Quaternary ammonium salts

Halogen- and sulphur-free quaternary ammonium salts of carboxylic acids, useful as cold flow additives in middle distillate fuels, are made by reacting, in the presence of an acid catalyst: (A) a halogen- and sulphur-free tertiary amine that carries at least one alkyl group containing 8 to 40 carbon...

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Bibliographische Detailangaben
1. Verfasser:	TACK, ROBERT DRYDEN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR LIQUEFIED PETROLEUM GAS LUBRICANTS METALLURGY NATURAL GAS ORGANIC CHEMISTRY PEAT PETROLEUM, GAS OR COKE INDUSTRIES SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Beschreibung
Zusammenfassung:	Halogen- and sulphur-free quaternary ammonium salts of carboxylic acids, useful as cold flow additives in middle distillate fuels, are made by reacting, in the presence of an acid catalyst: (A) a halogen- and sulphur-free tertiary amine that carries at least one alkyl group containing 8 to 40 carbon atoms; and (B) a halogen- and sulphur-free C 1 to C 4 alkyl ester of a carboxylic acid that has a pK a of 3.5 or less.