中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

6 records (took 0.038 seconds)

    METHOD FOR THE OXIDATIVE DEHYDROGENATION OF N-BUTENES TO BUTADIENE
    1.
    发明申请
    METHOD FOR THE OXIDATIVE DEHYDROGENATION OF N-BUTENES TO BUTADIENE 审中-公开
    将丁香酚氧化脱水成丁二烯的方法

    公开(公告)号：WO2015004042A3

    公开(公告)日：2015-03-19

    申请号：PCT/EP2014064409

    申请日：2014-07-07

    Applicant: BASF SE

    Inventor： GRÜNE PHILIPP ,  RÜTTINGER WOLFGANG ,  SCHMITT CHRISTINE ,  WALSDORFF CHRISTIAN

    IPC: C07C5/48

    CPC classification number: C07C5/48 ,  C07C2521/18 ,  C07C2523/04 ,  C07C2523/26 ,  C07C2523/28 ,  C07C2523/31 ,  C07C2523/745 ,  C07C2523/75 ,  C07C2523/887 ,  Y02P20/584 ,  C07C11/167

    Abstract: The invention relates to a method for the oxidative dehydrogenation of n-butenes to form butadiene, said method comprising two or more production steps (i) and at least one regeneration step (ii). In said method: (i) in a production step a starting gas mixture containing n-butene is mixed with a gas containing oxygen and the mixed gas is brought into contact with a multi-metal-oxide catalyst containing at least molybdenum and another metal in a fixed-bed reactor, at a temperature of between 220 and 490 °C. A product gas mixture at least containing butadiene, oxygen and steam is thus obtained at the outlet of the fixed-bed reactor; (ii) in a regeneration step, to regenerate the multi-metal oxide catalyst, a regeneration gas mixture containing oxygen is passed over the catalyst fixed bed at a temperature between 200 and 450 °C and the carbon deposited on the catalyst is burnt off. A regeneration step (ii) is carried out between two production steps (i), the oxygen content of the product gas mixture at the outlet of the fixed-bed reactor is at least 5 vol. % and the duration of a production step (i) is less than 1,000 h.

    Abstract translation: 本发明涉及一种用于正丁烯的氧化脱氢为丁二烯的方法，包括在一个生产步骤中的两个或更多个生产步骤（i）和至少一个再生步骤（ii），其中（i），与含氧气体原料气体混合物的含正丁烯- 混合，将混合气体被带入在220的温度下，以490℃与含有至少钼一个布置在固定催化剂床的多金属氧化物催化剂和另外的金属在固定床反应器中接触，其中所述固定床反应器的输出，一个产物气体混合物至少含丁二烯， 是通过在200的温度下使含酸味Regeneriergasgemischs至450℃以上的在催化剂上沉积的碳，其中，剪贴板中的催化剂固定床和燃烧得到的氧气和水蒸汽和（ii）在多金属氧化物催化剂的再生步骤被再生 的两个单独的生产步骤（i）再生步骤（ii）中进行，其中氧含量至少为5％（体积）在固定床反应器的出口处的产物气体混合物，并且生产步骤（i）的持续时间小于1，000小时。

    METHOD FOR OXIDATIVE DEHYDROGENATION OF N-BUTENES TO BUTADIENE
    2.
    发明申请
    METHOD FOR OXIDATIVE DEHYDROGENATION OF N-BUTENES TO BUTADIENE 审中-公开
    步骤为正丁烯氧化脱氢丁二烯

    公开(公告)号：WO2014086768A8

    公开(公告)日：2015-10-22

    申请号：PCT/EP2013075361

    申请日：2013-12-03

    Applicant: BASF SE

    Inventor： GRÜNE PHILIPP ,  RÜTTINGER WOLFGANG ,  WALSDORFF CHRISTIAN

    IPC: B01J38/06 ,  B01J23/887 ,  B01J38/12

    CPC classification number: B01J38/06 ,  B01J23/8878 ,  B01J38/12 ,  B01J2523/00 ,  C07C5/48 ,  C07C2523/04 ,  C07C2523/18 ,  C07C2523/26 ,  C07C2523/745 ,  C07C2523/75 ,  C07C2523/887 ,  Y02P20/584 ,  C07C11/167 ,  B01J2523/13 ,  B01J2523/41 ,  B01J2523/54 ,  B01J2523/67 ,  B01J2523/68 ,  B01J2523/842 ,  B01J2523/845

    Abstract: The invention relates to a method for the oxidative dehydrogenation of n‑butenes to butadiene, comprising two or more production steps (i) and at least one regeneration step (ii), in which (i) in a production step an n‑butene-containing starting gas mixture is mixed with an oxygen-containing gas and is contacted in a fixed-bed reactor at a temperature of 220 to 490°C with a multimetal oxide catalyst arranged in a catalyst fixed bed, which multimetal oxide catalyst contains at least molybdenum, and one further metal, and, before the loss in conversion rate at constant temperature is > 25%, (ii), in a regeneration step the multimetal oxide catalyst is regenerated by passing an oxygen-containing regeneration gas mixture at a temperature of 200 to 450°C over the catalyst fixed bed and burning off the carbon deposited on the catalyst, wherein, between two production steps (i), one regeneration step (ii) is carried out, characterized in that, per regeneration step (ii), 2 to 50% by weight of the carbon deposited on the catalyst is burnt off.

    Abstract translation: 本发明涉及一种用于正丁烯的氧化脱氢为丁二烯的方法，包括在一个生产步骤中的两个或更多个生产步骤（i）和至少一个再生步骤（ii），其中（i），与含氧气体原料气体混合物的含正丁烯- 混合，在220〜490℃的温度下与含有至少钼和在一定温度下的另一金属接触，和前销售的损失是> 25％布置在固定催化剂床的多金属氧化物催化剂放置在固定床反应器中， （ⅱ）设置在所述多金属氧化物催化剂的再生步骤中通过在200℃至450℃在催化剂固定床使含氧Regeneriergasgemischs和沉积在催化剂上的碳，燃烧再生，其中，两个单独的生产步骤（i）再生步骤之间（ⅱ） 进行，D ABY，对于每个再生步骤（ii）2〜50重量烧过沉积在催化剂上的碳的％。

    PROCESS FOR PREPARING ACRYLIC ACID WITH HIGH SPACE-TIME YIELD
    6.
    发明专利
    PROCESS FOR PREPARING ACRYLIC ACID WITH HIGH SPACE-TIME YIELD 未知

    公开(公告)号：ZA201508898B

    公开(公告)日：2019-04-24

    申请号：ZA201508898

    申请日：2015-12-07

    Applicant: BASF SE

    Inventor： GÖBEL MICHAEL ,  WALSDORFF CHRISTIAN ,  HARTMANN MARCO ,  WÖRZ NICOLAI TONIO ,  BLASCHKE TIM ,  GRÜNE PHILIPP

    Abstract: In a process for preparing acrylic acid, a reaction gas which comprises a gaseous formaldehyde source and gaseous acetic acid and in which the partial pressure of the formaldehyde source, calculated as formaldehyde equivalents, is at least 85 mbar and in which the molar ratio of the acetic acid to the formaldehyde source, calculated as formaldehyde equivalents, is at least 1 is contacted with a solid condensation catalyst. The space-time yield can be enhanced significantly by increasing the partial pressure of the reactants. The space-time yield remains high even after prolonged process duration.

Patent Agency Ranking