公开(公告)号：US3501550A

公开(公告)日：1970-03-17

申请号：US3501550D

申请日：1968-09-03

Applicant: BAYER AG

Inventor： BRANDT HANS-WALTHER ,  ENGELHARD BRUNO ,  KRONIG WALTER ,  SCHWERDTEL WULF

IPC: C07C7/08 ,  C07C11/18 ,  C10G21/20

CPC classification number: C10G21/20 ,  C07C7/08 ,  C07C11/18

公开(公告)号：US3505400A

公开(公告)日：1970-04-07

申请号：US64081367

申请日：1967-05-24

Applicant: BAYER AG

Inventor： KRONIG WALTER ,  SCHWERDTEL WULF

IPC: C07C51/23 ,  C07C51/245 ,  C07C67/08 ,  C07C53/08 ,  C07C51/24

CPC classification number: C07C51/245 ,  C07C51/23 ,  C07C67/08 ,  C07C53/02 ,  C07C53/08 ,  C07C69/14

公开(公告)号：US3493609A

公开(公告)日：1970-02-03

申请号：US3493609D

申请日：1967-05-09

Applicant: BAYER AG

Inventor： KRONIG WALTER ,  SCHWERDTEL WULF ,  WEICHT BODO

IPC: C07C51/245 ,  C07C51/24 ,  C07C51/42

CPC classification number: C07C51/245 ,  C07C53/08

公开(公告)号：US3905875A

公开(公告)日：1975-09-16

申请号：US23508972

申请日：1972-03-15

Applicant: BAYER AG

Inventor： KRONIG WALTER ,  SCHWERDTEL WULF

IPC: B01D3/36 ,  C07C67/055 ,  C07C67/06

CPC classification number: B01D3/36 ,  C07C67/055 ,  C07C67/54 ,  Y02P20/582 ,  C07C69/15

Abstract: Crude liquid vinyl acetate comprising as the principal components, vinyl acetate, acetic acid, water, and ethyl acetate, is purified by introducing the liquid vinyl acetate into a single distillation zone, withdrawing an azeotropic mixture consisting essentially of vinyl acetate and water as the head product from said zone, separating said azeotropic mixture into a water phase and a vinyl acetate phase, recycling a sufficient quantity of said vinyl acetate phase to the top of said distillation zone to cause removal, by means of said head product, of a major portion of the water originally contained in the crude liquid vinyl acetate, withdrawing from the bottom of the zone acetic acid substantially free of vinyl acetate and containing from aboout 0.5 to 6% by weight of water and some of the ethyl acetate initially present in said crude liquid vinyl acetate, and withdrawing a side stream comprising ethyl acetate, acetic acid, vinyl acetate, and water from said distillation zone at a point intermediate the eighth and sixteenth distillation trays in said zone.

Abstract translation: 将乙酸乙烯酯，乙酸，水和乙酸乙酯作为主要组分的粗液体乙酸乙烯酯通过将液体乙酸乙烯酯引入单个蒸馏区而提纯，将基本上由乙酸乙烯酯和水组成的共沸混合物作为头 产物从所述区域分离，将所述共沸混合物分离成水相和乙酸乙烯酯相，将足够量的所述乙酸乙烯酯相再循环到所述蒸馏区的顶部，以通过所述头部产物除去主要部分 最初包含在粗液体乙酸乙烯酯中的水，从基本上不含乙酸乙烯酯的乙酸基区的底部排出，并含有0.5至6重量％的水和一些最初存在于所述粗液中的乙酸乙酯 乙酸乙烯酯，并且从所述蒸馏区抽出含有乙酸乙酯，乙酸，乙酸乙烯酯和水的侧流 在所述区域中的第八和第十六蒸馏塔盘中间。

公开(公告)号：US3673265A

公开(公告)日：1972-06-27

申请号：US3673265D

申请日：1970-07-23

Applicant: BAYER AG

Inventor： SWODENK WOLFGANG ,  SCHWERDTEL WULF ,  LOSACKER PAUL ,  ENGELHARD BRUNO

IPC: C07C1/00 ,  C07C7/05 ,  C07C11/18 ,  C07C67/00

CPC classification number: C07C11/18 ,  C07C7/05 ,  C07C11/00

Abstract: A crude hydrocarbon mixture containing isoprene and isobutene in addition to formaldehyde monomer and polymers, such as is obtained by cracking 4,4-dimethyl-1,3-dioxane, is subjected to distillation in a column which is supplied near its head with liquid water, fouling of the column thereby being reduced and the distillate being obtained in higher purity.

