Recausticizer
Proven FT-NIR application for recausticizer optimizationRecaust Challenges
Online measurements of Kraft pulping liquors have historically been a hurdle for the pulp processing industry. Traditional measurement techniques (i.e., conductivity, density, temperature and differential pressure) have only had moderate success due to scaling and fouling of their probes. Moreover, these devices lack chemical specificity. Until recently, the industry has accepted laboratory titrations as its choice method for complete liquor composition analysis.
FITNIR Solution
Today, FITNIR Analyzers provides reliable, accurate and true measurements for the broadest set of liquor properties. With the ability to provide simultaneous measurements of multiple chemical properties, minimal sample preparation, and no plugging or fouling, FT-NIR is quickly becoming the technology of choice for superior causticizing efficiency.
Properties Measured
FITNIR’s Recausticizer analyzer application measures White Liquor ABCs:
- Effective Alkali (EA)
- Active Alkali (AA)
- Sodium Carbonate (Na2CO3)
- Sodium Sulfide (Na2S)
- Causticizing Efficiency (CE)
- Sodium Sulfate (Na2SO4)
- Sodium Thiosulfate (Na2S2O3)
- Solids Content*
- Polysulphides: Active, Inactive, Total, Residual Sulfide
*FITNIR Online measurement only
^ Click on Diagram to Enlarge
Key Benefits
- $0.6 – 1.2M savings/year
- 6 – 12 months ROI
- Decreased risk of overliming
- Reduced TTA and EA variability
- Increased causticizing efficiency (CE) at target TTA
- Reduced deadload content (carbonate)
- Fewer lab tests required
Project Highlights
Clearwater Paper, Lewiston Mill
Lewiston, ID
FITNIR Online
Paper Excellence, Skookumchuck Pulp Inc.
Skookumchuck, BC, Canada
FITNIR Online
Domtar Corporation, Kamloops Mill
Kamloops, BC, Canada
FITNIR Online
Mill in US
US
FITNIR Online
Weyerhaeuser, Grande Prairie Mill
Grande Prairie, AB, Canada
FITNIR Benchtop
Domtar Inc., Espanola Mill
Espanola, ON, Canada
FITNIR Online
Mill in Northern British Columbia, Canada
Northern BC, Canada
FITNIR Online
Mill in Southern US
Southern US
FITNIR Online
Alberta-Pacific Forest Industries Inc.
Athabasca, AB, Canada
FITNIR Online
Mill in Eastern Canada
Eastern Canada
FITNIR Online
Get in Touch
Contact FITNIR Analyzers Inc. and we can work together to optimize your recausticizer operations.
Need more in-depth information?
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