About: http://webisa.webdatacommons.org/375261469

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	After the condensation reaction is completed, the catalyst is removed from the reaction mixture by any known procedure such as neutralization and filtration, or ion exchange.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com