Exxon Chemical Patents, Inc.

David P Gillingham

Kenneth Lewtas

Robert Dryden Tack

Edwin W Lehmann

John Edward Maddox

Albert Rossi

Kenneth W Bartz

Jacqueline D Bland

Richard Dix Kerwood

Darryl R Smith

Distillate fuel is treated with additives whose structure match the crystal planes of the wax which crystallizes from the fuel to produce crystals below 4000 nanometres in size, suitable additive include novel sulpho-carboxylic materials particularly their esters and amine derivatives such as the amine salts and/or amides of ortho-sulpho benzoic acid.

Chemical compositions and use as fuel additives

A compound of the general formula ##STR1## where X is CONR.sub.2 or CO.sub.2.sup.- + H.sub.2 NR.sub.2

Chemical compositions and their use as fuel additives

A liquid hydrocarbon particularly fuel oil containing an amine-salt having the formula ##STR1## wherein R, R.sup.1 and R.sup.2 are hydrogen or a hydrogen - and carbon-containing group;

Fuel oil additives

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Swindon, United Kingdom

David P Gillingham