公开(公告)号：CA2092777C

公开(公告)日：2003-06-24

申请号：CA2092777

申请日：1993-03-26

Applicant: HOECHST AG

Inventor： JANSEN ROLF-MICHAEL ,  HUG SIEGISMUT ,  DEGER HANS-MATTHIAS

IPC: C01B7/09 ,  B01D53/34 ,  B01D53/70 ,  B01D53/75 ,  C01B7/19 ,  B01J19/08 ,  C01B7/01

Abstract: The invention relates to a process for disposing of bromofluorocarbons or bromochlorofluorocarbons (termed halons below) or mixtures thereof with fluorocarbons (FCs) or chlorofluorocarbons (CFCs). The invention comprises thermally cleaving halons or halon-containing FCs or halon-containing CFCs, for example by means of an oxyhydrogen flame, cooling the resulting gas stream, oxidizing the hydrogen bromide formed in the cleavage to bromine by feeding excess elemental chlorine into the gas stream, absorbing the resulting HF or HCl from the gas stream with recovery of hydrofluoric acid or hydrochloric acid and finally separating elemental bromine and chlorine from each other by distillation or reducing both to give the salts.

公开(公告)号：CA2092777A1

公开(公告)日：1993-09-29

申请号：CA2092777

申请日：1993-03-26

Applicant: HOECHST AG

Inventor： JANSEN ROLF-MICHAEL ,  HUG SIEGISMUT ,  DEGER HANS-MATTHIAS

IPC: C01B7/09 ,  B01D53/34 ,  B01D53/70 ,  B01D53/75 ,  C01B7/19 ,  B01J19/08 ,  C01B7/01

Abstract: The invention relates to a process for disposing of bromofluorocarbons or bromochlorofluorocarbons (termed halons below) or mixtures thereof with fluorocarbons (FCs) or chlorofluorocarbons (CFCs). The invention comprises thermally cleaving halons or halon-containing FCs or halon-containing CFCs, for example by means of an oxyhydrogen flame, cooling the resulting gas stream, oxidizing the hydrogen bromide formed in the cleavage to bromine by feeding excess elemental chlorine into the gas stream, absorbing the resulting HF or HCl from the gas stream with recovery of hydrofluoric acid or hydrochloric acid and finally separating elemental bromine and chlorine from each other by distillation or reducing both to give the salts.

公开(公告)号：CA1260231A

公开(公告)日：1989-09-26

申请号：CA516017

申请日：1986-08-15

Applicant: HOECHST AG

Inventor： HUG SIEGISMUT ,  KORINTH JUERGEN ,  HANDKE WOLFGANG

IPC: C01B7/00 ,  C01B7/01 ,  C01B7/19 ,  F23G7/00 ,  F23G7/06 ,  F23J15/00 ,  F23M5/08 ,  C07C17/24 ,  C07C17/33

Abstract: A tubular vertically arranged down stream reactor for thermally cracking fluorocarbons is disclosed. The reactor has a burner system located at one end of the reactor, which system delimits the end face of a combustion chamber. The burner system has feed lines for a mixture of fluorohydrocarbon and fuel gas. The combustion chamber is provided with an ignition branch and devices for feeding and distributing a liquid. The combustion chamber is adjoined by an absorber of cylindrical blocks with bores parallel to the reactor axis for the liquid product stream and the gas. The bores lead into a downstream annular chamber which is provided with a branch for discharging gas and liquid. The other end of the reactor has a pressure relief orifice which is connected via a duct to the combustion chamber. The reactor is compact and makes possible the thermal cracking of even noncombustible fluorohydrocarbons.

公开(公告)号：BR8603900A

公开(公告)日：1987-03-24

申请号：BR8603900

申请日：1986-08-15

Applicant: HOECHST AG

Inventor： HUG SIEGISMUT ,  KORINTH JURGEN ,  HANDKE WOLFGANG

IPC: C01B7/00 ,  C01B7/01 ,  C01B7/19 ,  F23G7/00 ,  F23G7/06 ,  F23J15/00 ,  F23M5/08 ,  B01J19/02

Abstract: A tubular reactor for thermally cracking fluorohydrocarbons has a burner system (1) with feed lines (3, 4, 6, 7) for a mixture of fluorohydrocarbon and fuel gas and for flushing gas and oxygen or air provided at one end of the tubular reactor. This burner system delimits the end face of a combustion chamber (2) which, near the burner system, is provided with an ignition branch (9) and devices (10, 11, 12, 13, and 14) for feeding and distributing a liquid. The combustion chamber is adjoined by an absorber of cylindrical blocks (21) with bores (22) parallel to the reactor axis for a liquid product stream and a gas discharged from the combustion chamber. The bores lead into a downstream annular chamber (28) which is provided with a branch (29) for discharging gas and liquid. The other end of the reactor has a pressure relief orifice (33) which is connected via a duct (32) to the combustion chamber (2).

公开(公告)号：ES2001220A6

公开(公告)日：1988-05-01

申请号：ES8601080

申请日：1986-08-13

Applicant: HOECHST AG

Inventor： HUG SIEGISMUT ,  KORINTH JURGEN ,  HANDKE WOLFGANG

IPC: C01B7/00 ,  C01B7/01 ,  C01B7/19 ,  F23G7/00 ,  F23G7/06 ,  F23J15/00 ,  F23M5/08 ,  F23D14/02

Abstract: EN EL DISPOSITIVO PARA QUEMAR HIDROCARBUROS FLUORADOS QUE PERMITEN RETIRAR ACIDO FLUORHIDRICO Y/O ACIDO CLORHIDRICO APTOS PARA LA VENTA, ESTA DISPUESTO POR UN EXTREMO DEL REACTOR DE FORMA TUBULAR UN SISTEMA DE QUEMADORES (1), QUE TIENE CONDUCCIONES DE APORTACION (3, 4, 6, 7) PARA UNA MEZCLA DE UN HIDROCARBURO FLUORADO Y UN GAS DE COMBUSTION ASI COMO PARA GAS DE BARRIDO Y OXIGENO O AIRE. ESTE SISTEMA DE QUEMADORES LIMITA POR EL LADO FRONTAL A UNA CAMARA DE COMBUSTION (2), LA CUAL, CERCA DEL SISTEMA DE QUEMADORES, ESTA PROVISTA DE UNA BOCA DE INFLACION (9) Y DE DISPOSICIONES (10, 11, 12, 13, 14), PARA LA APORTACION Y LA DISTRIBUCION DE LIQUIDO. A LA CAMARA DE COMBUSTION LE SIGUE UN ABSORBEDOR A BASE DE BLOQUES CILINDRICOS (21) CON TALADROS (22), PARALELOS AL EJE GEOMETRICO DEL REACTOR PARA LA CORRIENTE LIQUIDA DE PRODUCTOS Y PARA EL GAS. LOS TALADROS DESEMBOCAN EN UNA SUBSIGUIENTE CAMARA ANULAR (28), LA CUAL ESTA PROVISTA DE UNA BOCA (29) PARA LA RETIRADA DE GAS Y LIQUIDO. EL OTRO EXTREMO DELREACTOR TIENE UN ORIFICIO (30) PARA ALIVIAR Y DESCARGAR LA PRESION, EL CUAL ESTA COMUNICADO CON LA CAMARA DE COMBUSTION (2) A TRAVES DE UN CANAL (32).