Electrolytic cell
    1.
    发明授权
    Electrolytic cell 失效
    电解池

    公开(公告)号:US4402812A

    公开(公告)日:1983-09-06

    申请号:US359502

    申请日:1982-03-18

    CPC分类号: C25C7/00 C25B9/00 C25B9/04

    摘要: The disclosure provides an electrolytic cell sealed in gas-tight and liquid-tight fashion. The cell is comprised of a box-shaped cell tank open at its top and provided with at least one intake duct, at least one overflow duct and at least one discharge duct. A cover is placed on the cell tank and two opposed flanges receiving electrode supporting frames are secured to the inside of the cell tank near the upper end thereof. A chemically resistant and electrically insulating coating is applied to the inside of the cover and cell tank and a plurality of semi-circular recessed grooves spaced apart from each other are formed in the upper rim portion of at least one of the side walls of the cell tank, the recessed grooves receiving semi-circular current beams projecting outwardly. A first elastic packing structurally conformed to the upper rim portion of the cell tank including the recessed grooves is placed thereon and a second elastic packing arranged at the underside of the cover co-operates with the upper side of the current beam and the first elastic packing whereby the electrolytic cell becomes gas tightly sealed. A main current rail is arranged to run outside the cell tank laterally with respect thereto and so as to be spaced therefrom, the rail providing large contact areas supporting the projecting end of the current beams. The electrode supporting frames and the current beams are electrically conducting inside the electrolytic ce

    摘要翻译: 本公开提供了以气密和液密方式密封的电解池。 电池由在其顶部开口设置有至少一个进气管道,至少一个溢流管道和至少一个排放管道的盒状电池槽组成。 将盖子放置在电池槽上,并且两个相对的接收电极支撑框架的凸缘在其上端附近固定到电池槽的内部。 在盖和电池槽的内部施加耐化学性和电绝缘的涂层,并且在电池的至少一个侧壁的上边缘部分中形成有彼此间隔开的多个半圆形凹槽 槽中的凹槽接收向外突出的半圆形电流束。 在其上放置结构上符合包括凹槽的电池槽的上边缘部分的第一弹性包装,并且布置在盖的下侧的第二弹性衬垫与电流梁的上侧配合,并且第一弹性包装 由此电解槽变得气密密封。 一个

    Metering device
    2.
    发明授权
    Metering device 失效
    计量装置

    公开(公告)号:US4447400A

    公开(公告)日:1984-05-08

    申请号:US362978

    申请日:1982-03-29

    摘要: A device for metering liquid yellow phosphorus into a rotating ball mill for the production of red phosphorus therein includes a stationary outer tubular structure surrounding an inner tubular structure rotatably mounted therein. A valve having a valve rod associated with it is installed within the inner tubular structure near its end close to the ball mill. A plug provided with a central bore receiving the valve rod is installed within the inner tubular structure near its end remote from the ball mill. A bellows surrounds a portion of the valve rod inside the inner tubular structure, the bellows being tightly connected to the plug and valve rod.

    摘要翻译: 用于将液体黄磷计量到用于产生红磷的旋转球磨机的装置包括围绕可旋转地安装在其中的内管状结构的固定外管状结构。 具有与其相关联的阀杆的阀安装在靠近球磨机的端部附近的内管状结构内。 设置有容纳阀杆的中心孔的塞子安装在靠近其远离球磨机的端部的内部管状结构内。 波纹管围绕内管状结构内的阀杆的一部分,波纹管紧紧地连接到塞子和阀杆。

    Process for making tertiary alkylphosphines
    3.
    发明授权
    Process for making tertiary alkylphosphines 失效
    制备叔烷基膦的方法

    公开(公告)号:US4757156A

    公开(公告)日:1988-07-12

    申请号:US85853

    申请日:1987-08-14

    IPC分类号: C07F9/50

    CPC分类号: C07F9/5059

    摘要: Tertiary alkylphosphines of the general formula R.sub.3 P, in which R stands for identical or different, linear, unsubstituted alkyl groups having 3 to 20 carbon atoms, with the proviso however that one of the alkyl groups may be a secondary butyl group, are made by reacting hydrogen phosphide PH.sub.3 with an appropriate alkene or alkenes in stoichiometric excess, if desired, at elevated temperature and under increased pressure in contact with a radical-yielding agent. 2,2'-azobis-(2-methylbutyronitrile) is used as the radical-yielding agent in the absence of whatever alien solvent.

    摘要翻译: 通式R3P的叔烷基膦,其中R表示相同或不同的直链,未取代的具有3至20个碳原子的烷基,条件是烷基中的一个可以是仲丁基,其通过使 磷氢化合物PH3与合适的烯烃或烯烃在化学计量过量下,如果需要,在升高的温度下和在与产生自由基的试剂接触的增加的压力下。 在没有任何外来溶剂的情况下,使用2,2'-偶氮双(2-甲基丁腈)作为自由基产生剂。

    Process for removing phosphorus in vapor form and phosphanes from gas
mixtures
    5.
    发明授权
    Process for removing phosphorus in vapor form and phosphanes from gas mixtures 失效
    从气体混合物中除去蒸汽形式的磷和磷烷的方法

    公开(公告)号:US4355010A

    公开(公告)日:1982-10-19

    申请号:US201761

    申请日:1980-10-29

    CPC分类号: B01D53/46 C01B25/027

    摘要: Phosphorus in vapor form and phosphanes are separated from gas mixtures which consist of carbon monoxide, with or without hydrogen, nitrogen and steam. Concerned are more particularly the off-gases of phosphorus-producing furnaces. To this end, the gas mixture is admixed with at least the stoichiometric amount of oxygen and/or of oxygen-containing gases necessary to achieve conversion of the total phosphorus contained in the gas mixture to oxidation level V. The resulting mixture is introduced into a reaction zone maintained at a temperature within the range 200.degree. to 700.degree. C. and allowed to remain therein over a period of 0.5 to 20 seconds. Resulting phosphorus-V compounds are finally separated from the gas mixture.

    摘要翻译: 蒸气形式的磷和磷烷与由一氧化碳,有或没有氢气,氮气和蒸汽组成的气体混合物分离。 更关心的是生产磷的炉的废气。 为此,将气体混合物与至少化学计量的氧和/或含氧气体混合,以使气体混合物中所含的总磷转化为氧化水平V.将所得混合物引入到 反应区保持在200℃至700℃的温度范围内,并允许其在0.5至20秒的时间内保留。 最终从气体混合物中分离所得的磷-V化合物。

    Process for making red phosphorus
    6.
    发明授权
    Process for making red phosphorus 失效
    制造红磷的工艺

    公开(公告)号:US4273752A

    公开(公告)日:1981-06-16

    申请号:US123106

    申请日:1980-02-20

    CPC分类号: C01B25/023

    摘要: The invention relates to a process for making red phosphorus by subjecting molten yellow phosphorus to a thermal conversion reaction in a closed reaction zone. To this end, a hollow shaft-provided and closed ball mill is preheated to a reaction temperature within the range 280.degree. to 590.degree. C. Yellow phosphorus is continuously introduced into the ball mill through the hollow shaft in quantities per unit time which permit the reaction temperature prevailing inside the ball mill to be maintained without supply of heat from the outside. More particularly, decreasing quantities of yellow phosphorus are introduced per unit time at increasing temperature and increasing quantities of yellow phosphorus are introduced per unit time at decreasing temperature within the limits specified. Red phosphorus is allowed to cool inside the ball mill, water is poured over it and the whole is subjected to wet-grinding. An aqueous suspension of red phosphorus is finally removed from the ball mill.

    摘要翻译: 本发明涉及通过使熔融黄磷在封闭反应区中进行热转化反应来制备红磷的方法。 为此,空心轴提供和封闭的球磨机被预热到280℃至590℃的反应温度。黄磷通过空心轴以每单位时间的量连续地引入球磨机,这允许 球磨机内部的反应温度保持不受外界的热量的限制。 更特别地,在增加的温度下每单位时间引入黄磷的减少量,并且在规定的限度内在降低的温度下每单位时间引入增加量的黄磷。 使红磷在球磨机内冷却,将水倒在其上,整体进行湿磨。 最终从球磨机中除去红磷水悬浮液。

    Continuous production of organic phosphines
    8.
    发明授权
    Continuous production of organic phosphines 失效
    连续生产有机膦

