Macroporous microspheroids and a process for their manufacture

Details Macroporous microspheroids and a process for their manufacture Macroporous microspheroids and a process for their manufacture

B - Operations, Transporting

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252/1.F

B01D 15/08 (2006.01) B01J 13/02 (2006.01) B01J 20/28 (2006.01) B01J 35/08 (2006.01) C04B 14/00 (2006.01) C04B 18/02 (2006.01) C09C 1/00 (2006.01) C09C 1/28 (2006.01) E04C 5/07 (2006.01)

Patent

CA 1087593

ABSTRACT OF THE DISCLOSURE Disclosed herein is a powder of discrete, macroporous, microspheroids, each having an average diameter in the range of 2 to 50 microns and each composed of a plurality of large col- loidal particles joined and cemented together at their points of contact by 1 to 10% by weight of non-porous, amorphous silica. These microspheroids have a high degree of mechanical stability and a surface area between about 80 and 110% of that of the large colloidal particles. Also disclosed is a process for the manu- facture of this powder. The microspheroids are useful as column packings for chromatography, particularly liquid chromatography, as catalysts or catalyst bases, and as pigments.

261031

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