Clariant Finance (bvi) Limited

Clariant International Ltd

Clarient Finance (bvi) Limited

Klaus-Ulrich Pedain

Tobias Rau

Uwe Dahlmann

Gunter Lipowsky

Jesús Pitarch López

Gemma Solduga Ramirez

Matthias Arndt

Jacques Collin Bezuidenhout

Pia Mueller

Yves Schunk

Jozef Kochan

Michael Patzke

Jesus Pitarch Lopez

The invention relates to esterquats which can be obtained by reacting di- or trialkanolamines with a mixture of fatty acids and polycarboxylic acids, and the esters obtained in this manner are then quaternized with an alkylating agent, wherein the di- or trialkanolamines correspond to formula (I), in which R1 and R2 independently of one another represent hydroxyalkyl groups with 1 to 20 carbon atoms, hydroxyalkenyl groups with 2 to 20 carbon atoms and 1, 2, or 3 double bonds, or addition products of 1 to 20 mol ethylene oxide on a hydroxyethyl group and R3 represents hydrogen, an alkyl group with 1 to 20 carbon atoms, an alkenyl group with 2 to 20 carbon atoms and 1, 2, or 3 double bonds, a hydroxyalkyl group with 1 to 20 carbon atoms, a hydroxyalkenyl group with 2 to 20 carbon atoms and 1, 2, or 3 double bonds, or addition products of 1 to 20 mol ethylene oxide on a hydroxyethyl group; the fatty acids correspond to formula (II),R&#x2014;COOH&#x2003;&#x2003;(II)in which R4 represents an aliphatic, linear, or branched hydrocarbon group with 5 to 29 carbon atoms and 0, 1, 2, or 3 double bonds; and the polycarboxylic acids correspond to formula (III), in which Y represents a carbon atom or a saturated or unsaturated aliphatic hydrocarbon group with 2 to 5 carbon atoms, said group optionally having one or more hydroxyl groups, and X represents hydrogen or a hydroxy- or carboxylic acid group. The invention also relates to the use of said esterquats as collectors for the flotation of non-sulfidic minerals.

Esterquats for the flotation of non-sulfidic minerals and ores, and method

This invention relates to a collector composition for the direct froth flotation of nonsulfide ores comprising 

Composition of fatty acids and N-acyl derivatives of sarcosine for the improved flotation of nonsulfide minerals

The invention relates to the use of a composition of A) at least one quaternary ammonia compound comprising at least one organic radical bonded to the ammonia nitrogen atom and optionally comprising heteroatoms and having 1 to 36 carbon atoms, and B) at least one amine alkoxylate ester of formula (1) or a salt thereof, where A, B are, independently of each other, a C- through C-alkylene radical R, a C- through C-alkyl radical or alkenyl radical R, R, Rindependent of each other, H, or a C- through C-acyl radical, with the stipulation that at least one of the radicals R, Ror Rstands for a C- through C-acyl radical, and x, y, z, independently of each other, stand for a whole number from 0 through 50, with the stipulation that x+y+z is a whole number from 1 through 100, in quantities of 10 through 5000 g/tonne of ore as a collector in silicate floation.

Mixture of an amine alkoxylate ester and a quaternary ammonium compound as a collector for minerals containing silicate

The present invention relates to a flotation reagent for iron ores containing magnetite and/or haematite and to the use of a composition containing A) at least one amine alkoxylate ester of formula (I) or a salt thereof, wherein A and B, independently of one another, represent a C-Calkylene radical, Ris a Cto Calkyl or alkenyl radical, R, Rand R, independently of one another, are H or a Cto Cacyl radical, with the proviso that at least one of the radicals R, Ror Rstands for a Cto Cacyl radical, x, y and z, independently of one other, are an integer of from 0 to 50, with the proviso that x+y+z is an integer of from 1 to 100, and B) a compound of formula D-NH, in which D stands for a hydrocarbon radical having from 1 to 50 carbon atoms, which can contain either an oxygen atom or an oxygen atom and a nitrogen atom, in amounts of 10 to 5.000 g/tonne as a collector in the reverse flotation of iron ore containing magnetite, haematite or both.

Flotation reagent for iron ores containing magnetite and/or haematite

The invention relates to a method for separating insoluble components of sylvinite, in that the sylvinite is suspended in a saturated salt solution, a coagulating agent is added to the suspension, and a foaming agent comprising a hydrocarbon radical having from 6 to 16 carbon atoms is added to the composition so obtained.

Collecting agent and method for floatation of insoluble components of raw salts

The invention relates to a method for separating insoluble components from sylvinite, wherein the sylvinite is suspended in a saturated salt brine, a coagulating agent is added to the suspension, and a foaming agent is then added to the composition thus obtained, said foaming agent comprising and ether and/or ester, wherein a) the ethers of formula 1 correspond to R&#x2014;O&#x2014;R' (1), where R is a linear or branched alkyl or alkenyl groups having 2 to 30 carbon atoms and R&#x2032; is a linear or branched alkyl or alkenyl groups having 1 to 30 carbon atoms; b) the esters are derived from monovalent or multivalent alcohols having 1 to 30 carbon atoms (alcohol radicals); or c) the ethers and/or esters are cyclic, wherein the ring size is 6 to 30 carbon atoms.

Foaming agent and method for floatation of insoluble components of raw salts

This invention relates to the use of a compound of the formula (I) where Ris a hydrocarbon group having 1-40 carbon atoms, Ris an aliphatic hydrocarbon group having 2-4 carbon atoms, and also Ris an alkoxy group, n is in the range from 1 to 50, and m is 1 or 2, as flotation reagent in silicate flotationR&#x2014;O&#x2014;R&#x2014;NH&#x2014;[(R)&#x2014;H]&#x2003;&#x2003;(I).

Flotation reagent for silicates

The invention relates to the use of a compound of formulaR&#x2014;N-[A-NH]&#x2003;&#x2003;(1)wherein R represents a linear or branched alkyl group or alkenyl group having 6 to 20 carbon atoms while A represents a Cto Calkylene group, as collector in silicate flotation.

Growing community of inventors

Dietzenbach-Steinberg, Germany

Klaus-Ulrich Pedain