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    Recovery of hydrogen fluoride from aqueous solution containing ammonium fluoride and hydrogen fluoride
    6.
    发明公开
    Recovery of hydrogen fluoride from aqueous solution containing ammonium fluoride and hydrogen fluoride 失效
    Rückgewinnungvon Fluorwasserstoff aus Ammoniumfluorid undFlusssäureenthaltendenLösungen。

    公开(公告)号：EP0286450A1

    公开(公告)日：1988-10-12

    申请号：EP88303206.2

    申请日：1988-04-11

    申请人： IMC FERTILIZER, INC.

    发明人： Eyal, Aharon M. ,  Mizrahi, Joseph

    IPC分类号： C01B7/19 ,  C01C1/02

    CPC分类号： C01B7/194 ,  C01B7/195

    摘要： A method of recovering HF from an aqueous solution containing NH₄F and HF is provided. The solution is contacted with a water-immiscible, amine-containing extractant which extracts HF in preference to NH₄F. The HF:NH₄F molar ratio of the solution, the amine, the concentration of the amine in the extractant and the contact temperature are selected so as to form an HF-loaded organic liquid phase having an HF:amine molar ratio of at least about 1.2. The extractant is preferably selected from amines, amine-HF complexes, quaternary amine fluorides and mixtures thereof with inert organic diluents. After equilibration, the HF-loaded amine is separated from the solution and HF is stripped therefrom in an amount sufficient to lower the HF:amine molar ratio by at least about 0.2.

    摘要翻译： 提供了从含有NH 4 F和HF的水溶液中回收HF的方法。 将溶液与不溶于水的含胺萃取剂接触，其提取优于NH 4 F的HF。 选择溶液的HF:NH4F摩尔比，胺，萃取剂中胺的浓度和接触温度，以形成具有HF：胺摩尔比至少约1.2的HF负载的有机液相 。 萃取剂优选选自胺，胺-HF复合物，季胺氟化物及其与惰性有机稀释剂的混合物。 平衡后，将HF负载的胺从溶液中分离出来，并将HF从其中以足以将HF:胺摩尔比降低至少约0.2的量被汽提出来。

    Recovery of ammonia and hydrogen fluoride from ammonium fluoride solutions
    7.
    发明公开
    Recovery of ammonia and hydrogen fluoride from ammonium fluoride solutions 失效
    Rückgewinnungvon Ammoniak und Fluorwasserstoff ausAmmoniumfluoridlösungen。

    公开(公告)号：EP0286449A1

    公开(公告)日：1988-10-12

    申请号：EP88303205.4

    申请日：1988-04-11

    申请人： IMC FERTILIZER, INC.

    发明人： Eyal Aharon M.

    IPC分类号： C01B7/19 ,  C01C1/02

    CPC分类号： C01B7/195 ,  C01B7/194 ,  C01C1/026

    摘要： A method of recovering hydrogen fluoride and ammonia from an aqueous ammonium fluoride solution is provided. Ammonia and water are evaporated from a mixed liquor having an aqueous phase and an organic phase. The aqueous phase of the mixed liquor has a total fluorine concentration of at least about 15 wt% and an ammonium fluoride molar fraction of at least about 0.67. The mixed liquor is formed by combining the aqueous ammonium fluoride solution with (i) an aqueous solution of ammonium fluoride and ammonium bifluoride; (ii)a strong amine extractant which is immiscible in the aqueous solution of ammonium fluoride and ammonium bifluoride; and (iii) water. The evaporation of ammonia and water from the mixed liquor causes the amine to become loaded with hydrogen fluoride. The HF-loaded amine is recovered from the mixed liquor and hydrogen fluoride is stripped therefrom in an amount sufficient to lower the HF:amine molar ratio by at least about 0.2.

