公开(公告)号：DE2819826A1

公开(公告)日：1979-11-08

申请号：DE2819826

申请日：1978-05-05

Applicant: BAYER AG

Inventor： BECKER ROBERT DR ,  GROLIG JOHANN DR ,  RASP CHRISTIAN DR ,  SCHARFE GERHARD DR

IPC: C07C269/00 ,  B01J23/44 ,  B01J27/00 ,  B01J27/06 ,  B01J31/00 ,  C07C67/00 ,  C07C239/00 ,  C07C125/06

Abstract: This invention relates to an improved process for the production of urethanes (i.e. carbamic acid esters) by reacting organic nitro compounds with carbon monoxide and organic compounds containing at least one hydroxy group in the presence of a unique catalyst system. The catalyst system consists of palladium or a palladium compound and iron oxychloride or a mixture of iron compounds containing iron oxychloride.

公开(公告)号：DE2601154A1

公开(公告)日：1977-07-21

申请号：DE2601154

申请日：1976-01-14

Applicant: BAYER AG

Inventor： SCHARFE GERHARD DR

IPC: B01J23/28 ,  B01J23/38 ,  B01J23/40 ,  B01J23/44 ,  B01J23/52 ,  B01J23/58 ,  B01J35/00 ,  B01J37/02 ,  C07B61/00 ,  C07C67/05 ,  C07C67/055 ,  C07C69/15

公开(公告)号：DE2533429A1

公开(公告)日：1977-01-27

申请号：DE2533429

申请日：1975-07-25

Applicant: BAYER AG

Inventor： SCHARFE GERHARD DR ,  WENZEL RUPERT DR

IPC: C07C17/00 ,  C07C17/25 ,  C07C17/38 ,  C07C21/21 ,  C07C67/00

Abstract: Process for the production of 2-chlorobuta-1,3-diene (chloroprene) which comprises reacting 3,4-dichlorobut-1-ene and sodium butylate in n-butanol to produce a reaction mixture containing the 2-chlorobuta-1,3-diene and sodium chloride in the n-butanol with the sodium chloride being a suspended solid. The reaction mixture is distilled in a distillation column to separate the 2-chlorobuta-1,3-diene as top product and n-butanol having the sodium chloride suspended therein as sump product. The reaction can be performed in the distillation column.

公开(公告)号：DE2504981A1

公开(公告)日：1976-08-19

申请号：DE2504981

申请日：1975-02-06

Applicant: BAYER AG

Inventor： RASP CHRISTIAN DR ,  SCHARFE GERHARD DR

IPC: C07C45/54 ,  C07C51/09 ,  C07C67/055 ,  C07C33/02 ,  C07B3/00 ,  C07C47/02 ,  C07C49/08 ,  C07D303/04

Abstract: 3-Step process for prepn. of propylene oxidn. prods. having general summation formula C3H6O (I) e.g. propylene oxide, allyl alcohol, propionaldehyde and/or acetone, takes place by (a) reacting either C2H4, O2 and ACOH or C2H2 and AcOH to form vinyl acetate, (b) catalytically converting vinyl acetate with CO and H2 to 2-acetoxypropanol (II) (c) decomposing (II) thermally or catalytically, to (I) and AcOH. Process enables (i) prepn. of (I) from raw matls. other than propylene, (ii) prepn. of (I) in one plant. Compsn. of (I) can be adjusted by working conditions and catalyst in (c), e.g. propylene oxide is obtd. with basic catalysts, whereas allyl alcohol and propionaldehyde are obtd. predominantly on working without a catalyst or with acid catalyst.

公开(公告)号：DE2245633A1

公开(公告)日：1974-03-21

申请号：DE2245633

申请日：1972-09-16

Applicant: BAYER AG

Inventor： MARTIN MANFRED DR ,  KREKEL JOERG DR ,  SCHARFE GERHARD DR

IPC: C07C51/31 ,  C07C63/02

Abstract: Organic carboxylic acid anhydrides (I) are prepd. by (a) subjecting an aromatic hydrocarbon (II) to catalytic gas-phase oxidn. at a pressure of 3-10 atm. with a gas contg. 1-8 mole; O2; (b) cooling the effluent gas to a temp. below its dew point but above the m.p. of the resulting condensate; (c) separating the liq. phase from the gas phase; (d) recycling part or all of the gas phase under pressure for further oxidn.; and (d) sepg. (I) from the liq. phase, pref. by distn.

公开(公告)号：DE2245555A1

公开(公告)日：1974-03-21

申请号：DE2245555

申请日：1972-09-16

Applicant: BAYER AG

Inventor： SCHARFE GERHARD DR ,  GROLIG JOHANN DR

IPC: C07C46/02 ,  C07C49/68

Abstract: Anthraquinone (I) is prepd. by (a) gas-phase oxidn. of naphthalene (II) to naphthoquinone and phthalic anhydride (III), followed by (b) reacting the oxidn. prodt. with butadiene at increased temp. in presence of (II), (c) sepg. (II) from the mixt. of (II), tetrahydroanthraquinone (IV) and (III) formed, (d) treating the remaining mixt. of (IV) and (III) with mol. O2 at increased temp., and (e) removing (III) from the resulting mixt. of (I) and (III). Formation of phthalic acid is avoided.

公开(公告)号：CH529092A

公开(公告)日：1972-10-15

申请号：CH151470

申请日：1970-02-03

Applicant: BAYER AG

Inventor： SWODENK WOLFGANG DR ,  SCHARFE GERHARD DR

IPC: C07C67/055 ,  C07C20060101 ,  C07C67/00 ,  C07C67/04 ,  C07C67/05 ,  C07C69/00 ,  C07C69/12 ,  C07C69/14 ,  C07C69/155

公开(公告)号：DE1793366A1

公开(公告)日：1972-03-02

申请号：DE1793366

申请日：1968-09-06

Applicant: BAYER AG

Inventor： KROENIG WALTER DR ,  SCHARFE GERHARD DR ,  DORNFELDT WOLFRAM DR

IPC: B01J31/22 ,  C07C67/05 ,  C07C69/155 ,  C07C67/04

公开(公告)号：DE2960044D1

公开(公告)日：1981-02-05

申请号：DE2960044

申请日：1979-04-23

Applicant: BAYER AG

Inventor： BECKER ROBERT DR ,  GROLIG JOHANN DR ,  RASP CHRISTIAN DR ,  SCHARFE GERHARD DR

IPC: C07C269/00 ,  B01J23/44 ,  B01J27/00 ,  B01J27/06 ,  B01J31/00 ,  C07C67/00 ,  C07C239/00 ,  C07C125/06

Abstract: This invention relates to an improved process for the production of urethanes (i.e. carbamic acid esters) by reacting organic nitro compounds with carbon monoxide and organic compounds containing at least one hydroxy group in the presence of a unique catalyst system. The catalyst system consists of palladium or a palladium compound and iron oxychloride or a mixture of iron compounds containing iron oxychloride.

公开(公告)号：DE2721597A1

公开(公告)日：1978-11-16

申请号：DE2721597

申请日：1977-05-13

Applicant: BAYER AG

Inventor： RASP CHRISTIAN DR ,  SCHARFE GERHARD DR

IPC: B01D53/86 ,  B01J23/42 ,  B01J23/44 ,  B01D53/00 ,  B01D53/34