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

1976-06-15

1978-01-24

Adee, John

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

55 67, 55386, 210198C, 252317, 252454, B01D 1508

Patent

active

040702863

ABSTRACT:
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 colloidal particles joined and cemented together at their points of contact by 1 to 10% by weight of nonporous, 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 manufacture of this powder.

REFERENCES:
patent: 3328230 (1967-06-01), Levecque et al.
patent: 3505785 (1970-04-01), Kirkland
patent: 3635824 (1975-05-01), Helgesson et al.
patent: 3635824 (1972-01-01), Brandes
patent: 3782075 (1974-01-01), Kirkland
patent: 3855172 (1974-12-01), Iler et al.
patent: 3920578 (1975-11-01), Yates

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