PROCESS FOR THE REGENERATION OF NITROCELLULOSE FROM WASTE WATER IN THE NITRIFICATION OF CELLULOSE

摘要

A process for the recovery of nitrocellulose from the filtrate obtained by filtering nitrocellulose from the aqueous reaction medium in which it has been formed by the nitration of cellulose, which process comprises flocculating nitrocellulose in the filtrate by the addition of a cationic polyacrylamide as flocculant and then filtering off the flocculated nitrocellulose on a filter having a pre-coated filter layer.