公开(公告)号：DE1940168A1

公开(公告)日：1971-02-25

申请号：DE1940168

申请日：1969-08-07

Applicant: BASF AG

Inventor： GOESELE WILHELM DR ,  WOLF HERBERT DR-ING

IPC: C01B17/77 ,  C01B17/68

公开(公告)号：DE1767141A1

公开(公告)日：1971-08-19

申请号：DE1767141

申请日：1968-04-05

Applicant: BASF AG

Inventor： GOESELE WILHELM DR ,  KLINGER WILLI DR ,  SCHREINER SIEGFRIED DR ,  WOLF HERBERT DR-ING

IPC: C01B17/88 ,  C01B17/74

公开(公告)号：DE1667392A1

公开(公告)日：1971-06-09

申请号：DE1667392

申请日：1967-09-15

Applicant: BASF AG

Inventor： WOLF HERBERT DR-ING ,  GOESELE WILHELM DR ,  SCHREINER SIEGFRIED DR ,  HETTLER FRIEDRICH DIPL-ING ,  STUMPFI HANS DIPL-ING

IPC: B01J8/00 ,  C22B1/10 ,  C01B17/52

公开(公告)号：DE1767730A1

公开(公告)日：1971-09-23

申请号：DE1767730

申请日：1968-06-11

Applicant: BASF AG

Inventor： WOLF HERBERT DR-ING ,  GOESELE WILHELM DR ,  KLINGLER WILL DR

IPC: C01B17/765 ,  C01B17/77 ,  C01B17/76

公开(公告)号：DE1667404A1

公开(公告)日：1971-06-09

申请号：DE1667404

申请日：1968-03-01

Applicant: BASF AG

Inventor： WOLF HERBERT DR-ING ,  GOESELE WILHELM DR

IPC: C01B17/52 ,  C22B1/08

公开(公告)号：DE1767753A1

公开(公告)日：1971-09-30

申请号：DE1767753

申请日：1968-06-12

Applicant: BASF AG

Inventor： WOLF HERBERT DR-ING ,  GOESELE WILHELM DR

IPC: C01B17/52 ,  C22B1/10

Abstract: A fluidized-bed method of roasting sulfidic materials containing arsenic and/or antimony with a gas containing oxygen with separate supply of the gas containing oxygen for the preroasting in a first stage and for the afterroasting in the second stage and with separate withdrawal of the roaster gas from the preroasting stage and from the afterroasting stage. The dusty portion of the roasted intermediate product from the first stage is introduced periodically into the fluidized bed of the second stage and, in timed relationship with this periodic introduction of the roasted intermediate product, air is periodically introduced into the gas space above the fluidized bed in the second layer in such an amount that it is adequate for complete roasting of the dusty roasted intermediate products suspended in this gas space.

公开(公告)号：DE974379C

公开(公告)日：1960-12-08

申请号：DEB0028668

申请日：1953-12-03

Applicant: BASF AG

Inventor： JOHANNSEN ADOLF DR ,  WITTMANN GEORG DR ,  WOLF HERBERT DR-ING

IPC: B03B1/02

公开(公告)号：DE940042C

公开(公告)日：1956-03-08

申请号：DEB0017207

申请日：1951-07-03

Applicant: BASF AG

Inventor： JOHANNSEN ADOLF DR ,  HETTLER FRIEDRICH DIPL-ING ,  LAMPE FERDINAND DIPL-ING ,  WOLF HERBERT DR-ING

IPC: C01B17/52