Manufacture of ethylbenzene
    1.
    发明授权
    Manufacture of ethylbenzene 失效
    制造乙苯

    公开(公告)号:US3903185A

    公开(公告)日:1975-09-02

    申请号:US41625973

    申请日:1973-11-15

    Applicant: BASF AG

    CPC classification number: C07C5/367 C07C15/073

    Abstract: A method of manufacturing ethylbenzene in high yield by catalytic aromatization of the C8-cycloolefins obtained in the dimerization of unsaturated C4-hydrocarbons is described. Byproducts attributable to cracking, isomerization and decomposition of the raw material into its starting materials are virtually not detectable in the reaction product. The aromatization product can therefore be converted to styrene without prior distillation or purification.

    Abstract translation: 描述了通过在不饱和C4烃的二聚中获得的C8-环烯烃的催化芳构化而以高产率制备乙苯的方法。 归因于原料裂解,异构化和分解成其原料的副产物实际上在反应产物中不可检测。 因此,芳构化产物可以在没有事先蒸馏或纯化的情况下转化为苯乙烯。

    Catalysts useful in effecting the shift reaction

    公开(公告)号:GB1087987A

    公开(公告)日:1967-10-18

    申请号:GB552865

    申请日:1965-02-09

    Applicant: BASF AG

    Abstract: In a process for the catalytic reaction of carbon monoxide with steam to form carbon dioxide and hydrogen the catalyst used consists of (a) one or more oxides or sulphides of metals of Groups V-VII of the Periodic Table, alone or in combination with oxides or sulphides of cobalt and/or nickel, (b) an oxide or silicate carrier other than (a) or (c), and (c) an hydraulic cement as binding agent. Examples describe the reaction of crude conversion gas (containing 32 or 55% CO) with steam at 450 DEG C. and 100 atmospheres.ALSO:A shift reaction catalyst comprises (a) one or more oxides or sulphides of a Group V to VII metal alone or in combination with oxides or sulphides of Co and/or Ni (b) an oxide or silicate carrier and (c) a hydraulic-cement. An example describes the preparation of a Co-Mo-Al2O3 catalyst which has been bound with a commercially available cement, containing calcium aluminate.

    Improvements in the catalytic pressure refining of liquid hydrocarbon fractions

    公开(公告)号:GB901332A

    公开(公告)日:1962-07-18

    申请号:GB2624060

    申请日:1960-07-28

    Applicant: BASF AG

    Abstract: Petroleum hydrocarbons or liquid hydrocarbon fractions obtained from solid or liquid fuels by coking, low temperature carbonization, or gasification, are freed from sulphur-, oxygen- or nitrogencontaining impurities by a catalytic two-stage treatment in which a gas containing less than 60% by volume of hydrogen, e.g. coke oven gas, municipal gas, water gas, or refinery waste gas, is used in the first stage, and a gas containing at least 90% by volume, preferably 95% by volume or more, of hydrogen is used in the second stage. The catalyst is suitably one or more oxides, sulphides, phosphates or halides of metals of Group V-VIII of the Periodic Table, preferably of Group V and VI, as well as iron, cobalt and nickel; these may be applied to such carriers as alumina, silicic acid, silicates, titanium, zirconium, cerium or zinc oxides, or magnesia, which may have been pretreated with steam, hydrogen halides, or boron compounds. If required, the catalysts may be different for the two stages. As shown, the raw material 1 is compressed to the reaction pressure, which is generally below 100 atmospheres and most preferably 10-50 atmospheres, wholly or partly vaporized alone or together with hydrogencontaining gas 2, heated to the reaction temperature, which is generally 300-425 DEG C., and passed over the catalyst of the first stage 3. The product passes to stripper 4 and the hydrogen-containing gas is recirculated by line 2. Before passing to the catalyst of the second stage 7, the product is decompressed in vessel 5, and then again compressed, heated, and mixed with hydrogen 6. The refined product is stripped in 8 and the gas recirculated to 6. In both stages, hydrogen is added at 9 and the pressure is controlled by decompression at 10 by means of pump 11. The gas in the first stage is suitably used in amounts of 500-200 c. metres/metric ton raw material and in the second stage in amounts of 300-1500 c. metres/metric ton. Especially suitable starting materials are crude benzenes, highly unsaturated light oils obtained by cracking oils and tars above 500 DEG C. and the aromatic-rich light oils obtained in the coking and gasification of solid fuels.

    Process for the catalytic conversion of carbon monoxide with steam to form hydrogen and carbon dioxide

    公开(公告)号:GB940960A

    公开(公告)日:1963-11-06

    申请号:GB4039660

    申请日:1960-11-24

    Applicant: BASF AG

    Abstract: Hydrogen and carbon dioxide are produced from steam and carbon monoxide using as catalyst a mixture of a sulphide of cobalt and/or nickel together with one or more sulphides of the transition groups VA, VIA, and VIIA of the Periodic System of Leverenz, used either alone or on a carrier. The catalyst may also contain iron or copper sulphide. The reaction may be at superatmospheric pressure, e.g. 7 to 35 atmospheres and in at least two stages, the mean temperature in each successive stage being 50 DEG to 100 DEG C. lower than that in the preceding stage. The gas to be converted may contain hydrogen sulphide and organic sulphur compounds. The catalyst is re-activated by oxidation and re-sulphurization in situ. Catalyst carriers used may be alumina, synthetic and natural silicates, oxides of magnesium, calcium, zirconium, chromium, titanium.ALSO:In the conversion of steam and carbon monoxide to hydrogen and carbon dioxide a catalyst is used comprising a sulphide of cobalt and/or nickel together with a sulphide of a metal of Group VA, VIA, and VIIA of the Leverenz Periodic system. Examples use 9,8% by weight of molybdenum sulphide, and 4,7% by weight of cobalt sulphide using active alumina as carrier, the catalyst used as cylindrical pellets 3 mm. high and 3 mm. diameter.

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