公开(公告)号：EP1485342B1

公开(公告)日：2011-05-18

申请号：EP03711919.5

申请日：2003-03-04

Applicant: BASF SE

Inventor： SCHRÖDER, Jürgen ,  MÜLLER-ENGEL, Klaus, Joachim ,  SCHLIEPHAKE, Volker ,  HAMMON, Ulrich ,  DIEHL, Volker ,  JÄGER, Ulrich

IPC: C07C67/54 ,  C07C51/44 ,  C07C51/46 ,  C07C69/54 ,  C07C57/07

CPC classification number: B08B9/08 ,  C07C51/44 ,  C07C57/04

Abstract: Disclosed is a method for cleaning plate columns used for rectifying liquids containing (meth)acrylic compounds, according to which a basic liquid is transported from the top to the bottom of the plate column and a gas is fed through the column countercurrent to the basic liquid, the average differential pressure of the gas phase being at least 0.5 mbar/plate above all plates.

公开(公告)号：EP2178926A1

公开(公告)日：2010-04-28

申请号：EP08787056.4

申请日：2008-08-08

Applicant: BASF SE

Inventor： FUNK, Rüdiger ,  HEIDE, Wilfried ,  WEISMANTEL, Matthias ,  HAMMON, Ulrich ,  BENNET, Andrea Karen

IPC: C08F2/00 ,  C08F20/06

CPC classification number: C08F220/06

Abstract: The invention relates to a method for producing water-absorbent resins, wherein a) acrylic acid is produced at an acrylic acid production site, b) the produced acrylic acid is dissolved in water at the acrylic acid production site, thus an aqueous acrylic acid solution is obtained, c) the acrylic acid solution is fed into a pipeline at the acrylic acid production site and is transported through the pipeline to an acrylic acid processing site d) the aqueous acrylic acid solution undergoes a radical polymerization at the acrylic acid processing site. Said method guarantees a save transport of the highly reactive acrylic acid. A threat caused by early polymerization, as with pure acrylic acid, is not possible, as the acrylic acid is 'diluted' due to the aqueous solvent and the specific thermal capacity or the evaporation enthalpy of the water limit the maximum temperature increase. The amount of polymerization inhibitors can be reduced or no polymerization inhibitors have to be used at all. Temperature control of containers, pipe conduits and pipelines, carrying the aqueous acrylic acid solution is not necessary, as the solidification point of the aqueous acrylic acid solution is lower than the one of the anhydrous acrylic acid.

公开(公告)号：EP2150518A2

公开(公告)日：2010-02-10

申请号：EP08736369.3

申请日：2008-04-18

Applicant: BASF SE

Inventor： HAMMON, Ulrich ,  FRIESE, Thorsten ,  PETZOLDT, Jochen ,  MÜLLER-ENGEL, Klaus Joachim ,  CREMER, Ulrich ,  RAICHLE, Andreas

IPC: C07C51/25 ,  C07C57/055

CPC classification number: B01J8/067 ,  B01J23/002 ,  B01J23/8885 ,  B01J27/199 ,  B01J35/0006 ,  B01J2208/00212 ,  B01J2208/00221 ,  B01J2208/00513 ,  B01J2208/025 ,  B01J2219/30207 ,  B01J2219/30215 ,  B01J2523/00 ,  C07C51/235 ,  C07C57/04 ,  B01J2523/13 ,  B01J2523/41 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/69 ,  B01J2523/842 ,  B01J2523/845 ,  B01J2523/17 ,  B01J2523/55 ,  B01J2523/15 ,  B01J2523/51 ,  B01J2523/53 ,  B01J2523/62

Abstract: The invention relates to a method for starting a heterogeneously catalyzed partial gas phase oxidation of acrolein into acrylic acid or of methacrolein into methacrylic acid at a fixed catalyst bed that is located in a shell-and-tube reactor cooled with a heat exchanger means, wherein the temperature of the heat exchanger means is ≥ 290°C, and wherein the temperature of the reactor bottom surface facing the reactor gas inlet mixture and the temperature of the reaction gas inlet mixture are ≤ 285°C.

Abstract translation: 本发明涉及在固定催化剂床上开始将丙烯醛非均相催化部分气相氧化成丙烯酸或甲基丙烯醛成甲基丙烯酸的方法，该固定催化剂床位于用热交换器装置冷却的壳管式反应器中，其中 热交换器装置的温度≥290℃，并且其中面向反应器气体入口混合物的反应器底表面的温度和反应气体入口混合物的温度≤255℃。

公开(公告)号：EP2139842A1

公开(公告)日：2010-01-06

申请号：EP08735454.4

申请日：2008-03-20

Applicant: BASF SE

Inventor： FUNK, Rüdiger ,  HEIDE, Wilfried ,  WEISMANTEL, Matthias ,  HAMMON, Ulrich ,  BENNETT, Andrea, Karen

IPC: C07C57/075 ,  C07C57/04

CPC classification number: C07C51/412 ,  C07C51/50 ,  C07C57/04

Abstract: The invention relates to a method for the transportation of a monomer composition in which a composition comprising an aqueous solution of partially or entirely neutralized acrylic acid or overneutralized acrylic acid is placed in a transport means or sent through a pipe. The method according to the invention is characterized in that it has an increased level of safety during the transportation of acrylic acid monomers, an improved quality of the resulting product, and a high degree of efficiency. The method ensures safe transport of the highly reactive acrylic acid. The amount of polymerization inhibitors added to said acrylic acid may be reduced. An additional advantage is the minimization of the formation of dimeric acrylic acid. Tempering of containers, pipes, and pipelines may be omitted.

