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    PROCESS FOR THE PRODUCTION OF 3-METHYL PYRIDINE
    14.
    发明专利
    PROCESS FOR THE PRODUCTION OF 3-METHYL PYRIDINE 未知

    公开(公告)号：CA1072563A

    公开(公告)日：1980-02-26

    申请号：CA295631

    申请日：1978-01-25

    Applicant: DEGUSSA

    Inventor： BESCHKE HELMUT ,  FRIEDRICH HEINZ

    IPC: C07D213/09 ,  B01J21/00 ,  C07B61/00 ,  C07D213/12

    Abstract: The present invention provides a process for the production of 3-methyl pyridine by catalytically reacting acrolein and propionaldehyde with ammonia in the gas phase, wherein the catalysts used are highly disperse aluminium silicates which contain from 3 to 30% by weight of aluminium oxide, have a BET-surface of from 200 to 800 m2/g, a pore volume of from 0.4 to 1.0 cm3/g and a pore diameter of from 20 to 100.10-8 cm.

    16.
    发明专利
    未知

    公开(公告)号：DE2712694A1

    公开(公告)日：1978-09-28

    申请号：DE2712694

    申请日：1977-03-23

    Applicant: DEGUSSA

    Inventor： BESCHKE HELMUT ,  FRIEDRICH HEINZ DR

    IPC: C07D213/12 ,  C07D213/22

    Abstract: The present invention provides a process for producing pyridines which are aromatically and heteroaromatically substituted in the 2 and 3 position, in which aromatically and heteroaromatically substituted ketones, which have at least one reactive methylene group adjacent to the keto group, are reacted with aliphatic oxo compounds, which have an unsaturated carbon bond adjacent to the oxo group, in the gas phase in the presence of ammonia and in the presence of a catalyst having dehydrating and dehydrogenating properties at temperatures from approximately 250 to550.degree.C.

    18.
    发明专利
    未知

    公开(公告)号：DE2449340A1

    公开(公告)日：1976-04-22

    申请号：DE2449340

    申请日：1974-10-17

    Applicant: DEGUSSA

    Inventor： BESCHKE HELMUT ,  FRIEDRICH HEINZ DR ,  SCHREYER GERD DR

    IPC: C07D213/12

    Abstract: Pyridine and 3-methyl pyridine are prepared by reacting acrolein with ammonia in the gas phase on a catalyst in a fluidized bed. The acrolein and ammonia are introduced separately in gaseous form into the reactor.

    19.
    发明专利
    未知

    公开(公告)号：DE2252002A1

    公开(公告)日：1974-05-09

    申请号：DE2252002

    申请日：1972-10-24

    Applicant: DEGUSSA

    Inventor： BESCHKE HELMUT ,  SCHULER WILHELM DR

    IPC: C07D213/61 ,  C07D31/26

    Abstract: 2-CHLOROPYRIDINE IS PREPARED FROM PYRIDINE IN THE PRESENCE OF STEAM AT A TEMPERATURE OF 300 DEG TO 400 DEG C. employing 0.4 to 0.5 mole of chlorine and 0.5 to 2 moles of steam per mole of pyridine.

    20.
    发明专利
    未知

    公开(公告)号：DE1667443A1

    公开(公告)日：1972-01-05

    申请号：DE1667443

    申请日：1967-01-17

    Applicant: DEGUSSA

    Inventor： BESCHKE HELMUT ,  PFLEGER HANS DR ,  BERNDT WILHELM DR ,  NAUROTH PETER

    IPC: C09C1/00 ,  C01B33/20 ,  C09C1/28

    Abstract: 1,221,796. Paper. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT. 15 Jan., 1968 [17 Jan., 1967], No. 2117/68. Addition to 1,155,523. Heading D2B. [Also in Division C1] A paper filler having reactive groups capable of absorbing dyes by reaction therewith is prepared by precipitating a silicate of an alkalineeanth metal or of Al, Sc, Y or La from an aqueous alkali metal silicate solution in the presence of organic water-soluble polymer (see Division C1). The reactive groups in the filler can be cross-linked with a polyvalent reagent to improve the bonding between the paper fibres and the filler. The polymer may be polyvinyl alcohol, polyethylene urine, polyacrolein, polymethacrylic acid, polyethylene oxide, cationic or anionic starch, polyvinyl pyrrolidone, polyvinyl-3- methyl pyrrolidone, vinyl pyrrolidone/vinyl acetate copolymers, polyacrylamide, urea resin, melamine resin, may be dissolved in the reaction mixture before precipitation, or gradually added thereto during precipitation, or added in such a manner that a silicate core with an organically-modified shell is obtained.

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