.~.~.~ Preparation by degradation of carbohydrates
DEFINITION
Classification: 562/515
Preparation by degradation of carbohydrates:
(under subclass 512) Processes wherein the acids are produced by degradation of carbohydrates, e.g., paperpulp, sawdust, and sugars. Some of the acids produced are acetic, tartaric, lactic, and oxalic.
(1) Note. For the recovery of acetic acid from pyroligneous liquor (wood distillate), see subclasses 607+.
(2) Note. Reactions involving carbohydrates, other than degradation, are found in the appropriate subclasses provided therefor. For example, the production of acyclic carboxylic acids by oxidation of a monosaccharide are in subclasses 523+, especially in subclasses 527 and 531+. The reaction of glucose with HCN followed by hydrolysis to produce a polyoxy carboxylic acid is in subclass 587.
(3) Note. The oxidation of a polysaccharide to produce a carboxylate without degradation is in Class 536, Organic Compounds, in the appropriate subclasses.
