公开(公告)号：DD238959A5

公开(公告)日：1986-09-10

申请号：DD28125785

申请日：1985-10-01

Applicant: HOECHST AG

Inventor： STAENDEKE HORST ,  THUEMMLER URSUS

IPC: C01B25/00 ,  C01B25/023

公开(公告)号：CA1209788A

公开(公告)日：1986-08-19

申请号：CA449414

申请日：1984-03-12

Applicant: HOECHST AG

Inventor： THUEMMLER URSUS ,  WERNER HUGO

IPC: B01J19/28 ,  C01B25/02 ,  C01B25/023

Abstract: APPARATUS FOR MAKING RED PHOSPHORUS The disclosure relates to an apparatus for making red phosphorus by subjecting molten yellow phosphorus to a thermal conversion reaction in a drum packed with ballshaped material and provided with a first and second rotatably mounted shafts, of which at least one is a hollow shaft. More particularly, a rotatable feed duct (5, 6) is tightly connected to each of first hollow shaft (2) and second hollow shaft (3); a floor-anchored torque-support-ing means (7) is secured to each of the two rotatable feed ducts (5, 6); an open-ended stationary tube (8) is passed through rotatable feed duct (5) and also through the first hollow shaft (2), the tube terminating with its open end at a point where the first hollow shaft (2) opens into the drum (1); a second unilaterally closed stationary tube (12) is passed through the second rotatable feed duct (6) and also through the said second hollow shaft (3), the tube terminating with its closed end at a point where the second hollow shaft (3) opens into the said drum (1); and a pressure-receiving means (15) is mounted in a lateral opening provided in said second rotatable feed duct (6).

公开(公告)号：ZA8403136B

公开(公告)日：1984-12-24

申请号：ZA8403136

申请日：1984-04-27

Applicant: HOECHST AG

Inventor： KUXDORF BERNHARD ,  LUHR PETER ,  WERNER HUGO ,  THUEMMLER URSUS ,  DORN FRIEDRICH-WILHELM

IPC: B01J19/00 ,  C01B25/12 ,  C01B

CPC classification number: C01B25/12 ,  B01J19/0013 ,  B01J2219/00094

公开(公告)号：CA1128291A

公开(公告)日：1982-07-27

申请号：CA345959

申请日：1980-02-19

Applicant: HOECHST AG

Inventor： LEHR KLAUS ,  HEYMER GERO ,  STEPHAN HANS-WERNER ,  THUEMMLER URSUS

IPC: B01J8/10 ,  B01J19/28 ,  B02C17/00 ,  C01B25/02 ,  C01B25/023

Abstract: The invention relates to a process for making red phosphorus by subjecting molten yellow phosphorus to a thermal conversion reaction in a closed reaction zone. To this end, a hollow shaft-provided and closed ball mill is preheated to a reaction temperature within the range 280 to 590.degree.C. Yellow phosphorus is continuously introduced into the ball mill through the hollow shaft in quantities per unit time through the hollow shaft temperature prevailing inside the ball mill to be maintained without supply of heat from the outside. More particularly, decreasing quantities of yellow phosphorus are introduced per unit time at increasing temperature and increasing quantities of yellow phosphorus are introduced per unit time at decreasing temperature within the limits specified. Red phosphorus is allowed to cool inside the ball mill, water is poured over it and the whole is subjected to wet-grinding. An aqueous suspension of red phosphorus is finally removed from the ball mill.