Liquid Ammonia-Solvent Combinations in Wood Plasticization. Properties of Treated Wood

1966 ◽  
Vol 5 (2) ◽  
pp. 105-110 ◽  
Author(s):  
R. E. Pentoney
Keyword(s):  
Liquid Ammonia ◽  
Treated Wood

AMMONOLYSIS OF URONIC ESTER GROUPS IN BIRCH XYLAN

1964 ◽  
Vol 42 (11) ◽  
pp. 2434-2439 ◽  
Author(s):  
Paul Y. Wang ◽  
H. I. Bolker ◽  
C. B. Purves
Keyword(s):  
Alkaline Hydrolysis ◽  
Uronic Acid ◽  
Liquid Ammonia ◽  
Treated Wood ◽  
Hot Water ◽  
Amide Nitrogen ◽  
White Birch

Solvent-extracted white birch, kept near 20° in liquid ammonia under pressure for 72 h and then extracted with methanol to remove acetamide, retained 0.25% of amide nitrogen. Extraction of the very finely ground residual wood with hot water yielded 21% as a 4-O-methylglucuronoxylan containing 0.53% of amide nitrogen. Alkaline hydrolysis removed the amide absorption in the infrared and restored the normal xylan spectrum. These results, supported by various control experiments, showed that amide groups in the ammonia-treated wood were derived from lactone or ester groups in the original 4-O-methylglucuronoxylan. Some of the uronic acid groups in the native wood presumably existed as ester crosslinks.

Ammonolysis of titanium tetrachloride in liquid ammonia

1976 ◽  
Vol 73 ◽  
pp. 849-851 ◽  
Author(s):  
Thomas Kottarathil ◽  
Gérard Lepoutre
Keyword(s):  
Liquid Ammonia ◽  
Titanium Tetrachloride

Chemical yields from low-temperature pyrolysis of CCA-treated wood

2009 ◽  
Author(s):  
Qirong Fu ◽  
Dimitris Argyropolous ◽  
Lucian Lucia ◽  
David Tilotta ◽  
Stan Lebow
Keyword(s):  
Low Temperature ◽  
Treated Wood ◽  
Low Temperature Pyrolysis

Printing: Measuring the Penetration Properties of Starch-Treated Wood-Free Paper

2010 ◽  
Vol 25 (3) ◽  
pp. 372-379 ◽  
Author(s):  
Taina Lamminmäki ◽  
Henna Lampinen ◽  
Sari Hyvärinen ◽  
Kirsi Kataja
Keyword(s):  
Treated Wood ◽  
Free Paper
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