公开(公告)号：BR8803516A

公开(公告)日：1989-02-08

申请号：BR8803516

申请日：1988-07-13

Applicant: DEGUSSA

Inventor： WITZEL MICHAEL ,  KLEINSCHMIT PETER ,  PFEIFER WOLF-DIETER ,  VOIGT CARL ,  ALBERS PETER

IPC: B01J23/40 ,  C01C3/02 ,  B01J27/24

Abstract: A specific form of surface coating of Al2O3 catalysts, using additional amounts of aluminium ions and minimum amounts of platinum ions, made it possible to use Al2O3 as a catalyst for long-term operation (150 days and more) in the preparation of hydrogen cyanide from hydrocarbons and ammonia, preferably in the BMA process.

公开(公告)号：CA1213123A

公开(公告)日：1986-10-28

申请号：CA449530

申请日：1984-03-14

Applicant: DEGUSSA

Inventor： MANNER REINHARD ,  SCHAEFER HANS ,  VOIGT CARL ,  PFEIFER WOLF D

IPC: B01J19/24 ,  C01C3/02

Abstract: An increase in the throughput in the BMA-furnace or a BMA furnace chamber, respectively, without modification of the existing design and dimensions is achieved by converting the lower stage of the cooling head to a short-tube bundle-type heat exchanger whilst retaining the temperature profile needed for the process by the denser or less dense arrangement of the ceramic tubes in the furnace chamber and/or by using ceramic tubes having different inner and outer geometry and/or structure.

公开(公告)号：IT1127975B

公开(公告)日：1986-05-28

申请号：IT6704780

申请日：1980-01-14

Applicant: DEGUSSA

Inventor： VOIGT CARL ,  KLEINSCHMIT PETER ,  WALTER EBERHARD

IPC: C01C3/02 ,  C01C

Abstract: The known hydrocyanic acid-methane-ammonia (BMA) process for the production of hydrogen cyanide can now be carried out with liquified gases namely through the presence of additional hydrogen at the beginning of the reaction. The atomic ratio of carbon to nitrogen and hydrogen is from 1:1:7.1 to 1:1.33:13. As additional hydrogen there is the portion of hydrogen present coming out of the reaction "hydrocarbon+NH3". Otherwise the reaction conditions are the same as in the known BMA process.

公开(公告)号：CA1146719A

公开(公告)日：1983-05-24

申请号：CA359752

申请日：1980-09-03

Applicant: DEGUSSA

Inventor： BITTNER FRIEDRICH ,  VOIGT CARL ,  KLEINSCHMIT PETER

IPC: C01C3/02

Abstract: By introducing the reaction gas mixture of hydrocarbons and ammonia at increased speed through an inlet tube having one or several orifices into the reaction tube used in the BMA process the yield of HCN is increased substantially.

公开(公告)号：CS211369B2

公开(公告)日：1982-02-26

申请号：CS218580

申请日：1980-03-08

Applicant: DEGUSSA

Inventor： VOIGT CARL ,  KLEINSCHMIT PETER ,  WALTER EBERHARD

IPC: C01C3/02

Abstract: The known hydrocyanic acid-methane-ammonia (BMA) process for the production of hydrogen cyanide can now be carried out with liquified gases namely through the presence of additional hydrogen at the beginning of the reaction. The atomic ratio of carbon to nitrogen and hydrogen is from 1:1:7.1 to 1:1.33:13. As additional hydrogen there is the portion of hydrogen present coming out of the reaction "hydrocarbon+NH3". Otherwise the reaction conditions are the same as in the known BMA process.

公开(公告)号：DD149654A5

公开(公告)日：1981-07-22

申请号：DD21994780

申请日：1980-03-26

Applicant: DEGUSSA

Inventor： VOIGT CARL ,  KLEINSCHMIDT PETER ,  WALTER EBERHARD

IPC: C01C3/02

Abstract: The known hydrocyanic acid-methane-ammonia (BMA) process for the production of hydrogen cyanide can now be carried out with liquified gases namely through the presence of additional hydrogen at the beginning of the reaction. The atomic ratio of carbon to nitrogen and hydrogen is from 1:1:7.1 to 1:1.33:13. As additional hydrogen there is the portion of hydrogen present coming out of the reaction "hydrocarbon+NH3". Otherwise the reaction conditions are the same as in the known BMA process.

公开(公告)号：IT1129890B

公开(公告)日：1986-06-11

申请号：IT6878780

申请日：1980-11-21

Applicant: DEGUSSA

Inventor： VOIGT CARL ,  STRACK HANS ,  KLEINSCHMIT PETER

IPC: C01C1/12 ,  B01D53/02 ,  B01D53/04 ,  C01B39/14 ,  C01B39/22 ,  C01B39/24 ,  C01B39/26 ,  C01B39/30 ,  C01C3/02 ,  C01C

公开(公告)号：BR8401202A

公开(公告)日：1984-10-23

申请号：BR8401202

申请日：1984-03-15

Applicant: DEGUSSA

Inventor： MANNER REINHARD ,  SCHAEFER HANS ,  VOIGT CARL ,  PFEIFER WOLF DIETER

IPC: B01J19/24 ,  C01C3/02 ,  F27B1/08

公开(公告)号：ZA816404B

公开(公告)日：1982-09-29

申请号：ZA816404

申请日：1981-09-15

Applicant: DEGUSSA

Inventor： VOIGT CARL ,  KLEINSCHMIT PETER ,  MANNER REINHARD

IPC: B01J37/02 ,  B05C7/04 ,  B05C7/00 ,  B05D7/00 ,  B05D7/22 ,  B05D ,  B01J

Abstract: The previously carried out internal coating of contact tubes not only required very much manual labor and was very time consuming, but it was also unsatisfactory in regard to adhesion of the contact liquid to the surface and homogenity of the catalyst. By the simultaneous action of heat on the liquid interface in the tubes during the lowering of the liquid level as well as by a specially suited apparatus for this purpose which operates according to the principle of communicating tubes there is provided the possibility of a good adhesion to the surface as well as the formation of a homogeneous layer at very little operating expense.

公开(公告)号：FR2470092A1

公开(公告)日：1981-05-29

申请号：FR8022858

申请日：1980-10-24

Applicant: DEGUSSA

Inventor： VOIGT CARL ,  STRACK HANS ,  KLEINSCHMIT PETER

IPC: C01C1/12 ,  B01D53/02 ,  B01D53/04 ,  C01B39/14 ,  C01B39/22 ,  C01B39/24 ,  C01B39/26 ,  C01B39/30 ,  C01C3/02 ,  C01B33/28