No abstract

Conversion of Units This paper presents a fundamental analysis of the Multiply By To obtain processing steps in the production of methanol from southern red oak (Quercus falcata Michx.) by two-stage 1 kilogram (kg) 2.205 pounds dilute sulfuric acid hydrolysis. Data for hemicellulose and cellulose hydrolysis are correlated using models. 1 tonne = 1,000 kg 1.102 tons (U.S.) This information is used to develop and evaluate a process design.

No abstract

Hemicellulose molecules available for fiber-fiber bonding should also be among those most readily extracted by alkali. With this premise in mind the extraction rates of hemicellulose from chemical pulps were examined and interpreted as being dependent on hemicellulose distribution. Measurements of the rates of extraction of glucuronoxylan and glucomannan from primarily southern pine oxygen pulps showed that the bulk of hemicellulose was not immediately available to extraction. After a few seconds of initial rapid extraction by 6% NaOH, removal rates quickly decreased but extraction continued indefinitely. Adsorbed hemicellulose by comparison was initially more rapidly extracted. most rapidly extracted from high-yield oxygen pulps was associated with lumens and large pores. of the xylan and 2-3% of the glucomannan) was estimated to be the maximum amount potentially, but not necessarily, available for fiber-fiber bonding.

No abstract