Flotation separation of glass from a mixture of comminuted inorganic materials

Claim 2

A process for separating glass from a particulate mixture of inorganic materials which comprises subjecting a particulate mixture of inorganic materials including particles of a size up to about 28 mesh and containing, as a portion thereof, a quantity of particulate glass particles comprising glasses having the composition of from about 70 to about 73 percent by weight SiO 2 , from about 11 to about 18 percent by weight Na 2 O, from about 7 to about 17 percent by weight CaO, the balance being essentially other metal oxides to froth flotation with a beneficiating amount of at least one functional amine glass collector reagent, said amine containing from about 8 to about 22 carbon atoms in at least one hydrocarbon group attached to a nitrogen atom to form a float fraction comprising predominantly particulate glass and an inorganic tailing substantially free of particulate glass, at least a portion of said particulate mixture of inorganic materials, exclusive of the particulate glass particles, being nonresponsive to the beneficiating action of said amine collector reagent to cause the particulate glass particles to concentrate in the float fraction.

Claim 3

A process as claimed in claim 1 in which a substantial portion of the particulate mass of inorganic materials has a particle size between about 150 and about 32 mesh.

Claim 4

A process as claimed in claim 1 in which the amine collector reagent is present in an amount equivalent to about 0.15 to about 2 lbs. per ton of said particulate mixture of inorganic materials.

Claim 5

A process as claimed in claim 1 in which the amine collector reagent is selected from the group consisting of cocoamine, the reaction product of tall oil and diethylene triamine, octylamine, decosaneamine, the reaction product of tall oil and N,N dimethyl aminopropylamine, and tallowamine.

Claim 6

A process as claimed in claim 4 in which the amine collector reagent is present in an amount equivalent to about 0.15 to about 2 lbs. per ton of said particulate mixture of inorganic materials.

Claim 7

A process as claimed in claim 1 in which there is present an extender for the amine collector reagent.

Claim 8

A process as claimed in claim 6 in which the extender is present in an amount up to an equivalent of about 3 lbs. per ton of said particulate inorganic materials.

Claim 9

A process as claimed in claim 1 in which a frothing agent is present.

Claim 10

A process as claimed in claim 8 in which the frothing agent is present in an amount up to about 0.5 lb. per ton of said particulate inorganic materials.

Claim 11

A process as claimed in claim 1 in which the amine collector reagent is selected from the group consisting of primary amines and secondary amines.

Claim 12

A process for separating glass from a particulate mixture of substantially inorganic materials which comprises subjecting a particulate mixture of inorganic materials having a particle size between about 200 mesh and about 28 mesh and containing, as a portion thereof, a quantity of particulate glass particles comprising glasses having the composition of from about 70 to about 73 percent by weight SiO 2 , from about 11 to about 18 percent by weight Na 2 O, from about 7 to about 17 percent by weight CaO, the balance being essentially other metal oxides to froth flotation with a beneficiating amount of at least one functional amine glass collector reagent, said amine containing from about 8 to about 22 carbon atoms in at least one hydrocarbon group attached to the nitrogen atom to form a float fraction comprising predominantly particulate glass and an inorganic tailing substantially free of particulate glass, at least a portion of said particulate mixture of inorganic materials, exclusive of the particulate glass particles, being nonresponsive to the beneficiating action of said amine collector reagent to cause the particulate glass particles to concentrate in the float fraction.

Claim 13

A process for separating glass from a particulate mixture of substantially inorganic materials which comprises subjecting a particulate mixture of inorganic materials having a particle size between about 200 mesh and about 28 mesh and containing, as a portion thereof, a quantity of particulate glass particles comprising glasses having the composition of from about 70 to about 73 percent by weight SiO 2 , from about 11 to about 18 percent by weight Na 2 O, from about 7 to about 17 percent by weight CaO, the balance being essentially other metal oxides to froth flotation with a beneficiating amount of at least one functional amine glass collector reagent, said amine containing from about 8 to about 22 carbon atoms in at least one hydrocarbon group attached to the nitrogen atom to form a float fraction comprising predominantly particulate glass and an inorganic tailing substantially free of particulate glass, at least a portion of said particulate mixture of inorganic materials, exclusive of the particulate glass particles, being nonresponsive to the beneficiating action of said amine collector reagent to cause the particulate glass particles to concentrate in the float fraction.

