Title: Lime-free and sulfide-free liming process

Abstract: A continuous liming process using sodium hydroxide solution and sodium sulfate and/or sodium salts of dicarboxylic acids, instead of conventional liming components.

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Inventors: Knaflic, France (Frankenthal, DE, US)
Miller, Franz-Friedrich (Ludwigshafen, DE, US)

Application Number: 889835
Filing Date: 1978-03-24
Publication_date: 1980-10-21
Assignee: BASF Aktiengesellschaft (Ludwigshafen, DE)
Primary Class(es): 8/94.17 8/94.15, 8/94.16, 8/94.18
Other Classes:
US Patent Ref:

2123832	Jul, 1938	Jaeger et al.	8/94.
2266448	Dec, 1941	Trosken	8/94.
2639967	May, 1953	Rudy	8/94.
3254938	Jun, 1966	Rodriguez et al.	8/94.
3429648	Feb, 1969	Langley	8/94.
3751221	Aug, 1973	Elvrum	8/94.
3799737	Mar, 1973	Elvrum	8/94.
3920388	Nov, 1975	Weaver et al.	8/94.
3997290	Dec, 1976	del Cueto	8/94.

Other Refs:
Primary Examiner: Clingman, A. Lionel
Assistant Examiner:
Attorney: Keil & Witherspoon