Distillation of Resinous Wood by Saturated Steam PDF Download
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Author: Lee Fred Hawley
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 34
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Author: Lee Fred Hawley
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 34
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Author: Lee Fred Hawley
Publisher: Forgotten Books
ISBN: 9780265867433
Category :
Languages : en
Pages : 38
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Excerpt from Distillation of Resinous Wood by Saturated Steam Table 3 gives the conditions of the distillations and the results obtained. Under Size of chip the length parallel to the grain is given first. The probable error in the determinations of yields is apparently.' about 7 per cent and is due to difficulties in sampling, in regulating evaporation during the preparation of material, and in Obtaining comparable end points in different distillations. An exam; ple of results which must be due to such errors is seen in runs 23 and 24. The chips ln 1un 24 are larger than those in run 23, and the yield probably should be less, and certainly not greater, from the larger chips; yet the yields obtained from run 23 are 5 per cent less than those 110111 run 24. A similar example IS shown 1n runs 30 and 31. It might be thought that some of these variations in yields were due to incomplete distillation caused by the steam channeling through the charge ln such a way that it never touched part of the wood; but in several runs, after all possible 011 had been distilled under one set of conditions, the top of the retort was removed, the charge was well stirred, and the d1stillation continued under the same conditions as before, without any indications that the stirring had discovered undis tilled material. It seems probable, therefore, that with a retort of the shape and size used the effect of incomplete distillation clue to incomplete contact between the steam and the chips is negligible. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: L. F. Hawley
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Author: Edward Norfolk Munns
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 516
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 518
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Author:
Publisher:
ISBN:
Category : Forest products
Languages : en
Pages : 676
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![First Twenty-fifth Report of the National Committee on Wood Utilization [and Supplement to No. 24] PDF](https://books.google.com/books/content/images/frontcover/OD9YAAAAMAAJ?fife=w80-h100)
Author: United States. National committee on wood utilization
Publisher:
ISBN:
Category :
Languages : en
Pages : 672
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Author: Nelson Courtlandt Brown
Publisher:
ISBN:
Category : Forest products
Languages : en
Pages : 488
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Author:
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 1220
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Author: United States. Forest Service
Publisher:
ISBN:
Category :
Languages : en
Pages : 790
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