Claims
- 1. A process of agglomerating a particulate material consisting essentially commingling said particulate material with a binding amount of water soluble polymer, wherein said polymer is applied to said particulate material as a dispersion in a non-aqueous dispersion medium.
- 2. The process of claim 1 in which the polymer is contained in the aqueous portion of a water-in-oil emulsion.
- 3. The process of claim 1 in which fine particles of the polymer are dispersed in an essentially non-aqueous dispersion medium which is a non-solvent for the polymer.
- 4. The process of claim 1 wherein said polymer is a poly(acrylamide) based polymer.
- 5. The process of claim 4 wherein said polymer contains repeating units of the following formula: ##STR16## wherein R.sub.2.sup.+ is an alkali metal ion, f and g are from 5 to about 90 percent, f+g=100, and d is from about 1,000 to about 500,000.
- 6. The process of claim 5 wherein said polymer is derived from monomer units of acrylamide and sodium acrylate.
- 7. The process of claim 4 wherein said polymer contains repeating units of the following formula: ##STR17## wherein R, R.sub.1 and R.sub.3 are independently hydrogen or methyl, R.sub.2.sup.+ is an alkali metal ion and R.sub.4 is either
- (1) --OR.sub.5 wherein R.sub.5 is an alkyl group having up to 5 carbon atoms;
- (2) ##STR18## wherein R.sub.6 is an alkyl group having up to up to 8 carbon atoms; (3) ##STR19## wherein R.sub.7 is either metyl, or butyl; (4) phenyl;
- (5) substituted phenyl;
- (6) --CN; or
- (7) ##STR20## and hydrolyzed tetrapolymers thereof, wherein (a) is from about 5 to about 90 percent, (b) is from about 5 to about 90 percent, (c) is from 0 to about 20 percent, (a)+(b)+(c)=100, and (d) is from about 1,000 to about 500,000.
- 8. The process of claim 7 wherein said polymer is derived from monomer units of acrylamide, sodium acrylate, and vinyl acetate.
- 9. The process of claim 4 wherein said polymers are derived from at least one of the following groups of monomer units: acrylamide, methacrylamide and derivatives thereof of the formula: ##STR21## where R.sub.13 is a hydrogen atom or a methyl group; R.sub.14 is a hydrogen atom, a methyl group or an ethyl group; R.sub.15 is a hydrogen atom, a methyl group, an ethyl group or --R.sub.16 --SO.sub.3 X, wherein R.sub.16 is a divalent hydrocarbon group having 1 to 13 carbon atoms and X is a monovalent cation.
- 10. The process of claim 1 wherein said polymer is applied to said particulate material at an active polymer concentration between about 0.001 to about 0.3 percent by weight.
- 11. The process of claim 1, wherein an inorganic salt is commingled with said particulate material, said particulate material being mineral ore concentrate.
- 12. The process of claim 11 wherein said inorganic salt is an alkali metal or alkaline earth metal salt of carbonates, halides, or phosphates, or a mixture thereof, and said mineral ore concentrate is taconite concentrate.
- 13. The process of claim 11 wherein said inorganic salt is at least one member selected from the group consisting of sodium carbonate, calcium carbonate, dolomite, magnesium carbonate, sodium chloride, and sodium metaphosphate.
- 14. The process of claim 12 wherein said inorganic salt is applied to said mineral ore concentrate in an aqueous solution or slurry.
- 15. The process of claim 11 wherein said inorganic salt is applied to said mineral ore concentrate at a concentration between about 0.001 to about 0.5 percent by weight of concentrate.
- 16. The process of claim 2 wherein said water-in-oil emulsion has an oil phase selected from the group consisting of benzene, xylene, toluene, mineral oils, kerosenes, paraffinic hydrocarbons, petroleum, Isopar.RTM. M, and mixtures thereof.
- 17. The process of claim 2 wherein said emulsion contains an inverting surfactant.
- 18. A product of the process of claim 1.
- 19. The process of claim 1 wherein green pellets of mineral ore are obtained by agglomerating said particulate material and said green pellets are then fired by a means for applying heat sufficient to indurate said ore.
- 20. The process of claim 19 wherein said sufficient heat to indurate said pellets is at least about 1800.degree. F.
- 21. The process of claim 20 wherein said sufficient heat to indurate said pellets is at least about 2800.degree. F.
- 22. A product of the process of claim 19.
- 23. A process of producing pellets consisting essentially of:
- (a) selecting a water soluble polymer dispersed in a non aqueous dispersion medium;
- (b) mixing a binding quantity of said polymer with a taconite concentrate;
- (c) pelletizing in a balling apparatus the mixture of step (b) to form green pellets; and
- (d) indurating said green pellets with heat.
