Tree felling device
    1.
    发明授权
    Tree felling device 失效
    树木粉碎装置

    公开(公告)号:US3835901A

    公开(公告)日:1974-09-17

    申请号:US41539573

    申请日:1973-11-13

    申请人: JONSSON K

    发明人: JONSSON K

    IPC分类号: A01G23/08 A01G23/091 B27B5/14

    摘要: A rotary saw ring formed as an annular segment of a spherical bowl and adapted to be swung around the centre of an imagined sphere, in which said segment ring is included.

    摘要翻译: 旋转锯环形成为球形碗的环形部分,并且适于围绕想象的球体的中心摆动,其中包括所述分段环。

    Method for separation of tungsten chloride from a mixture of metal chlorides
    2.
    发明授权
    Method for separation of tungsten chloride from a mixture of metal chlorides 失效
    从金属氯化物混合物中分离硝化钨的方法

    公开(公告)号:US3711592A

    公开(公告)日:1973-01-16

    申请号:US3711592D

    申请日:1971-05-17

    申请人: JONSSON K SVANSTROM E

    发明人: JONSSON K SVANSTROM E

    IPC分类号: C01G41/00 C22B34/36

    CPC分类号: C22B34/36 C01G41/00

    摘要: Tungsten hexachloride is separated from a mixture of metal chlorides comprising tungsten pentachloride and other metal chlorides by first distilling the mixture so as to remove lower boiling chlorides than tungsten pentachloride. The mixture is then chlorinated, preferably at a temperature around that of the boiling point of the tungsten pentachloride. Generally the chlorination will be continued as the temperature of the mixture is increased to about the boiling point of tungsten hexachloride. The chlorination is continued until essentially all of the pentachloride has been converted to hexachloride. The hexachloride may be distilled from higher boiling chlorides if they are present in the mixture to thereby obtain a high purity product which can be converted to tungsten metal by reduction.

    摘要翻译: 通过首先蒸馏该混合物以将六氯化钨与包含五氯化碳和其它金属氯化物的金属氯化物的混合物分离,以除去比五氯化碳更低沸点的氯化物。 然后将混合物氯化,优选在五氯化钨沸点附近的温度下进行氯化。 通常,当混合物的温度升高至大约六氯化钨的沸点时,氯化将继续进行。 继续进行氯化,直到基本上所有的五氯化碳已经转化为六氯化物。 如果六氯化物存在于混合物中,则可从较高沸点的氯化物中蒸馏出六氯化物,从而获得可通过还原转化为钨金属的高纯度产物。