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公开(公告)号：US5152915A
公开(公告)日：1992-10-06
申请号：US753560
申请日：1991-09-03
IPC分类号： C01B11/02
CPC分类号： C01B11/021
摘要： A process for producing dichlorine monoxide which includes: feeding an aqueous solution of hypochlorous acid containing at least 20% by weight of HOCl to a reaction vessel; maintaining the temperature of the aqueous solution of hypochlorous acid in the range of from about -10.degree. to about +40.degree. C.; passing an inert gas through the aqueous solution of hypochlorous acid to produce a gaseous mixture comprising dichlorine monoxide, chlorine and inert gas; an contacting the gaseous mixture with dry ice to provide a solid phase of dry ice and dichlorine monoxide.
摘要翻译： 一种生产二氯一氧化物的方法，包括：将含有至少20重量％的HOCl的次氯酸水溶液进料到反应容器中; 将次氯酸水溶液的温度维持在约-10℃至约+ 40℃的范围内。 使惰性气体通过次氯酸水溶液，以产生包含二氯一氧化物，氯气和惰性气体的气态混合物; 使气体混合物与干冰接触以提供干冰和二氧化氯的固相。
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公开(公告)号：US4174267A
公开(公告)日：1979-11-13
申请号：US14176
申请日：1979-02-22
CPC分类号： C25B15/04
摘要： An improved method and apparatus for adjusting the space between an adjustable anode and a cathode in an electrolytic cell wherein current measurements and voltage measurements are obtained for conductors to the anode sets and compared with predetermined standards for the same conductors and anode sets. Measurement of deviation from the predetermined standards are used to determine the direction of anode adjustment. A digital computer operably connected to motor drive means adapted to raise or lower anode sets upon appropriate electric signals from the computer is a preferred embodiment of this invention.In a preferred embodiment, potential incipient short circuits are detected and avoided by the improvement which comprises:(a) obtaining the difference between two successive current signals for a selected conductor and doubling the difference to obtain a total current difference, .DELTA..sub.t,(b) obtaining the difference between two successive current signals for the conductor adjacent to the selected conductor and adding the difference for each adjacent conductor, to obtain an adjacent total current difference, .DELTA..sub.a,(c) subtracting .DELTA..sub.a from .DELTA..sub.t to obtain a remainder R for the selected conductor, and(d) raising the selected anode when R exceeds .DELTA..sub.t by more than about 0.5 percent.
摘要翻译： 一种用于调节电解池中的可调节阳极和阴极之间的空间的改进方法和装置，其中对于阳极组的导体获得电流测量和电压测量，并与相同导体和阳极组的预定标准进行比较。 使用与预定标准的偏差的测量来确定阳极调节的方向。 可操作地连接到电动机驱动装置的数字计算机是适于从计算机接收适当的电信号来升高或降低阳极组的本发明的一个优选实施例。 在优选实施例中，通过改进来检测和避免潜在的初始短路，其包括：（a）获得用于所选择的导体的两个连续电流信号之间的差异，并将该差加倍以获得总电流差ΔTA（t ）获得与所选导体相邻的导体的两个连续电流信号之间的差，并且相加每个相邻导体的差，以获得相邻的总电流差DELTA a，（c）从DELTA t中减去DELTA a以获得余数 R为所选择的导体，以及（d）当R超过DELTA t时提高所选择的阳极大于约0.5％。
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公开(公告)号：US5131989A
公开(公告)日：1992-07-21
申请号：US703437
申请日：1991-05-17
CPC分类号： C25B1/28 , C01B11/185
摘要： Ammonium perchlorate is produced a process which comprises:(a) oxidizing a solution of chloric acid substantially free of ionic impurities,(b) introducing gaseous ammonia or an ammonium hydroxide solution into the crystallizing zone to produce ammonium perchlorate crystals, wherein the aqueous solution of perchloric acid and/or the ammonium hydroxide solution is in droplet form.High purity ammonium perchlorate crystals can now be produced directly which are free of transition metals, sulfates and phosphates, as well as substantially free of other ionic impurities including alkali metals, chlorate and chloride.
摘要翻译： 产生高氯酸铵，其方法包括：（a）氧化基本上不含离子杂质的氯酸溶液，（b）将气态氨或氢氧化铵溶液引入结晶区以产生高氯酸铵晶体，其中将 高氯酸和/或氢氧化铵溶液是液滴形式。 现在可以直接生产高纯度的高氯酸铵晶体，它们不含过渡金属，硫酸盐和磷酸盐，以及基本上不含其它离子杂质，包括碱金属，氯酸盐和氯化物。
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公开(公告)号：US4155829A
公开(公告)日：1979-05-22
申请号：US919530
申请日：1978-06-27
IPC分类号： C25B1/36 , C25B1/40 , C25B9/02 , C25B15/00 , C25B15/02 , C25B15/04 , C25C7/06 , G05D3/12 , G05F1/10
CPC分类号： C25B15/04
摘要： An improved method and apparatus for adjusting the space between an adjustable anode and a cathode in an electrolytic cell wherein current measurements and voltage measurements are obtained for conductors to the anode sets and compared with predetermined standards for the same conductors and anode sets. Measurement of deviation from the predetermined standards are used to determine the direction of anode adjustment. A digital computer operably connected to motor drive means adapted to raise or lower anode sets upon appropriate electric signals from the computer is a preferred embodiment of this invention.
