公开(公告)号：US3642659A

公开(公告)日：1972-02-15

申请号：US3642659D

申请日：1969-05-21

Applicant: BAYER AG

Inventor： DORN LUDWIG ,  HEINZE GERHARD ,  PODSCHUS ERNST

IPC: C01B17/79 ,  B01J2/08 ,  B01J21/16 ,  B01J23/22 ,  B01J37/00 ,  B01J11/82 ,  B01J11/40 ,  B01J11/44

CPC classification number: B01J2/08 ,  B01J21/16 ,  B01J37/0072

Abstract: POROUS, ABRASION-RESISTANT BEAD-LIKE CATALYST SUPPORTS FOR REACTIONS IN FLUIDISED BEDS CONTAINING IN A MATRIX OF A SILICON DIOXIDE GELMIXED WITH 0.1 TO 3% BY WEIGHT OF MAGNESIUM OXIDE A SILICON DIOXIDE FILLER WITH A SPECIFIC SURFACE AREA OF 20 TO 200 M.2/G. ACCORDING TO BET IN QUANTITIES OF FROM 20 TO 60% BY WEIGHT AND AN ARGILLACEOUS MINERAL FROM THE GROUP COMPRISING KAOLINITE, MONTMORILLONITE AND ATTAPULGITE IN QUANTITIES OF FROM 5 TO 30% BY WEIGHT, BOTH QUANTITIES BEING RELATED TO THE DRY GRANULATED MATERIAL. THE CATALYST SUPPORTS ARE OBTAINED BY SUSPENDING THE SILICON DIOXIDE FILLER AND THE ARGILLACEOUS MINERAL IN THE AFORESAID QUANTITIES IN AN AQUEOS, STABLE SILICON DIOXIDE SOL WITH A SPECIFIC SURFACE AREA OF 150 TO 400 M.2/G. ACCORDING TO BET AND GELLING THE LIQUID SUSPENSION BY THE ADDITION OF HYDRATED FINALLY DIVIDED MAGNESIUM OXIDE IN QUANTITIES OF 0.1 TO 3% BY WEIGHT AND FEEDING THIS GELLABLE MIXTURE IN DROPLET FORM INTO A LIQUID WHICH IS IMMISCIBLE WITH WATER AND FINALLY SEPARATING THE SULPHATED GRANULATED MATERIAL FROM THE LIQUID AND DRIVING AND HARDENING THE BEAD-LIKE GRANULATED MATERIAL FOR AT LEAST 10 MINUTES AT A TEMPERATURE OF FROM 500 TO 1000*C.

公开(公告)号：US3880985A

公开(公告)日：1975-04-29

申请号：US25859872

申请日：1972-06-01

Applicant: BAYER AG

Inventor： HAESELER HARKE ,  DORN LUDWIG ,  MOLLER WILHELM ,  WOKULAT JORGEN ,  RUBSAM FRANZ ,  HEINZE GERHARD

IPC: C01B17/765 ,  C01B17/77 ,  C01B17/68

CPC classification number: C01B17/7655 ,  C01B17/77

Abstract: Sulphur trioxide is produced from SO2 containing gases in a multi-stage catalytic conversion plant employing intermediate absorption. In the first stage the catalyst is maintained as a fluidised bed and the SO2 containing gas is introduced into the bed at a temperature of up to about 300*C. The conversion in said fluidised bed is at least 60%. High overall conversions, with improved heat economy, are obtained.

Abstract translation: 在使用中等吸收的多级催化转化装置中，由含SO2的气体产生三氧化硫。 在第一阶段，将催化剂保持为流化床，并将含SO 2的气体在高达约300℃的温度下引入床中。所述流化床中的转化率至少为60％。 获得了具有改善的热经济性的高整体转化率。

公开(公告)号：US3549317A

公开(公告)日：1970-12-22

申请号：US3549317D

申请日：1968-07-17

Applicant: BAYER AG

Inventor： DORN LUDWIG ,  PODSCHUS ERNST

IPC: B01J20/10 ,  C01B33/18 ,  C01B33/193 ,  C01F11/22

CPC classification number: C01B33/193 ,  B01J20/103 ,  C01B33/186 ,  C01F11/22 ,  C01P2006/12

公开(公告)号：US3676366A

公开(公告)日：1972-07-11

申请号：US3676366D

申请日：1969-08-19

Applicant: BAYER AG

Inventor： PODSCHUS ERNST ,  DORN LUDWIG ,  HEINZE GERHARD

IPC: B01J21/00 ,  B01J21/08 ,  B01J11/44

CPC classification number: B01J21/08 ,  B01J21/00

Abstract: Catalyst supports in bead form having a porosity of more than 60 percent formed by suspending finely divided silicate and/or silica fillers, carbonates, metal oxides and hydroxides compatible with a silica sol, in a silica sol so that the total weight of the solids is at least 50 percent by weight based on the silica content of the silica sol, dispersing the resulting mixture into drops of the required size, gelling the drops in a water-immiscible medium, separating the resulting granulate from the medium, subjecting the granulate to a heat treatment at 100* to 800* C, and subsequent acid treatment to remove a major portion of the cations, and washing the acid treated granulates.

Abstract translation: 通过将二氧化硅溶胶中的细碎硅酸盐和/或二氧化硅填料，碳酸盐，金属氧化物和与硅溶胶相容的氢氧化物悬浮在二氧化硅溶胶中形成的具有大于60％的孔隙率的催化剂载体，使得固体的总重量为 至少50重量％，基于二氧化硅溶胶的二氧化硅含量，将所得混合物分散到所需尺寸的液滴中，将液滴凝胶在与水不混溶的介质中，将所得颗粒与介质分离，使颗粒经受 在100℃至800℃下进行热处理，然后进行酸处理以除去大部分阳离子，并洗涤经酸处理的颗粒。