METHOD AND ASSEMBLY FOR PROCESSING CELLULOSE PULP OF WOOD PROCESSING INDUSTRY
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United States of America Patent
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Oct 19, 2015
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Sep 1, 2009
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A method of and an apparatus for processing cellulose pulp of wood processing industry. The method and assembly may be used, on one hand, as a pressure diffuser for washing the pulp before an oxygen stage and, on the other hand, the separation of soap, gas and/or other light materials from filtrates and from black liquor of a cellulose mill in a pressurized device, as well as the new process connections enabled by the method. The method and apparatus may process filtrates from brown stock washing and bleaching as well as black liquors from a digesting department and an evaporation plant. By way of example, the filtrate of the washing department is pumped to the digesting department of a sulfate cellulose mill as well as the black liquor taken from the digesting department to an evaporation plant.
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