- 24. The process of claim 23 in which the polymer is contained in the aqueous portion of a water-in-oil emulsion.
- 25. The process of claim 23 in which fine particles of the polymer are dispersed in an essentially non-aqueous dispersion medium which is a non-solvent for the polymer.
- 26. The process of claim 23 wherein said polymer contains repeating units selected from the group consisting of units of the formula: ##STR22## wherein R.sub.13 is a hydrogen atom or a methyl group; R.sub.14 is a hydrogen atom, a methyl group or an ethyl group; R.sub.15 is a hydrogen atom, a methyl group, an ethyl group or --R.sub.16 --SO.sub.3 X, wherein R.sub.16 is a divalent hydrocarbon group having 1 to 13 carbon atoms and X is a monovalent cation; units of the formula: ##STR23## wherein R.sub.2.sup.+ is an alkali metal ion, f and g are from 5 to about 90 percent, f+g=100, and d is from about 1,000 to about 500,000; and mixtures of such units.
- 27. The process of claim 23 wherein an inorganic salt is also mixed with the concentrate, said inorganic salt being an alkali metal or an alkaline earth metal salt of carbonates, halides, or phosphates, or a combination thereof.
- 28. The process of claim 27 wherein said inorganic salt is applied to said mineral ore concentrate in a concentration between about 0.001 to about 0.5 percent by weight and wherein said polymer is applied to said mineral ore concentrate at an active polymer concentration between about 0.001 to about 0.3 percent by weight.
- 29. A product of the process of claim 28.
- 30. A process of agglomerating a particulate material, comprising:
- commingling said particulate material with a water soluble poly(acrylamide) based polymer, wherein said polymer is applied to said particulate material as a dry powder.
- 31. The process of claim 30 wherein said polymer contains repeating units of the following formula: ##STR24## wherein R.sub.2.sup.+ is an alkali metal ion, f and g are from 5 to about 90 percent, f+g=100, and d is from about 1,000 to abotu 500,000.
- 32. The process of claim 31 wherein said polymer is derived from monomer units of acrylamide and sodium acrylate.
- 33. The process of claim 30 wherein said polymer contains repeating units of the following formula: ##STR25## wherein R, R.sub.1, and R.sub.3 are independently hydrogen or methyl, R.sub.2.sup.+ is an alkali metal ion, R.sub.4 is either
- (1) --OR.sub.5 wherein R.sub.5 is an alkyl group having up to 5 carbon atoms;
- (2) ##STR26## wherein R.sub.6 is an alkyl group having up to up to 8 carbon atoms; (3) ##STR27## wherein R.sub.7 is either methyl, or butyl; (4) phenyl;
- (5) substituted phenyl;
- (6) --CN; or
- (7) ##STR28## and hydrolized tetrapolymers thereof, wherein (a) is from about 5 to about 90 percent, (b) is from about 5 to about 90 percent, (c) is from 0 to about percent, (a)+(b)+(c)=100, and (d) is from about 1,000 to about 500,000.
- 34. The process of claim 33 wherein said polymer is derived from monomer units of acrylamide, sodium acrylate, and vinyl acetate.
- 35. The process of claim 30 wherein said polymers are derived from at least one of the following roups of monomer units: acrylamide, methacrylamide and derivatives thereof of the formula: ##STR29## where R.sub.13 is a hydrogen atom or a methyl group; R.sub.14 is a hydrogen atom, a methyl group or an ethyl group; R.sub.15 is a hydrogen atom, a methyl group, an ethyl group or --R.sub.16 --SO.sub.3 X, wherein R.sub.16 is a divalent hydrocarbon group having 1 to 13 carbon atoms and X is a monovalent cation.
- 36. The process of claim 30 wherein said polymer is applied to said particulate material at an active polymer concentration between about 0.001 to about 0.3 percent by weight.
- 37. The process of claim 30 wherein an inorganic salt is commingled with said particulate material, said particulate material being a mineral ore concentrate.
- 38. The process of claim 37 wherein said inorganic salt is an alkali metal or alkaline earth metal salt of carbonates, halides, or phosphates, or a mixture thereof, and said mineral ore concentrate is taconite concentrate.
- 39. The process of claim 37 wherein said inorganic salt is at least one member selected from the group consisting of sodium carbonate, calcium carbonate, dolomite, magnesium carbonate, sodium chloride, and sodium metaphosphate.
- 40. The process of claim 38 wherein said inorganic salt is applied to said mineral ore concentrate in an aqueous solution or slurry.
