Process for agglomerating ore concentrate utilizing clay and dispersions of polymer binders or dry polymer binders
AssigneeUnion Carbide Corporation
InventorsMeyer R. Rosen, Gregory J. Dornstauder, Lawrence Marlin
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Abstract
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.
Claims66
A process of agglomerating a particulate material, comprising:
- commingling said particulate material with at least two binder system components;
- (i) a first component being a binding amount of a water-soluble, binding polymer, said polymer being applied to said particulate material as a dispersion in a non-aqueous dispersion medium;
- and
- (ii) a second component being a clay, said clay being applied to said particulate material in an amount up to about 12 pounds per tonne of said particulate material.
A process for manufacturing agglomerated mineral ore pellets, comprising:
- (a) commingling:
- (i) a binding amount of a water-soluble, binding polymer dispersed in a non-aqueous dispersion medium onto a taconite mineral ore;
- and
- (ii) bentonite, said bentonite being applied to said taconite in an amount up to about 12 pounds per tonne of said taconite, thereby forming a composition of said polymer, taconite and bentonite;
- (b) agglomerating said composition to form green balls by a means for balling mineral ore concentrate;
- and
- (c) firing said green balls by a means for applying sufficient heat to indurate said green balls and form pellets thereby.
A process of agglomerating a particulate material, comprising:
- commingling said particulate material with at least two binder system components;
- (i) a first component being a binding amount of a water-soluble, binding poly(acrylamide) or poly(ethylene oxide) based polymer, said polymer being applied to said particulate material as a dry powder;
- and
- (ii) a second component being a clay, said clay being applied in an amount up to about 12 pounds per tonne of said particulate material.
A process of manufacturing agglomerated mineral ore pellets, comprising:
- (a) commingling:
- (i) a binding amount of a water-soluble binding poly(acrylamide) or poly(ethylene oxide) based polymer, said polymer being applied to a taconite mineral ore as a dry powder;
- and
- (ii) bentonite, said bentonite being applied to said taconite in an amount up to about 12 pounds per tonne of said taconite. thereby forming a composition of said polymer, taconite and bentonite;
- (b) agglomerating said composition to form green balls by a means for balling mineral ore concentrate;
- and
- (c) firing said green balls by a means for applying sufficient heat to indurate said green balls and form pellets thereby.
A process for manufacturing agglomerated mineral ore flux pellets, comprising:
- (a) commingling:
- (i) a binding amount of a water-soluble, binding polymer dispersed in a non-aqueous dispersion medium onto a taconite mineral ore;
- (ii) bentonite, said bentonite being applied to said taconite in an amount up to about 25 pounds per tonne of said taconite;
- and
- (iii) an inorganic material, thereby forming a composition of said polymer, bentonite and inorganic material, said composition having a basicity ratio of about 0.60 or higher;
- (b) agglomerating said composition to form green balls by a means for balling mineral ore concentrate;
- and
- (c) firing said green balls by a means for applying sufficient heat to indurate said green balls and produce pellets thereby.
A process for manufacturing agglomerated mineral ore flux pellets, comprising:
- (a) commingling:
- (i) a binding amount of a water-soluble, binding polymer, said polymer applied as a dry powder onto a taconite mineral ore;
- (ii) bentonite, said bentonite being applied to said taconite in an amount up to about 25 pounds per tonne of said taconite;
- and
- (iii) an inorganic material, thereby forming a composition of said polymer, bentonite and inorganic material, said composition having a basicity ratio of about 0.60 or higher;
- (b) agglomerating said composition to form green balls by a means for balling said mineral ore concentrate;
- and
- (c) firing said green balls by a means for applying sufficient heat to indurate said green balls and produce pellets thereby.
Dependencies are inferred from the claim text.