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Title: Settling and filtration characteristics of carbonated black liquor from agro based paper mill
Authors: Mandavgane, S A
Subramanian, D
Keywords: Black liquor
Issue Date: Feb-2006
Publisher: CSIR
IPC CodeG21F9/10
Abstract: The chemical pulping of agricultural residues poses no problem however major difficulty arises in recovery of heat and chemicals from cooking chemical (black liquor) due to presence of silica in it, at every stage of chemical recovery. Desilication of black liquor is achieved by carbonation effecting delignification. Filtration is a key unit operation in successful desilication technology. Low temperature and low flocculent dose is found to favor sedimentation rate. Filtration of carbonated black liquor using leaf filter shows that temperature favors rate of filtration. Co-precipitation of lignin makes filtration difficult.
Page(s): 169-173
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.65(02) [February 2006]

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