# US 2014/0190310 A1 · Binder Composition For The Agglomeration Of Fine Minerals And Pelletizing Process > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190310 A1 - Document ID: US20140190310A1 - Status: Published application - Kind: A1 - Application number: 14/233,660 - Filed: 2012-07-03 - Published: 2014-07-10 - Earliest claimed: 2011-07-21 - Assignees: Clariant GmbH; Clariant Finance (BVI) Limited - Inventors: Carlos Augusto Blasques Tooge; Nilson Mar Bartalini; Almir T. Santos; Wagner Claudio Da Silva; Monica Speck Cassola; Jorge Antonio Arias Medina - Web page: https://patentgrep.com/patent/US20140190310A1 ## CPC - C22B 1/244: organic - C22B 1/243: inorganic - Y02P 10/20: Recycling - C22B: PRODUCTION AND REFINING OF METALS (electrolytic C25); PRETREATMENT OF RAW MATERIALS - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract The instant invention relates to a binder composition for pelletization of fine mineral particles comprising a) at least one colloid agent which exerts a cohesive force on the mineral particles forming the pellets, and b) at least one synthetic polymer which disperses mineral particles evenly in the pellets. ## Claims ### Claim 1 A binder composition for pelletization of fine mineral particles comprising a) at least one colloid agent which exerts a cohesive force on the mineral particles forming the pellets, and b) at least one synthetic polymer which disperses mineral particles in the pellets. wherein the synthetic polymer is a condensation product of at least one aldehyde and at least one compound containing at least two NH2 groups, where the compound containing at least two NH2 groups is represented by the formula wherein X is an aliphatic, straight chain, branched or cyclic residue containing 1-10 carbon atoms or an aromatic residue containing 1-10 carbon atoms, both of which may contain oxygen, nitrogen atoms or one or more additional amino groups, and where the aldehyde is represented by the formula wherein R is H, —CHO or an aliphatic hydrocarbyl residue containing 1-4 carbon atoms which may contain oxygen atoms. ### Claim 2 (depends on 1) The composition of claim 1, wherein said colloid agent is selected from the group consisting of calcium compounds, magnesium compounds, clay minerals and mixtures thereof. ### Claim 3 (depends on 2) The composition of claim 2, wherein the calcium or magnesium compound is selected from the group consisting of calcium oxide, hydrated lime, calcium carbonate, calcium oxide, magnesium oxide, calcium hydroxide, magnesium hydroxide and mixtures thereof. ### Claim 4 (depends on 2) The composition of claim 2, wherein the clay mineral is selected from the group consisting of phyllossilicates, Serpentine, Kaolinite, Talc, Pyrophyllite, Micas (phlogopite, muscovite, and biotite), Illite (hydrous mica), Vermiculite, Smectites and mixtures thereof. ### Claim 5 (depends on 1) The composition of claim 1, wherein the aldehyde is selected from the group consisting of formaldehyde, acetaldehyde, propanale, pivaldehyde and glyoxal. ### Claim 6 (depends on 1) The composition of claim 1, wherein the compound containing at least two NH2 groups is selected from the group consisting of urea, 1,6-hexane diamine, diethylene triamine, 1,2-cyclohexane diamine, melamine, 1,2-diaminobenzene and 1,8-diaminonaphthalene. ### Claim 7 (depends on 1) The composition of claim 1, wherein the synthetic polymer is selected from the group consisting of melamine-urea formaldehyde resin, urea-formaldehyde resin, melamine-formaldehyde resin, melamine-glyoxal formaldehyde resin and mixtures thereof. ### Claim 8 (depends on 1) The composition of claim 1, wherein the synthetic polymer has a weight average molecular weight in the range between 500 and 500,000 g/mol, determined by GPC against polystyrene. ### Claim 9 (depends on 1) The composition of claim 1, wherein the colloid agent is present in a range of from 0.001% to 0.6% by weight of mineral ore. ### Claim 10 (depends on 9) The composition of claim 9, wherein the colloid agent is present in a range from 0.02% to 0.4% by weight. ### Claim 11 (depends on 1) The composition of claim 1, wherein the synthetic polymer is present in a range of from 0.01% to 1% by weight of mineral ore. ### Claim 12 (depends on 11) The composition of claim 11, wherein the synthetic polymer is present in a range from 0.05% to 0.6% by weight. ### Claim 13 (depends on 1) A mineral composition, comprising a binder composition