Claim 14

A process as claimed in claim 11 in which the amine collector reagent is present in an amount equivalent to about 0.15 to about 2 lbs. per ton of said particulate mixture of inorganic materials.

Claim 15

A process as claimed in claim 11 in which the amine collector reagent is selected from the group consisting of cocoamine, the reaction product of tall oil and diethylene triamine, octylamine, decosaneamine, the reaction product of tall oil and N,N dimethyl aminopropylamine, and tallowamine.

Claim 16

A process as claimed in claim 13 in which the amine collector reagent is present in an amount equivalent to about 0.15 to about 2 lbs. per ton of said particulate mixture of inorganic materials.

Claim 17

A process as claimed in claim 11 in which there is present an extender for the amine collector reagent.

Claim 18

A process as claimed in claim 15 in which the extender is present in an amount up to an equivalent of about 3 lbs. per ton of said particulate inorganic materials.

Claim 19

A process as claimed in claim 11 in which a frothing agent is present.

Claim 20

A process as claimed in claim 17 in which the frothing agent is present in an amount up to about 0.5 lb. per ton of said particulate inorganic materials.

Claim 21

A process as claimed in claim 18 in which a frothing agent is present.

Claim 22

A process as claimed in claim 19 in which the frothing agent is present in an amount up to about 0.5 lb. per ton of said particulate mass of inorganic tailing.

Claim 23

A process as claimed in claim 11 in which the amine collector reagent is selected from the group consisting of primary amines and secondary amines.

Claim 24

In a process for the treatment of solid wastes for recovery of values contained therein which includes classifying the solid waste into an organic fraction, a metals fraction and an inorganic tailing including glasses having the composition of from about 70 to about 73 percent by weight SiO 2 , from about 11 to about 18 percent by weight Na 2 O and from about 7 to about 17 percent by weight CaO, the balance being essentially other metal oxides, said inorganic tailing being substantially free of organics and metals, the improvement which comprises: a. forming from the inorganic tailing a particulate inorganic mass including said glasses and having a particle size up to about 28 mesh; b. subjecting the particulate inorganic mass to froth flotation in the presence of a beneficiating amount of at least one functional amine glass collector reagent, a said amine collector reagent containing from about 8 to about 22 carbon atoms in at least one hydrocarbon group attached to a nitrogen atom to form a float fraction predominantly comprising said particulate glasses and an inorganic residue substantially free of said glasses.

Claim 25

In a process for the treatment of solid wastes for recovery of values contained therein which includes classifying the solid waste into an organic fraction, a metals fraction and an inorganic tailing including glasses having the composition of from about 70 to about 73 percent by weight SiO 2 , from about 11 to about 18 percent by weight Na 2 O and from about 7 to about 17 percent by weight CaO, the balance being essentially other metal oxides, said inorganic tailing being substantially free of organics and metals, the improvement which comprises: a. forming from the inorganic tailing a particulate inorganic mass including said glasses and having a particle size up to about 28 mesh; b. subjecting the particulate inorganic mass to froth flotation in the presence of a beneficiating amount of at least one functional amine glass collector reagent, a said amine collector reagent containing from about 8 to about 22 carbon atoms in at least one hydrocarbon group attached to a nitrogen atom to form a float fraction predominantly comprising said particulate glasses and an inorganic residue substantially free of said glasses.

Claim 26

A process as claimed in claim 22 in which the amine collector reagent is present in an amount equivalent to about 0.15 to about 2 lbs. per ton of said particulate mixture of inorganic materials.