    摘要翻译： 提供了从氟化铵水溶液中回收氟化氢和氨的方法。 从具有水相和有机相的混合液中蒸发氨和水。 混合液的水相的总氟浓度至少为约15重量％，氟化铵摩尔分数为至少约0.67。 混合液通过将氟化铵水溶液与（i）氟化铵水溶液和二氟化铵组合而形成; （ii）在氟化铵和二氟化铵的水溶液中不混溶的强胺萃取剂; 和（iii）水。 从混合液中蒸发氨和水导致胺加载氟化氢。 从混合液中回收载有HF的胺，并将氟化氢以足以将HF:胺摩尔比降低至少约0.2的量从其中汽提。

    PREPARATION OF ANHYDROUS HYDROGEN HALIDES USING REDUCING AGENT
    8.
    发明公开
    PREPARATION OF ANHYDROUS HYDROGEN HALIDES USING REDUCING AGENT 审中-公开
    用还原剂制备无水氢卤酸

    公开(公告)号：EP2892846A1

    公开(公告)日：2015-07-15

    申请号：EP13834676.2

    申请日：2013-09-06

    申请人： Midwest Inorganics LLC

    发明人： TARANCON III, Gregorio

    IPC分类号： C01B7/19

    CPC分类号： C01B7/191 ,  C01B7/035 ,  C01B7/093 ,  C01B7/135 ,  C01B7/194 ,  C01B17/00 ,  C01B17/04 ,  C01B21/00 ,  C01B21/02 ,  C01F11/22 ,  C22B34/36 ,  C22B60/0204

    摘要： A method for completely reducing an inorganic halide to obtain a non-halogen inorganic substance and/or hydride thereof and preferably anhydrous hydrogen halide fluid using inorganic halide substances, such as sulfur hexafluoride, nitrogen trifluoride, tungsten hexafluoride, uranium hexafluoride and others by reduction with a reducing agent at a proper temperature. The reducing agents may be molecular hydrogen, inorganic hydrides and inorganic metallic elements; molecular hydrogen is preferable, but in certain instances the inorganic hydrides are used, as well as inorganic metallic elements such as calcium and magnesium.

    摘要翻译： 用无机卤化物物质如六氟化硫，三氟化氮，六氟化钨，六氟化铀和其它物质还原无机卤化物以获得无卤素无机物质和/或其氢化物，优选无水卤化氢液体的方法， 在适当温度下的还原剂。 还原剂可以是分子氢，无机氢化物和无机金属元素; 分子氢是优选的，但是在某些情况下使用无机氢化物以及无机金属元素如钙和镁。

    Method and apparatus for the production of nitrogen trifluoride
    9.
    发明公开
    Method and apparatus for the production of nitrogen trifluoride 审中-公开
    用于生产三氟化氮的方法和设备

    公开(公告)号：EP1338559A3

    公开(公告)日：2004-04-21

    申请号：EP03250729.5

    申请日：2003-02-05

    申请人： THE BOC GROUP, INC.

    发明人： Satchell, Donald Prentice ,  Mohan, Vasudev Ramanuja

    IPC分类号： C01B21/083 ,  B01J19/00 ,  B01J19/24

    CPC分类号： C01C1/162 ,  B01F3/04099 ,  B01F5/02 ,  B01F5/06 ,  B01F5/0659 ,  B01F2215/0468 ,  B01F2215/0472 ,  B01J10/002 ,  B01J19/244 ,  B01J19/246 ,  B01J2219/00006 ,  B01J2219/00094 ,  B01J2219/00108 ,  C01B7/194 ,  C01B21/0835 ,  C01C1/16

    摘要： In a method and apparatus for producing nitrogen trifluoride a working fluid is passed through a heat engine cycle and the mechanical energy generated by the working fluid is used to produce sufficient mixing intensity within a nitrogen trifluoride reactor. The method utilizes a working fluid vapor jet, such as a hydrogen fluoride vapor jet, to impart sufficient energy to the mixing zone of a reactor in order to disperse gaseous fluorine within a liquid ammonium acid fluoride melt. A gaseous reaction product stream is removed from the reactor, the reaction product stream comprising nitrogen trifluoride and a working fluid vapor. The working fluid is then separated from the nitrogen trifluoride and recycled for reuse in the process, thereby completing a heat engine cycle.

    摘要翻译： 在用于生产三氟化氮的方法和设备中，工作流体通过热机循环，并且由工作流体产生的机械能用于在三氟化氮反应器内产生足够的混合强度。 该方法利用工作流体蒸气射流（例如氟化氢蒸气射流）将足够的能量传递给反应器的混合区，以便将气态氟分散在液体酸式氟化铵熔体中。 从反应器中除去气态反应产物流，反应产物流包含三氟化氮和工作流体蒸气。 然后将工作流体从三氟化氮中分离出来并循环用于该过程中，由此完成热机循环。