(公告)日：1972-07-18

申请号：US3677938D

申请日：1970-03-18

Applicant: PECHINEY SAINT GOBAIN

Inventor： PAGE MADELEINE A LE ,  VRIES ALBERT J DE

IPC: B01J20/10 ,  B01J21/00 ,  B01J23/02 ,  C01B33/113 ,  C01B33/16 ,  C04B18/02 ,  B01D15/08

CPC classification number: C04B18/027 ,  B01J20/10 ,  B01J20/103 ,  B01J21/00 ,  B01J23/02 ,  C01B33/113 ,  C01B33/16 ,  C04B18/021

Abstract: THIS INVENTION IS ADDRESSED TO THE CHROMATOGRAPHIC SEPARATION PROCESS USING COLUMNS FILLED WITH POROUS SILICA PARTICLES IN WHICH THE POROUS SILICA PARTICLES ARE FORMED BY CALCINATION OF SILICA GEL AT TEMPERATURES WITHIN THE RANGE OF 400-1000*C. WITH THE SILICA GEL CONTAINING FOREIGN ATOMS SUCH AS ALKALI METAL CATIONS AND ACIDIC ANIONS SUCH AS SULFUR, ETC.

公开(公告)号：US3696053A

公开(公告)日：1972-10-03

申请号：US3696053D

申请日：1970-03-18

Applicant: PECHINEY SAINT GOBAIN

Inventor： PAGE MADELEINE A LE ,  BEAU RAYMOND ,  DUCHENE JACQUES

IPC: C01B33/113 ,  B01J11/82 ,  B01J11/36

CPC classification number: C01B33/113

Abstract: THIS INVENTION IS ADDRESSED TO SILICA GEL GRAINS CONTAINING FOREIGN IONS INCLUDING AN ALALI METAL CATION, WHEREIN THE ALKALI METAL IS SELECTED FROM A GROUP CONSISTING OF LITHIUM, SODIUM, POTASSIUM AND CERSIUM, ALONG WITH AN ACIDIC ANION SELECTED FROM A GROUP CONSISTING OF SULFATE, PHOSPHATE, CHLORIDE, BROMIDE AND IODIDE ANIONS, AND TO METHODS FOR THEIR PREPARATION.