Basf Se Corporation

Omya International Ag

Joerg Nieberle

Anton Esser

Christian Bittner

Guenter Oetter

Alexsandro Berger

Roland Boehn

Juergen Schmidt-Thuemmes

Bernhard Ulrich Von Vacano

Sebastian Emmerling

Bernhard Von Vacano

Bogdan Moraru

Thomas Goetz

Jurgen Schmidt-Thuemmes

Binder compositions comprising as essential components at least one dispersion polymer P having a glass transition temperature &#x2264;20&#xb0; C. and comprising ethyl acrylate in copolymerized form and also at least one mineral binder M exhibiting low VOC emission after curing.

Binder composition

The invention relates to a process for enriching an iron mineral from a silicate containing iron ore by inverse flotation comprising the addition of a collector or collector composition comprising at least one of the compounds of formulae RO&#x2014;X&#x2014;NH(Ia); RO&#x2014;X&#x2014;NHY(Ib); RO&#x2014;X&#x2014;NH&#x2014;Z&#x2014;NH(IIa); and RO&#x2014;X&#x2014;NH&#x2014;Z&#x2014;NHY(IIb), in which X is a linear or branched aliphatic alkylene group containing 2 to 6 carbon atoms; Z is a linear or branched aliphatic alkylene group containing 2 to 6 carbon atoms; Y&#x2212; is an anion; and R is an aliphatic group of the formula (I) CHCH(CH)CH&#x2014; (I) wherein the CHmoeity of the aliphatic group of the formula (I) comprises 70 to 99% by weight n-CH&#x2014;, and 1 to 30% by weight CHCH(CH)CH&#x2014; and/or CHCH(CH)CHCH&#x2014;.RO&#x2014;X&#x2014;NH&#x2003;&#x2003;(Ia)RO&#x2014;X&#x2014;NHY&#x2003;&#x2003;(Ib)RO&#x2014;X&#x2014;NH&#x2014;Z&#x2014;NH&#x2003;&#x2003;(IIa)RO&#x2014;X&#x2014;NH&#x2014;Z&#x2014;NHY&#x2003;&#x2003;(IIb)CHCH(CH)CH&#x2014;&#x2003;&#x2003;(I)

Amine and diamine compounds and their use for inverse froth flotation of silicate from iron ore

Compounds of the formulae: RO&#x2014;X&#x2014;NH(Ia); RO&#x2014;X&#x2014;NHY(Ib); RO&#x2014;X&#x2014;NH&#x2014;Z&#x2014;NH(IIa); and RO&#x2014;X&#x2014;NH&#x2014;Z&#x2014;NHY(IIb), in which X is an aliphatic alkylene group containing 2 to 6 carbon atoms; Z is an aliphatic alkylene group containing 2 to 6 carbon atoms; Yis an anion; and R is an aliphatic iso CH-group with average branching degree ranging from 1.5 to 3.5. The compounds are particularly suitable as flotation collectors for enriching an iron mineral from a silicate-containing iron ore.

The invention concerns a process for enriching an iron mineral from a silicate containing iron ore by inverse flotation comprising the addition of a collector or collector composition comprising at least one of the compounds of formulae RC(O)N(Z&#x2014;O&#x2014;X&#x2014;NH)(Ia); RC(O)N(Z&#x2014;O&#x2014;X&#x2014;NH)HY(Ib); in which X is an aliphatic alkylene group containing 2 to 6 carbon atoms; Z is an aliphatic alkylene group containing 2 to 6 carbon atoms; Yis an anion; and R is a saturated or unsaturated, linear or branched, aliphatic or aromatic moiety having between 7 and 23 carbon atoms. The invention also relates to the novel compounds according to formulae (Ia) and (Ib), compositions comprising said compounds and the use of compounds and formulations as collectors for enriching of iron mineral.

Diamine compounds and their use for inverse froth flotation of silicate from iron ore

Aqueous slurries of finely divided fillers which are at least partly covered by anionic latices, the slurries being obtainable by treating aqueous slurries of finely divided fillers with at least one anionic latex with a glass transition temperature of &#x2212;5 to &#x2212;50&#xb0; C., preparation of the aqueous slurries and their use as an additive to the paper stock in the production of filler-containing paper, filler-containing cardboard or filler-containing board by draining the paper stock.

Aqueous suspensions of fine-particulate fillers, method for the manufacture thereof and use thereof for the manufacture of filler-containing papers

Process for the production of paper, board and cardboard having high dry strength by addition of a water-soluble cationic polymer and of an anionic polymer to a paper stock, draining of the paper stock and drying of the paper products, wherein an aqueous dispersion of at least one anionic latex and at least one degraded starch is used as the anionic polymer.

Method for producing paper, card and board with high dry strength

An aqueous slurry of finely divided fillers which are at least partly coated with anionic latices, wherein the slurry is obtainable by treating an aqueous slurry of finely divided fillers with an aqueous dispersion comprising at least one anionic latex and at least one degraded starch, preparation of the aqueous slurries and their use as an additive to the paper stock in the production of filler-containing paper, filler-containing cardboard or filler-containing board by draining the paper stock.

Aqueous suspensions of fine-particulate fillers, method for the manufacture thereof and use thereof for the manufacture of papers containing fillers

Aqueous slurries of finely divided fillers which are at least partly covered by anionic latices, the slurries being obtainable by treating aqueous slurries of finely divided fillers with at least one anionic latex which comprises, incorporated in the form of polymerized units, at least one monomer comprising phosphonic and/or phosphoric acid groups, preparation of the aqueous slurries and their use as an additive to the paper stock in the production of filler-containing paper, filler-containing cardboard or filler-containing board by draining the paper stock.

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Wachenheim, Germany

Joerg Nieberle