Polysulfide Cooking with Paprilox^®

Higher pulp yield, greater mill throughput, improved fiber properties and reduced environmental emissions!

Paprilox^® is a mill proven technology to generate polysulfide, a chemical used to enhance yield in chemical pulping. Applicable to any kraft pulp mill, the Paprilox^® process uses a combination of lime mud, manganese dioxide and oxygen to convert the white liquor in a mill's recausticization plant to orange polysulfide liquor. The process was developed by Paprican and implemented at a Paprican Member Mill. NORAM has been assigned the license for Paprilox^® throughout North America. NORAM is working in cooperation with Kvaerner Pulping AB, Air Liquide Inc. and Paprican in the on-going development of Paprilox^®.

Benefits of Polysulfide:
· Pulp yield increased by 2-3% resulting in wood savings of 4-6%.
· Increased mill throughput by up to 8-12% in recovery-limited mills.
· Improved pulp properties including beatability, bonding, fiber strength and cellulose
  molecular weight.
· Reduced mill odor.
· Potential to reduce kappa number at constant yield resulting in lower bleach chemical
  costs and lower environmental emissions including AOX, COD, etc.

Benefits of Paprilox^®:
· Low capital cost; pays for itself in as little as six months.
· Mill proven; simple, robust operation with low operating cost.
· High reaction selectivity and efficiency.
· Low space requirement.