利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

15 条记录 (耗时 0.01 秒)

    Recovery of bromine from organic bromides
    2.
    发明授权
    Recovery of bromine from organic bromides 失效
    从有机溴中恢复溴

    公开(公告)号：US3705010A

    公开(公告)日：1972-12-05

    申请号：US3705010D

    申请日：1970-12-07

    申请人： DOW CHEMICAL CO

    发明人： DAVIS RALPH A ,  TIGNER RONALD G

    IPC分类号： C01B7/09 ,  C01B7/10 ,  C01B7/12

    CPC分类号： C01B7/096

    摘要： DISCLOSED IN A PROCESS FOR THE RECOVERY OF BROMINE VALUES AS BR2 FROM ORGANIC BROMIDES. THE PROCESS INVOLVES REACTING THE ORGANIC BROMIDE WITH OXYGEN AT AN ELEVATED TEMPERATURE IN THE PRESENCE OF A CATALYST. THE CATALYST IS SELECTED FROM ONE OR MORE OF THE OXIDES OF CHROMIUM, VANADIUM, TUNGSTEN, MOLYBDENUM, CERIUM, URANIUM OR ALUMINUM.

    Recovery of hydrogen bromide from aromatic bromides
    3.
    发明授权
    Recovery of hydrogen bromide from aromatic bromides 失效
    从芳香族溴化物中回收溴化氢

    公开(公告)号：US3919398A

    公开(公告)日：1975-11-11

    申请号：US50193574

    申请日：1974-08-29

    申请人： DOW CHEMICAL CO

    发明人： DAVIS RALPH A

    IPC分类号： C01B7/09 ,  C01B7/12

    CPC分类号： C01B7/093

    摘要： A method of recovering bromine as hydrogen bromide from aromatic bromides. The method involves reacting the aromatic bromide with hydrogen at a temperature within the range of from about 200* to about 600* C in the presence of a palladium activated catalyst.

    摘要翻译： 从芳香族溴化物中回收溴作为溴化氢的方法。 该方法包括在钯活化催化剂存在下，在约200至约600℃的温度范围内使芳香族溴与氢反应。

    Hydrogen iodide
    5.
    发明授权
    Hydrogen iodide 失效
    氢碘化物

    公开(公告)号：US3761579A

    公开(公告)日：1973-09-25

    申请号：US3761579D

    申请日：1971-09-01

    申请人： MONSANTO CO

    发明人： CURTIS B ,  FANNIN L ,  PAULIK F ,  PRICE J

    IPC分类号： C01B7/13 ,  C01B17/42 ,  C07C17/16 ,  C01B7/18 ,  C01B7/08 ,  C01B7/12

    CPC分类号： C01B17/42 ,  C01B7/135 ,  C07C17/16 ,  C07C19/07

    摘要： Aqueous hydrogen iodide is prepared by the reaction of iodine, water and carbon monoxide in a reaction medium containing a strong acid at temperatures in the range from about 75* to about 200* C and pressures from about 25 to about 500 psig employing a rhodium- or iridium-containing catalyst.

    摘要翻译： 碘化氢水溶液通过碘，水和一氧化碳在包含强酸的反应介质中在约75至约200℃的温度和约25至约500psig的压力下反应来制备，使用铑 - 或含铱催化剂。

    Flame reaction process for producing hydrogen bromide
    8.
    发明授权
    Flame reaction process for producing hydrogen bromide 失效
    用于生产溴化氢的火焰反应过程

    公开(公告)号：US3988427A

    公开(公告)日：1976-10-26

    申请号：US556493

    申请日：1975-03-07

    申请人： Joseph A. Bossler, III ,  Robert J. Fanning

    发明人： Joseph A. Bossler, III ,  Robert J. Fanning

    IPC分类号： C01B7/09 ,  F23D99/00 ,  C01B7/12

    CPC分类号： F23D99/00 ,  C01B7/093

    摘要： A flame reactor burner is provided for reacting hydrogen and bromine to produce hydrogen bromide. Flame stability is enhanced by producing a helical flow of well mixed reactants within the burner, whereby the reactants in intimate contact with each other are propelled in an outward spiral path as they exit from the burner producing a hemispherical flame of high stability.

    摘要翻译： 提供了用于使氢和溴反应产生溴化氢的火焰反应器燃烧器。 通过在燃烧器内产生充分混合的反应物的螺旋流来增强火焰稳定性，由此当彼此紧密接触的反应物在从燃烧器离开时向外螺旋路径中被推进，产生高稳定性的半球形火焰。

    Method of recovering heavy metal [-bromine] bromides and hydrobromic acid catalysts for liquid-phase oxidation [catalyst]
    9.
    发明授权
    Method of recovering heavy metal [-bromine] bromides and hydrobromic acid catalysts for liquid-phase oxidation [catalyst] 失效
    回收重金属{8-溴{9 {0溴和氢溴酸催化剂用于液相氧化{8催化剂{9

