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A METHOD OF SEPARATING, FROM A MIXTURE OF BLACK LIQUOR AND TALL OIL SOAP PRODUCT, CONCENTRATED PORTIONS OF TALL OIL SOAP PRODUCT AND ARRANGEMENTS FOR SAID CONCENTRATED TALL OIL SOAP PRODUCT AND/OR SEPARATED BLACK LIQUOR
A METHOD OF SEPARATING, FROM A MIXTURE OF BLACK LIQUOR AND TALL OIL SOAP PRODUCT, CONCENTRATED PORTIONS OF TALL OIL SOAP PRODUCT AND ARRANGEMENTS FOR SAID CONCENTRATED TALL OIL SOAP PRODUCT AND/OR SEPARATED BLACK LIQUOR
A continuous method and an arrangement for separation of crude tall oil (CTO) from black liquor. The method involves an initial separation within a tank and/or within a centrifugal separator, and processing of the thus separated tall oil soap product by acidulation and/or splitting, followed by further separation, e.g. by centrifugation. The black liquor fraction may be processed for further CTO retrieval, before evaporation and feeding to a recovery boiler.
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