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    • 8. 发明授权
    • Phenolic compounds containing/neutral fractions extract and products
derived therefrom from fractionated fast-pyrolysis oils
    • 含有/中性馏分的酚类化合物提取物和从分馏的快速裂解油衍生的产物
    • US5223601A
    • 1993-06-29
    • US647020
    • 1991-01-29
    • Helena L. ChumStuart K. BlackJames P. DieboldRoland E. Kreibich
    • Helena L. ChumStuart K. BlackJames P. DieboldRoland E. Kreibich
    • C07C37/52C07C37/72C08G8/08C08G8/28C08L61/04C08L97/00
    • C08G8/28C07C37/52C07C37/72C08G8/08C08L61/04C08L97/00Y10T428/31906Y10T428/3196
    • 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.
    • 制备苯酚 - 甲醛酚醛清漆树脂的方法和其中通常在所述树脂中含有的苯酚部分被从分馏快速热解油获得的酚/中性馏分提取物代替的成型组合物。 分馏由中和阶段组成,其可以在干燥状态下用碱或适当碱的水溶液进行,然后用至少具有中等溶解度参数和良好氢键能力的有机溶剂进行溶剂萃取。 通过从木质纤维素材料中分馏快速裂解油获得的含酚化合物/中性馏分提取物使得油最初处于2-4的pH范围内,用碳酸氢盐水溶液中和,并萃取到具有 在1.8-3.0范围内极性组分的溶解度参数为约8.4-9.11 [cal / cm3] 1/2,2-4.8范围内的氢键组分和不经进一步纯化从溶剂中回收产物提取物 需要用于粘合剂和模塑料。 产品提取物的特征在于具有多种化学官能度的非常不同的化合物的混合物,包括酚类,羰基,醛,甲氧基,乙烯基和羟基。 使用产品提取物对苯酚 - 甲醛热固性树脂显示出优于常规酚醛树脂的优点。