中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

4 records (took 0.026 seconds)

    1.
    发明专利
    未知

    公开(公告)号：NO20081897L

    公开(公告)日：2008-05-27

    申请号：NO20081897

    申请日：2008-04-22

    Applicant: BASF SE

    Inventor： STROFER ECKHARD ,  STAMMER ACHIM ,  LANG NEVEN ,  SIEGERT MARKUS ,  BOHLING RALF ,  OLDENBURG JAN

    IPC: C08G2/10 ,  C07D317/12 ,  C07D323/06 ,  C08G2/20

    Abstract: Preparation of trioxane and at least a comonomer for the preparation of (co)polymer on trioxane basis, comprises (a) converting formaldehyde and at least a co-monomer educt to trioxane and co-monomer in an aqueous solution to obtain a reaction mixture; (b) distilling the reaction mixture in a first distillation step at a first pressure to obtain stream (B1) and a stream (B2); and (c) distilling the stream (B1) in a second distillation step to obtain stream (C1) containing trioxane, co-monomer and water, and a product stream (C2) containing co-monomer and trioxane. Preparation of trioxane and at least a co-monomer for the preparation of (co)polymer on trioxane basis, comprises: (a) converting formaldehyde and at least a co-monomer educt to trioxane and co-monomer in an aqueous solution to obtain a reaction mixture containing trioxane, co-monomer, formaldehyde, water and optionally co-monomer educt, by synthesis step; (b) distilling the reaction mixture in a first distillation step at a first pressure to obtain stream (B1) enriched with trioxane and comonomer, and a stream (B2) containing water, formaldehyde and optionally comonomer-educt; and (c) distilling the stream (B1) in a second distillation step at a pressure above the pressure of the first distillation step to obtain stream (C1) containing trioxane, co-monomer and water, and a product stream (C2) containing co-monomer and trioxane.

    Process for producing trioxane and at least one comonomer
    4.
    发明专利
    Process for producing trioxane and at least one comonomer 未知

    公开(公告)号：AU2006310554A1

    公开(公告)日：2007-05-10

    申请号：AU2006310554

    申请日：2006-10-27

    Applicant: BASF SE

    Inventor： OLDENBURG JAN ,  BOHLING RALF ,  LANG NEVEN ,  STAMMER ACHIM ,  SIEGERT MARKUS ,  STROFER ECKHARD

    IPC: C08G2/10 ,  C07D317/12 ,  C07D319/00 ,  C07D323/06

    Abstract: Preparation of trioxane and at least a comonomer for the preparation of (co)polymer on trioxane basis, comprises (a) converting formaldehyde and at least a co-monomer educt to trioxane and co-monomer in an aqueous solution to obtain a reaction mixture; (b) distilling the reaction mixture in a first distillation step at a first pressure to obtain stream (B1) and a stream (B2); and (c) distilling the stream (B1) in a second distillation step to obtain stream (C1) containing trioxane, co-monomer and water, and a product stream (C2) containing co-monomer and trioxane. Preparation of trioxane and at least a co-monomer for the preparation of (co)polymer on trioxane basis, comprises: (a) converting formaldehyde and at least a co-monomer educt to trioxane and co-monomer in an aqueous solution to obtain a reaction mixture containing trioxane, co-monomer, formaldehyde, water and optionally co-monomer educt, by synthesis step; (b) distilling the reaction mixture in a first distillation step at a first pressure to obtain stream (B1) enriched with trioxane and comonomer, and a stream (B2) containing water, formaldehyde and optionally comonomer-educt; and (c) distilling the stream (B1) in a second distillation step at a pressure above the pressure of the first distillation step to obtain stream (C1) containing trioxane, co-monomer and water, and a product stream (C2) containing co-monomer and trioxane.

Patent Agency Ranking