Alumina Processing

Cytec continues to provide the alumina industry with value-adding, efficiency-enhancing technology for all stages in Bayer Process alumina production. Cytec's technological innovations for alumina processing began with programs for the solid-liquid separation processes and the introduction of synthetic polyacrylate flocculants to replace starch.

Subsequent development of copolymers for the CCD circuit provided significant improvements in refinery economics and red mud disposal. Cytec pioneered the release of hydroxamic acid flocculants, a quantum leap in flocculant technology for the clarification circuit, providing improved economics, liquor filtration rates and reduced settler scaling.

The development of MAX HT^® Sodalite Scale Inhibitor, a revolutionary product that eliminates sodalite scale from heat exchangers throughout the Bayer Process, is another testament to Cytec’s commitment to provide technologically advanced chemistry that brings real value and contributes to the sustainability of the alumina industry.

All of Cytec's initiatives in alumina are supported by a global team of field engineers - and a vertically integrated supply chain - to support today's programs and technologies with an eye to future industry needs.

Product Summary Table
 

Flocculants	CYFLOC™ HX flocculants	Designed to increase throughput and reduce filtration costs in the Bayer Process.
	CYFLOC™ flocculants	Designed to improve washer efficiency in the Bayer Process and settling in mineral processes.
Processing Aids	MAX HT® sodalite scale inhibitor	Prevent the formation of sodalite scale in heat exchangers.
	CYQUEST® antiscalants	Control the rate of scale formation throughout milling circuits.
Humate Removal	CYQUEST® humate removal agent	Control humate levels.
Iron Removal	CYQUEST® iron removal agent	Control iron levels.
Crystal  Growth Modifiers	CYQUEST® crystal growth modifier	Enhance the agglomeration of hydrate particles in the precipitation circuit.
Dewatering Aids	AERODRI® dewatering aid	Improve liquid/solid separation in filtration processes.
Dispersants	CYQUEST® dispersant	Control harmful effects of soluble salts, clays and fines; also improve leaching.
Defoamers	CYBREAK® defoamer	Suppress existing foam in Bayer liquors.