    公开(公告)号：US3959449A

    公开(公告)日：1976-05-25

    申请号：US456717

    申请日：1974-04-01

    申请人： Motoo Shigeyasu ,  Takeo Ozaki ,  Nobuo Kusano

    发明人： Motoo Shigeyasu ,  Takeo Ozaki ,  Nobuo Kusano

    IPC分类号： B01J37/22 ,  B01J37/30 ,  B01J39/04 ,  C07C51/487 ,  C01B7/12 ,  B01D11/02 ,  C01G45/06 ,  C01G51/08

    CPC分类号： B01J39/043 ,  B01J37/22 ,  B01J37/30 ,  C07C51/487

    摘要： A method of recovering in highly pure states heavy metals such as cobalt, manganese, etc., and bromine without the contamination of organic impurities and heavy metal impurities from the residue of the reaction mother liquor, which is obtained by removing a solvent from the reaction mother liquor remained after recovering terephthalic acid from the oxidation reaction product obtained in the method of producing terephthalic acid by subjecting an alkylbenzene such as p-xylene to a liquid phase oxidation with oxygen or oxygen-containing gas in the presence of a catalyst containing the heavy metals and bromine using a lower aliphatic monocarboxylic acid as the solvent, said method comprising: stirring the residue of the reaction mother liquor with water as solvent in the presence of molecular oxygen and a sulfur compound, removing solid impurities from the extracted mixtures thus treated by solid-liquid separation to provide an aqueous catalyst extract solution, passing the aqueous solution through a column packed with a strongly acidic cation-exchange resin to adsorb thereon the heavy metal catalyst, distilling the solution thus passed through the ion-exchange resin to recover bromine contained in the aqueous extract solution as hydrobromic acid, and, on the other hand, passing hydrobromic acid through the column of the ion exchange resin having adsorbed thereon the heavy metal catalyst to desorb the heavy metal catalyst, whereby the heavy metal catalyst is recovered as the bromide of it.

    摘要翻译： 在高纯度状态下回收重金属如钴，锰等的方法和溴，而不会从反应母液的残留物中除去有机杂质和重金属杂质，这是通过从反应中除去溶剂而获得的 在从对苯二甲酸生产方法中得到的氧化反应产物中回收对苯二甲酸后，母液在含有重氢的催化剂存在下，用对二甲苯等烷基苯进行液相氧化 使用低级脂族一元羧酸作为溶剂的金属和溴，所述方法包括：在分子氧和硫化合物的存在下，用水作为溶剂搅拌反应母液的残余物，从如此处理的提取的混合物中除去固体杂质， 固液分离以提供含水催化剂提取液，通过水溶液 n通过填充有强酸性阳离子交换树脂的柱以吸附重金属催化剂，蒸馏由此通过离子交换树脂的溶液以回收含水提取物溶液中的溴作为氢溴酸，另一方面 将氢溴酸通过其上吸附有重金属催化剂的离子交换树脂的柱，使重金属催化剂解吸，由此重金属催化剂作为其溴化物被回收。

    Process for recovering hbr and bromine from 2,3,3-tribromo-2-alkylalkanes
    10.
    发明授权
    Process for recovering hbr and bromine from 2,3,3-tribromo-2-alkylalkanes 失效
    从2,3,3-三溴-2-烷基醇中回收HBR和溴的方法

    公开(公告)号：US3839547A

    公开(公告)日：1974-10-01

    申请号：US31136972

    申请日：1972-12-01

    申请人： GULF RESEARCH DEVELOPMENT CO

    发明人： MC NULTY J ,  WALSH W

    IPC分类号： C01B7/09 ,  C01B7/10 ,  C01B7/12

    CPC分类号： C01B7/093

    摘要： 1. A PROCESS FOR RECOVERING BROMINE FROM A 2,3,3-TRIBROMO-2-ALKYLALKANE WHICH COMPRISES HEATING A CHARGE CONSISTING ESSENTIALLY OF SAID 2,3,3-TRIBROMO-2-ALKYLALKANE AND ATER, WHEREIN THE MOLAR RATIO OF WATER TO SAID 2,3,3TRIBROMO-2-ALKYLALKANE IS IN THE RANGE OF ABOUT 10:1 TO ABOUT 50:1 AT A TEMPERATURE OF ABOUT 80* TO ABOUT 200* C. AND A PRESSURE OF ABOUT 50 TO ABOUT 200 POUNDS PER SQURE INCH GUAGE, SUFFICIENT TO MAINTAIN THE WATER IN LIQUID PHASE, FOR ABOUT 15 MINUTES TO ABOUT FIVE HOURS TO OBTAIN A REACTION MIXTURE HAVING AN UPPER ORGANIC PHASE AND A LOWER AQUEOUS PHASE, SAID UPPER ORGANIC PHASE BEING SUBSTANTIALLY DEPLEDTED OF BROMINE AND HAVING THE APPEARANCE OF A POLYMER AND SAID LOWER AQUEOUS PHASE CONTAINING HBR DISSOLVED THEREIN, AND THEREAFTER SEPARATING SAID PHASES FROM EACH OTHER.