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Easy to use and fairly inexpensive, the method involves an enzymatic hydrolysis of the pulp followed by a second hydrolysis with trifluoroacetic acid (TFA).
Fleet says OSB mills are struggling much the same as pulp and paper mills due to the combination of energy prices, a high Canadian dollar and a declining U.
How the Ningbo Xiaogang mill is a microcosm of the Chinese pulp and paper industry
In Sweden, pulp mills have to meet stringent standards, and were required to reduce chlorine content by 90 percent as early as 1993.
We have shown that sex ratios of eelpout broods in the vicinity of a pulp mill were male biased in 1997, 1998, and 2000.
Because of the fiber morphology, the pulp fibrils have a surface of aromatic rings and amide groups.
Why Veracel developed long-term partnerships to help operate its new pulp mill
Projects included a new wood room in 1982 which handles 700,000 cords per year (predominantly jack pine and spruce), a new pulp machine in 1982 which produces 780 metric tons of bleached kraft pulp per day, a stud mill in 1983 with a running capacity of 265,000 board feet per day and a new white-paper machine which produces 300 metric tons of white paper per day.
This suggests, Silbergeld says, that focusing on dioxins and furans should not obscure the more general problem--the generation of a whole host of potentially toxic compounds through chlorine bleaching of pulp.
On a proforma basis, considering the asset swap with International Paper that will become effective in February 2007, Votorantim Celulose e Papel (VCP) is the third largest producer of market pulp and uncoated paper in Brazil and the leading manufacturer of coated paper.
Earlier in the year, analysts were expecting the trend of increasing prices in the pulp industry to come to a halt.
2], papermakers may be able to decrease oxalate-related scaling without sacrificing brightness in bleached mechanical pulp.