公开(公告)号：CA1102522A

公开(公告)日：1981-06-09

申请号：CA333262

申请日：1979-08-07

Applicant: HOECHST AG

Inventor： NIERMANN HERMANN ,  REICHERT GUENTER ,  EBERT HANS ,  NEUMANN FRIEDRICH

IPC: C01B25/14

Abstract: PRODUCTION OF PHOSPHORUS PENTASULFIDE OF PREDETERMINED REACTIVITY The invention provides a process wherein a mixture prepared from starting materials comprised of P2S5 of high reactivity and low reactivity, respectively, is converted to phosphorus pentasulfide of predetermined reactivity lying between that of the high reactivity P2S5 and that of the low reactivity P2S5 starting materials. To this end, the starting materials are mixed in quantitative proportions which are selected in accordance with the respective reactivity of the starting materials and the resulting mixture is ground.

公开(公告)号：DK154771C

公开(公告)日：1989-05-29

申请号：DK347479

申请日：1979-08-20

Applicant: HOECHST AG

Inventor： NIERMANN HERMANN ,  REICHERT GUENTER ,  EBERT HANS ,  NEUMANN FRIEDRICH

IPC: C01B25/14

Abstract: The invention provides a process wherein a mixture prepared from starting materials comprised of P2S5 of high reactivity and low reactivity, respectively, is converted to phosphorus pentasulfide of predetermined reactivity lying between that of the high reactivity P2S5 and that of the low reactivity P2S5 starting materials. To this end, the starting materials are mixed in quantitative proportions which are selected in accordance with the respective reactivity of the starting materials and the resulting mixture is ground.

公开(公告)号：CA1139077A

公开(公告)日：1983-01-11

申请号：CA333701

申请日：1979-08-14

Applicant: HOECHST AG

Inventor： NIERMANN HERMANN ,  REICHERT GUENTER ,  EBERT HANS ,  NEUMANN FRIEDRICH

IPC: C01B25/14

Abstract: PROCESS AND APPARATUS FOR MAKING P2S5 OF LOW REACTIVITY The invention relates to a process for making phosphorus pentasulfide of low reactivity. To this end, molten phosphorus pentasulfide is solidified and the solidified product is ground. More specifically, solid phosphorus pentasulfide coming from a cooling zone with a temperature of 150 to 220.degree.C is introduced into a heat-insula-ted tank and freed therein from its immanent heat by controlled cooling at a rate of at most 30.degree.C/h. The invention also relates to an apparatus for carrying out this process.

公开(公告)号：CA1128429A

公开(公告)日：1982-07-27

申请号：CA348606

申请日：1980-03-27

Applicant: HOECHST AG

Inventor： EBERT HANS ,  KERBER HANS ,  QUECK ROBERT

IPC: B03C3/70 ,  B03C3/66

Abstract: OPERATION OF A LEAD-IN-DEVICE RECEIVING A CONDUCTOR PASSED THROUGH THE COVER OF AN ELECTRICAL PRECIPITATION APPARATUS The invention relates to a process for operating a lead-in-device receiving a conductor which passes through the cover of an electrical precipitation apparatus down to its electrode system. A portion of the conductor is encircled by an insulator which is radially spaced therefrom and of which the upper end provides support for a structural component having the conductor gastightly passed therethrough. The space inside the insulator receives a sealing gas which is maintained under a pressure higher than that prevailing in the electrical precipitation apparatus. The sealing gas used for operating the device is a gas mixture consisting of an inert gas and at least 10 volume% of methane.

公开(公告)号：CA1119820A

公开(公告)日：1982-03-16

申请号：CA323978

申请日：1979-03-22

Applicant: HOECHST AG

Inventor： DISKOWSKI HERBERT ,  EBERT HANS ,  KERN WINFRIED ,  RABOWSKY HANS ,  SCHAEFGEN BERNHARD ,  STENDEL JOACHIM

IPC: C01B25/02 ,  C01B25/027 ,  C21B11/10 ,  C22B4/00 ,  C22B5/10 ,  C21C5/54

Abstract: CARBON CARRIER SUITABLE FOR USE IN ELECTROTHERMAL REDUCTION PROCESSES, AND PROCESS FOR MAKING IT The invention provides carbon carriers of improved reactivity suitable for use in slag-forming electrothermal reduction processes. The improved carbon carriers contain 5 to 80 weight % of the particular slag formed in the reduction process. The invention also provides a process for making the carbon carriers.

公开(公告)号：CA1000474A

公开(公告)日：1976-11-30

申请号：CA176522

申请日：1973-07-16

Applicant: HOECHST AG

Inventor： EBERT HANS ,  HAAS HANS ,  KAMPMANN FRIEDRICH W ,  THOME HEINRICH

IPC: B01J2/14 ,  B01J2/26 ,  C05B19/00 ,  C22B1/24

公开(公告)号：DK154771B

公开(公告)日：1988-12-19

申请号：DK347479

申请日：1979-08-20

Applicant: HOECHST AG

Inventor： NIERMANN HERMANN ,  REICHERT GUENTER ,  EBERT HANS ,  NEUMANN FRIEDRICH

IPC: C01B25/14

Abstract: The invention provides a process wherein a mixture prepared from starting materials comprised of P2S5 of high reactivity and low reactivity, respectively, is converted to phosphorus pentasulfide of predetermined reactivity lying between that of the high reactivity P2S5 and that of the low reactivity P2S5 starting materials. To this end, the starting materials are mixed in quantitative proportions which are selected in accordance with the respective reactivity of the starting materials and the resulting mixture is ground.

公开(公告)号：CA996473A

公开(公告)日：1976-09-07

申请号：CA172823

申请日：1973-05-31

Applicant: HOECHST AG

Inventor： EBERT HANS ,  THUMMLER URSUS ,  WERNER HUGO

IPC: C01B25/02 ,  B03C3/88

Abstract: Continuous work-up of moist, phosphorus-containing residues, particularly of residues which originate from the filtration of yellow phosphorus or phosphorus-containing effluent water. To this end, intimate contact is produced, in an electrical precipitation zone adapted to free phosphorus furnace gas from dust, between the moist phosphorus-containing residue and hot dust originating from phosphorus furnace gas and covering the bottom portion of said electrical precipitation zone. Residue and dust are contacted in a quantitative ratio between 1 and 2. Resulting, substantially phosphorus-free residue is mechanically removed from the electrical precipitation zone together with dust precipitated from the phosphorus furnace gas, in the electrical precipitation zone. A phosphorus/water-mixture produced by vaporization of the moist residue is passed through the electrical precipitation zone and the mixture is introduced jointly with dust-free phosphorus furnace gas coming from the precipitation zone into a condensation zone placed downstream of the precipitation zone, wherein the mixture and dust-free phosphorus furnace gas are precipitated.

公开(公告)号：CA994251A

公开(公告)日：1976-08-03

申请号：CA165735

申请日：1973-03-09

Applicant: HOECHST AG

Inventor： EBERT HANS ,  KAMPMANN FRIEDRICH-WILHELM ,  THUMMLER URSUS ,  WERNER HUGO