and paper industry is the biggest culprit.
Sampling at these and several other mills showed TCDD and TCDF accounted for 93 to 99 percent of the dioxin/furan toxicity in bleached pulps
and wastes, according to Gary A.
Fraser Papers") (TSX:FPS) announced today the permanent closure of its pulp
mill located in Berlin, New Hampshire.
The alkaline peroxide process generates oxalate and oxalate-related scaling in the production lines of bleached mechanical pulps
com/reports/c19990) has announced the addition of Market Pulp
Monitor to their offering
The objective of this research was to compare the papermaking properties of kraft and mechanical pulps
derived from four hybrid poplars to the same properties of pulps
derived from aspen and balsam poplar.
has produced the first commercial trial run of bleached pulp
from the Arundo Donax plant, a reed that grows wild in southern California.
In this study, the objective was to evaluate the suitability of different hardwood kraft market pulps
as raw materials for decorative papers.
Of particular importance is that "gold recoveries of over 95 percent and silver recoveries of over 80 percent can be achieved from the high-grade pulps
in a commercial pulp
agglomeration heap leach processing cycle.
A simple and precise method for quantifying carbohydrates in pulps
should prove helpful to mills when process parameters are changed or when yield-increasing additives are introduced.
Rayonier's high-purity chemical cellulose pulps
are used by manufacturers of filters, textile fibers, ethers, impact-resistant plastics, films and in other specialized industrial products.
Moreover, we found that wet tensile strength further improved when the TEMPO-oxidized pulps
were combined with alum addition in the handsheet-making process, while dry tensile strength decreased to some extent.
This new center maintains Rayonier's strategy of being the premier, worldwide specialty pulp
supplier and demonstrates our commitment to continually develop high-quality pulps
that best meet our customers' needs," W.
It shows the effects of using different mixtures of this valuable wood resource to produce pulps
of differing physical properties.
This may allow mills to choose a bleaching process based on market demand for the respective pulps
, rather than a perceived difference in environmental performance.