15.
    发明专利
    未知

    公开(公告)号:DE10361517A1

    公开(公告)日:2005-07-28

    申请号:DE10361517

    申请日:2003-12-23

    Applicant: BASF AG

    Abstract: A process for preparing formaldehyde by gas-phase oxidation of methanol vapor by means of a gas stream comprising molecular oxygen in the presence of a fixed-bed catalyst comprising iron and molybdenum, wherein the process is carried out in a reactor ( 1 ) having heat-exchange plates ( 2 ) which are arranged in the longitudinal direction of the reactor ( 1 ) and have a spacing between them and through which a heat transfer medium flows, inlet and outlet facilities ( 3, 4 ) for the heat transfer medium to the heat-exchange plates ( 2 ) and also gaps ( 5 ) between heat-exchange plates ( 2 ) in which the fixed-bed catalyst is present and into which the methanol vapor and the gas stream comprising molecular oxygen are passed, is described.

    METHOD FOR PRODUCING FORMALDEHYDE
    16.
    发明专利

    公开(公告)号:CA2548367A1

    公开(公告)日:2005-07-14

    申请号:CA2548367

    申请日:2004-12-23

    Applicant: BASF AG

    Abstract: The invention relates to a method for the production of formaldehyde by gas phase oxidation of methanol vapour with a gas flow containing a molecular oxygen in the presence of solid bed catalyst containing iron and molybdenum. The invention is characterised in that the method is carried out in a reacto r (1) comprising thermal sheet metal plates (2) which are arranged at a distan ce from each other and in the longitudinal direction of the reactor (1), said thermal sheet metal plates being cross-flown by a heat carrier. The reactor also comprises devices for supplying and withdrawing (3, 4) the heat carrier to/from the thermal sheet steel plates (2), and gaps (5), which are disposed between the thermal sheet steel metal plates (2) and which are filled with t he solid bed catalyst and are introduced into the gas flow containing the methanol vapour and the molecular oxygen.

    СПОСОБ ПОЛУЧЕНИЯ БУТАДИЕНА И 1-БУТЕНА

    公开(公告)号:EA009785B1

    公开(公告)日:2008-04-28

    申请号:EA200601232

    申请日:2004-12-30

    Applicant: BASF AG

    Abstract: Изобретениекасаетсяспособаполучениябутадиенаизн-бутана, включающегоследующиестадии: A) подготовкаисходногогазовогопотокаа, содержащегон-бутан; B) подачасодержащегон-бутанзагрузочногогазовогопотокаа поменьшеймерев первуюзонудегидрированияи неокислительноекаталитическоедегидрированиен-бутана, причемполучаютпотокгазообразныхпродуктов b, содержащийн-бутан, 1-бутен, 2-бутен, бутадиен, водород, низкокипящиепримесии, вслучаенеобходимости, водянойпар; C) подачапотокагазообразныхпродуктов b неокислительногокаталитическогодегидрированияи содержащегокислородгазапоменьшеймеревовторуюзонудегидрированияи окислительноедегидрированиен-бутана, 1-бутенаи 2-бутена, причемполучаютпотокгазообразныхпродуктовс, содержащийн-бутан, 2-бутен, бутадиен, водород, низкокипящиепримесии водянойпар, содержаниебутадиенав которомвыше, чемв потокегазообразныхпродуктов b; D) отделениеводорода, низкокипящихпримесейи водяногопара, причемполучаютпотокС-газообразныхпродуктов d, которыйв основномсостоитизн-бутана, 2-бутенаи бутадиена; E) разделениепотокаС-газообразныхпродуктов d насостоящийв основномизн-бутанаи 2-бутанапоток e1 инасостоящийв основномизбутадиенапотокцелевогопродуктае2 посредствомэкстракционнойдистилляции; F) подачасостоящегов основномизн-бутанаи 2-бутенапотокае1 исодержащего 1-бутени 2-бутенциркуляционногопотока g взонудистилляциии разделениенабогатый 1-бутеномпотокцелевогопродукта f1, содержащий 2-бутени н-бутанрециркуляционныйпоток f2 исодержащий 2-бутенпоток f3 ирециркуляциярециркуляционногопотока f2 напервуюзонудегидрирования; G) подачасодержащего 2-бутенпотока f3 взону

    19.
    发明专利
    未知

    公开(公告)号:DE102006009838A1

    公开(公告)日:2007-09-06

    申请号:DE102006009838

    申请日:2006-03-01

    Applicant: BASF AG

    Abstract: A process for catalytically hydrogenating methylolalkanals of the general formula in which R1 and R2 are each independently a further methylol group or an alkyl group having from 1 to 22 carbon atoms or an aryl or aralkyl group having from 6 to 33 carbon atoms, in the liquid phase over a hydrogenation catalyst, which comprises setting a pH of from 7.0 to 9.0 in the hydrogenation effluent by adding at least one tertiary amine, an inorganic base or an inorganic or organic acid to the hydrogenation feed.

    20.
    发明专利
    未知

    公开(公告)号:BRPI0418222A

    公开(公告)日:2007-04-27

    申请号:BRPI0418222

    申请日:2004-12-30

    Applicant: BASF AG

    Abstract: The disclosure involves a process for preparing butadiene from n-butane. In the process, n-butane is first dehydrogenated autothermally under nonoxidative conditions to form a gas stream. The gas stream is then oxidatively dehydrogenated to form a second gas stream. From the second gas stream, a third gas stream containing n-butane, 2-butene and butadiene is obtained. From the third gas stream, a butadiene/butaine product stream is obtained and remaining n-butane and 2-butene is recycled into the first dehydrogenation zone.

Patent Agency Ranking