Claim 27

A process as claimed in claim 22 in which the amine collector reagent is selected from the group consisting of cocoamine, the reaction product of tall oil and diethylene triamine, octylamine, decosaneamine, the reaction product of tall oil and N,N dimethyl aminopropylamine, and tallowamine.

Claim 28

A process as claimed in claim 24 in which the amine collector reagent is present in an amount equivalent to about 0.15 to about 2 lbs. per ton of said particulate mixture of inorganic materials.

Claim 29

A process as claimed in claim 22 in which there is present an extender for the amine collector reagent.

Claim 30

A process as claimed in claim 26 in which the extender is present in an amount up to an equivalent of about 3 lbs. per ton of said particulate inorganic materials.

Claim 31

A process as claimed in claim 22 in which a frothing agent is present.

Claim 32

A process as claimed in claim 28 in which the frothing agent is present in an amount up to about 0.5 lb. per ton of said particulate inorganic materials.

Claim 33

A process as claimed in claim 22 in which the amine collector reagent is selected from the group consisting of primary amines and secondary amines.

Claim 34

In a process for the treatment of solid wastes for recovery of values contained therein which includes classifying the solid waste into an organic fraction, a metals fraction and an inorganic tailing including glasses having the composition of from about 70 to about 73 percent by weight SiO 2 , from about 11 to about 18 percent by weight Na 2 O and from about 7 to about 17 percent by weight CaO, the balance being essentially other metal oxides, said inorganic tailing being substantially free of organics and metals, the improvement which comprises: a. forming from the inorganic tailing a particulate inorganic mass including said glasses having a particle size between about 200 and about 28 mesh; b. subjecting the particulate inorganic mass to froth flotation in the presence of a beneficiating amount of at least one functional amine glass collector reagent, a said amine containing from about 8 to about 22 carbon atoms in at least one hydrocarbon group attached to a nitrogen atom to form a float fraction predominantly comprising said particulate glasses and an inorganic residue substantially free of said glasses.

Claim 35

In a process for the treatment of solid wastes for recovery of values contained therein which includes classifying the solid waste into an organic fraction, a metals fraction and an inorganic tailing including glasses having the composition of from about 70 to about 73 percent by weight SiO 2 , from about 11 to about 18 percent by weight Na 2 O and from about 7 to about 17 percent by weight CaO, the balance being essentially other metal oxides, said inorganic tailing being substantially free of organics and metals, the improvement which comprises: a. forming from the inorganic tailing a particulate inorganic mass including said glasses having a particle size between about 200 and about 28 mesh; b. subjecting the particulate inorganic mass to froth flotation in the presence of a beneficiating amount of at least one functional amine glass collector reagent, a said amine containing from about 8 to about 22 carbon atoms in at least one hydrocarbon group attached to a nitrogen atom to form a float fraction predominantly comprising said particulate glasses and an inorganic residue substantially free of said glasses.

Claim 36

A process as claimed in claim 31 in which the amine collector reagent is selected from the group consisting eof primary amines and secondary amines.

Claim 37

A process as claimed in claim 31 in which the amine collector reagent is present in an amount equivalent to about 0.15 to about 2 lbs. per ton of said particulate mass of inorganic tailing.

Claim 38

A process as claimed in claim 32 in which the amine collector reagent is present in an amount equivalent to about 0.15 to about 2 lbs. per ton of said particulate mass of inorganic tailing.

Claim 39

A process as claimed in claim 31 in which the amine collector reagent is selected from the group consisting of cocoamine, the reaction product of tall oil and diethylene triamine, octylamine, decosaneamine, the reaction product of tall oil and N,N dimethyl aminopropylamine, and tallowamine.

Claim 40

A process as claimed in claim 35 in which the amine collector reagent is present in an amount equivalent to about 0.15 to about 2 lbs. per ton of said particulate mass of inorganic tailing.

Claim 41

A process as claimed in claim 31 in which there is present an extender for the amine collector reagent.

