liquate
verb
li·quate ˈlī-ˌkwāt 
liquated; liquating
transitive verb
: to cause (a more fusible substance) to separate out of a combination or mixture by the application of heat
liquate lead from its ore
liquation
lī-ˈkwā-shən
noun 
Word History
Etymology
Latin liquatus, past participle of liquare to make liquid; akin to Latin liquēre
First Known Use
circa 1859, in the meaning defined above