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Title: A comprehensive program to develop correlations for the physical properties of kraft black liquors. Interim report No.3

Technical Report ·
DOI:https://doi.org/10.2172/10182091· OSTI ID:10182091

The black liquor properties program has conducted a systematic collection data of properties, liquor composition, and lignin characteristics. Complete data, except for some density data, has been collected for Slash Pine black liquors made by experimental pulping at a total of 25 different pulping conditions that cover the entire range used for commercial pulping. In addition, complete data has been collected for some mill liquors and partial properties or composition data has been collected on Slash Pine black liquors made at 16 different pulping conditions and some mill liquors. Data reduction methods have been developed or extended for correlation of viscosity, heat capacity, heat of dilution, and density. Correlation of properties to pulping conditions and of composition to pulping conditions has begun. In most cases, data reduction methods have been developed that are fundamentally based and that have been shown to be generally applicable to all black liquors. While it has not proven to be possible to include research for comprehensive correlations for properties for liquors from other species, we have shown that the behavior of liquors made from other species is similar to that which has been explored extensively for Slash Pine liquors. This report reviews the methods used, describes examples of data reduction methods that have been developed, and presents some preliminary results for correlation of liquor composition and properties to pulping conditions for Slash Pine black liquors.

Research Organization:
Florida Univ., Gainesville, FL (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
FG02-85CE40740
OSTI ID:
10182091
Report Number(s):
DOE/CE/40740-3; ON: DE94000363
Resource Relation:
Other Information: PBD: Sep 1993
Country of Publication:
United States
Language:
English