会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Purification of 2,3-dichloro-1-propanol
    • 2,3-二氯-1-丙醇的纯化
    • US5227541A
    • 1993-07-13
    • US982119
    • 1992-11-25
    • Toshio MoriHiromitu NojimaKoji KudoTatsuharu Arai
    • Toshio MoriHiromitu NojimaKoji KudoTatsuharu Arai
    • C07C29/80C07C31/36
    • C07C31/36C07C29/80
    • A process for purifying 2,3-dichloro-1-propanol is disclosed, which comprises introducing a chlorination reaction mixture obtained by chlorination of allyl alcohol in a hydrochloric acid aqueous solution in a reactor, to a degassing tower, where hydrogen chloride is released, returning the hydrogen chloride to the chlorination reactor, cooling the residual liquid to separate into an aqueous layer and an oily layer, and returning the aqueous layer to the chlorination reactor while recovering 2,3-dichloro-1-propanol from the oily layer, wherein said oily layer is introduced to a first distillation tower, where hydrogen chloride, part of the produced 2,3-dichloro-1-propanol, and other low-boiling components are recovered as a distillate, cooling the distillate to separate it into an aqueous layer and an oily layer, returning the aqueous layer of the distillate to the chlorination reactor, and recovering 2,3-dichloro-1-propanol from the oily layer of the distillate and a high-boiling fraction of the first distillation tower. Where 2,3-dichloro-1-propanol is for use as a starting material of epichlorohydrin, the process involves no wasteful consumption of calcium hydroxide.
    • 公开了一种纯化2,3-二氯-1-丙醇的方法,其包括将通过将烯丙醇在反应器中的盐酸水溶液中氯化得到的氯化反应混合物引入到其中释放氯化氢的脱气塔, 将氯化氢返回到氯化反应器中,冷却残留液体以分离成水层和油层,并将水层返回氯化反应器,同时从油层中回收2,3-二氯-1-丙醇,其中 将所述油层引入第一蒸馏塔,其中将氯化氢,部分产生的2,3-二氯-1-丙醇和其它低沸点组分作为馏出物回收,冷却馏出物以将其分离成水 层和油层,将馏出物的水层返回到氯化反应器中,并从馏出物的油层和高沸点馏分中回收2,3-二氯-1-丙醇 第一蒸馏塔的离子。 当2,3-二氯-1-丙醇用作表氯醇的起始原料时,该方法不会浪费氢氧化钙的消耗。
    • 6. 发明授权
    • Electric motor
    • 电动马达
    • US4259603A
    • 1981-03-31
    • US877286
    • 1978-02-13
    • Masami UchiyamaToru FuzimoriToshio Mori
    • Masami UchiyamaToru FuzimoriToshio Mori
    • H02K1/27H02K7/04H02K29/08H02K11/00
    • H02K7/04H02K1/2786H02K29/08
    • An electric motor comprising a stator block or assembly having stator windings and a control circuit substrate for supplying driving current thereto mounted integrally with the stator block, a shaft rotatably journalled in said stator block, a magnet casing in which are mounted driving magnets associated with the shaft, a rotor block or assembly provided with detector magnets held at an end of the shaft, and a detector winding block or assembly mounted within a motor housing to which a bracket is fixed. There is also disclosed a control means for controlling the driving current for the driving windings in response to the voltage induced in the detector winding block.
    • 一种电动机,包括具有定子绕组的定子块或组件和用于向驱动电流提供驱动电流的控制电路基板,该驱动电流与定子块一体地安装,可旋转地轴颈安装在所述定子块中的轴,其中安装有驱动磁体的磁体壳体 轴,设置有保持在轴的端部的检测器磁体的转子块或组件,以及安装在电机壳体内的检测器绕组块或组件,固定有托架。 还公开了一种控制装置,用于响应于检测器绕组块中感应的电压来控制驱动绕组的驱动电流。