Hollow porous microspheres made from dispersed particle composit

Catalyst – solid sorbent – or support therefor: product or process – Solid sorbent – Aluminum containing

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65 214, 264 43, 264129, 264131, 428402, 428 24, 43524022, 501 84, 502400, 502527, 521 56, 521919, B01J 2008, B01J 2028, B32B 106

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052121437

ABSTRACT:
Hollow porous microspheres of substantially uniform diameter and of substantially uniform wall thickness are disclosed. The walls of the hollow microspheres comprise sintered together particles which define interconnecting voids within the walls and a single central cavity in the interior of the microspheres and inner and outer microsphere wall surfaces. The interconnecting voids are continuous and extend from the outer wall surface to the inner wall surface. The walls have substantially uniform void content and the interconnecting voids are substantially uniformly distributed in the walls of the hollow microspheres and the walls of the hollow microspheres are free of latent solid or liquid blowing gas materials and are substantially free of relatively thinned wall portions and bubbles.

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