skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Phenolic compounds containing/neutral fractions extract and products derived therefrom from fractionated fast-pyrolysis oils

Abstract

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 resinsmore » is shown to have advantages over the conventional phenol-formaldehyde resins.« less

Inventors:
 [1];  [2];  [3];  [4]
  1. (Arvada, CO)
  2. (Denver, CO)
  3. (Lakewood, CO)
  4. (Auburn, WA)
Issue Date:
Research Org.:
MIDWEST RESEARCH INSTITUTE
OSTI Identifier:
868832
Patent Number(s):
5223601
Assignee:
Midwest Research Institute Ventures, Inc. (Kansas City, MO) NREL
DOE Contract Number:  
AC02-83CH10093
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
phenolic; compounds; containing; neutral; fractions; extract; products; derived; therefrom; fractionated; fast-pyrolysis; oils; process; preparing; phenol-formaldehyde; novolak; resins; molding; compositions; portions; phenol; normally; contained; replaced; obtained; fractionating; fractionation; consists; neutralization; stage; carried; aqueous; solutions; bases; appropriate; dry; followed; solvent; extraction; organic; moderate; solubility; parameter; hydrogen; bonding; capacity; compounds-containing; extracts; lignocellulosic; material; oil; initially; ph; range; 2-4; neutralized; bicarbonate; base; extracted; approximately; 4-9; 11; cal; cm; polar; components; 8-3; recovery; product; purification; adhesives; characterized; mixture; wide; variety; chemical; functionalities; including; carbonyl; aldehyde; methoxyl; vinyl; hydroxyl; thermosetting; shown; advantages; conventional; ph range; pyrolysis oils; neutral fractions; cellulosic material; products derived; fast-pyrolysis oils; solubility parameter; pyrolysis oil; thermosetting resin; solvent extraction; organic solvent; aqueous solution; aqueous solutions; wide variety; lignocellulosic material; compounds containing; derived therefrom; preparing phenol-formaldehyde; normally contained; phenol normally; fractions extract; fractionating fast-pyrolysis; phenolic compounds; molding compounds; molding compositions; molding composition; molding compound; extract obtained; thermosetting resins; fractionated fast-pyrolysis; compounds contain; phenol-formaldehyde resin; solvent extract; /528/428/999/585/

Citation Formats

Chum, Helena L., Black, Stuart K., Diebold, James P., and Kreibich, Roland E. Phenolic compounds containing/neutral fractions extract and products derived therefrom from fractionated fast-pyrolysis oils. United States: N. p., 1993. Web.
Chum, Helena L., Black, Stuart K., Diebold, James P., & Kreibich, Roland E. Phenolic compounds containing/neutral fractions extract and products derived therefrom from fractionated fast-pyrolysis oils. United States.
Chum, Helena L., Black, Stuart K., Diebold, James P., and Kreibich, Roland E. Fri . "Phenolic compounds containing/neutral fractions extract and products derived therefrom from fractionated fast-pyrolysis oils". United States. https://www.osti.gov/servlets/purl/868832.
@article{osti_868832,
title = {Phenolic compounds containing/neutral fractions extract and products derived therefrom from fractionated fast-pyrolysis oils},
author = {Chum, Helena L. and Black, Stuart K. and Diebold, James P. and Kreibich, Roland E.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Patent:

Save / Share: