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181 条记录 (耗时 0.014 秒)

    Process for making phosphorus halides and oxyhalides
    41.
    发明授权
    Process for making phosphorus halides and oxyhalides 失效
    制备卤化磷和卤氧化物的方法

    公开(公告)号：US06685904B1

    公开(公告)日：2004-02-03

    申请号：US09061754

    申请日：1998-04-16

    申请人： Harry E. Buckholtz ,  Mohamed W. Hisham

    发明人： Harry E. Buckholtz ,  Mohamed W. Hisham

    IPC分类号： C01B2510

    CPC分类号： C01B25/10

    摘要： Disclosed is a process for producing phosphorous trichloride, phosphorous pentachloride, or phosphorous tribromide by reacting phosphine gas with chlorine gas or bromine gas, in a mixture with hydrogen gas. The phosphine is dried and the reaction is performed at a temperature up to about 250° C. The phosphorous trichloride or phosphorous tribromide product can be reacted with oxygen to form phosphorous oxychloride or phosphorous oxybromide, respectively.

    摘要翻译： 公开了一种通过使磷氢气与氯气或溴气在氢气的混合物中反应生成三氯化磷，五氯化磷或三溴化磷的方法。 将磷化氢干燥，反应在高达约250℃的温度下进行。三氯化磷或三溴化磷产物可与氧反应，分别形成三氯氧化磷或三溴氧化磷。

    Preparation of hexafluorophosphoric acid
    42.
    发明授权
    Preparation of hexafluorophosphoric acid 有权
    六氟磷酸的制备

    公开(公告)号：US06540969B1

    公开(公告)日：2003-04-01

    申请号：US09723841

    申请日：2000-11-28

    申请人： W. Novis Smith ,  Joel McCloskey

    发明人： W. Novis Smith ,  Joel McCloskey

    IPC分类号： C01B2510

    CPC分类号： C01B25/10

    摘要： The present invention provides a process for preparing hexafluorophosphoric acid complexed with about 1 to 3.3 molecules of water which are stable at temperatures below 20° C. and the compositions prepared thereby.

    摘要翻译： 本发明提供了一种制备六氟磷酸的方法，所述六氟磷酸与约1至3.3分子的水分配，在低于20℃的温度下是稳定的，由此制备组合物。

    Semi-continuous process for preparing phosphorus trichloride
    43.
    发明授权
    Semi-continuous process for preparing phosphorus trichloride 失效
    制备三氯化磷的半连续工艺

    公开(公告)号：US5252306A

    公开(公告)日：1993-10-12

    申请号：US844071

    申请日：1992-03-02

    申请人： James L. Champion ,  Chung Y. Shen ,  Chen-Hsyong Yang

    发明人： James L. Champion ,  Chung Y. Shen ,  Chen-Hsyong Yang

    IPC分类号： C01B25/10

    CPC分类号： C01B25/10

    摘要： There is disclosed an improved process for the semi-continuous production of phosphorus trichloride by the reaction of elemental phosphorus and chlorine in a liquid phosphorus trichloride layer. In accordance with the present invention periodic termination of the process by discontinuing phosphorus feed thereby creating a heel containing residual phosphorus is rendered more safe and less waste is produced by the improvement which comprises chlorinating the residual phosphorus at a substantially constant flow rate and continuing the chlorine feed rate until after observing at least one of either a step-wise decrease in the pressure within the reactor or a step-wise decrease in the flow rate of phosphorus trichloride removed from the reactor and then terminating the chlorine feed when said pressure and flow rate achieve a substantially steady state at a lower value.

    摘要翻译： 公开了通过液态三氯化磷层中元素磷和氯的反应半连续生产三氯化磷的改进方法。 根据本发明，通过停止磷进料从而产生含有残余磷的鞋跟，使得该方法的定期终止变得更加安全，并且通过改进产生较少的废物，其包括以基本上恒定的流速对残留的磷进行氯化并持续氯 进料速率，直到观察到反应器中的压力逐步降低中的至少一个或从反应器中除去的三氯化磷流速逐步降低，然后当所述压力和流速 以较低的值实现基本上稳定的状态。

    Method for stabilizing phosphorus trichloride
    44.
    发明授权
    Method for stabilizing phosphorus trichloride 失效
    稳定三氯化磷的方法

    公开(公告)号：US5147621A

    公开(公告)日：1992-09-15

    申请号：US665512

    申请日：1991-03-06

    申请人： Rudolf Schumann

    发明人： Rudolf Schumann

    IPC分类号： C01B25/10

    CPC分类号： C01B25/10

    摘要： The invention relates to a method for stabilizing phosphorus trichloride. In order to delay the formation of phosphorus oxychloride in phosphorus trichloride and to reduce it to a minimum value which no longer adversely affects further processing, one or more amines which have at least two aromatic hydrocarbon groups linked to one nitrogen atom, such as diphenylamine, phenothiazine, phenyl-4-methylphenylamine and triphenylamine, are added to the phosphorus trichloride. The amines can also be added in the form of their salts, including their quaternary ammonium compounds, or their reaction products with phosphorus halides. The amounts of amines, added fall within the range of 10.sup.-6 % to 10.sup.-1 %, based on the amount of phosphorus trichloride.

