Effects of solids content, settling temperature, and liquor source on tall oil solubilities
Journal Article
·
· AIChE Symp. Ser.; (United States)
OSTI ID:6150884
Tall oil soap solubility in black liquors obtained from cooking pine and sweet gum, and in mixture of these liquors, was studied. As expected, solids content had a significant effect on the amount of soap remaining in settled liquors obtained from pine. Concentrating these liquors to about 30% solids reduced the soap concentration to approximately 0.8% of solids. Increasing the temperature at which the liquors were settled also increased residual tall oil soap content. Although mass balance calculations on mixtures of black liquors obtained from pine and gum show that the percentage recovery (solids basis) varies little with the inclusion of 12 to 50% hardwood black liquor, absolute recovery is increased with increased proportions of hardwood liquor. This is the result of decreased soap solubility with increased proportions of hardwood liquor. No discernable effect was observed on the proportion and composition of the acids and neutrals of the dissolved tall oil with respect to the solids content of the liquors.
- Research Organization:
- Dept. of Chemical Engineering, North Carolina State University Raleigh, NC
- OSTI ID:
- 6150884
- Journal Information:
- AIChE Symp. Ser.; (United States), Journal Name: AIChE Symp. Ser.; (United States) Vol. 80:239; ISSN ACSSC
- Country of Publication:
- United States
- Language:
- English
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