US1322816A - Clement l - Google Patents
Clement l Download PDFInfo
- Publication number
- US1322816A US1322816A US1322816DA US1322816A US 1322816 A US1322816 A US 1322816A US 1322816D A US1322816D A US 1322816DA US 1322816 A US1322816 A US 1322816A
- Authority
- US
- United States
- Prior art keywords
- ore
- flotation
- toluidin
- pulp
- clement
- 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 description 34
- 229910052500 inorganic mineral Inorganic materials 0.000 description 18
- 239000011707 mineral Substances 0.000 description 18
- 235000010755 mineral Nutrition 0.000 description 18
- 239000012141 concentrate Substances 0.000 description 10
- 235000008504 concentrate Nutrition 0.000 description 10
- 239000003513 alkali Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 238000011084 recovery Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 2
- 150000001447 alkali salts Chemical class 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 229910052951 chalcopyrite Inorganic materials 0.000 description 2
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000008396 flotation agent Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 238000001275 scanning Auger electron spectroscopy Methods 0.000 description 2
- 239000001187 sodium carbonate Substances 0.000 description 2
- -1 sodium carbonate Chemical class 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
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
-
- 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, (for example, chalcopyrite with a $111- cious gangue), by flotation, and is based upon the discovery that improved results can be obtained by carrying out the flotation operation with the addition to the ore or oughly and uniformly distributed throughout th ore pulp.
- the mixture is then sub jected to a flotation operation as in anordinary Callow cell or in apparatus where the air is incorporated in the ore pulp by mechanical agitation.
- toluidin used may vary somewhat, for example, between one-half pound orless and one and one-half pounds Specification of Letters Patent.
- the froth obtained is readily broken up and the toluidin recovered therefrom so that it is available for use in the treatment of further amounts of ore. That is to. say, the air-- cuit water recovered from the concentrate concentrates obtained and the resulting con-- centrates can be muchmore easily separated by filtration than the common concentrates obtained by the use of oil as the flotation agent.
- the action'of the toluidin may, however, be modified or supplemented by adding ortho .and para-toluidm, carried out 1n a 3 other agents (such as oils or non-oleaginous agents) which promote the flotation .and which do not prejudicially affect the action of the toluidin.
- the toluidin may be introduced into the tube mill in which the ore is being ground, or it may beotherwise introduced into the ore pulp in any suitable way, asjrior instance, by dropping it into the ore pulp before it enters the flotation cell, or by first digesting it in hot water and mixing the product with the ore pulp just before it enters the flotation cell.
- the method of effecting the concentration of-mineralsby flotation which com- 3.
- the method of eflecting the concentration of minerals by flotation which comprises adding to the mineral pulp a small amount of toluidin and sufficient alkali to give the ore pulp a distinct alkaline reaction,
Description
- only to have no free acid present, but to add SAES CLEMENT L. PERKINS, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO METALS RECOVERY COMPANY, OF NEW YORK, N. Y., A CORPORATION OF MAINE.
FLOTATION OF MINERALS.
No Drawing.
To all whom it may concern:
Be it known that I, CLEMENT L. PERKINS, 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 Flotation 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 it appertains to make and use the same.
' This invention relates to the concentration of'minerals, such as sulfid ores and the like, (for example, chalcopyrite with a $111- cious gangue), by flotation, and is based upon the discovery that improved results can be obtained by carrying out the flotation operation with the addition to the ore or oughly and uniformly distributed throughout th ore pulp. The mixture is then sub jected to a flotation operation as in anordinary Callow cell or in apparatus where the air is incorporated in the ore pulp by mechanical agitation. With some ore pulps it may be desirable to add either small amounts of acids or of alkalis, depending upon-the nature of the' ore pulp to be treated, but in general free acid should not be present to any appreciable extent when the toluidin-is added.
" With some ore pulps it is important not suflicient free alkali to give a distinct alkaline reaction to the ore pulp during the flotation operation. Small amounts of caustic alkali, such as sodium hydrate, or of alkali salts, such as sodium carbonate, may thus be added, in regulated amounts, to give the ore pulp the proper degree of alkalinity,
The amount of toluidin used may vary somewhat, for example, between one-half pound orless and one and one-half pounds Specification of Letters Patent.
of the para-toluidin and ortho-tolui- Patented Nov. 25,1919.
Application filed July 2, 1919'. Serial No. 308,321.
per ton of ore (that is, calculated on the weightof the ore and not of the ore pulp).
The invention will be further illustrated by the following specific example: 500 parts byweight of ore was ground in the ball or pebble mill with 250 parts of water, sodium hydroxid in amount equivalent to two pounds per ton of ore, and commercial mixed toluidin equivalent to one pound per ton of ore. The resulting pulp was placed in a Callow pneumatic rougher cell, together .with sufficient water to form a free-flowing pulp, and then subjected to a flotation treatment. The ore treated contained about 1.42 per cent. of copper. The concentrates produced contained about 15.4: percent. of 00p per, and the recovery of the copper was about 87 per cent.- The ore treated was a Utah copper ore.
With ores of the character above referred 'to, the use of alkali is. not necessary, but its use has been found to greatly improve the recovery.
Comparative results obtained With the use of ortho-toluidin or para-toluidin, and mixed toluidin, composed mainly of the manner similar to the specific example given above, gave the following result:
Heads. Conots. Recovery.
Orthotoluidin 1.38 13. 7 7s. 2 Paratoluidin 1.38 19.9 86.4 Mixedtoluidin 1.38 16.5 81.4
It is characteristic of the invention that the froth obtained is readily broken up and the toluidin recovered therefrom so that it is available for use in the treatment of further amounts of ore. That is to. say, the air-- cuit water recovered from the concentrate concentrates obtained and the resulting con-- centrates can be muchmore easily separated by filtration than the common concentrates obtained by the use of oil as the flotation agent. The action'of the toluidin may, however, be modified or supplemented by adding ortho .and para-toluidm, carried out 1n a 3 other agents (such as oils or non-oleaginous agents) which promote the flotation .and which do not prejudicially affect the action of the toluidin.
In applying the toluidin, it may be introduced into the tube mill in which the ore is being ground, or it may beotherwise introduced into the ore pulp in any suitable way, asjrior instance, by dropping it into the ore pulp before it enters the flotation cell, or by first digesting it in hot water and mixing the product with the ore pulp just before it enters the flotation cell.
What I claim is: 1. The method of efle'cting the concentration of minerals by flotation, which com-.
prises adding to the mineral pulp a small amount of toluidin, and subjecting the resulting mixture to a flotation operation; substantially as described.
2. The method of effecting the concentration of-mineralsby flotation, which com- 3. The method of eflecting the concentration of minerals by flotation, which comprises adding to the mineral pulp a small amount of toluidin and sufficient alkali to give the ore pulp a distinct alkaline reaction,
and subjecting the resulting mixture to a flotation operation; substantially as described.
4:. The method of effecting the concentration of minerals by flotation, which comprises adding to the mineral pulp'a small amount of toluidin and of oil, and subjecting the resulting mixture to a flotation operation; substantially as described.
In testimony whereof I aflix my signature.
CLEMENT L. PERKINS.
Publications (1)
Publication Number | Publication Date |
---|---|
US1322816A true US1322816A (en) | 1919-11-25 |
Family
ID=3390274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US1322816D Expired - Lifetime US1322816A (en) | Clement l |
Country Status (1)
Country | Link |
---|---|
US (1) | US1322816A (en) |
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0
- US US1322816D patent/US1322816A/en not_active Expired - Lifetime
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