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    Method of preparing hydrocarbon substituted dithiocarbamates of molybdenum
    4.
    发明授权
    Method of preparing hydrocarbon substituted dithiocarbamates of molybdenum 失效
    制备钼的烃取代二硫代氨基甲酸盐的方法

    公开(公告)号：US4681957A

    公开(公告)日：1987-07-21

    申请号：US771865

    申请日：1985-09-03

    Applicant: Gopal H. Singhal ,  Claude C. Culross

    Inventor： Gopal H. Singhal ,  Claude C. Culross

    IPC: C07F11/00

    CPC classification number: C07F11/005

    Abstract: An improved process for preparing dihydrocarbyl substituted dithiocarbamates of molybdenum wherein an alkali metal hydroxide is reacted with a mixture of a dihydrocarbyl substituted amine and carbon disulfide in an aqueous solution to produce an alkali metal salt of dithiocarbamate and the alkali metal salt then reacted with an alkali metal molybdate in the presence of acid to produce the dihydrocarbyl substituted dithiocarbamate of molybdenum. The process is completed in an inert atmosphere and within a relatively narrow range of temperatures so as to avoid the production of by-products which have heretofore reduced both the yield and purity of the final product. The preparation of the alkali metal salt of dithiocarbamate is completed at a temperature generally within the range from about -5 to about 30.degree. C. The acidification of the alkali metal salt of dithiocarbamate is completed, generally, at a temperature within the range from about -5 to about 5.degree. C.

    Abstract translation: 一种用于制备钼的二烃基取代的二硫代氨基甲酸盐的改进方法，其中碱金属氢氧化物与二烃基取代的胺和二硫化碳的混合物在水溶液中反应以产生二硫代氨基甲酸盐的碱金属盐，然后碱金属盐与碱 金属钼酸盐在酸的存在下产生二烃基取代的二硫代氨基甲酸钼。 该方法在惰性气氛中并在相对较窄的温度范围内完成，以避免产生迄今为止降低最终产物的产率和纯度的副产物。 二硫代氨基甲酸碱金属盐的制备通常在约-5至约30℃的温度范围内完成。二硫代氨基甲酸碱金属盐的酸化通常在约 -5至5℃

    Novel liquid membrane formulations and use thereof
    6.
    发明授权
    Novel liquid membrane formulations and use thereof 失效
    新型液膜制剂及其用途

    公开(公告)号：US3969265A

    公开(公告)日：1976-07-13

    申请号：US482592

    申请日：1976-06-24

    Applicant: Gopal H. Singhal ,  Martin L. Gorbaty ,  Richard M. Minday ,  Norman N. Li

    Inventor： Gopal H. Singhal ,  Martin L. Gorbaty ,  Richard M. Minday ,  Norman N. Li

    IPC: B01D61/40 ,  C08D7/00 ,  C08D7/10

    CPC classification number: B01D61/40

    Abstract: This invention relates to novel liquid membrane formulations which are water-in-oil emulsions wherein the oil phase comprises a sulfonated polymer having a backbone which is substantially nonaromatic, for example, less than 10 mole % aromatic, and uses thereof in high temperature liquid membrane processes. The emulsions are useful in liquid membrane water treating processes, especially in water treating processes which are desirably run at high temperatures. In the most preferred embodiment, these compositions are used in a liquid membrane sour water treating process wherein a waste water stream containing ammonium sulfide is contacted with a liquid membrane emulsion, i.e., the emulsions of the instant invention, at conditions whereby ammonia permeates through the external phase of the emulsion into an acidic internal phase wherein it is converted to a nonpermeable form, e.g., ammonium ion, while H.sub.2 S is continuously stripped out of the waste water solution by means of an inert gas, e.g., steam. Processes of this sort are most effectively carried out at temperatures greater than 80.degree.C. wherein the emulsions of the instant invention have excellent stability.

