Fluidizing device for solid particulates
    7.
    发明授权
    Fluidizing device for solid particulates 失效
    固体颗粒物流化装置

    公开(公告)号:US4620795A

    公开(公告)日:1986-11-04

    申请号:US625327

    申请日:1984-06-27

    CPC分类号: B65D88/68

    摘要: A flexible whip or a system of whips with novel attachments is suspended in a hopper and is caused to impact against fibrous and irregularly shaped particulates in the hopper to fluidize the particulates and facilitate the flow of the particulates through the hopper. The invention provides for the flow of particulates at a substantially constant mass flow rate and uses a minimum of energy.

    摘要翻译: 具有新颖附件的柔性鞭子或鞭子系统悬挂在料斗中,并且被引到料斗中的纤维状和不规则形状的颗粒上,以使颗粒流化并促进颗粒流过料斗。 本发明提供了基本上恒定的质量流率的微粒的流动并且使用最小的能量。

    Phenolic compounds containing/neutral fractions extract and products
derived therefrom from fractionated fast-pyrolysis oils
    10.
    发明授权
    Phenolic compounds containing/neutral fractions extract and products derived therefrom from fractionated fast-pyrolysis oils 失效
    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

    公开(公告)号:US5223601A

    公开(公告)日:1993-06-29

    申请号:US647020

    申请日:1991-01-29

    摘要: 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.

    摘要翻译: 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。