公开(公告)号：EP2129650A1

公开(公告)日：2009-12-09

申请号：EP08717908.1

申请日：2008-03-17

Applicant: BASF SE

Inventor： HEILEK, Jörg ,  HAMMON, Ulrich ,  SCHLIEPHAKE, Volker ,  MÜLLER-ENGEL, Klaus Joachim ,  BLUM, Till

IPC: C07C51/50 ,  C07C51/47 ,  C07C51/42 ,  C07C57/04 ,  C07C45/78 ,  C07C45/79 ,  C07C45/86 ,  C07C47/22 ,  C07C67/48 ,  C07C67/56 ,  C07C67/62 ,  C07C69/54

CPC classification number: C07C67/48 ,  C07C45/79 ,  C07C51/42 ,  C07C51/47 ,  C07C51/50 ,  C07C67/56 ,  Y10T137/0391 ,  Y10T137/6579 ,  C07C57/04 ,  C07C69/54 ,  C07C47/22

Abstract: The invention relates to a method for storing a monomer phase that is liquid under storage conditions, contains up to ≥ 95 % by weight methacryl monomers and that is created by condensation from a gaseous phase or by the dissolution of a crystalline phase, in a storage container. According to said method, polymer contained in dissolved form in the liquid monomer phase is isolated from the monomer during the creation of said phase in the storage container. The invention also relates to a method for removing the liquid monomer phase from the storage container, according to which polymer contained in dissolved form in the monomer phase is likewise isolated from the monomer.

公开(公告)号：EP2066430A1

公开(公告)日：2009-06-10

申请号：EP07803519.3

申请日：2007-09-17

Applicant: BASF SE

Inventor： BLECHSCHMITT, Michael ,  HAMMON, Ulrich ,  MARTIN, Friedrich-Georg ,  MÜLLER-ENGEL, Klaus Joachim ,  ZEHNER, Peter

IPC: B01F3/08 ,  B01F5/02 ,  B01F5/10 ,  B01J19/24 ,  B01J19/26 ,  F04F5/10 ,  B01F1/00

CPC classification number: B01F5/0206 ,  B01F5/0212 ,  B01F5/10 ,  B01F13/0222 ,  B01F13/0283 ,  B01F2003/0028 ,  F04F5/10 ,  F04F5/463

Abstract: The invention relates to a method and a device for mixing a liquid in a substantially sealed container or a mixture of a liquid and a fine-particle solid, said liquid or mixture only partially filling the internal volume of the container that can be occupied by a fluidic phase and the remaining available internal volume of the container being filled by a gaseous phase. According to the invention, the essentially same liquid or mixture is fed to the container in the form of a propelled stream of a suction device that is situated in the liquid or mixture in the container. In its simplest form, the method according to the invention is implemented by means of an ejector (i.e. according to water jet pump principles) embodied as the suction device. The propelled stream is pumped through a propelling nozzle, which is fitted into the ejector in such a way that gas is sucked from the gaseous phase during the passage of the stream through the nozzle, e.g. by means of a riser tube that projects into the gaseous phase of the container, and is released in the form of dispersed gas bubbles, together with the propelled stream, into the liquid content of the storage container.

公开(公告)号：EP1915405A2

公开(公告)日：2008-04-30

申请号：EP06778142.7

申请日：2006-08-03

Applicant: BASF SE

Inventor： HAMMON, Ulrich ,  MÜLLER-ENGEL, Klaus Joachim ,  JÄGER, Ulrich

IPC: C08F20/06

CPC classification number: C08F220/06

公开(公告)号：EP4355473A1

公开(公告)日：2024-04-24

申请号：EP22730506.7

申请日：2022-05-25

Applicant: BASF SE

Inventor： HAMMON, Ulrich ,  RAITH, Christian ,  BASSLER, Hans-Juergen

IPC: B01J19/00 ,  B01J19/24 ,  C07C51/25 ,  B01J8/06

CPC classification number: B01J19/0013 ,  B01J19/002 ,  B01J19/2445 ,  B01J2219/0003620130101 ,  B01J2219/0024720130101 ,  B01J2219/240120130101 ,  C07C51/252 ,  B01J8/067 ,  B01J2208/0025620130101 ,  B01J2208/0071620130101 ,  B01J2208/0076920130101

公开(公告)号：EP4240969A1

公开(公告)日：2023-09-13

申请号：EP21801559.2

申请日：2021-11-02

Applicant: BASF SE

Inventor： GIESHOFF, Tile ,  SCHROEDER, Juergen ,  HAMMON, Ulrich ,  REIN, Christian

IPC: F04B17/03 ,  F04D13/02 ,  F04D13/06

公开(公告)号：EP4237145A1

公开(公告)日：2023-09-06

申请号：EP21791414.2

申请日：2021-10-20

Applicant: BASF SE

Inventor： PARISHAN, Samira ,  AMAKAWA, Kazuhiko ,  HAMMON, Ulrich ,  WALSDORFF, Christian ,  NESELI, Necip ,  MUEHL, Markus

IPC: B01J35/02 ,  B01J35/10 ,  B01J37/02 ,  C07C51/25