About: http://webisa.webdatacommons.org/4422146

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	U.S. Pat. No. 4,670,616 involves the production of xylenes by the methylation of toluene using a borosilicate molecular sieve which is bound by a binder such as alumina, silica, or alumina-silica.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk