Phenolic compounds containing/neutral fractions extract and products derived therefrom from fractionated fast-pyrolysis oils
A process is described 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.
- DOE Contract Number:
- AC02-83CH10093
- Assignee:
- Midwest Research Inst. Ventures, Inc., Kansas City, MO (United States)
- Patent Number(s):
- US 5223601; A
- Application Number:
- PPN: US 7-647020
- OSTI ID:
- 6224697
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
102000* -- Synthetic Fuels-- Products & By-Products-- (1990-)
ADHESIVES
ALDEHYDES
AROMATICS
CARBOHYDRATES
CELLULOSE
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
DECOMPOSITION
EXTRACTION
FORMALDEHYDE
FRACTIONATION
FUELS
HYDROXY COMPOUNDS
LIGNIN
MATERIALS
MOLDING MATERIALS
OILS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SOLVENTS
OTHER ORGANIC COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PH VALUE
PHENOLS
POLYMERS
POLYSACCHARIDES
PYROLYSIS
PYROLYSIS PRODUCTS
PYROLYTIC OILS
RESINS
SACCHARIDES
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENTS
SYNTHESIS
SYNTHETIC FUELS
THERMOCHEMICAL PROCESSES