US1370367A - Flotation of minerals - Google Patents
Flotation of minerals Download PDFInfo
- Publication number
- US1370367A US1370367A US393608A US39360820A US1370367A US 1370367 A US1370367 A US 1370367A US 393608 A US393608 A US 393608A US 39360820 A US39360820 A US 39360820A US 1370367 A US1370367 A US 1370367A
- Authority
- US
- United States
- Prior art keywords
- flotation
- thio
- ore
- pulp
- minerals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005188 flotation Methods 0.000 title description 15
- 229910052500 inorganic mineral Inorganic materials 0.000 title description 14
- 239000011707 mineral Substances 0.000 title description 14
- 235000010755 mineral Nutrition 0.000 description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- 239000003513 alkali Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 3
- 239000008396 flotation agent Substances 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- SQYNKIJPMDEDEG-UHFFFAOYSA-N paraldehyde Chemical compound CC1OC(C)OC(C)O1 SQYNKIJPMDEDEG-UHFFFAOYSA-N 0.000 description 2
- 229960003868 paraldehyde Drugs 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 1
- 159000000011 group IA salts Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- -1 sodium carbonate Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229940116411 terpineol Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/002—Inorganic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; Specified applications
- B03D2203/02—Ores
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S209/00—Classifying, separating, and assorting solids
- Y10S209/901—Froth flotation; copper
Definitions
- This invention relates to the concentration of minerals, such as sulfid ores and the like, by flotation.
- the invention is based upon the discovery that the flotation o eration can, in many cases, be improved y the addition to the ore or mineral pulp of a thio-aldehyde compound, such as is produced, for example, by passing hydrogen sulfid into aqueous acetaldehyde or paraldehyde made strongly acid with hydrochloric acid.
- a thio-aldehyde compound such as is produced, for example, by passing hydrogen sulfid into aqueous acetaldehyde or paraldehyde made strongly acid with hydrochloric acid.
- Such thioaldehyde compounds have a marked sel'ec-' tive or collecting or mineral-modifying action, and materially promote the flotation of the mineral.
- the thio-aldehyde compounds can be produced in any suitable manner, for example, from acetaldehyde or paraldehyde by passing hydrogen sulfid into a strongly acid aqueous mixture.
- the resulting solid mass of crystals can be recrystalized, or used directly without further crystallization.
- the thio-aldehyde compound can be incorporated with the ore or mineral pulp in any suitable manner which will insure ItS uniform incorporation and dissemination throughout the ulp. It may thus be incorporated by a ding to the grinding mill, in which the ore is ground, or it can be first dissolved in a solvent, and added in the form of the resulting solution, for example, in anilin.
- the flotation operation can be carried out in any suitable apparatus, such as an ordinary Callow cell, or in apparatus where the air is incorporated in the ore pulp by mechanical agitation.
- alkali which may be suflioient in amount to give to the ore pulp a distinct alkaline reaction.
- alkalis it is desirable to give them an appreciable time of contact with the ore pulp before suhmcting the latter to flotation.
- the alkalis can thus be added with advan- Patented Mar. 1, 1921.
- the alkali maybe caustic alkali, such as sodium hydrate, or an alkaline salt, such as sodium carbonate, or even lime or calcium oxld or hydrate can be used.
- the amount of the thio-aldehyde compound added can vary somewhat, and may be as little as one-half pound per ton of ore, that is, calculated on the weight of the ore and not of the ore pulp. Larger amounts may, however, be used, as well as even smaller amounts in some cases.
- Example 1 500 parts by weight of Utah Copper Qompanys ore was ground in a pebble m ll with 250 parts of water, caustic soda equivalent to two pounds per ton of dry ore, and thio-aldehyde compound equivalent to one-half pound per ton.
- the ground pulp was diluted and subjected to flotatlonin a Callow rougher cell. Aeration of the pulp was continued until the concentration of the sulfid mineral practically ceased. A satisfactory concentrate and high recovery were obtained.
- Example 2 The treatment was similar to that of example 1 except that the thio-aldehyde compound was dissolved in anilin in amount equivalent to about one pound per ton, and the resultin solution was added to the ore pulp in the (/allow cell.
- the amount of froth produced, using the small amounts of thioaldehyde compound above referred to, may be insuflicient for satisfactory flotation.
- this action can be supplemented by the addition of a small amount of a flotation agent having good frothing qualities, and which will cooperate with the thio-aldehyde compound in giving the desired frothing, as well as the selective or collecting, properties.
- having good frothing qualities may be mentioned terpineol, pine oil, etc.
- the thioaldehyde compounds may thus be used in conjunction with flotation agents which themselves have both frothing and collecting properties, for example, with many of the common flotation oils, etc.
- the method of effecting the concentration of minerals by flotation which comprises adding to the mineral pulp a small amount of a thio-aldehyde compound, and subjecting the resulting mixture to a flotation-o eration; substantially as described.
- the method of effecting the concentration of copper sulfid ores by flotation which comprises addin to the mineral pulp a small amount 0 an alkali and a small amount of a thio-aldehyde compound, and subjecting the resulting mixture to a flotation operation; substantially as described.
- the method of effecting the concentration of copper sulfid ores by flotation which comprises adding to the mineral pulp a small amount of an alkali, a small amount of a flotation agent deficient in frothing properties, and a small amount of a thioaldehyde compound, and subjecting the resulting mixture to a flotation operation; substantially as described.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Description
UNITED STATES PATENT OFFICE.
RALPH E. SAYRE, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR '10 METALS RECOVERY COMPANY, 01 NEW YORK, N. Y., A CORPORATION OF MAINE.
