Atlanta, GA.-- February 12,
2002--The chemistry behind pulping and multistage
bleaching is a fascinating subject. It is organic
chemistry in an unusual setting. Pulping is conducted
under rather extreme conditions-170oC, high levels
of sodium hydroxide, and water solvent. Even so,
the chemistry appears to follow principles associated
with milder conditions. Bleaching involves many
stages, attempting to breakdown one polymer while
preserving another. This course demonstrates how
simple organic principles can be used to understand
the chemistry of two very important industrial
processes.
The author, Dr. Donald Dimmel,
has taught pulping and bleaching chemistry to
graduate students at the Institute of Paper Science
and Technology for 20 years and is a recognized
speaker within the American Chemical Society
and the pulp and paper industry. The material
for this computerized course comes from a selection
of his graduate course slides, plus additions.
Many slides utilize modern technology to depict
reactions in pieces, emphasizing electron flow
and color-coding to facilitate understanding.
An audio description accompanies each slide.
The course is designed to
be used by undergraduate students and industrial
personnel wishing to develop a deeper understanding
of pulping and bleaching processes. The material
requires a time commitment typically associated
with a 2-credit, one-semester undergraduate course.
The computerized format allows a large amount
of material to be covered in a short time period.
The course has approximately 12 hours of material
without stopping to work out text questions.
With reflection time on the text questions, the
time more than doubles. In addition, a comprehensive
index and searching feature of the course text
provides industry professionals with a fast and
easy reference tool.
The course focuses on kraft,
soda/AQ, and sulfite pulping and on chlorine,
chlorine dioxide, oxygen-based, and biological
bleaching. The course has four Units:
Unit 1 is an overview
of organic chemistry important to pulping and
bleaching topics.
Unit 2 takes
up the subject of
the structures of
the major wood components.
Unit 3 considers
the nature and
scope of the
reactions of
pulping reagents
with typical
carbohydrate
and lignin functional
groups and the
underlying factors
that explain
differences in
the degree of
lignin versus
carbohydrate
degradation during
pulping.
Unit 4 considers
similar topics
related to bleaching
reagents and
selectivity.
To preview the course, please
request a Demonstration CD by submitting your
name and mailing address information to Robert.Patterson@ipst.gatech.edu or
submit by fax to: 404-894-5301. Insert the Demonstration
CD into your computer, and an auto-start feature
will bring up the main menu. Select Preface and
General Directions and follow the directions.
The only other active site on the main menu is
the Unit 2 title. Select it and begin.
If you have questions regarding
the course or content, please contact Donald.Dimmel@ipst.gatech.edu
For pricing information or
to place course orders, please contact:
Robert.Patterson@ipst.gatech.edu (404-894-8182
or fax 404-894-5301)
Institute of Paper Science and Technology
500 10th Street NW, Atlanta, GA 30318
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