Surfactant based small molecules for reducing aluminosilicate scale in the Bayer process

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United States of America Patent

PATENT NO 9988282
SERIAL NO

15237841

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Abstract

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The invention provides methods and compositions for inhibiting the accumulation of DSP scale in the liquor circuit of Bayer process equipment. The method includes adding one or more GPS-surfactant based small molecules to the liquor fluid circuit. These scale inhibitors reduce DSP scale formation and thereby increase fluid throughput, increase the amount of time Bayer process equipment can be operational and reduce the need for expensive and dangerous acid washes of Bayer process equipment. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process.

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Patent Owner(s)

Patent OwnerAddress
ECOLAB USA INC1 ECOLAB PLACE SAINT PAUL MN 55102

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kildea, John David Baldivis, AU 4 9
La, Timothy Kardinya, AU 11 28
Urbani, Carl Nicholas Lesmurdie, AU 3 11

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