ILO'IA'IION OF MINERALS.
llo Drawing.
To all whom it may concern.
Be it known that I, RALPH E. Serum, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny, State of Pennsylvania, have invented certain new and useful Improvements in the Flotat1on of Minerals; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which 1t appertains to make and use the same.
This invention relates to the concentration of minerals, such as sulfid ores and the like, by flotation.
The invention is based upon the discovery that the flotation o eration can, in many cases, be improved y the addition to the ore or mineral pulp of a thio-aldehyde compound, such as is produced, for example, by passing hydrogen sulfid into aqueous acetaldehyde or paraldehyde made strongly acid with hydrochloric acid. Such thioaldehyde compounds have a marked sel'ec-' tive or collecting or mineral-modifying action, and materially promote the flotation of the mineral.
The thio-aldehyde compounds can be produced in any suitable manner, for example, from acetaldehyde or paraldehyde by passing hydrogen sulfid into a strongly acid aqueous mixture. The resulting solid mass of crystals can be recrystalized, or used directly without further crystallization.
The thio-aldehyde compound can be incorporated with the ore or mineral pulp in any suitable manner which will insure ItS uniform incorporation and dissemination throughout the ulp. It may thus be incorporated by a ding to the grinding mill, in which the ore is ground, or it can be first dissolved in a solvent, and added in the form of the resulting solution, for example, in anilin. The flotation operation can be carried out in any suitable apparatus, such as an ordinary Callow cell, or in apparatus where the air is incorporated in the ore pulp by mechanical agitation.
It is of advantage in many cases, as with certain copper ores, to add to the ore pulp a small amount of alkali, which may be suflioient in amount to give to the ore pulp a distinct alkaline reaction. When alkalis are used, it is desirable to give them an appreciable time of contact with the ore pulp before suhmcting the latter to flotation.
Specification of Letters Patent.
The alkalis can thus be added with advan- Patented Mar. 1, 1921.
Application filed July 2, 1920. Serial No. 393,608.
tage in the grinding mill so that they will be present during the grinding operation.
The alkali maybe caustic alkali, such as sodium hydrate, or an alkaline salt, such as sodium carbonate, or even lime or calcium oxld or hydrate can be used.
The amount of the thio-aldehyde compound added can vary somewhat, and may be as little as one-half pound per ton of ore, that is, calculated on the weight of the ore and not of the ore pulp. Larger amounts may, however, be used, as well as even smaller amounts in some cases.
I The invention will be further illustrated by the following specific examples of tests made upon a copper sulfid ore:
Example 1 :500 parts by weight of Utah Copper Qompanys ore was ground in a pebble m ll with 250 parts of water, caustic soda equivalent to two pounds per ton of dry ore, and thio-aldehyde compound equivalent to one-half pound per ton. The ground pulp was diluted and subjected to flotatlonin a Callow rougher cell. Aeration of the pulp was continued until the concentration of the sulfid mineral practically ceased. A satisfactory concentrate and high recovery were obtained.
Example 2 :-The treatment was similar to that of example 1 except that the thio-aldehyde compound was dissolved in anilin in amount equivalent to about one pound per ton, and the resultin solution was added to the ore pulp in the (/allow cell.
\Vhile the thio-aldehyde compounds pose sess frothing qualities, the amount of froth produced, using the small amounts of thioaldehyde compound above referred to, may be insuflicient for satisfactory flotation. Instead of increasing the amount of thio-aldehyde compound, this action can be supplemented by the addition of a small amount of a flotation agent having good frothing qualities, and which will cooperate with the thio-aldehyde compound in giving the desired frothing, as well as the selective or collecting, properties. Among such agents, having good frothing qualities may be mentioned terpineol, pine oil, etc. The thioaldehyde compounds may thus be used in conjunction with flotation agents which themselves have both frothing and collecting properties, for example, with many of the common flotation oils, etc.
I claim:
1. The method of effecting the concentration of minerals by flotation, Which comprises adding to the mineral pulp a small amount of a thio-aldehyde compound, and subjecting the resulting mixture to a flotation-o eration; substantially as described.
2. he method of effecting the concentration of minerals by flotation, which comprises adding to the mineral pulp a small amount of a selective or collecting or mineral-modifying agent, deficient in frothing qualities, together with a small'amount of a thio-aldehyde compound, and subjecting the resulting mixture to a flotation operation; substantially as described.
3. The method of effecting the concentration of copper sulfid ores by flotation, which comprises addin to the mineral pulp a small amount 0 an alkali and a small amount of a thio-aldehyde compound, and subjecting the resulting mixture to a flotation operation; substantially as described.
4. The method of effecting the concentration of copper sulfid ores by flotation, which comprises adding to the mineral pulp a small amount of an alkali, a small amount of a flotation agent deficient in frothing properties, and a small amount of a thioaldehyde compound, and subjecting the resulting mixture to a flotation operation; substantially as described.
In testimony whereof I afiix my si ature.
RALPH E. SA RE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US393608A US1370367A (en) | 1920-07-02 | 1920-07-02 | Flotation of minerals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US393608A US1370367A (en) | 1920-07-02 | 1920-07-02 | Flotation of minerals |
Publications (1)
Publication Number | Publication Date |
---|---|
US1370367A true US1370367A (en) | 1921-03-01 |
Family
ID=23555466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US393608A Expired - Lifetime US1370367A (en) | 1920-07-02 | 1920-07-02 | Flotation of minerals |
Country Status (1)
Country | Link |
---|---|
US (1) | US1370367A (en) |
-
1920
- 1920-07-02 US US393608A patent/US1370367A/en not_active Expired - Lifetime
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