Phenolic compounds containing/neutral fractions extract and products derived therefrom from fractionated fast-pyrolysis oils
- Arvada, CO
- Denver, CO
- Lakewood, CO
- Auburn, WA
A process for preparing phenol-formaldehyde novolak resins and molding compositions in which portions of the phenol normally contained in said resins are replaced by a phenol/neutral fractions extract obtained from fractionating fast-pyrolysis oils. The fractionation consists of a neutralization stage which can be carried out with aqueous solutions of bases or appropriate bases in the dry state, followed by solvent extraction with an organic solvent having at least a moderate solubility parameter and good hydrogen bonding capacity. Phenolic compounds-containing/neutral fractions extracts obtained by fractionating fast-pyrolysis oils from a lignocellulosic material, is such that the oil is initially in the pH range of 2-4, being neutralized with an aqueous bicarbonate base, and extracted into a solvent having a solubility parameter of approximately 8.4-9.11 [cal/cm.sup.3 ].sup.1/2 with polar components in the 1.8-3.0 range and hydrogen bonding components in the 2-4.8 range and the recovery of the product extract from the solvent with no further purification being needed for use in adhesives and molding compounds. The product extract is characterized as being a mixture of very different compounds having a wide variety of chemical functionalities, including phenolic, carbonyl, aldehyde, methoxyl, vinyl and hydroxyl. The use of the product extract on phenol-formaldehyde thermosetting resins is shown to have advantages over the conventional phenol-formaldehyde resins.
- Research Organization:
- Midwest Research Institute, Kansas City, MO (United States)
- DOE Contract Number:
- AC02-83CH10093
- Assignee:
- Midwest Research Institute Ventures, Inc. (Kansas City, MO)
- Patent Number(s):
- US 5223601
- OSTI ID:
- 868832
- Country of Publication:
- United States
- Language:
- English
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compounds
containing
neutral
fractions
extract
products
derived
therefrom
fractionated
fast-pyrolysis
oils
process
preparing
phenol-formaldehyde
novolak
resins
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portions
phenol
normally
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replaced
obtained
fractionating
fractionation
consists
neutralization
stage
carried
aqueous
solutions
bases
appropriate
dry
followed
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organic
moderate
solubility
parameter
hydrogen
bonding
capacity
compounds-containing
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lignocellulosic
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initially
ph
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2-4
neutralized
bicarbonate
base
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8-3
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ph range
pyrolysis oils
neutral fractions
cellulosic material
products derived
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solvent extraction
organic solvent
aqueous solution
aqueous solutions
wide variety
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preparing phenol-formaldehyde
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fractionating fast-pyrolysis
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molding compounds
molding compositions
molding composition
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compounds contain
phenol-formaldehyde resin
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