    摘要翻译： 本发明涉及一种稳定三氯化磷的方法。 为了延迟磷酰氯在三氯化磷中的形成，并将其降低至不再对进一步加工产生不利影响的最小值，一种或多种具有至少两个与一个氮原子连接的芳族烃基的胺如二苯胺， 吩噻嗪，苯基-4-甲基苯基胺和三苯胺，加入到三氯化磷中。 胺也可以以它们的盐的形式加入，包括它们的季铵化合物，或它们与卤化物的反应产物。 基于三氯化磷的量，添加的胺的量在10-6％至10-1％的范围内。

    Process for the preparation of phosphorus oxybromide
    45.
    发明授权
    Process for the preparation of phosphorus oxybromide 失效
    制备氧溴化磷的方法

    公开(公告)号：US3917803A

    公开(公告)日：1975-11-04

    申请号：US37153873

    申请日：1973-06-19

    申请人： HOECHST AG

    发明人： JOERCHEL EGON ,  KOHLHAAS RUDOLF

    IPC分类号： C01B25/10 ,  C01B20060101

    CPC分类号： C01B25/00 ,  C01B25/10

    摘要： The invention relates to a process for the preparation of phosphorus oxybromide from phosphorus tribromide and oxygen in the presence of nitrogen oxides in an organic solvent. The phosphorus oxybromide is separated by crystallization or vacuum distillation.

    摘要翻译： 本发明涉及在有机溶剂中在氮氧化物存在下由三溴化磷和氧气制备三溴氧磷的方法。 通过结晶或真空蒸馏分离氧溴化磷。

    Process for the regeneration of phosphorus oxychloride or oxybromide from reaction mixtures
    46.
    发明授权
    Process for the regeneration of phosphorus oxychloride or oxybromide from reaction mixtures 失效
    从反应混合物中再生磷酰氯或氧化乙锭的方法

    公开(公告)号：US3845194A

    公开(公告)日：1974-10-29

    申请号：US29256272

    申请日：1972-09-27

    申请人： CIBA GEIGY AG

    发明人： MURPHY J ,  SOMLO T ,  ROCHAT A

    IPC分类号： C01B25/10

    CPC分类号： C01B25/00 ,  C01B25/10

    摘要： 1. A PROCESS FOR THE DEHYDRATION OR THE HALOGEN-REPLACEMENT OF A HYDROXYL GROUP IN AN ORGANIC COMPOUND WITH A PHOSPHORUS OXYHALIDE, SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS OXYCHLORIDE AND PHOSPHORUS OXYBROMIDE, WITHOUT SUBSTANTIAL CONSUMPTION OF THE PHOSPHORUS OXYHALIDE, COMPRISING THE STEPS OF TREATING THE ORGANIC COMPOUND WITH A PHOSPHORUS OXYHALIDE TO PRODUCE A DEHYDRATED OR HALOGENATED ORGANIC REACTION PRODUCT AND A POLYMERIC PHOSPHORUS COMPOUND HAVING PO2CL PO2BR OR PO2OH AS THE REPEATING UNIT, SUBSEQUENTLY TREATING THE REACTION MIXTURE WITH A PHOSPHORUS PENTAHALIDE SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS PENTACHLORIDE AND PHOSPHORUS PENTABROMIDE OR WITH PHOSPHORUS TRICHLORIDE AND CHLORINE OR PHOSPHORUS TRIBROMIDE AND BROMINE TO REGENERATE THE PHOSPHORUS OXYHALIDE FROM THE POLYMERIC PHOSPHORUS COMPOUND, AND FINALLY SEPARATING THE RESULTING PHOSPHORUS OXYHALIDE FROM THE REACTION MIXTURE.

    Process for the manufacture of phosphorus pentafluoride
    47.
    发明授权
    Process for the manufacture of phosphorus pentafluoride 失效
    磷酸二氢钠制造工艺

    公开(公告)号：US3592594A

    公开(公告)日：1971-07-13

    申请号：US3592594D

    申请日：1968-01-05

    申请人： UNITED STATES STEEL CORP

    发明人： WIESBOECK ROBERT A

    IPC分类号： C01B25/10

    CPC分类号： C01B25/00 ,  C01B25/10

    摘要： PHOSPHORYL FLUORIDE IS REACTED WITH SULFUR TRIOXIDE TO FORM A PHOSPHORYL FLUORIDE-SULFUR TRIOXIDE ADDUCT AND THE ADDUCT CAN BE SOLVOLYZED BY HYDROGEN FLUORIDE TO FORM PHOSPHORUS PENTAFLUORIDE AND SULFURIC ACID. THE PHOSPHORYL FLUORIDE-SULFUR TRIOXIDE ADDUCT IS A NEW COMPOUND IN THE FORM OF A COLORLESS LIQUID HAVING A LOWER VAPOR PRESSURE THAN ITS INDIVIDUAL COMPONENTS BY A FACTOR OF ABOUT 10.