公开(公告)号：DE2703070A1

公开(公告)日：1978-07-27

申请号：DE2703070

申请日：1977-01-26

Applicant: DEGUSSA

Inventor： BESCHKE HELMUT ,  FRIEDRICH HEINZ DR

IPC: C07D213/09 ,  B01J21/00 ,  C07B61/00 ,  C07D213/12 ,  C07D213/08

公开(公告)号：DE2703049A1

公开(公告)日：1978-07-27

申请号：DE2703049

申请日：1977-01-26

Applicant: DEGUSSA

Inventor： BESCHKE HELMUT ,  FRIEDRICH HEINZ DR

IPC: C07D213/10 ,  B01J21/00 ,  C07B61/00 ,  C07D213/04 ,  C07D213/12 ,  C07D213/08

公开(公告)号：CH599158A5

公开(公告)日：1978-05-12

申请号：CH488376

申请日：1976-04-15

Applicant: DEGUSSA

Inventor： BESCHKE HELMUT ,  FRIEDRICH HEINZ DR ,  MUELLER KLAUS-PETER DR ,  SCHREYER GERD DR

IPC: C07D213/82 ,  C07D213/81

Abstract: Nicotinamide is recovered from the reaction mixture resulting from the hydrolysis of nicotinonitrile at elevated temperature by converting the nicotinamide into a melt while removing the solvent.

公开(公告)号：DE2208007A1

公开(公告)日：1973-09-13

申请号：DE2208007

申请日：1972-02-21

Applicant: DEGUSSA

Inventor： BESCHKE HELMUT ,  SCHAEFER HANS DR ,  SCHULER WILHELM-ALFONS

IPC: C07D213/61 ,  C07D31/26

公开(公告)号：GB1155523A

公开(公告)日：1969-06-18

申请号：GB2796267

申请日：1967-06-16

Applicant: DEGUSSA

Inventor： BESCHKE HELMUT ,  PFLEGER HANS ,  FERCH HORST ,  EISENMENGER EDITH

IPC: C01B33/187 ,  B01J21/00 ,  B01J21/04 ,  B01J21/08 ,  B01J39/16 ,  B01J39/17 ,  C01B33/193 ,  C08F8/00 ,  C09C1/00 ,  C09C1/28 ,  C09C1/30 ,  C09D7/00

Abstract: 1,155,523. Organically - modified silica. DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT. 16 June, 1967 [18 June, 1966], No. 27962/67. Heading C1A. Finely-divided organically modified silica is precipitated, preferably at 50-90‹ C., from a silicate solution, e.g. water glass, by an inorganic or organic acid in the presence of one or more water-soluble organic polymers capable of undergoing modification of their properties by chemical reactions and of combination with silica, e.g. polyvinyl alcohol, polyethylene imine, polyacrolein, polymethacrylic acid, polyethylene oxide, polyvinyl pyrrolidone, polyvinyl-3- methyl pyrrolidone, vinyl pyrrolidone/vinyl acetate copolymers, polyacrylamide. The polymer(s) may be dissolved in the reaction mixture before precipitation or gradually added thereto during precipitation; in some cases a pure silica core may be formed around an organicallymodified shell. The polymers may be caused to undergo organic reactions, e.g. substitution, addition, salt or complex formation, or may be refined by substantive, reactive or leuco dyes at any time after silica is first formed (although not necessarily precipitated): examples of such reactions are given.

公开(公告)号：CA706396A

公开(公告)日：1965-03-23

申请号：CA706396D

Applicant: DEGUSSA

Inventor： BESCHKE HELMUT ,  SCHULER WILHELM A

公开(公告)号：DE1166206B

公开(公告)日：1964-03-26

申请号：DED0038638

申请日：1962-04-11

Applicant: DEGUSSA

Inventor： BESCHKE HELMUT ,  SCHULER DR WILHELM

IPC: C07D417/06 ,  C07D513/04

公开(公告)号：MX6429E

公开(公告)日：1985-05-30

申请号：MX956981

申请日：1981-07-27

Applicant: DEGUSSA

Inventor： BESCHKE HELMUT ,  DAHM FRANZ-LUDWIG ,  FRIEDRICH HEINZ ,  PRESCHER GUNTER

IPC: C07D213/82 ,  C07D213/81

公开(公告)号：IN154600B

公开(公告)日：1984-11-17

申请号：IN814CA1981

申请日：1981-07-20

Applicant: DEGUSSA

Inventor： BESCHKE HELMUT ,  DAHM FRANZ ,  FRIEDRICH HEINZ ,  PRESCHER GUNTER

IPC: C07D213/82 ,  C07D213/81 ,  C07D31/44

公开(公告)号：CH638786A5

公开(公告)日：1983-10-14

申请号：CH407479

申请日：1979-05-01

Applicant: DEGUSSA

Inventor： BESCHKE HELMUT ,  KLEEMANN AXEL DR

IPC: B01J21/00 ,  C07D213/06 ,  C07D213/12 ,  C07D409/06