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5.发明授权
公开(公告)号：US3983025A
公开(公告)日：1976-09-28
申请号：US489648
申请日：1974-07-18
CPC分类号： C25B15/04
摘要： An improved method and apparatus for adjusting the space between an adjustable anode and a cathode in an electrolytic cell wherein current measurements and voltage measurements are obtained and compared with predetermined standards. Measurement of deviation from the predetermined standards are used to determine the direction of anode adjustment. A digital computer operably connected to motor drive means adapted to raise or lower anode sets upon appropriate electric signals from the computer is a preferred embodiment of this invention.
摘要翻译： 一种用于调节电解池中可调节阳极和阴极之间的空间的改进方法和装置，其中获得电流测量和电压测量并与预定标准进行比较。 使用与预定标准的偏差的测量来确定阳极调节的方向。 可操作地连接到电动机驱动装置的数字计算机是适于从计算机接收适当的电信号来升高或降低阳极组的本发明的一个优选实施例。
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公开(公告)号：US4532018A
公开(公告)日：1985-07-30
申请号：US529309
申请日：1983-09-06
CPC分类号： C25B15/02
摘要： Method and means for automatically controlling chlor-alkali cells are described. Control is exercised on the basis of a mass flow analysis, starting from a target caustic concentration for the catholyte output, to establish individual set points for optimum cell system operating conditions so as to achieve said target output value. Such control is accomplished by a central automatic control unit which is adapted to monitor the operation of the cell and its associated brine and caustic output subsystems and to institute appropriate corrective actions whenever a tolerance band around one or more of said set points is exceeded.The control unit is further adapted to provide daily and weekly operating summaries and to store said summaries for trends analyses to establish the scope and significance of any long-term degradative processes which might be occurring.
摘要翻译： 描述了自动控制氯碱电池的方法和手段。 基于从阴极电解液输出的目标苛性碱浓度开始的质量流量分析来执行控制，以建立用于最佳细胞系统操作条件的单独设定点，以实现所述目标输出值。 这种控制由中央自动控制单元来实现，该中央自动控制单元适于监测小区及其相关联的盐水和苛性输出子系统的操作，并且每当超出所述设定点的一个或多个周围的公差带时，进行适当的校正动作。 控制单元还适用于提供每日和每周的操作摘要，并存储用于趋势分析的所述摘要，以确定可能发生的任何长期降解过程的范围和意义。
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公开(公告)号：US4251336A
公开(公告)日：1981-02-17
申请号：US87200
申请日：1979-10-22
CPC分类号： C25B15/06
摘要： An improved method and apparatus for adjusting the space between an adjustable anode and a cathode in an electrolytic cell wherein current measurements and voltage measurements are obtained for conductors to the anode sets and compared with predetermined standards for the same conductors and anode sets. Measurement of deviation from the predetermined standards are used to determine the direction of anode adjustment. A digital computer operably connected to motor drive means adapted to raise or lower anode sets upon appropriate electric signals from the computer is a preferred embodiment of this invention.
摘要翻译： 一种用于调节电解池中的可调节阳极和阴极之间的空间的改进方法和装置，其中对于阳极组的导体获得电流测量和电压测量，并与相同导体和阳极组的预定标准进行比较。 使用与预定标准的偏差的测量来确定阳极调节的方向。 可操作地连接到电动机驱动装置的数字计算机是适于从计算机接收适当的电信号来升高或降低阳极组的本发明的一个优选实施例。
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公开(公告)号：US4082639A
公开(公告)日：1978-04-04
申请号：US725918
申请日：1976-09-22
CPC分类号： C25B15/06
摘要： A method and apparatus for obtaining signals from the anode buses of a mercury cell to provide automatic protection against short circuits, visual readouts, and computer information. A multiplexer is associated with each cell which scans the signals from the various bus bars. The scanned signals from each bus bar are sequential with one another and are converted to proportional voltage and anode bus current signals, which are transmitted to a console for decoding and processing to provide a visual readout and to a computer for processing and anode adjustment. In addition, each cell has an overcurrent and short circuit protection circuit based upon anode bus current. The instantaneous anode bus current for a given bus of a cell is compared with an average anode bus current for that cell and the anodes raised when the current exceeds the average bus current by a certain percentage.
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9.发明授权Method for automatic adjustment of anodes based upon current density and current 失效基于电流密度和电流自动调节阳极的方法
公开(公告)号：US4004989A
公开(公告)日：1977-01-25
申请号：US561014
申请日：1975-03-21
CPC分类号： C25B15/04
摘要： An improved method for automatic adjustment of anodes in an electrolytic cell is described which utilizes the measurement of the rate of change in current density for a given unit of distance when a minor fraction of the anodes are lowered toward the liquid cathode. When the change in rate of current density exceeds a predetermined limit, movement of the minor fraction of anodes is stopped, and another minor fraction of anodes is adjusted.After positioning of the anodes is completed, control of the space between the anode and cathode is effected wherein current measurements and voltage measurements are obtained and compared with predetermined standards. Measurements of deviation from the predetermined standards are used to determine the direction of anode adjustment. A digital computer operably connected to motor drive means adapted to raise or lower anode sets upon appropriate electric signals from the computer is a preferred embodiment of this invention.
摘要翻译： 描述了一种用于电解池中阳极自动调节的改进方法，其中当一小部分阳极朝向液体阴极降低时，利用对给定单位距离的电流密度变化率的测量。 当电流密度的变化率超过预定极限时，停止少量阳极的移动，并调节另一小部分阳极。
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