Topic
Activated alumina
About: Activated alumina is a research topic. Over the lifetime, 1430 publications have been published within this topic receiving 31090 citations.
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TL;DR: A novel (LDH)-based hybrid adsorbent LALDH-201 is developed by impregnating nanocrystalline Li/Al LDHs (LADLH) inside a commercial polystyrene anion exchanger D201 with promising results for water defluoridation in scaled-up application.
80 citations
Patent•
23 May 1994Abstract: Oxidation catalyst compositions include a catalytic material having a BET surface area of at least about 10 m 2 /g and consisting essentially of a combination of bulk ceria and a bulk second metal oxide which may be one or more of titania, zirconia, ceria-zirconia, silica, alumina-silica and α-alumina The combination may optionally also include activated alumina having a BET surface area of at least about 10 m 2 /g The ceria, second metal oxide and optional activated alumina may be mixed together or provided as discrete layers Optionally, one of platinum or palladium metal may be dispersed on the catalytic material provided that the platinum, when used, is used in limited amounts to preclude excessive oxidation of SO 2 to SO 3 The catalyst compositions may be used for oxidation of oxidizeable components in a gas-borne stream, eg, in a method to treat diesel engine exhaust by contacting the hot exhaust with the catalyst composition to promote the oxidation of the volatile organic fraction The optional inclusion of platinum or palladium promotes the oxidation of gas phase components, eg, hydrocarbons and carbon monoxide
80 citations
TL;DR: Aluminum oxide coated pumice (AOCP) was found to be effective in creating hard surface sites for fluoride adsorption, in accordance with the hard and soft acids and bases (HSAB) concept as discussed by the authors.
79 citations
TL;DR: In this article, the pore size change in the course of methane decomposition over activated carbons indicates that the catalytic reaction occurs mainly in the micropores of active alumina.
78 citations
TL;DR: In this paper, the extruded CaO-based catalysts are prepared and used for the synthesis of glycerol carbonate from glycerols and dimethyl carbonate, and the effects of binders (diatomite, kaolin, and activated alumina), pore-forming agents (polyacrylamide, activated carbon, and polyethylene glycol), and calcination temperatures (700,°C, 800 ¼ c, and 900,°c) on the catalytic activity and stability of the catalyst are investigated.
76 citations