    Abstract translation: 本发明涉及新的液膜制剂，其是油包水乳液，其中油相包含具有基本上非芳香的主链的磺化聚合物，例如小于10摩尔％的芳香族，以及其在高温液体膜中的用途 过程。 乳液可用于液膜水处理方法，特别是在期望在高温下运行的水处理过程中。 在最优选的实施方案中，这些组合物用于液体膜酸性水处理方法中，其中含有硫化铵的废水流与本发明的液体膜乳液（即本发明的乳液）接触，其中氨渗透通过 乳状液的外相进入酸性内部相，其中将其转化为不渗透的形式，例如铵离子，同时通过惰性气体例如蒸汽将H 2 S连续地从废水溶液中排出。 这种方法在大于80℃的温度下最有效地进行，其中本发明的乳液具有优异的稳定性。

    Novel noble metal supported hydrotreating catalysts
    7.
    发明授权
    Novel noble metal supported hydrotreating catalysts 失效
    新型贵金属负载型加氢处理催化剂

    公开(公告)号：US5086027A

    公开(公告)日：1992-02-04

    申请号：US631303

    申请日：1990-12-18

    Applicant: Gopal H. Singhal ,  William E. Winter ,  Kenneth L. Riley ,  Kenneth L. Trachte

    Inventor： Gopal H. Singhal ,  William E. Winter ,  Kenneth L. Riley ,  Kenneth L. Trachte

    IPC: B01J23/89 ,  B01J37/08

    CPC classification number: B01J23/8993 ,  B01J37/086

    Abstract: A catalyst composition comprised of: about 0.005 to 5.0 wt. % noble metal, about 0.5 to 5 wt. % of at least one Group VIII metal, and about 3 to 18 wt. % of a Group VI metal, and a refractory support, wherein the noble metal is incorporated into the refractory support by use of a precursor represented by ML.sub.2 when the noble metal is Pt or Pd and ML.sub.3, when the noble metal is Rh or Ir, where M is the noble metal and L is a ligand selected from the dithiocarbamates, dithiophosphates, dithiophosphinates, xanthates, thioxanthates, and further wherein L has organo groups having a sufficient number of carbon atoms to render the noble metal complex soluble in oil.

    Abstract translation: 催化剂组合物包含：约0.005至5.0wt。 ％贵金属，约0.5〜5wt。 ％的至少一种第Ⅷ族金属，和约3至18wt。 ％的VI族金属和耐火载体，其中当贵金属为Pt或者Pd和ML3时，当贵金属为Rh或Ir时，使用由ML2表示的前体将贵金属掺入耐火载体中， 其中M是贵金属，L是选自二硫代氨基甲酸盐，二硫代磷酸盐，二硫代磷酸盐，黄原酸盐，硫代黄酸盐的配体，并且其中L具有足够数目的碳原子的有机基团以使贵金属络合物可溶于油。

    Method of preparation of dithiocarbamate complexes of molybdenum (VI)
    8.
    发明授权
    Method of preparation of dithiocarbamate complexes of molybdenum (VI) 失效
    钼（VI）二硫代氨基甲酸盐络合物的制备方法

    公开(公告)号：US4683316A

    公开(公告)日：1987-07-28

    申请号：US815604

    申请日：1986-01-02

    Applicant: Gopal H. Singhal

    Inventor： Gopal H. Singhal

    IPC: C07C67/00 ,  C07C325/00 ,  C07C333/16 ,  C07F11/00

    CPC classification number: C07F11/005

    Abstract: An improved process for preparing dihydrocarbyl substituted dithiocarbamates of molybdenum (VI) wherein an alkali metal ammonium or substituted ammonium salt of a dihydrocarbyl substituted dithiocarbamate is reacted with an alkali metal molybdate in the presence of an organic acid. The process is carried out in an inert atmosphere and within a relatively narrow range of temperatures. The dihydrocarbyl substituted dithiocarbamate of molybdenum (VI) may be recrystallized after preparation to increase its purity. The dihydrocarbyl substituted dithiocarbamate of molybdenum (VI) is produced at a temperature within the range from about -10.degree. C. to about +25.degree. C. at a pH during neutralization within the range from about 5.0 to about 8.0.

    Abstract translation: 一种制备钼（Ⅵ）的二烃基取代二硫代氨基甲酸酯的改进方法，其中将碱金属铵或二烃基取代的二硫代氨基甲酸取代的铵盐与有机酸存在下的碱金属钼酸盐反应。 该方法在惰性气氛中并在相对较窄的温度范围内进行。 钼（VI）的二烃基取代的二硫代氨基甲酸盐在制备后可以重结晶以提高其纯度。 钼（VI）的二烃基取代的二硫代氨基甲酸盐在约-10℃至约+25℃的温度范围内，在中和期间的pH为约5.0至约8.0。

