Calfree, Halter & Griswold, LLP
Recovery of alumina trihydrate during the Bayer process using scleroglucan
The invention provides methods and compositions for improving the production of alumina. The invention involves adding a product containing one or more polysaccharides to liquor within the fluid circuit of the production process, where one of the polysaccharides is scleroglucan. The use of scleroglucan can impart a number of advantages including at least some of: greater flocculation effectiveness, increasing the maximum effective dosage, faster settling rate. The production process can be a Bayer process.
Nalco Company
C C
C01F C01F
inventional inventional
Xiaojin Harry Jing Ryan Heinrich E. John D.
Li Wang Chester Bode Kildea