Solid absorbent materials that are useful for absorption of chemical species from a fluid, such as a gas stream or a liquid stream. The absorbent materials are formed by spray processing and posses a well-defined chemical composition and microstructure. The absorbent materials can have a high absorption...http://www.google.es/patents/US7732372?utm_source=gb-gplus-sharePatente US7732372 - Particulate absorbent materials
