Union Carbide Corporation

Meyer R Rosen

You-Ling Fan

George L Brode

Lawrence Marlin

Nan S Chu

David B Braun

Joseph A Faucher

Stephen Drap

Samuel Sterman

Gregory J Dornstauder

Anthony C Bracco

This invention is a method for agglomerating mineral ore concentrate comprising the commongling of mineral ore concentrate with a binding amount of a water soluble, high molecular weight polymer. The selected polymer is applied to the mineral ore concentrate either (1) as a dispersion in a non-aqueous medium or (2) as a dry powder. The most preferred polymers are water soluble poly(acrylamide) based polymers.

Process for agglomerating mineral ore concentrate utilizing dispersions

This invention is a method for agglomerating mineral ore concentrate comprising the commingling of mineral ore concentrate with a binding amount of water soluble polymers, preferably poly(acrylamides), and clay, preferably bentonite. The polymer is applied to the mineral ore concentrate either (1) as a dispersion in a non-aqueous dispersion medium or (2) as a dry powder. This invention is also a method of agglomerating mineral ore concentrate with flux material.

Process for agglomerating ore concentrate utilizing clay and dispersions

A process for the water-in-oil emulsion polymerization of at least one ethylenically-unsaturated monomer is disclosed wherein a water-in-oil emulsion of said monomer is polymerized in the presence of a first, highly reactive polymerization initiator until a small amount of polymer is present sufficient to provide a shear-stable emulsion, followed by completing the polymerization in the presence of a second, less reactive polymerization initiator.

Process for producing a polymer water-in-oil emulsion

A high molecular weight, water-soluble polymer, water-in-oil emulsions thereof and a flocculating process using same are disclosed. The polymer may be represented by the formula: ##STR1## wherein A represents a repeating unit derived from a hydrophobic vinyl monomer having a water-solubility of less than about 5 weight %; R.sub.1 and R.sub.3 are each hydrogen atom or a methyl group; R.sub.4 and R.sub.5 are each a hydrogen atom, a methyl group or an ethyl group; R.sub.2 represents a divalent hydrocarbon group having from 2 to 13 carbon atoms; X represents a monovalent cation; B represents a repeating unit derived from an ethylenically-unsaturated carboxylic acid or a salt thereof; m is about 0.1-10 mole %, n is about 1-40 mole %, p is about 20-98.9 mole %, and q is about 0-40 mole % with the proviso that m+n+p+q=100 mole % and r is a large positive integer.

High molecular weight water-soluble polymers and flocculation method

Described herein is a process for flocculating phosphatic slimes which comprises (a) forming a concentrated aqueous solution from a water-soluble ter-or higher polymer water-in oil emulsion, (b) diluting said concentrated aqueous solution of ter-or higher polymer formed in step (a) with additional water, (c) mixing the diluted solution of (b) with phosphatic slimes under appropriate floc forming conditions and (d) allowing the suspended solids to settle from said slime to form an essentially clear aqueous supernatant.

Process for flocculating phophatic slimes

Described herein are water soluble acrylamide containing polymers having an intrinsic viscosity of at least about 15 dl/g. These polymers are suitable for use in water purification.

High molecular weight water soluble polymers

Described herein are water soluble ter- or higher polymer water-in-oil emulsions comprising:

Polymer water-in-oil emulsions

Water-soluble polymers are rapidly dissolved by employing a concentrate of (i) a water-soluble particulate polymer, (ii) a water-insoluble organic vehicle which is a non-solvent for the polymer, (iii) a nonionic surfactant agent having an HLB in the ranges of 3-5 and 9-13 and if necessary, a thickening agent.

Rapidly dissolved water-soluble polymer composition

A process for forming green ceramic bodies using an aqueous solution of a high molecular weight, water-soluble polymer as a lubricant.

Process for forming ceramic bodies employing aqueous lubricant

Non-aqueous antifoam compositions comprising a lipophilic nonionic surface active agent homogeneously dispersed in a transient non-aqueous siloxanate antifoam agent.

Non-aqueous antifoam compositions

Transient, non-aqueous antifoam compositions which comprise the product resulting from heating a silica filler and a condensation product of a partially hydrolyzed trifunctional silane.

Transient antifoam compositions

Self-dispersible, non-aqueous antifoam compositions comprising a lipophilic nonionic surface active agent homogeneously dispersed in a non-emulsified diorganosiloxane antifoam agent.

Self-dispersible antifoam compositions

Articles for conditioning hair have been fabricated by blending water soluble polymers with water insoluble polymers to form interpenetrating networks so that the water soluble polymer can be extracted from the article when wet or when brought in contact with wet hair.

Growing community of inventors

Spring Valley, NY, United States of America

Meyer R Rosen