Lonza Inc.

Christian Schnider

Stefan Tille

Andreas Klein

Michael Bittel

Thomas Gruetzner

Anna-Christina Hormes

Dominique Roberge

Christoph Taeschler

Michael Gottsponer

Michael Bersier

Gesa Paradies

Philipp Studer

Ulrich Mayerhoeffer

Claudio Arnold

Christophe Girard

Rolf Kalbermatten

Stefan Garms

Manuel Favre

Guy Raboud

Kilian Schnydrig

Martin Venetz

Thomas Eggel

Janine Leiggener

Thomas Riedel

The invention relates to a method for the preparation of bis(fluorosulfonyl)-imide and its derivatives at elevated temperature.

Method for preparation of bis(fluorosulfonyl)-imide

The invention discloses a method for the continuous preparation of n-butyl nitrite with a low content of n-butanol comprising the reaction of n-butanol, an acid and NaNOin a continuous way, in which the n-butanol, an acid and NaNOare mixed in a mixing device which provides for a pressure drop of at least 1 bar; the acid is selected from the group consisting of HCI, HSO, formic acid, methanesulfonic acid, and mixtures thereof; and the amount of HCI is at least 1.02 molar equivalent based on the molar amount of n-butanol.

Method for preparation of n-butyl nitrite

The invention relates to a method for the preparation of imidodisulfuryl compounds in a continuous reaction at elevated temperatures.

Method for preparation of imidodisulfuryl compounds

Organic dithiopyrophosphates of formula wherein R, R, R, Rand Rindependently are hydrogen, Calkyl, chloromethyl or bromomethyl, are prepared in a two-step process from the corresponding 1,3-diols and thiophosphoryl chloride, using 3-methylpyridine both as solvent and as base. 

Process for he production of organic dithiopyrophosphates

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Visp, Switzerland

Christian Schnider