发明名称 |
MACROPOROUS MICROSPHEROIDS AND A PROCESS FOR THEIR MANUFACTURE |
摘要 |
<p>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 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 manufacture of this powder. The microspheroids are useful as column packings for chromatography, particularly liquid chromatography, as catalysts or catalyst bases, and as pigments.</p> |
申请公布号 |
CA1087593(A) |
申请公布日期 |
1980.10.14 |
申请号 |
CA19760261031 |
申请日期 |
1976.09.13 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
ILER, RALPH K.;KIRKLAND, JOSEPH J. |
分类号 |
C09K3/00;B01D15/08;B01J13/02;B01J20/10;B01J20/28;B01J20/281;B01J21/00;B01J35/08;C04B14/00;C04B18/02;C09C1/00;C09C1/28;C09C3/00;C09C3/06;E04C5/07;G01N30/88;(IPC1-7):01D15/08 |
主分类号 |
C09K3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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