Claim 42

A process as claimed in claim 37 in which the extender is present in an amount up to an equivalent of about 3 lbs. per ton of said particulate mass of inorganic tailing.

Claim 43

A process for separating glass from a mixture of inorganic materials containing as a part thereof particulate glass having a particle size less than a preselected mesh size which comprises: a. separating materials having a particle size greater than the preselected mesh size from the materials having a particle size less than the preselected mesh size; b. further comminuting the materials having a particle size less than the preselected mesh size to a size containing particulate glass having particle size less than about 28 mesh; c. classifying the mixture of inorganic materials having a particle size less than about 28 mesh to remove particles having a size less than about 200 mesh; d. separating the particulate glass fraction from the mixture of inorganic materials having a particle size between about 200 and about 28 mesh by froth flotation to form a float containing predominantly glass, said glass including glasses having the composition of from about 70 to about 73 percent by weight SiO 2 , from about 11 to about 18 percent by weight Na 2 O and from about 7 to about 17 percent by weight CaO, the balance being essentially other metal oxides using a beneficiating amount of at least one amine glass collector reagent, said amine collector reagent containing from about 8 to about 22 carbon atoms in at least one hydrocarbon group attached to a nitrogen atom, at least a portion of said particulate mixture of inorganic materials, exclusive of the particulate glass particles, being non-responsive to the beneficiating action of said amine collector reagent to cause the particulate glass particles to concentrate in the float fraction.

Claim 44

A process for separating glass from a mixture of inorganic materials containing as a part thereof particulate glass having a particle size less than a preselected mesh size which comprises: a. separating materials having a particle size greater than the preselected mesh size from the materials having a particle size less than the preselected mesh size; b. further comminuting the materials having a particle size less than the preselected mesh size to a size containing particulate glass having particle size less than about 28 mesh; c. classifying the mixture of inorganic materials having a particle size less than about 28 mesh to remove particles having a size less than about 200 mesh; d. separating the particulate glass fraction from the mixture of inorganic materials having a particle size between about 200 and about 28 mesh by froth flotation to form a float containing predominantly glass, said glass including glasses having the composition of from about 70 to about 73 percent by weight SiO 2 , from about 11 to about 18 percent by weight Na 2 O and from about 7 to about 17 percent by weight CaO, the balance being essentially other metal oxides using a beneficiating amount of at least one amine glass collector reagent, said amine collector reagent containing from about 8 to about 22 carbon atoms in at least one hydrocarbon group attached to a nitrogen atom, at least a portion of said particulate mixture of inorganic materials, exclusive of the particulate glass particles, being non-responsive to the beneficiating action of said amine collector reagent to cause the particulate glass particles to concentrate in the float fraction.

Claim 45

A process as claimed in claim 39 in which there is present an extender for the amine collector reagent.

Claim 46

A process as claimed in claim 40 in which the extender is present in an amount up to an equivalent of about 3 lbs. per ton of said particulate inorganic materials.

Claim 47

A process as claimed in claim 39 in which a frothing agent is present.

Claim 48

A process as claimed in claim 42 in which the frothing agent is present in an amount up to about 0.5 lb. per ton of said particulate inorganic materials.

Claim 49

A process as claimed in claim 39 in which the preselected mesh size is 3 mesh.

Claim 50

A process as claimed in claim 39 in which the amine collector reagent is selected from the group consisting of primary amines and secondary amines.

Claim 51

A process as claimed in claim 39 in which the amine collector reagent is present in an amount equivalent to about 0.15 to about 2 lbs. per ton of said particulate mixture of inorganic materials.

Claim 52

A process as claimed in claim 39 in which the amine collector reagent is selected from the group consisting of cocoamine, the reaction product of tall oil and diethylene triamine, octylamine, decosaneamine, the reaction product of tall oil and N,N dimethyl aminopropylamine, and tallowamine.

Claim 53

A process as claimed in claim 47 in which the amine collector reagent is present in an amount equivalent to about 0.15 to about 2 lbs. per ton of said particulate mixture of inorganic materials.