according to claim 1, and a mineral selected from the group consisting of iron ore, taconite, magnetite, hematite, limonite, goethite, siderite, franklinite, pyrite, chalcopyrite, chromite, ilmenite, chrome ore, copper ore, nickel ore, zinc ore, lead ore, uranium ore, barium ore, phosphate rock, talc, dolomite, limestone, potassium sulfate, potassium chloride, double sulfate of potassium and magnesium, magnesium oxide, calcium phosphate, carbon black, coal, coal fines, calcite, quartz and mixtures thereof. ### Claim 14 (depends on 1) A process for pelletizing fine mineral ores, the process comprising the steps of a) mixing the fine mineral ore with a binder composition according to claim 1, to obtain a pellet feed, b) forming the pellet feed into balls (green pellets), c) drying the balls, d) preheating the dried balls at 60 to 105° C. until constant weight, and e) subsequently heat the preheated balls to a temperature of 1200° C. to 1400° C. to obtain pellets. ### Claim 15 (canceled) ### Claim 16 A binder composition for pelletization of fine mineral particles comprising a) at least one colloid agent which exerts a cohesive force on the mineral particles forming the pellets, and b) at least one synthetic polymer which disperses mineral particles in the pellets, wherein the synthetic polymer is a copolymer obtained by a radical polymerization of an unsaturated monomer with an acrylic acid derivative, the unsaturated monomer is represented by the formula wherein Y is hydrogen, OH or a residue containing 1 to 10 carbon atoms and at least one oxygen atom, one nitrogen atom or one aromatic moiety, the acrylic acid derivative is represented by the formula wherein R is H or CH3 and X is OH, NH2, OR′, NHR″ or NR′″R″″, the groups R′—R″″ are independently from each other aliphatic hydrocarbon groups having 1 to 6 carbon atoms. ### Claim 17 (depends on 16) The composition of claim 16, wherein the colloid agent is selected from the group consisting of calcium compounds, magnesium compounds, clay minerals and mixtures thereof. ### Claim 18 (depends on 17) The composition of claim 17, wherein the calcium or magnesium compound is selected from the group consisting of calcium oxide, hydrated lime, calcium carbonate, calcium oxide, magnesium oxide, calcium hydroxide, magnesium hydroxide and mixtures thereof. ### Claim 19 (depends on 17) The composition of claim 17, wherein the clay mineral is selected from the group consisting of phyllossilicates, Serpentine, Kaolinite, Talc, Pyrophyllite, Micas (phlogopite, muscovite, and biotite), Illite (hydrous mica), Vermiculite, Smectites, and mixtures thereof. ### Claim 20 (depends on 16) The composition of claim 16, wherein the acrylic acid derivative is selected from the group consisting of acrylic acid, methacrylic acid, acrylamide, methacrylic amide, N,N-dimethylacrylamide, N,N-dimethylmethacrylamide and ammonium acryloyldimethyltaurate ### Claim 21 (depends on 16) The composition of claim 16, wherein Y is selected from the group consisting of residues of the formula —OR wherein R is H, —C(═O)H, —C(═O)CH3, C(═O)CH2CH3, C(═O)CH2CH2CH3, C(═O)CH(CH3)2, and C(═O)C(CH3)3. ### Claim 22 (depends on 16) The composition of claim 16, wherein Y is selected from vinylalcohol, vinylacetate, vinylformiate, vinylpyrrolidone, dimethyldiallylammoniumchloride and styrene. ### Claim 23 (depends on 16) The composition of claim 16, wherein the synthetic polymer is a maleic acid/acrylic acid or a maleic acid/methacrylic acid copolymer. ### Claim 24 (depends on 16) The composition of claim 16, wherein the synthetic polymer is selected from the group consisting of styrene-acrylic copolymer, vinyl-acrylic copolymer, vinyl acetate-acrylic copolymer, acrylic-maleic copolymer, diallyl dimethyl ammonium chloride-acrylamide copolymer, ammonium acryloyldimethyltaurate-vinylpyrrolidone copolymer and mixtures thereof. ### Claim 25 (depends on 16) The composition of claim 16, wherein the synthetic polymer has a weight average molecular weight in the range between 500 and 500,000 g/mol, determined by GPC against polystyrene. ### Claim 26 (depends on 16) The composition of claim 16, wherein the colloid agent is present in a range of from 0.001% to 0.6% by weight of mineral ore. ### Claim 27 (depends on 26) The composition of claim 26, wherein the colloid agent is present in a range from 0.02% to 0.4% by weight. ### Claim 28 (depends on 16) The composition of claim 16, wherein the synthetic polymer is