    公开(公告)号:US4163760A

    公开(公告)日:1979-08-07

    申请号:US872250

    申请日:1978-01-25

    IPC分类号: C07F9/50 C07F9/6568 C07F9/54

    CPC分类号: C07F9/5059 C07F9/65683

    摘要: Organic phosphines are produced by reacting an alkylene, cycloalkylene or aralkylene in the presence of a free radical-yielding catalyst. More specifically, a pressure reactor, which is provided in its interior with mixing elements, kept free from oxygen, and subdivided so as to comprise an upper cooling zone and a lower reaction zone, is continuously supplied from above with (a) a solution of the alkylene, cycloalkylene or aralkylene and the catalyst in an inert solvent, and (b) a stoichiometric excess of hydrogen phosphide, the said (a) and (b) reactants being supplied jointly with but separately from one another; the (a) and (b) reactants are mixed in the upper cooling zone of the reactor at about 0.degree. to 35.degree. C. and under a PH.sub.3 -pressure of about 80 to 300 bars; the resulting mixture, which travels downwardly in the reactor, is reacted in the lower reaction zone at about 90.degree. to 190.degree. C., the reactants being allowed to remain in the reactor for a period of time about 13 to 15 times longer than the half life period of the catalyst; the reaction mixture is removed through the bottom portion of the reactor and subjected to distillation so as to separate the organic phosphines.

    摘要翻译: 有机膦通过在产生自由基的催化剂存在下使亚烷基,亚环烷基或亚芳烷基反应来制备。 更具体地,在其内部设置有保持无氧的并且被分为包括上部冷却区和下部反应区的混合元件的压力反应器从上方连续地供给(a) 所述(a)和(b)反应物是由彼此共同供应的;(b)化学计量过量的磷酸氢盐,所述(a)和(b) (a)和(b)反应物在反应器的上部冷却区中在约0℃至35℃下混合,并在约80至300巴的PH3压力下混合; 在反应器中向下移动的所得混合物在下部反应区中在约90℃至190℃下反应,使反应物在反应器中保留约13至15倍的时间 催化剂的半衰期; 将反应混合物通过反应器的底部除去并进行蒸馏以分离有机膦。

    Production of 2-phenyl-ethylene phosphonic acid
    9.
    发明授权
    Production of 2-phenyl-ethylene phosphonic acid 失效
    2-苯基 - 乙烯膦酸的制备

    公开(公告)号:US3931294A

    公开(公告)日:1976-01-06

    申请号:US481813

    申请日:1974-06-21

    IPC分类号: C07F9/38 C07F9/40 C07F9/42

    CPC分类号: C07F9/3826 C07F9/42

    摘要: Production of 2-phenyl-ethylene phosphonic acid by reacting styrene with phosphorus pentachloride in a molar ratio of about 1 : 2 in liquid phase and hydrolyzing the resulting complex 2-phenyl-ethylene phosphonic acid tetrachloride with water. The reaction is more particularly started with the use as the liquid phase of the equimolar mixture of 2-phenyl-ethylene phosphonic acid dichloride and phosphorus oxychloride obtained as an intermediary product; styrene and phosphorus pentachloride are introduced thereinto with continuous agitation; resulting complex 2-phenyl-ethylene phosphonic acid tetrachloride is partially hydrolyzed by adding a predetermined quantity of water to an equimolar mixture of 2-phenyl-ethylene phosphonic acid dichloride and phosphorus oxychloride; a portion of the resulting clear solution is continuously used as the liquid phase and phosphorus oxychloride is continuously distilled off under reduced pressure from the balance portion of the solution; remaining 2-phenyl-ethylene phosphonic acid dichloride is hydrolyzed by continuous addition of overstoichiometric proportions of water to an aqueous solution of 2-phenyl-ethylene phosphonic acid; the aqueous solution is cooled and crystalline phosphonic acid is precipitated therefrom.

    摘要翻译: 通过苯乙烯与五氯化磷在液相中以约1:2的摩尔比反应制备2-苯基 - 乙烯膦酸,并用水将所得的络合物2-苯基 - 乙烯膦酸四氯化物水解。 反应更特别地以作为中间产物获得的2-苯基 - 乙烯膦酸二氯化物和磷酰氯的等摩尔混合物的液相的用途开始; 连续搅拌引入苯乙烯和五氯化磷; 通过向2-苯基 - 乙烯膦酰氯和磷酰氯的等摩尔混合物中加入预定量的水,使得2-苯基 - 乙烯膦酸四氯化物的复合物部分水解; 所得澄清溶液的一部分连续地用作液相,并且在减压下从溶液的平衡部分连续蒸馏除去三氯氧磷; 剩余的2-苯基 - 乙烯膦酸二氯化物通过将过度化学计量比例的水连续加入到2-苯基 - 乙烯膦酸的水溶液中来水解; 将水溶液冷却并从其中沉淀出结晶的膦酸。