Plasticized coal tar pitch, composition containing same and its use
    1.
    发明授权
    Plasticized coal tar pitch, composition containing same and its use 失效
    增塑煤焦油沥青,组合物含有它及其用途

    公开(公告)号:US4304606A

    公开(公告)日:1981-12-08

    申请号:US046399

    申请日:1979-06-06

    IPC分类号: C08L95/00 E01C7/18 C09D3/24

    CPC分类号: C08L95/00

    摘要: This invention relates to a plasticized coal tar pitch comprising a mixture consisting essentially of about 50 to about 80 weight percent of a coal tar pitch having a softening point of about 40.degree. to about 75.degree. C. (Kramer-Sarnow); and about 50 to about 20 weight percent of a coal tar fraction rich in crystals and having a boiling point of about 350.degree. C. to about 450.degree. C. The mixture is suitable for blending with crude oil bitumen for producing a binder suitable for application to roadways.

    摘要翻译: 本发明涉及一种增塑煤焦油沥青,其包含基本上由约50至约80重量%的软化点为约40至约75℃的煤焦油沥青(Krämer-Sarnow)组成的混合物; 和约50至约20重量%的富含结晶并且沸点为约350℃至约450℃的煤焦油馏分。该混合物适于与原油沥青共混以生产适合于应用的粘合剂 到道路。

    Process for the separation of resinous substances from coal-base heavy
oils and use of the fraction obtained
    3.
    发明授权
    Process for the separation of resinous substances from coal-base heavy oils and use of the fraction obtained 失效
    从煤基重油中分离树脂物质的方法和使用得到的馏分

    公开(公告)号:US4582591A

    公开(公告)日:1986-04-15

    申请号:US637934

    申请日:1984-08-06

    摘要: Heavy oil derived from coal is diluted with organic solvent to a content of less than 10 weight percent of toluene-insoluble material. The mixture is then mixed with a non-aromatic solvent in a ratio of 1:3 to 5:1. With slow stirring of the heavy phase at a temperature of between 50.degree. and 200.degree. C., this mixture is separated into a pumpable TI-poor and a pumpable TI-rich fraction under the action of gravity, with a settling-surface load of up to 1 metric ton/m.sup.2 hour. No .beta.-resins are precipitated from these fluid fractions. No tacky, rubber-like sediment is formed from the TI-rich fraction. The fractions are distillatively separated from the solvents, which can be reused. The TI-poor fraction can be used, for example, as a carbon-black oil component or can be processed further to an impregnating agent for carbon shapes. Binders for carbon shapes or cokes are obtained from the TI-rich fraction.

    摘要翻译: 来自煤的重油用有机溶剂稀释至小于10重量%的甲苯不溶物质的含量。 然后将混合物与非芳族溶剂以1:3至5:1的比例混合。 在50至200℃的温度下缓慢搅拌重相,将该混合物在重力作用下分离成可泵送的TI-贫和可泵送的富含TI的级分,其沉降面负荷 高达1公吨/平方米小时。 没有β-残基从这些流体组分中沉淀出来。 由富含TI的部分形成不粘的橡胶状沉淀物。 馏分与溶剂蒸馏分离,可以重复使用。 TI不良部分可以用作例如炭黑油组分,或者可以进一步加工成用于碳形状的浸渍剂。 用于碳形状或焦炭的粘合剂可从富含TI的部分获得。