Catalytic oxidation of sulfur compounds
    3.
    发明授权
    Catalytic oxidation of sulfur compounds 失效
    硫化合物的催化氧化

    公开(公告)号:US4937058A

    公开(公告)日:1990-06-26

    申请号:US311400

    申请日:1989-02-15

    CPC classification number: B01D53/8603 C01B17/508

    Abstract: Sulfur containing organics, e.g., carbon disulfide carbon oxysulfide, or a mercaptan, are oxidized to sulfur dioxide in gaseopus phase, whether alone or conjointly with hydrogen sulfide and/or elemental sulfur, per se, by passing a gaseous stream thereof, at elevated temperature, over a catalyst composition which comprises (i) a carrier substrate comprising titanium oxide, silica, zirconium oxide, silica-magnesia, silica-zirconia, silica-titanium oxide, zirconia-titanium oxide, or a zeolite, or admixture thereof, and (ii) a catalytically effective amount of at least one catalytically active element of Group Ib, IIb, IIIb, Vb, VIb, VIIb, VIII or Va of the Periodic Table, e.g., copper, silver, zinc, cadmium, yttrium, a lanthanide, chromium, molybdenum, tungsten, manganese, iron, cobalt, rhodium, iridium, nickel, palladium, platinum, tin and/or bismuth, but said catalyst composition being devoid of mixed oxide of spinel type.

    Abstract translation: 含硫有机物,例如二硫化碳,硫氧化碳,或硫醇,在高温下通过使其气态物流本身在氧气中被氧化成二氧化硫,不管是单独还是与硫化氢和/或元素硫共同作用 催化剂组合物,其包含(i)包含氧化钛,二氧化硅,氧化锆,二氧化硅 - 氧化镁,二氧化硅 - 氧化锆,二氧化硅 - 氧化钛,氧化锆 - 氧化钛或沸石的载体基质或其混合物,和 ii)催化有效量的元素周期表第Ib,IIb,IIIb,Vb,VIb,VIIb,VIII或Va族的至少一种催化活性元素,例如铜,银,锌,镉,钇,镧系元素, 铬,钼,钨,锰,铁,钴,铑,铱,镍,钯,铂,锡和/或铋,但所述催化剂组合物没有尖晶石型的混合氧化物。

    Catalytic desulfurization of industrial waste gases
    4.
    发明授权
    Catalytic desulfurization of industrial waste gases 失效
    工业废气的催化脱硫

    公开(公告)号:US4532119A

    公开(公告)日:1985-07-30

    申请号:US539132

    申请日:1983-11-17

    Applicant: Thierry Dupin

    Inventor: Thierry Dupin

    CPC classification number: C01B17/0456 B01D53/8615 B01J27/053

    Abstract: Industrial waste gases containing objectionable/polluting compounds of sulfur, e.g., H.sub.2 S, SO.sub.2 and such organosulfur derivatives as COS, CS.sub.2 and mercaptans, are catalytically desulfurized, e.g., by Claus process, employing an improved catalyst comprising titanium dioxide and calcium, barium, strontium or magnesium sulfate.

    Abstract translation: 含有不良/污染硫化合物的工业废气,如H 2 S,SO 2,以及诸如COS,CS2和硫醇的有机硫衍生物被催化脱硫,例如通过克劳斯法,使用包含二氧化钛和钙,钡,锶 或硫酸镁。

    Process for the preparation of alumina agglomerates
    8.
    发明授权
    Process for the preparation of alumina agglomerates 失效
    氧化铝附聚物的制备方法

    公开(公告)号:US5244648A

    公开(公告)日:1993-09-14

    申请号:US863140

    申请日:1992-04-02

    Abstract: Provided is a process for preparing alumina agglomerates which comprises:(i) treating agglomerates of active alumina with an aqueous medium comprising at least one acid making it possible to dissolve at least part of the alumina and at least one compound providing an anion capable of combining with aluminum ions in solution,(ii) subjecting the agglomerates to a hydrothermal treatment at a temperature in the range of from about 80.degree. C. to about 250.degree. C., and then(iii) thermally activating the agglomerates at a temperature in the range of about 500.degree. C. to about 1100.degree. C.The resulting alumina agglomerates possess exceptional mechanical strength, heat resistance and hydrothermal resistance and are useful as catalysts or catalyst supports.

    Abstract translation: 提供了一种制备氧化铝附聚物的方法,其包括:(i)用包含至少一种酸的水性介质处理活性氧化铝的附聚物,使得可以溶解至少一部分氧化铝和至少一种提供能够组合的阴离子的化合物 在溶液中具有铝离子,(ii)在约80℃至约250℃的温度范围内对附聚物进行水热处理,然后(iii)在该温度下在 范围为约500℃至约1100℃。所得的氧化铝附聚物具有优异的机械强度,耐热性和耐水热性,并且可用作催化剂或催化剂载体。

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