公开(公告)号：DE1443498A1

公开(公告)日：1968-11-07

申请号：DE1443498

申请日：1963-11-15

Applicant: BASF AG

Inventor： HUGO KROEPER DR ,  ROLF PLATZ DR ,  HELMUT SCHMIDT DR

IPC: C07C263/10

公开(公告)号：DE1420206A1

公开(公告)日：1968-10-31

申请号：DE1420206

申请日：1955-09-09

Applicant: BASF AG

Inventor： HUGO KROEPER DR ,  ROLF PLATZ DR ,  HANS-MARTIN WEITZ DR ,  HANS WILD DR

IPC: C08F2/00 ,  C08F10/00

公开(公告)号：DE1443535A1

公开(公告)日：1968-10-24

申请号：DE1443535

申请日：1964-08-12

Applicant: BASF AG

Inventor： HUGO KROEPER DR ,  HANS-MARTIN WEITZ DR ,  ROLF PLATZ DR ,  KARL SCHLOEMER DR

IPC: C07C67/04 ,  C07C69/54

Abstract: Tertiary alkyl acrylates or methacrylates of the formula wherein R1 denotes an H atom or the -CH3 group and the R2 radicals which may be the same or different denote an alkyl group having from 1 to 4 C atoms, are prepared by reacting acrylic or methacrylic acid with a tertiary olefin of formula where R2 has the above meaning and R3 denotes an alkylidene group with 1 to 4 C atoms, in the presence of an active bleaching earth containing from 0.005 to 0.1 milliequivalents per gram of free titratable acid at atmospheric or superatmospheric pressure and at a temperature of from 0 DEG C. to 40 DEG C. A suitable bleaching earth comprises 50 to 70% of SiO2, 10 to 30% of Al2O3, 2 to 8% of Fe2O3, 1 to 9% of MgO and small amounts of the oxides of the other alkaline earth metals (all percentages are by weight). Examples describe the production of tertiary-butyl acrylate.

公开(公告)号：DE1418047A1

公开(公告)日：1968-10-10

申请号：DE1418047

申请日：1958-02-15

Applicant: BASF AG

Inventor： HUGO KROEPER DR ,  ROLF PLATZ DR

IPC: B01J8/26 ,  B01J8/28 ,  C07C4/06 ,  C07C5/32 ,  C07C5/333 ,  C07C5/367 ,  C10G11/18

Abstract: In the catalytic dehydrogenation of hydrocarbons such as butanes, butenes, pentanes, pentenes, cyclohexane or petroleum naptha, using a fluidised bed of catalyst with simultaneous regeneration with an oxygen-containing gas, the regeneration bed is in communication only at its upper end with the cracking bed and, when the beds are side by side, ends a sufficient distance below the level of the cracking bed that sufficient exchange of catalyst occurs between the beds and the constitution and speed of the regenerating gas are regulated so that the oxygen is practically used up in the regeneration bed. The regeneration bed may be one or more tubes inside the cracking bed as shown in Fig. 1, or one or more coaxial annular spaces within the cracking bed. Alternatively an arrangement as shown in Fig. 3 may be used wherein the regeneration bed is wholly below the cracking bed, oxygen being introduced by pipe 14 and hydrocarbons by pipe 15 to distribution grid 16. Examples refer to the dehydrogenation of butylene or butane-butylene mixtures to butadiene of cyclohexane to benzene, of ethane to ethylene, of propane to propylene, of methyl butenes or methyl butene-isopentane mixtures to isoprene, of isobutane to isobutylene, and the cracking of a 40-80 DEG C. boiling range naphtha to ethylene, propylene, butylenes, pentylenes and light saturated hydrocarbons. A diluent gas or vapour may be added to the cracking or dehydrogenation reaction.