Title:
Kinetics of Ba(OH)₂ Reaction with Na₂CO₃ and Na₂SO₄ & Particle Separation Characteristics from White Liquor
Kinetics of Ba(OH)₂ Reaction with Na₂CO₃ and Na₂SO₄ & Particle Separation Characteristics from White Liquor
Files
Authors
Quesada, Alexander L.
Authors
Advisors
Advisors
Associated Organizations
Organizational Unit
Series
Series
Collections
Supplementary to
Permanent Link
Abstract
The purpose of this study is to determining the feasibility of replacing causticizing
(calcium based reactions and precipitate) with bausticizing (barium based reactions and
precipitates). Bausticizing is not limited by chemical equilibrium and thus can proceed to
full conversion eliminating the dead load of inert sodium carbonate in the white liquor.
The comparison is centered on the kinetics and conversion as well as precipitate
sedimentation.
BaCO₃ and BaSO₄ approach full conversion (97.7% and 95.9% respectively) after a 5 to
10 second reaction at room temperature with 0.1M feed solutions (Ba(OH)₂, Na2CO₃, and
Na2SO₄). Barium mud settling behavior is comparable to that of lime mud and can
possibly be carried out by existing sedimentation tanks within a pulp mill.
Sponsor
Date Issued
2003-04-16
Extent
723200 bytes
Resource Type
Text
Resource Subtype
Masters Project
Project Report
Project Report