A process is provided for the treatment of an alumina process feedstock prior to transferring the treated feedstock to an alumina process for extracting refined alumina from the treated feedstock. The treatment process includes: (a) heating the alumina process feedstock to a temperature of 400 C. to...http://www.google.com.au/patents/US6582670?utm_source=gb-gplus-sharePatent US6582670 - Feed processing for improved alumina process performance
