Messer Griesheim

Fig. 2.7.1. Course of processes in a freezing plant, in which the liquid product is frozen dropwise in LN2 (Cryopel Firma Messer Griesheim GmbH, D-47809 Krefeld).

The exit by disposal of Messer Griesheim to strategic buyers and the partial Celanese IPO in the USA are successes with above-average returns. Recapitalizations due to strong operational cash flows and the availability of debt have also been successful for example, the recapitalization of Cognis has returned more than the money originally invested, although the financial sponsors still own it entirely. 

Apr. 2001 Goldman Sachs/ Allianz Capital Messer Griesheim 2,468 7.4x Yes... 

Polypropylene (PP) foils with a thickness of 100 pm (goodfellow, U.K.) or 300 im (Ciba Geigy Switzerland) as well as polyethylene (PE, Lupolen, BASF) foil (100 pm) were ultrasonically cleaned in a diethyl ether bath for 15 min. The monomers used, i.e. acrylic acid, allyl alcohol and allylamine (all > 99%), were purchased from Merck KGaA, Darmstadt, Germany and distilled before use. The monomers, ethylene and butadiene-1,3, supplied by Messer-Griesheim GmbH, Germany, were used as received. 

Meanwhile less ambitious schemes have materialized. Indeed, in 2000, Linde took over AGA and Messer Griesheim, which was owned initially by Hoechst, now part of Aventis (66.6 percent), and the Messer family (33.3 percent) cut a deal whereby two financial associates, Allianz and Goldman Sachs, will buy from Aventis the shares formerly held by Hoechst. The new landscape offered by these various moves may still change somewhat as the companies just merged will for financial or antitrust reasons have to dispose of assets that should be of great interest to the majors. 

C02 (99.995 %) was purchased from Messer Griesheim GmbH. l,4-Bis-(n-alkylamino)-9,10-anthraquinones were synthesized in our laboratories [7], Chromosorb G-AW was purchased from WGA GmbH and silanized kieselguhr from Merck KGaA. 

C02 (99.5 %) and CC1F3 (99.0 %) were purchased from Messer Griesheim GmbH. p-Carotene (97 % (UV)) was supplied by Fluka GmbH, respectively. 

Commercial dried medicinal plants, leaves of spearmint and rosemary, fruits of dill, leaves and flowering tops of clary sage and flowers of chamomile were used. The CO2 used in this work was 95-96% (w/w) pure and supplied by Messer Griesheim Hungaria. 

The experiments were run in a 200 ml vessel with electrical heating and stirring by a magnetic bar. The pressure was followed by a Digibar. AA and AIBN (both from Merck) were used as received, CCh-SFE-grade was used from Messer Griesheim. For visual experiments a stainless-steel optical cell with movable piston could be used. The reaction conditions were 65°C and 200 bar and the reaction time was about 6h. 

Membrane for Separation of Xenon from Oxygen and Nitrogen and method of Using Same, Messer Griesheim GmbH, Germany. WOOO/33949. Date of publication 15 June 2000. 

Analysis of C3Hg, O2, CO, H2, CO2 and CH4 in gas mixture in the inlet as well as in the outlet of the reactor was performed using a Perkin Elmer gas chromatograph (columns 4 m x 3 mm I.D. 60/80 Poropak Q, and a 2 m x 3 mm I.D. 60/80 Molecular Sieve 5A, both at 150°C). A calibration mixture (Messer-Griesheim) was used as the reference in quantitative analysis of the product samples. The water content in the reaction products was determined by on-line connected Prolabo-hygrometer. 

Synthesis gas (premixed 1 1 mixture of carbon monoxide 2.0 and hydrogen 3.0, Messer Griesheim)... 

K. Water, pyridine (Merck, pro analysi) and hydrogen (Messer Griesheim, 99.999%) were introduced without further purification. 

The reactants (C0,02) and the balance nitrogen (CO 99,997 mol%,02 99,995 mol%, N2 99,999 mol% Messer Griesheim) were fed to the systems from cylinders via leak valves or mass flow controllers. In the vacuum apparatus partial pressures were measined by use of a differentially pumped quadrupole mass spectrometer (QMG311, Balzers). 

Typical pressure vessels, e.g., as provided by the German gas company Messer Griesheim, are 50 1 steel bottles containing 8.9 Nm at a pressure of 20 MPa. For a large-scale consumption ( 250 Nm ), bundles of 28 bottles are used interconnected by high-pressure piping. Compressed natural gas (CNG) storage systems in cars have an experience of more than 3 million vehicle years of use with an excellent safety record [21]. The data base for H2-fueled vehicles is very limited thus far. 

Highly pure (9H-9-BBN)2 has mp 157° (DSC 155°). It is commercially available from jFluka Chemie AG, Buchs, Switzerland or from Aldrich Chemical Co, Milwaukee, WIS 53233. t Hydrogen sulfide (HjS) was purchased from Messer Griesheim, 42(X) Oberhausen, Germany. 

Chromatography grade gases (99.996% He, Ar, Kr, Xe) were purchased from Messer-Griesheim, sorbate paraffins (spectroscopic grade -hexane, n-heptane, -octane, and neopentane) from Fluka these were used without additional purification. 

F. Herzog, J. Busse, S. Terkatz, RefiigeratOTrecychng-howtodeal with CFCs and pentane. Focus on gas 13, Company booklet, Messer Griesheim GmbH, D-47805 Krefeld, Germany. 

Exhaust gas purification, Company booklet, Messer Griesheim GmbH, D-47805 Krefeld, Germany. 

For joining the strings together a number of possibilities existed. These were butt welds, extrusion welds and bolted flange joints. Hoechst and Messer Griesheim who are material suppliers and welding machinery manufacturers respectively, were visited for discussion and demonstration of welding techniques. In the event, it did not prove practical to use... 

Argon (99,998 %), Xenon (99,99 %), Stickstoff (99,99 %) und Kohlenmonoxid (99,97 %) wurden ohne weitere Vorbehandlung verwendet. Schwefelwasserstoff (99,8 %) wurde vor der Verwendung mit Calciumchlorid, Chlor (99,8 %) mit konz. Schwefelsaure ge-trocknet. Alle genannten Gase stammten von der Fa. Messer Griesheim. 

Messer Griesheim GmbH Messer Griesheim GmbH, Hanauer Landstrasse 330, D-6000 Frankfurt 1, Germany Telephone (+49) 69 401900 Fax (+49) 69 40192388 E-mail contact messergroup.com Internet http //www.messergroup.com/... 

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