Clariant Produkte (Deutschland) Gmbh

Clariant Produkte Gmbh

Heidi Rausch

Matthias Krull

Michael Feustel

Dirk Leinweber

Elisabeth Wasmund

Carsten Cohrs

Franz-Xaver Scherl

The present invention relates to alkylphenol-aldehyde resins containing oligo- or polymers having a repeat structural unit of the formula where

Additives for improving the cold flowability and lubricity of fuel oils

The invention thus provides crude oils and products which have been produced therefrom and comprise distillation residues, comprising at least one alkylphenol-aldehyde resin having a repeat structural unit of the formula where

Additives for crude oils

The invention relates to the use of alkoxylated crosslinked polyglycerols for demulsifying oil/water emulsions in amounts of from 0.0001 to 5% by weight, based on the oil content of the emulsion to be demulsified. The alkoxylated crosslinked polyglycerols of the invention is crosslinked with multifunctional electrophilic compounds having a molecular weight of from 1000 to 100 000 units and which comprise 5 to 100 glycerol units which are alkoxylated with C-C-alkylene oxide groups or a mixture of such alkylene oxide groups so that the crosslinked alkoxylated polyglycerols have a degree of alkoxylation of from 1 to 100 alkylene oxide units per free OH group.

Alkoxylated, cross-linked polyglycerols and use thereof as biodegradable demulsifier

Disclosed is the use of alkoxylated dendrimers for breaking oil/water emulsions. The alkoxylated dendrimers have a molecular weight of from 2400 to 100 000 g/mol and have been alkoxylated with C-C-alkylene oxide groups or a mixture of such alkylene oxide groups such that the alkoxylated dendrimer has a degree of alkoxylation of from 1 to 100 alkylene oxide units per free OH group. The alkoxylated dendrimers are added to the oil/water emulsions in amounts of from 0.0001 to 5% by weight, based on the oil content of the emulsion to be demulsified.

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Garching/Alz, Germany

Heidi Rausch