- 41. The process of claim 39 wherein said inorganic salt is applied to said mineral ore concentrate at a concentration on said concentrate between about 0.001 to 0.5 percent by weight of concentrate.
- 42. A product of the process of claim 30.
- 43. The process of claim 30 wherein green pellets of mineral ore are obtained by agglomerating said particulate material and said green pellets are fired by a means for applying heat sufficient to indurate said ore, said particulate material being taconite.
- 44. The process of claim 43 wherein said sufficient heat to indurate said pellets is of a temperature of at least 1800.degree. F.
- 45. The process of claim 44 wherein said sufficient heat to indurate said pellets is of a temperature of about 2800.degree. F.
- 46. A product of the process of claim 43.
- 47. A process of producing pellets comprising:
- (a) selecting a water soluble poly(acrylamide) based polymer, said polymer being in the form of a dry powder;
- (b) mixing a binding quantity of said polymer with a taconite concentrate;
- (c) pelletizing in a balling apparatus the mixture of step (b) to form green pellets; and
- (d) indurating said green pellets with heat.
- 48. The process of claim 47 wherein said polymer contains repeating units selected from the group consisting of units of the formula: ##STR30## wherein R.sub.13 is a hydrogen atom or a methyl group; R.sub.14 is a hydrogen atom, a methyl group or an ethyl group; R.sub.15 is a hydrogen atom, a methyl group, an ethyl group or --R.sub.16 --SO.sub.3 X, wherein R.sub.16 is a divalent hydrocarbon group having 1 to 13 carbon atoms and X is a monovalent cation; units of the formula: ##STR31## wherein R.sub.2.sup.+ is an alkali metal ion, f and g are from 5 to about 90 percent, f+g=100, and d s from about 1,000 to 500,000.
- 49. The process of claim 47 wherein an inorganic salt is also mixed with the concentrate, said inorganic salt being an alkali metal or an alkaline earth metal salt of carbonates, halides, or phosphates, or a combination thereof.
- 50. The process of claim 49 wherein said inorganic salt is applied to said taconite concentrate in a concentration between about 0.001 to about 0.5 percent by weight and wherein said polymer is applied to said taconite concentrate at an active polymer concentration between about 0.001 to about 0.3 percent by weight.
- 51. A product of the process of claim 47.
- 52. The process of claim 12 wherein said inorganic salt is a mixture of a water soluble inorganic salt and at least one member selected from the group consisting of dolomite, maqnesium carbonate, and calcium carbonate.
- 53. The process of claim 12 wherein said inorganic salt is a mixture of Na.sub.2 CO.sub.3, used at less than 1.2 lb/tonne of added Na.sub.2 CO.sub.3, plus at least one member selected from the group consisting of dolomite, magnesium carbonate, and calcium carbonate.
- 54. The process of claim 52 wherein the water soluble inorganic salt is used in making a flux pellet.
- 55. The process of claim 54 wherein the water soluble inorganic salt is Na.sub.2 CO.sub.3.
- 56. The process of claim 38 wherein said inorganic salt is a mixture of a water soluble inorganic salt and at least one member selected from the group consisting of dolomite, magnesium carbonate, and calcium carbonate.
- 57. The process of claim 38 wherein said inorganic salt is a mixture of Na.sub.2 CO.sub.3, used at less than 1.2 lb/tonne of added Na.sub.2 CO.sub.3, plus at least one member selected from the group consisting of dolomite, magnesium carbonate, and calcium carbonate.
- 58. The process of claim 56 wherein the water soluble inorganic salt is used in making a flux pellet.
- 59. The process of claim 58 wherein the water soluble inorganic salt is Na.sub.2 CO.sub.3.
- 60. The process of claim 23 including the additonal steps of selecting an inorganic material that tends to reduce the acidity of taconite concentrate and adding that material to the taconite concentrate in an amount sufficient to result in a flux pellet.
- 61. The process of claim 60 wherein sodium carbonate is commingled with said inorganic material selected to create the flux pellet.
- 62. The process of claim 47 including the additonal steps of selecting an inorganic material that tends to reduce the acidity of taconite concentrate and adding that material to the taconite concentrate in an amount sufficient to result in a flux pellet.
- 63. The process of claim 62 wherein sodium carbonate is commingled with said inorganic material selected to create the flux pellet.
Parent Case Info
This application is a continuation-in part of U.S. application Ser. No. 736,237, filed May 21, 1985, and is related to commonly assigned U.S. application Ser. No. 773,700, filed Sept. 9, 1985, now abandoned and refiled as U.S. application Ser. No. 875,250, June 17, 1986.
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
736237 |
May 1985 |
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