Desublimer for the recovery of sublimed products, particularly phtalic anhydride, from reaction gases
    14.
    发明授权
    Desublimer for the recovery of sublimed products, particularly phtalic anhydride, from reaction gases 失效
    Desublimer从反应气体中回收升华产物,特别是邻苯二甲酸酐

    公开(公告)号:US3905420A

    公开(公告)日:1975-09-16

    申请号:US44902974

    申请日:1974-03-07

    Applicant: BASF AG

    CPC classification number: B01D57/00 B01D7/02 F28F9/0138 Y10S165/067

    Abstract: Desublimer for the recovery of sublimed products from reaction gases, consisting of a closed housing for the passage of the reaction gas and a plurality of horizontally mounted rows of finned tubes for the passage of the heating or cooling medium, in which a perforated slider is mounted on each finned tube to allow adjacent finned tubes to bear loosely against each other, the stack of superposed sliders associated with each finned tube being loosely supported on a girder securely attached to the housing.

    Abstract translation: Desublimer用于从反应气体中回收升华产物,包括用于反应气体通过的封闭壳体和多个水平安装的翅片管排,用于通过加热或冷却介质,其中安装有多孔滑块 在每个翅片管上允许相邻的翅片管彼此松散地相对承载,与每个翅片管相关联的叠置的滑块被松散地支撑在牢固地附接到壳体的梁上。

    Production of organometallic compounds of sodium or potassium with alkylaromatic hydrocarbons
    16.
    发明授权
    Production of organometallic compounds of sodium or potassium with alkylaromatic hydrocarbons 失效
    用烷基芳烃生产钠或钾的有机金属化合物

    公开(公告)号:US3903184A

    公开(公告)日:1975-09-02

    申请号:US43158174

    申请日:1974-01-07

    Applicant: BASF AG

    CPC classification number: C07F1/00

    Abstract: Production of organometallic compounds of sodium and potassium with alkylaromatic hydrocarbons (X) by reaction of the metal with a monochloride of a hydrocarbon (Y) and reaction of the organometallic compound formed with the alkylaromatic hydrocarbon (X). A fine dispersion of the metal in the alkylaromatic hydrocarbon (X) is first prepared by stirring a mixture of molten metal and hydrocarbon (X) in the presence of a dispersing agent; then the monochloride of the hydrocarbon (Y) is slowly added. The sodium or potassium compounds may be used for organometallic reactions or as monofunctional polymerization catalysts.

    Abstract translation: 通过金属与烃的一氯化物(Y)的反应和与烷基芳烃(X)形成的有机金属化合物的反应,生成具有烷基芳烃(X)的钠和钾的有机金属化合物。 首先通过在分散剂的存在下搅拌熔融金属和烃(X)的混合物来制备金属在烷基芳族烃(X)中的细分散体; 然后缓慢加入烃(Y)的一氯化物。 钠或钾化合物可用于有机金属反应或用作单官能聚合催化剂。

    Production of 3-sulfopropionic anhydride
    17.
    发明授权
    Production of 3-sulfopropionic anhydride 失效
    生产3-磺基丙酸酐

    公开(公告)号:US3902980A

    公开(公告)日:1975-09-02

    申请号:US45757874

    申请日:1974-04-02

    Applicant: BASF AG

    CPC classification number: B01J19/122 B29C2793/00 C07D327/04

    Abstract: Production of 3-sulfopropionic anhydride by reaction of propionic acid with chlorine and sulfur dioxide in specific proportions with irradiation. The 3-sulfopropionic anhydride prepared by the process of the invention is a valuable starting material for the production of dyes, pesticides and fibers.

    Abstract translation: 通过丙酸与氯和二氧化硫的反应以特定比例的照射生产3-磺基丙酸酐。 通过本发明方法制备的3-磺基丙酸酐是用于生产染料,农药和纤维的有价值的起始原料。

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