Take 5litre plastic jar,make amalgamation,after yours aliuminium is ready,add 100mil metylamine 40% into metanol,add 10mil bmk,mix,and add to the reaction vessel,,and wait until starts heating,add ballon,and shake every 10 min 2h ,add some Naoh,and wait 2h more,then all aliuminium disolves and becomes grey sludge,distill, and hcl gas,or any other metod you choise,but first read basics,how to make good amalgamation.