公开(公告)号：AT353883T

公开(公告)日：2007-03-15

申请号：AT03752664

申请日：2003-05-13

Applicant: BASF AG

Inventor： FRIESE KATRIN ,  RAULS MATTHIAS ,  FREYHOF REINHARD ,  FRIESE THORSTEN ,  ARMBRUSTER HARALD ,  ZEINER HARTMUT ,  EGBERS GITTA ,  STROEFER ECKHARD ,  HECK LUDWIG ,  HILDENBRAND PETER

IPC: C07D323/06

Abstract: Production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: distillation of the crude trioxane; crystallization of the trioxane and; separation from the mother liquor followed by melting and distillation of other byproducts. A process for the production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: (a) distillation of the crude trioxane; (b) crystallization of the trioxane and; (c) separation from the mother liquor followed by; (d) melting and; (e) distillation of other byproducts.

公开(公告)号：PL374560A1

公开(公告)日：2005-10-31

申请号：PL37456003

申请日：2003-05-13

Applicant: BASF AG

Inventor： FRIESE KATRIN ,  RAULS MATTHIAS ,  FREYHOF REINHARD ,  FRIESE THORSTEN ,  ARMBRUSTER HARALD ,  ZEINER HARTMUT ,  EGBERS GITTA ,  STROEFER ECKHARD ,  HECK LUDWIG ,  HILDENBRAND PETER

IPC: C07D323/06

Abstract: Production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: distillation of the crude trioxane; crystallization of the trioxane and; separation from the mother liquor followed by melting and distillation of other byproducts. A process for the production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: (a) distillation of the crude trioxane; (b) crystallization of the trioxane and; (c) separation from the mother liquor followed by; (d) melting and; (e) distillation of other byproducts.

公开(公告)号：AU2003232760A8

公开(公告)日：2003-12-02

申请号：AU2003232760

申请日：2003-05-13

Applicant: BASF AG

Inventor： HECK LUDWIG ,  HILDENBRAND PETER ,  EGBERS GITTA ,  FREYHOF REINHARD ,  ARMBRUSTER HARALD ,  STROFER ECKHARD ,  FRIESE KATRIN ,  FRIESE THORSTEN ,  RAULS MATTHIAS ,  ZEINER HARTMUT

IPC: C07D323/06

Abstract: Production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: distillation of the crude trioxane; crystallization of the trioxane and; separation from the mother liquor followed by melting and distillation of other byproducts. A process for the production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: (a) distillation of the crude trioxane; (b) crystallization of the trioxane and; (c) separation from the mother liquor followed by; (d) melting and; (e) distillation of other byproducts.

公开(公告)号：DE10222163A1

公开(公告)日：2003-11-27

申请号：DE10222163

申请日：2002-05-17

Applicant: BASF AG

Inventor： WAGNER KATRIN ,  RAULS MATTHIAS ,  FREYHOF REINHARD ,  FRIESE THORSTEN ,  ARMBRUSTER HARALD ,  ZEINER HARTMUT ,  EGBERS GITTA ,  STROEFER ECKHARD ,  HECK LUDWIG E ,  HILDENBRAND PETER

IPC: C07D323/06

Abstract: Production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: distillation of the crude trioxane; crystallization of the trioxane and; separation from the mother liquor followed by melting and distillation of other byproducts. A process for the production of trioxane by trimerization of formaldehyde in aqueous acid solution followed by separation of trioxane from a crude trioxane product mixture of trioxane, water and formaldehyde comprises: (a) distillation of the crude trioxane; (b) crystallization of the trioxane and; (c) separation from the mother liquor followed by; (d) melting and; (e) distillation of other byproducts.