    Recovery of catalyst from coal liquefaction residues
    9.
    发明授权
    Recovery of catalyst from coal liquefaction residues 失效
    从煤液化渣中回收催化剂

    公开(公告)号：US4434043A

    公开(公告)日：1984-02-28

    申请号：US383901

    申请日：1982-06-01

    Applicant: Gopal H. Singhal ,  Ramachandra A. Nadkarni

    Inventor： Gopal H. Singhal ,  Ramachandra A. Nadkarni

    IPC: C10G1/08 ,  C10G1/06 ,  C10G1/00

    CPC classification number: C10G1/086

    Abstract: Metal constituents are recovered from the heavy bottoms produced during the liquefaction of coal and similar carbonaceous solids in the presence of a catalyst containing metal constituents by reducing the carbonaceous content of the heavy bottoms, contacting the resultant heavy bottoms deficient in carbonaceous material with an aqueous solution of a mineral acid in the presence of an added alcohol and an added oxidizing agent to extract the metal constituent from the insoluble catalyst residues into the aqueous solution, and using the metal constituents extracted as constituents of the catalyst. Preferably, the metal constituent comprising the catalyst is molybdenum, the mineral acid is sulphuric acid, hydrochloric acid or phosphoric acid, the oxidizing agent is hydrogen peroxide and the alcohol is methanol. In a preferred embodiment of the invention, the carbonaceous content of the heavy bottoms is reduced by subjecting the heavy bottoms to a solvent extraction at elevated temperature and pressure with a hydrocarbon solvent in the presence of molecular hydrogen.

    Abstract translation: 在含有金属成分的催化剂的存在下，在煤和类似的含碳固体的液化期间产生的重的底部物质中的金属成分是通过减少重质底部物质的含碳量使其与含水溶液接触而产生的重质底部物质 的无机酸在加入的醇和加入的氧化剂的存在下将金属成分从不溶性催化剂残余物萃取到水溶液中，并使用作为催化剂成分萃取的金属成分。 优选地，包含催化剂的金属成分是钼，无机酸是硫酸，盐酸或磷酸，氧化剂是过氧化氢，醇是甲醇。 在本发明的一个优选实施方案中，通过在高分子氢气存在下，使烃溶剂在高温和高压下进行溶剂萃取来降低重塔底物的含碳量。

    Novel liquid membrane formulations and uses thereof
    10.
    发明授权
    Novel liquid membrane formulations and uses thereof 失效
    新型液膜制剂及其用途

    公开(公告)号：US4014785A

    公开(公告)日：1977-03-29

    申请号：US620966

    申请日：1975-10-09

    Applicant: Norman N. Li ,  Gopal H. Singhal ,  Richard M. Minday ,  Martin L. Gorbaty

    Inventor： Norman N. Li ,  Gopal H. Singhal ,  Richard M. Minday ,  Martin L. Gorbaty

    IPC: B01D61/40 ,  C08J3/09 ,  B01D13/00

    CPC classification number: B01D61/40 ,  C08J3/09

    Abstract: The instant invention relates to novel liquid membrane formulations, i.e., emulsions, which comprise an aqueous interior phase and a water-immiscible exterior phase; said water-immiscible exterior phase comprising an ethylene vinyl acetate copolymer and a solvent for this polymer. These compositions may additionally contain a water insoluble surfactant to stabilize the emulsions. In the most preferred embodiment, the aqueous interior phase comprises a strong acid, for example from about 1 to 10 percent by weight sulfuric acid. These emulsions are useful in liquid membrane processes for the separation of dissolved components from aqueous solution. Emulsions of the instant invention are characterized as showing very low swelling when contacted with aqueous solutions, especially at higher temperatures and thus are especially effective for use in the treatment of sour water feed streams by the liquid membrane technique.

    Abstract translation: 本发明涉及新型液膜制剂，即乳液，其包含水性内相和水不混溶的外部相; 所述与水不混溶的外部相包含乙烯乙酸乙烯酯共聚物和用于该聚合物的溶剂。 这些组合物可另外含有水不溶性表面活性剂以稳定乳液。 在最优选的实施方案中，水性内相包含强酸，例如约1至10重量％的硫酸。 这些乳液可用于从水溶液中分离溶解组分的液膜方法。 本发明的乳液的特征在于当与水溶液接触时显示非常低的溶胀度，特别是在较高温度下，因此特别有效地用于通过液膜技术处理酸性水进料流。

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