Basf Se Corporation

Patrick Deck

Oliver Huttenloch

Michael Bock

Heiner Schelling

Holger Ganz

Wolfgang Körnig

Michael Mauβ

Oliver Bey

Alexander Wissemeier

Florian Garlichs

Ralf-Thomas Rahn

Wolfram Zerulla

Gregor Pasda

Markus Siegert

Wolfgang Weigelt

Michael Mauss

Michael Mauß

A process for the removal of acids from reaction mixtures, comprising at least one product of value which is sparingly soluble in water, by at least one unpolar amine as an auxiliary base, which includes: a) reacting the auxiliary base with the acid with formation of a salt; b) reacting the salt formed in step a) with a further base which accepts the acid with liberation of the auxiliary base and combines with the acid to be accepted from the auxiliary base to form a salt which is very readily soluble in water; c) extraction of the mixture obtained in step b) with water or an aqueous medium, wherein the salt of the further base dissolves in the aqueous phase and the product of value, or the solution of the product of value, in a suitable solvent and the auxiliary base form at least one separate nonaqueous phase; and d) removal by distillation of at least part of any solvent present from the at least one nonaqueous phase obtained in step c), to form two nonmiscible liquid phases.

Method of separating acids from chemical reaction mixtures by means of apolar amines

Processes for preparing 4-chlorobenzenesulfonic acid from 2-chlorobenzenesulfonic acid and/or 3-chlorobenzenesulfonic acid, which processes include the conversion of 2-chlorobenzenesulfonic acid and/or 3-chlorobenzenesulfonic acid to 4-chlorobenzenesulfonic acid in the presence of sulfuric acid at a temperature of 100 to 300&#xb0; C.; as well as processes for preparing 4,4'-dichlorodiphenyl sulfone, which include such described processes for preparing 4-chlorobenzenesulfonic acid.

Processes for preparing 4-chlorobenzenesulfonic acid and 4,4'-dichlorodiphenyl sulfone

The invention relates to a process for the preparation of triamides from ammonia and amido-dichlorides.

Process for the preparation of triamides from ammonia and amido-dichlorides

The invention relates to preparations with improved urease-inhibitory effect which comprise at least two different (thio)phosphoric triamides and to urea-comprising fertilizers which comprise these preparations. The invention furthermore relates to a method of preparing these preparations, to the use of these preparations in the fertilization with urea-comprising fertilizers, and to the use of urea-comprising fertilizers which comprise these preparations in agriculture or in horticulture.

Preparations with improved urease-inhibiting effect and urea-containing fertilizers containing the latter

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Mannheim, Germany

Patrick Deck