Reducing aluminosilicate scale in the Bayer process

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United States of America Patent

PATENT NO 9944534
SERIAL NO

15346106

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention provides a method of inhibiting the accumulation of DSP scale in the liquor circuit of Bayer process equipment. The method includes adding one or more particular silane 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)

  • ECOLAB USA INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
La, Timothy Kardinya, AU 11 26
Phillips, Everett C Batavia, US 18 113
Sawant, Kailas B Aurora, US 20 94

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