This problem has been addressed with unique pulping
methods called organosolv (breaking the fiber down with concentrated acetic acid or ethanol) and bio-pulping
(using fungi in place of synthetic chemicals).
The mill's pulping
and bleaching systems are relatively new and the mill's recovery boiler was extensively rebuilt in May 2005.
APPLICATION: Managers of kraft pulp mills in Chile can improve the pulping process and the quality of the pulp by setting the optimum percentage of heartwood when E.
We examined the physical and chemical properties of heartwood and looked at how an increasing percentage of heartwood influences the kraft pulping process and the quality of the pulp.
PROFILING THE WOOD AND PULPING PROPERTIES OF SOUTHERN PINE THINNING RESOURCES
APPLICATION: This study provides a road map for kraft pulping southern softwood thinnings and mature wood.
The series is designed for anyone who would benefit from a working knowledge of the pulping and papermaking process, including: paper machine operators, process and product engineers, sales and technical support staff, new employees, and students.
Identify the main pieces of equipment in the pulping and chemical recovery process
Major pulp and paper companies are already exploring a pulping
process based entirely on enzymes.
Nitrogen enters the pulp mill with wood chips and is extracted during pulping
as nitrogen-containing organic compounds and ammonia.
Biopulping is the treatment of wood chips with lignin-degrading fungi prior to pulping
Making Pulp and Making Paper is a set of 15 CD-ROMs providing more than 10 hours of self-paced, interactive instruction covering the entire pulping
and papermaking process.
With less borate required, pulping
should proceed with less pronounced side effects, such as an increase in the boiling point and an increase in the viscosity of black liquor.