Abstract translation: 除甲醛单体和聚合物外，含有异戊二烯和异丁烯的粗制烃混合物，如通过裂解4,4-二甲基-1,3-二恶烷得到的聚合物，在塔顶附近用液态水进行蒸馏 因此柱的结垢减少，并且获得的馏出物以更高的纯度获得。

公开(公告)号：US3882048A

公开(公告)日：1975-05-06

申请号：US32111173

申请日：1973-01-04

Applicant: BAYER AG

Inventor： THELEN HERMANN ,  HALCOUR KURT ,  SCHWERDTEL WULF ,  SWODENK WOLFGANG

IPC: B01J21/04 ,  B01J23/00 ,  B01J23/04 ,  B01J23/648 ,  C07B61/00 ,  C07C67/00 ,  C07C209/00 ,  C07C209/36 ,  C07C211/46 ,  B01J11/12

CPC classification number: B01J23/6482 ,  C07C209/36 ,  Y10S502/524

Abstract: Nitrobenzene is reduced to aniline with hydrogen under elevated temperatures and pressure in the presence of a catalyst containing 0.1 to 10 percent by weight palladium and 0.1 to 5 percent by weight vanadium or a compound of vanadium on an aluminum oxide support wherein at least 20 percent thereof has been converted into lithium-aluminum spinel.

Abstract translation: 在含有0.1至10重量％钯和0.1至5重量％钒的氧化铝载体上的催化剂存在下，在升高的温度和压力下将硝基苯还原为苯胺，其中至少20％ 已经转化为锂铝尖晶石。

公开(公告)号：US3494975A

公开(公告)日：1970-02-10

申请号：US3494975D

申请日：1967-12-29

Applicant: BAYER AG

Inventor： KRONIG WALTER ,  SCHWERDTEL WULF ,  HANS-WALTHER ,  ENGELHARD BRUNO

IPC: C07C1/247 ,  C07C11/18 ,  C07D319/06 ,  C07C1/00 ,  C07C1/20

CPC classification number: C07D319/06 ,  C07C1/247 ,  C07C11/18 ,  C07C2527/173 ,  Y10S585/905

公开(公告)号：US3560586A

公开(公告)日：1971-02-02

申请号：US3560586D

申请日：1969-06-10

Applicant: BAYER AG

Inventor： KRONIG WALTER ,  SCHWERDTEL WULF ,  LOSACKER PAUL ,  WEICHT BODO

IPC: B01J21/16 ,  B01J21/20 ,  B01J27/00 ,  B01J27/18 ,  C07B61/00 ,  C07C1/00 ,  C07C1/247 ,  C07C11/18 ,  C07C67/00 ,  B01J11/82 ,  C07C1/20

CPC classification number: C07C11/18 ,  B01J21/16 ,  B01J21/20 ,  B01J27/1806 ,  C07C1/247 ,  C07C2527/173 ,  Y02P20/584 ,  Y10S585/906

Abstract: 4,4-DIMETHYL-M-DIOXANE IS DECOMPOSED INTO ISOPRENE IN THE GASEOUS PHASE IN A FLUIDIZED BED OVER A CATALYST CONTAINING PHOSPHORIC ACID AND PREPARED BY SUSPENDING A SILICIC ACID FILLER HAVING A SPECIFIC SURFACE OF 30 TO 200 M.2/G. AND A KAOLINITE, MONTMORILLONITE OR ATTAPULGITE CLAY IN AN AQUEOUS STABLE SILICIC ACID SOL HAVING A SPECIFIC SURFACE AREA OF 150 TO 400 M.2/G. (DRY BASIS); ADDING TO THE RESULTING SUSPENSION A SUFFICIENT AMOUNT OF AN AQUEOUS SUSPENSION OF MAGNESIUM OXIDE TO SET THE SUSPENSION INTO BEADS; DRYING THE BEADS; HEATING THE BEADS TO 500 TO 1,000* C. FOR AT LEAST 10 MINUTES; ADDING THERETO 5 TO 30% PHOSPHORIC ACID; AND FURTHER HEATING THEM TO 300 TO 650*C.

公开(公告)号：US3485887A

公开(公告)日：1969-12-23

申请号：US3485887D

申请日：1967-05-29

Applicant: BAYER AG

Inventor： KRONIG WALTER ,  MAYRHOFER WILHELM ,  SCHARFE GERHARD ,  SCHWERDTEL WULF ,  HALCOUR KURT

IPC: B01J23/58 ,  B01J27/13 ,  C07C5/05 ,  C07C7/163 ,  C07C5/16 ,  C07C5/06

CPC classification number: C07C7/163 ,  B01J23/58 ,  B01J27/13 ,  C07C5/05 ,  C07C2521/04 ,  C07C2523/04 ,  C07C2523/06 ,  C07C2523/44 ,  C07C11/08