中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

68 records (took 0.023 seconds)

    METHOD FOR PRODUCING FORMIC ACID BY REACTING CARBON DIOXIDE WITH HYDROGEN
    64.
    发明专利
    METHOD FOR PRODUCING FORMIC ACID BY REACTING CARBON DIOXIDE WITH HYDROGEN 未知

    公开(公告)号：IN3122DEN2014A

    公开(公告)日：2015-05-22

    申请号：IN3122DEN2014

    申请日：2014-04-21

    Applicant: BASF SE

    Inventor： SCHAUB THOMAS ,  BEY OLIVER ,  MEIER ANTON ,  FRIES DONATA MARIA ,  HUGO RANDOLF

    IPC: C07C51/00 ,  C07C51/02 ,  C07C51/42

    Abstract: The invention relates to a method for producing formic acid comprising the following steps: (a) reacting in a homogeneously catalyzed manner a reaction mixture (Rg) containing carbon dioxide hydrogen at least one polar solvent and at least one tertiary amine in the presence of at least one coordination catalyst in a hydrogenation reactor in order to obtain a two phase hydrogenation mixture (H) containing an upper phase (O1) which contains the at least one coordination catalyst and the at least one tertiary amine (A1) and a lower phase (U1) which contains the at least one polar solvent residues of the at least one coordination catalyst and at least one formic acid/amine adduct; (b) processing the hydrogenation mixture (H) obtained in step (a) according to one of the following steps: (b1) phase separating the hydrogenation mixture (H) obtained in step (a) in a first phase separating device into the upper phase (O1) and the lower phase (U1) or (b2) extracting the at least one coordination catalyst from the hydrogenation mixture (H) obtained in step (a) in an extraction unit with an extracting agent containing the at least one tertiary amine (A1) in order to obtain a raffinate (R1) containing the at least one formic acid/amine adduct (A2) and the at least one polar solvent and an extract (E1) containing the at least one tertiary amine (A1) and the at least one coordination catalyst or (b3) phase separating the hydrogenation mixture (H) obtained in step (a) in a first phase separating device into the upper phase (O1) and the lower phase (U1) and extracting the residues of the at least one coordination catalyst from the lower phase (U1) in an extraction unit by means of an extracting agent containing the at least one tertiary amine (A1) in order to obtain a raffinate (R2) containing the at least one formic acid/amine adduct (A2) and the at least one polar solvent and an extract (E2) containing the at least one tertiary amine (A1) and the residues of the at least one coordination catalyst; (c) separating the at least one polar solvent from the lower phase (U1) from the raffinate (R1) or from the raffinate (R2) in a first distillation device in order to obtain a distillate (D1) containing the at least one polar solvent which is fed back into the hydrogenation reactor in step (a) and a two phase bottom mixture (S1) containing an upper phase (O2) which contains the at least one tertiary amine (A1) and a lower phase (U2) which contains the at least one formic acid/amine adduct (A2); (e) cleaving the at least one formic acid/amine adduct (A2) contained in the bottom mixture (S1) or optionally in the lower phase (U2) in a thermal cleaving unit in order to obtain the at least one tertiary amine (A1) which is fed back to the hydrogenation reactor in step (a) and formic acid which is discharged from the thermal cleaving unit wherein carbon monoxide is added to the lower phase (U1) the raffinate (R1) or the raffinate (R2) directly before and/or during step (c) and/or carbon monoxide is added to the bottom mixture (S1) or optionally the bottom phase (U2) directly before and/or during step (e).

    68.
    发明专利
    未知

    公开(公告)号：DE502006004540D1

    公开(公告)日：2009-09-24

    申请号：DE502006004540

    申请日：2006-10-09

    Applicant: BASF SE

    Inventor： GERLINGER WOLFGANG ,  MATTKE TORSTEN ,  BEY OLIVER

    IPC: B01J8/00 ,  B01J10/00 ,  B01J8/02

    Abstract: A shell-and-tube reactor is disclosed. Contact tubes are disposed within a cylindrical housing and are secured to tube plates. Gas and liquid phases are received via a feed opening in a lower end cap and discharged via an upper end cap in the housing. A distributor device for a gas phase/liquid phase mixture is disposed below the lowermost tube plate. The distributor device includes a distributor plate and a predistributor. The distributor plate is arranged horizontally within the housing and includes an active area having through-openings and a downward-extending margin, but does not extend over the entire cross section of the housing. The predistributor includes a second distributor plate disposed between the feed opening and the first distributor plate, wherein the second distributor plate includes a second active area with second through-openings and a second downward-extending margin.

Patent Agency Ranking