公开(公告)号：EP2935200B1

公开(公告)日：2016-08-24

申请号：EP13802958.2

申请日：2013-12-10

Applicant: BASF SE ,  Shanghai Basf Polyurethane Company Ltd.

Inventor： DAI, Yuanshen ,  LI, Da Peng ,  JIA, Pei Shi ,  CAI, Zhan ,  NETO, Samuel

IPC: C07C201/16 ,  C07C201/08

CPC classification number: C07C201/08 ,  B01D17/0217 ,  C07C201/16 ,  C07C205/06

公开(公告)号：EP2812308B1

公开(公告)日：2016-04-20

申请号：EP13702651.4

申请日：2013-02-07

Applicant: BASF SE

Inventor： RAICHLE, Andreas ,  HAASE, Stefanie ,  BRAUNSBERG, Holgar ,  BÜTTNER, Johannes ,  PENZEL, Ulrich ,  NETO, Samuel

IPC: C07C209/36

CPC classification number: C07C209/36 ,  C07C211/47

公开(公告)号：EP2906528A1

公开(公告)日：2015-08-19

申请号：EP13774667.3

申请日：2013-10-10

Applicant: BASF SE

Inventor： VANDEWALLE, Koenraad ,  VERCRUYSSE, Karen ,  DENISSEN, Leo ,  DEBERDT, Filip ,  DE WINNE, Hendrik ,  VAN DE VOORDE, Bart ,  REISER, Michael ,  NETO, Samuel

IPC: C07C209/84 ,  C07C211/46

CPC classification number: C07C209/84 ,  C07C211/46

Abstract: The invention relates to a method for obtaining pure aniline by catalytically hydrogenating nitrobenzene and reprocessing the reaction mixture obtained therefrom, having the following method steps: - the catalytic hydrogenation of nitrobenzene; - optionally the partial condensation of the reaction mixture of the catalytic hydrogenation in one or more stages; - the separation of the reaction mixture obtained after the catalytic hydrogenation or the condensation, which is optionally carried out, into a gas phase, which contains hydrogen, and a liquid phase; - the liquid-liquid phase separation of the liquid phase obtained in the separation step, thereby obtaining an aqueous phase, which is further reprocessed or discharged, and raw analine as an organic phase, said raw analine containing 90-95 wt.% aniline, 4-9 wt.% water, and residual high boilers relative to the analine, in each case based on the total weight of the raw analine, and the sum of the components of the raw analine equaling 100 wt.%; and - the pre-cleaning of the raw analine by partly or completely separating the water via the head stream of a first distillation column, thereby obtaining a bottom stream that is fed as a feed stream to a purification column from which a pure aniline stream containing at least 99.9 wt.% aniline based on the total weight of the pure analine stream is drawn via the head and a bottom stream containing high boilers is drawn and fed to a combustion process. The invention is characterized in that the weight ratio of the bottom stream from the purification column is limited to maximally 0.8% relative to the weight of the feed stream, thereby ensuring that said bottom stream can be pumped under the effect of a corresponding trace heating of the lines provided for this purpose, said trace heating ensuring that the temperature of the stream conducted in the lines is 45 °C or higher, wherein the bottom stream is exposed to methanol, ethanol, propanol, acetone, or mixtures thereof in a weight ratio of 5-30% based on the weight of the bottom stream.

公开(公告)号：EP2603461A1

公开(公告)日：2013-06-19

申请号：EP11741590.1

申请日：2011-08-11

Applicant: BASF SE

Inventor： LESCHINSKI, Julia ,  DENISSEN, Leo ,  HECK, Ludwig E. ,  GAMMER, Peter ,  VAN DE VOORDE, Bart ,  HEUßLER, Andreas ,  NETO, Samuel

IPC: C02F1/04 ,  C02F1/20 ,  C02F1/02 ,  C02F9/00 ,  B01D11/04 ,  B01D3/38 ,  C02F1/72 ,  C02F3/00 ,  C07C201/16 ,  C02F1/78 ,  C02F101/38 ,  C02F103/36

CPC classification number: C02F1/04 ,  C02F1/025 ,  C02F1/20 ,  C02F1/72 ,  C02F1/78 ,  C02F3/00 ,  C02F9/00 ,  C02F2101/38 ,  C02F2103/36 ,  C02F2209/02 ,  C02F2209/03 ,  C02F2209/06 ,  C02F2209/14

