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US 6,555,688 B1Granted
Method for the production of triethylene diamine making use of ethylene diamine
AssigneeBASF SE
InventorsWerner Klockemann, Erich Frauendorfer, Matthias Frauenkron, Bernd Stein
Life of this patent
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Abstract
The invention in question is concerned with a method for the production of triethylene diamine using ethylene diamine as an educt and zeolite catalysts of the Pentasil type.
Claims14
A method for the production of triethylene diamine from ethylene diamine with use of zeolite catalysts, wherein
- the educt flow in continuous operation contains 5 to 80% by weight of ethylene diamine,
- the zeolite catalysts are zeolite catalysts of the Pentasil type with Si:Al atom ratios of 150:1 to 700:1, and are present or are used at least partially in the H+ and/or NH4+ form,
- the educt flow comprises water in a content of 2 to 60% by weight and the reaction temperature is between 290 and 400° C.
Dependencies are inferred from the claim text.