Method for recovering titanium compound, process for preparing titanium halide, and process for preparing catalyst for polymer production
    3.
    发明授权
    Method for recovering titanium compound, process for preparing titanium halide, and process for preparing catalyst for polymer production 有权
    钛化合物的回收方法,卤化钛的制备方法以及制备用于聚合物生产的催化剂的方法

    公开(公告)号:US06790319B2

    公开(公告)日:2004-09-14

    申请号:US09994899

    申请日:2001-11-28

    IPC分类号: B01D334

    摘要: A method for recovering a titanium compound includes bringing a waste solution containing a titanium alkoxide into contact with a halogenating agent to convert at least a part of the titanium alkoxide to a titanium halide, and then distilling the solution containing the titanium halide to recover the titanium halide from the solution, or the method includes distilling a waste solution containing a titanium alkoxide and a titanium halide to recover at least a part of the titanium halide from the waste solution, bringing a residue in a distiller after the distillation into contact with a halogenating agent to convert at least a part of the titanium alkoxide to a titanium halide, and distilling the solution containing the titanium halide to recover the titanium halide from the solution. The method can recover an increased amount of a titanium compound from a waste solution containing a titanium alkoxide.

    摘要翻译: 回收钛化合物的方法包括使含有钛醇盐的废溶液与卤化剂接触以将至少一部分钛醇盐转化为卤化钛,然后蒸馏含有卤化钛的溶液以回收钛 或者该方法包括蒸馏含有钛醇盐和卤化钛的废溶液,以从废液中回收至少一部分卤化钛,蒸馏后的蒸馏器中的残余物与卤化物接触 将烷氧基钛的至少一部分转化为卤化钛,并蒸馏含有卤化钛的溶液以从溶液中回收卤化钛。 该方法可以从含有钛醇盐的废溶液中回收增加量的钛化合物。

    2-piperazinopyrimidine derivatives
    8.
    发明授权
    2-piperazinopyrimidine derivatives 失效
    2-哌嗪基嘧啶衍生物

    公开(公告)号:US4742165A

    公开(公告)日:1988-05-03

    申请号:US865566

    申请日:1986-05-02

    摘要: The present invention relates to novel 2-piperazinopyrimidine derivatives represented by the following general formula [I] which are useful as, for example, an active ingredient of herbicides ##STR1## wherein R.sup.1 is a hydrogen atom or an aralkyl group and Y is one of the groups represented by the following general formulas [II] to [VII] ##STR2## (wherein a and b are positions to be bound to positions 4 and 5 of the pyrimidine ring of the formula [I], respectively; l.sub.1 and l.sub.2 each are an integer of 2 to 4; l.sub.3 is 2 or 0; l.sub.4 is 0 or 1, provided that l.sub.4 is 0 when l.sub.3 is 2 and l.sub.4 is 1 when l.sub.3 is 0; l.sub.5 is 2 or 3; l.sub.6 is 1 or 2; l.sub.7 is 2 or 3; R.sup.2 is a hydroxyl group or a toluenesulfonyloxy group; and R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 each are a hydrogen atom or a lower alkyl group).

    摘要翻译: PCT No.PCT / JP85 / 00500 Sec。 371日期:1986年5月2日 102(e)日期1986年5月2日PCT提交1985年9月7日PCT公布。 出版物WO86 / 01798 1986年3月27日。本发明涉及由以下通式[I]表示的新的2-哌嗪基嘧啶衍生物,其可用作例如除草剂活性成分[I],其中R 1为氢 原子或芳烷基,Y是由以下通式[II]至[VII]表示的基团之一。图像[II] <图像> [III]图像[IV] (VII)其中a和b分别是结合式[I]嘧啶环的位置4和5的位置; l1和l2分别是2至4的整数 l3为2或0; l4为0或1,条件是当l3为2时l4为0,当l3为0时,l4为1; l5为2或3; 16为1或2; 17为2或3; R2 是羟基或甲苯磺酰氧基; R3,R4,R5,R6和R7各自为氢原子或低级烷基)。