Akzo Nobel Chemicals International B.v.

Nouryon Chemicals International B.v.

Henrik Nordberg

Anders Klingberg

Jan Olof Gustafsson

Natalija Smolko-Schvarzmayr

Elisabeth Henriksson

Kelly Ivone Pina Albino

Magnus Svensson

John André Janiak

Odair Alves De Lima

Mikael Ivar Widell

John Andre Janiak

ÅSa Hele'n Jeanette Kleberger HELLSTRÖM

Mikhail Golets

The present invention relates to a collector composition containing 80 to 100 wt % of at least one alkylethermonoamine, less than 20 wt % alkyletherdiamine, all wt % based on total weight of all amine components, and wherein the alkylethermonoamine contains between 60 and 93% isotridecyl(C13)etherpropylamine, 5 and 30% of isododecyl(C12)etherpropylamine, 0 and 10% of isoundecyl(C11)-etherpropylamine, 0 and 10% of isodecyl(C10)etherpropylamine, 2 and 10% tetradecyl(C14) etherpropylamine, all % being based on total weight of alkylethermonoamine and the use thereof in a process to treat iron ore.

Process to treat magnetite ore and collector composition

The present invention relates to the use of branched fatty alcohol-based compounds selected from the group of fatty alcohols with 12-16 carbon atoms having a degree of branching of 1-3, and their alkoxylates with a degree of ethoxylation of up to 3, as secondary collectors for the froth flotation of non-sulfidic ores, in combination with a primary collector selected from the group of amphoteric and anionic surface active compounds.

Use of branched alcohols and alkoxylates thereof as secondary collectors

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Stenungsund, Sweden

Henrik Nordberg