Basf Se Corporation

Basf Aktiengesellschaft

Kolon Plastics, Inc.

Manfred Heilig

Eckhard Stroefer

Torsten Mattke

Carsten Knoesche

Stefan Maixner

Andreas Woelfert

Kai Thiele

Filip Nevejans

Marvin Kramp

JongMoon Kim

Thomas Schulz

In Gi Cho

HyunSoo Chang

Johann-Peter Melder

Michael Keil

Thomas Daniel

Klaus Joachim Mueller-Engel

Uwe Josef Vogelbacher

Otto Machhammer

Horst Wingert

Norbert G&ouml;tz

Ralf Klintz

Armin Stamm

Stefan Rittinger

Heinz-Josef Kneuper

Joachim Pfeffinger

Theodor Weber

Frank Wetterich

Hans-Juergen Pallasch

Andreas Wölfert

Martin Sesing

Daniel Pfeiffer

Josef Wahl

Joerg Pastre

Frank Huetten

Eva Koch

Markus Ottenbacher

Hans-Peter Schildberg

Carsten Knösche

Hans-Martin Polka

Stefanie Herzog

Peter Dransfeld

Oliver Bussmann

Gregor Daun

Jongmoon Kim

Hyunsoo Chang

The present invention relates to a process for preparing dioxolane by reacting ethylene glycol with an aqueous solution of formaldehyde in the presence of an acid catalyst. The raw product comprising water, dioxolane and methanol is fed to a phase separation unit () wherein an organic extracting agent is present. An organic fraction stream from the phase separation unit is transferred to an upper part of a purification column () from which dioxolane is withdrawn as a bottom product while the distillate stream of the purification column is recycled to the phase separation unit. An aqueous fraction stream from the phase separation unit is transferred to a waste water column (), withdrawing a waste water stream from the bottom of the waste water column, withdrawing a side stream () from a stage between the feed stage and the reflux stage of the waste water column and recycling this stream () to the phase separation unit, and withdrawing a distillate stream () containing methanol from the waste water column.

Process for preparing dioxolane

The present invention relates to a process for preparing dioxolane by reacting ethylene glycol with an aqueous solution of formaldehyde in the presence of an acid catalyst. The raw product comprising water, dioxolane and methanol is fed to a phase separation unit () wherein an organic extracting agent is present. An organic fraction stream from the phase separation unit is transferred to an upper part of a purification column () from which dioxolane is withdrawn as a bottom product while the distillate stream of the purification column is recycled to the phase separation unit. An aqueous fraction stream from the phase separation unit is transferred to a waste water column (), withdrawing a waste water stream from the bottom of the waste water column, recycling a distillate stream () from the waste water column to the phase separation unit, and withdrawing a side stream () containing methanol from a stage below the feed stage of the waste water column.

A process for the continuous distillative separation of mixtures comprising morpholine (MO), monoaminodiglycol (ADG), ammonia, water and methoxyethanol (MOE), obtained by reacting diethylene glycol (DEG) with ammonia, wherein ammonia, water, ADG and DEG are removed by distillation and the resulting stream comprising MO and MOE is supplied to a distillation column Kin which at a top pressure of from 20 to 2000 mbar MO, MOE and organic products having a boiling point 128&#xb0; C. (1.013 bar) are removed via the bottom and organic products having a boiling point 128&#xb0; C. are removed overhead, and also MO is removed via a side draw, where Kis equipped with an evaporator for heating the bottoms, into which is fed heating vapor having a pressure of from 1 to 10 bar.

Method for the continuous separation by distillation of mixtures that contain morpholine (MO), monoaminodiglycol (ADG), ammonia, water and methoxyethanol (MOE)

The invention relates to a process for preparing isocyanates by reacting primary amines with phosgene in a solvent, where the solvent comprises a dialkyl carbonate.

Process for preparing isocyanates in dialkyl carbonates as solvent

An aqueous solution comprising acrylic acid and the conjugate base thereof in a total amount of at least 10% by weight, based on the weight of the aqueous solution, and propionic acid and the conjugate base thereof, formic acid and the conjugate base thereof, acetic acid and the conjugate base thereof, benzoic acid and the conjugate base thereof, maleic anhydride, maleic acid and the conjugate bases thereof, phthalic anhydride, phthalic acid and the conjugate bases thereof, acrolein, benzaldehyde, 2-furaldehyde, and at least 20 mol % of at least one alkali metal cation;

Aqueous solution comprising acrylic acid and the conjugate base thereof

The present invention relates to a process for preparing diisocyanates from diamines and phosgene in the gas phase.

Method for producing diisocyanates

The invention relates to a process for separating hydrogen chloride and phosgene, which comprises bringing a mixture of hydrogen chloride and phosgene into contact with an ionic liquid in which at least part of the hydrogen chloride is dissolved in a step a) and then separating off the hydrogen chloride dissolved in the ionic liquid in a step b).

Method for separating hydrogen chloride and phosgene

A method is provided for the intrinsically safe handling of 3-chloropropyne in the presence of a diluent with a boiling point ranging from &#x2212;50&#xb0; C. (223 K) to 200&#xb0; C. (473 K) under atmospheric pressure, wherein the concentration of 3-chloropropyne in the liquid phase and in the gas phase is kept below the concentrations capable of deflagration by means of the type and amount of the diluent, the temperature and the total system pressure, together with the use of a 3-chloropropyne prepared, stored or transported in this way in the synthesis of dyestuffs, pharmaceutical and agricultural active ingredients, electroplating auxiliaries, disinfectants, steroids and growth hormones.

Method for the intrinsically safe handling of 3-chloropropyne

The invention relates to a method for producing N-acylated (hetero)aromatic hydroxylamine derivatives of formula (I), wherein the substituents, the ring atom and the index have the meanings give in the Description, by hydrogenating a (hetero)aromatic nitro-compound of general formula (II) in the presence of a hydrogenation catalyst.

Method for producing (hetero)aromatic hydroxylamines

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Speyer, Germany

Manfred Heilig