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US 2003/0113255 A1Published application
Activated alumina and method of producing same
OwnerWayne Harlaninventor
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Abstract
An activated alumina formed by complexing a dehydrated alumina with an agglomerate blocking agent and then hydrating the activated alumina.
Claims31
A method of preparing partially hydrated activated alumina comprising:
- providing a substantially dehydrated activated alumina;
- rehydrating the substantially dehydrated activated alumina in the presence of a blocking agglomerate which forms an alumina/blocking agglomerate complex;
- and
- removing the blocking agglomerate from said complex to provide a partially hydrated activated alumina.
1 more element
A partially hydrated activated alumina prepared by:
- providing a substantially dehydrated activated alumina;
- rehydrating the substantially dehydrated activated alumina in the presence of a blocking agglomerate which forms an alumina/blocking agglomerate complex;
- and
- removing the blocking agglomerate from said complex to provide a partially hydrated activated alumina.
1 more element
Dependencies are inferred from the claim text.