Process for producing phenolic compounds from lignins

Patent · Thu Jan 01 00:00:00 EST 1998

OSTI ID:871842

Agblevor, Foster A ^[1]

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1. Lakewood, CO

A process for the production of low molecular weight phenolic compounds from lignins through the pyrolysis of the lignins in the presence of a strong base. In a preferred embodiment, potassium hydroxide is present in an amount of from about 0.1% to about 5% by weight, the pyrolysis temperature is from about 400.degree. C. to about 600.degree. C. at atmospheric pressure, and the time period for substantial completion of the reaction is from about 1-3 minutes. Examples of low molecular weight phenolic compounds produced include methoxyphenols, non-methoxylated phenols, and mixtures thereof.

• Research Organization: Midwest Research Institute, Kansas City, MO (United States)
• DOE Contract Number: AC36-83CH10093
• Assignee: Midwest Research Institute (Kansas City, MO)
• Patent Number(s): US 5807952
• OSTI ID: 871842
• Country of Publication: United States
• Language: English

Related Subjects

process
producing
phenolic
compounds
lignins
production
molecular
weight
pyrolysis
presence
strong
base
preferred
embodiment
potassium
hydroxide
amount
temperature
400
degree
600
atmospheric
pressure
time
period
substantial
completion
reaction
1-3
minutes
examples
produced
methoxyphenols
non-methoxylated
phenols
mixtures
pyrolysis temperature
preferred embodiment
molecular weight
time period
atmospheric pressure
potassium hydroxide
strong base
compounds produced
phenolic compounds
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