present in a range of from 0.01% to 1% by weight of mineral ore. ### Claim 29 (depends on 28) The composition of claim 28, wherein the synthetic polymer is present in a range from 0.05% to 0.6% by weight. ### Claim 30 (depends on 16) A mineral composition, comprising a binder composition according to claim 16, and a mineral selected from the group consisting of iron ore, taconite, magnetite, hematite, limonite, goethite, siderite, franklinite, pyrite, chalcopyrite, chromite, ilmenite, chrome ore, copper ore, nickel ore, zinc ore, lead ore, uranium ore, barium ore, phosphate rock, talc, dolomite, limestone, potassium sulfate, potassium chloride, double sulfate of potassium and magnesium, magnesium oxide, calcium phosphate, carbon black, coal, coal fines, calcite, quartz and mixture thereof. ### Claim 31 (depends on 16) A process for pelletizing fine mineral ores, the process comprising the steps of a) mixing the fine mineral ore with a binder composition according to claim 16, to obtain a pellet feed, b) forming the pellet feed into balls (green pellets), c) drying the balls, d) preheating the dried balls at 60 to 105° C. until constant weight, and e) subsequently heat the preheated balls to a temperature of 1200° C. to 1400° C. to obtain pellets. ### Claim 32 (canceled) ### Claim 33 A binder composition for pelletization of fine mineral particles comprising a) at least one colloid agent which exerts a cohesive force on the mineral particles forming the pellets, and b) at least one synthetic polymer which disperses mineral particles in the pellets, wherein the colloid agent is selected from the group consisting of calcium oxide, hydrated lime, calcium carbonate, calcium oxide, magnesium oxide, calcium hydroxide, magnesium hydroxide and mixtures thereof. ### Claim at position 34 34-41. (canceled) ### Claim 42 (depends on 33) The composition of claim 33, wherein the synthetic polymer is a homopolymer obtained by radical polymerization of an olefinically unsaturated monomer comprising at least one carboxylic group. ### Claim 43 (depends on 42) The composition of claim 42, wherein the olefinically unsaturated monomer comprising at least one carboxylic group is selected from the group consisting of acrylic acid, methacrylic acid, vinyl acetate, vinyl formiate, vinyl propionate, maleic acid, maleic acid anhydride and fumaric acid. ### Claim 44 (depends on 33) The composition of claim 33, wherein the synthetic polymer is selected from the group consisting of vinyl acetate polymer, poly(maleic anhydride), polycarboxylate, sodium salt of poly-naphthalene sulfonic acid, dimethylamine-epichlorohydrin copolymer and mixtures thereof. ### Claim 45 (depends on 33) The composition of claim 33, wherein the synthetic polymer has a weight average molecular weight in the range between 500 and 500,000 g/mol, determined by GPC against polystyrene. ### Claim 46 (depends on 33) The composition of claim 33, wherein the colloid agent is present in a range of from 0.001% to 0.6% by weight of mineral ore. ### Claim 47 (depends on 46) The composition of claim 46, wherein said range is from 0.02% to 0.4% by weight. ### Claim 48 (depends on 33) The composition of claim 33, wherein the synthetic polymer is present in a range of from 0.01% to 1% by weight of mineral ore. ### Claim 49 (depends on 48) The composition of claim 48, wherein the range is from 0.05% to 0.6% by weight. ### Claim 50 (depends on 33) A mineral composition, comprising a binder composition according to claim 33 and a mineral selected from the group consisting of iron ore, taconite, magnetite, hematite, limonite, goethite, siderite, franklinite, pyrite, chalcopyrite, chromite, ilmenite, chrome ore, copper ore, nickel ore, zinc ore, lead ore, uranium ore, barium ore, phosphate rock, talc, dolomite, limestone, potassium sulfate, potassium chloride, double sulfate of potassium and magnesium, magnesium oxide, calcium phosphate, carbon black, coal, coal fines, calcite, and mixtures thereof. ### Claim 51 (depends on 33) A process for pelletizing fine mineral ores, comprising the steps of a) mixing a fine mineral ore with a binder composition according to claim 33 to obtain a pellet feed, b) forming the pellet feed into balls (green pellets), c) drying the balls, d) preheating the dried balls at 60 to 105° C. until constant weight, and e) subsequently heating the preheated balls to a temperature of 1200° C. to 1400° C. to obtain pellets. ### Claim 52 (canceled)