LABORATORY TESTING FOR SECONDARY EFFECTS OF BAYER PROCESS ADDITIVES
Taylor, A. and Thomas, D.
Any chemical additive or other material that enters the Bayer circuit has the potential to impact productivity. These additives are routinely screened to detect any adverse effects on precipitation. This screening process often does not take into account accumulation of the additive within the Bayer process.
This paper outlines improved laboratory procedures for testing the impact of additives on precipitation. The method involves both dosed response and partition testing. The partition testing results are used to determine the potential accumulation of the additive in Precipitation. Combined with the dosed response data, this provides a more quantitative estimate of the potential adverse impact of the additive.
Examples of the application of this method are presented.