Abstract: The invention relates to a method for reclaiming wastewaters which are obtained in the treatment of crude aromatic nitro compounds after the nitration of aromatic compounds, comprising the following steps: (a) single-stage or multistage washing of the crude aromatic nitro compound to obtain at least one organic phase and at least one aqueous phase, and separating off the aqueous phase or aqueous phases, wherein step (a) comprises the addition of a base which is different from ammonia, and then (b) optionally removing organic components from at least some of the aqueous phase or aqueous phases obtained in step (a) by stripping, preferably using steam, then (c) removing, by thermal and/or oxidative breakdown, organic compounds from at least some of the aqueous phase or aqueous phases resulting from step (a) or step (b), then (d) stripping, by distillation, of ammonia from at least some of the aqueous phase or aqueous phases resulting from step (c), and then (e) optionally feeding at least some of the aqueous phase or aqueous phases resulting from step (d) to a biological wastewater treatment.

公开(公告)号：EP1968743B1

公开(公告)日：2011-03-23

申请号：EP06830762.8

申请日：2006-12-20

Applicant: BASF SE

Inventor： NETO, Samuel ,  HIBST, Hartmut ,  ROSOWSKI, Frank ,  STORCK, Sebastian ,  ZÜHLKE, Jürgen

IPC: B01J23/68 ,  C07C51/265 ,  C07C51/31 ,  B01J37/08 ,  B01J37/02 ,  B01J35/00

CPC classification number: B01J23/682 ,  B01J23/002 ,  B01J23/96 ,  B01J27/198 ,  B01J35/0006 ,  B01J35/002 ,  B01J37/0018 ,  B01J37/0219 ,  B01J37/0223 ,  B01J37/08 ,  B01J2523/00 ,  C01G31/006 ,  C01P2002/72 ,  C01P2006/12 ,  C07C51/265 ,  C07C51/313 ,  Y02P20/584 ,  C07C63/16 ,  B01J2523/18 ,  B01J2523/3712 ,  B01J2523/55

Abstract: The invention relates to a method for converting a precatalyst which comprises a inert carrier, an organic carbon source and a silver and vanadium containing multimetal oxide to a gas phase oxidation catalyst comprising the inert carrier and a catalytically active silver-vanadium oxide bronze. According to said method, the precatalyst is thermally treated at a temperature of at least 350 °C in a gas atmosphere containing less than 10 % by volume of oxygen. Before the treatment, the carbon source quantity in the precatalyst is adjusted to a value below the critical quantity. The carbon quantity is reduced by separation at a temperature of 80 to 200 °C in an oxygen-containing atmosphere and concurrent decomposition of a portion of the carbon source. The catalysts so obtained are used for partial gas phase oxidation of aromatic hydrocarbons to aldehydes, carboxylic acids and/or carboxylic acid anhydrides.

公开(公告)号：EP1968743A1

公开(公告)日：2008-09-17

申请号：EP06830762.8

申请日：2006-12-20

Applicant: BASF SE

Inventor： NETO, Samuel ,  HIBST, Hartmut ,  ROSOWSKI, Frank ,  STORCK, Sebastian ,  ZÜHLKE, Jürgen

IPC: B01J23/68 ,  C07C51/265 ,  C07C51/31 ,  B01J37/08 ,  B01J37/02 ,  B01J35/00

CPC classification number: B01J23/682 ,  B01J23/002 ,  B01J23/96 ,  B01J27/198 ,  B01J35/0006 ,  B01J35/002 ,  B01J37/0018 ,  B01J37/0219 ,  B01J37/0223 ,  B01J37/08 ,  B01J2523/00 ,  C01G31/006 ,  C01P2002/72 ,  C01P2006/12 ,  C07C51/265 ,  C07C51/313 ,  Y02P20/584 ,  C07C63/16 ,  B01J2523/18 ,  B01J2523/3712 ,  B01J2523/55

Abstract: The invention relates to a method for converting a precatalyst which comprises a inert carrier, an organic carbon source and a silver and vanadium containing multimetal oxide to a gas phase oxidation catalyst comprising the inert carrier and a catalytically active silver-vanadium oxide bronze. According to said method, the precatalyst is thermally treated at a temperature of at least 350 °C in a gas atmosphere containing less than 10 % by volume of oxygen. Before the treatment, the carbon source quantity in the precatalyst is adjusted to a value below the critical quantity. The carbon quantity is reduced by separation at a temperature of 80 to 200 °C in an oxygen-containing atmosphere and concurrent decomposition of a portion of the carbon source. The catalysts so obtained are used for partial gas phase oxidation of aromatic hydrocarbons to aldehydes, carboxylic acids and/or carboxylic acid anhydrides.