A cost effective, environment friendly and industrially viable process for the preparation of phthalocyanine compounds more particularly copper phthaiocyanine, other metal phthalocyanines and metal free phthalocyanine, the process comprising the steps of: scrubbing the waste ammonia and carbondioxide gaseous streams...
ABSTRACT
ENVIRONMENT FRIENDLY PROCESS FOR MAKING HIGH-PURITY ALUMINA
A process for the preparation of high-purity aluminium oxide (AL2O3) from the waste containing aluminium chloride, aluminium sulfate, aluminium carbide or any other aluminium salt. The said process comprises the preparation of aqueous slurr...