USRE20666E - Method for the concentration of - Google Patents
Method for the concentration of Download PDFInfo
- Publication number
- USRE20666E USRE20666E US20666DE USRE20666E US RE20666 E USRE20666 E US RE20666E US 20666D E US20666D E US 20666DE US RE20666 E USRE20666 E US RE20666E
- Authority
- US
- United States
- Prior art keywords
- phosphorus
- flotation
- ores
- oxidized
- pentasulfid
- 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
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- 239000007795 chemical reaction product Substances 0.000 description 18
- 238000005188 flotation Methods 0.000 description 16
- CYQAYERJWZKYML-UHFFFAOYSA-N Phosphorus pentasulfide Chemical compound S1P(S2)(=S)SP3(=S)SP1(=S)SP2(=S)S3 CYQAYERJWZKYML-UHFFFAOYSA-N 0.000 description 13
- 229910052500 inorganic mineral Inorganic materials 0.000 description 13
- 239000011707 mineral Substances 0.000 description 13
- -1 amino compound Chemical class 0.000 description 12
- 239000011574 phosphorus Substances 0.000 description 12
- 229910052698 phosphorus Inorganic materials 0.000 description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 11
- 238000009291 froth flotation Methods 0.000 description 10
- LRHPLDYGYMQRHN-UHFFFAOYSA-N n-butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 10
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-Naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 5
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000004115 Sodium Silicate Substances 0.000 description 3
- 230000001476 alcoholic Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- 229910052911 sodium silicate Inorganic materials 0.000 description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N Oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- RNVCVTLRINQCPJ-UHFFFAOYSA-N o-toluidine Chemical compound CC1=CC=CC=C1N RNVCVTLRINQCPJ-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000008396 flotation agent Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 235000015243 ice cream Nutrition 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 229910000460 iron oxide Inorganic materials 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001590 oxidative Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 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
- B03D1/014—Organic compounds containing phosphorus
-
- 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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
Definitions
- This invention relates to the concentration of ores by flotation and is particularly applicable to the treatment of those ores in which the valuable minerals occur entirely or in a partially oxidized state.
- most of the efforts to float oxidizedores have included a preliminary step designed to place a sulfid film on the particles of oxidized minerals, followed by a similar flotation operation to that practiced on sulfid ores.
- Sulfldizing operations are objectionable on many ores, because they tend to reduce silver extraction if enough sulfidizing agent is .added to insure high recovery of the base metals and a clean concentrate.
- the consumption of the sulfidizing agent on ores containing very much hydrated iron oxide is very high.
- the present invention is based on the discovery that a class of compounds formed by the reaction of amino compounds with pho'sphorus pentasulfld or with phosphorus pentasulfid and an alcohol are effective flotation agents, not only for the sulfid minerals, but also for the oxidized miner- Phosphorus enters into and forms a part of such reaction products. While all the reconstructed amino compounds tried have shown the ability to float oxidized minerals, I have found the reaction products of phosphorus pentasulfid or phosphorus pentasulfid and an alcohol with aniline, orthotoluidine and alpha naphthylamine respectively to give most satisfactory results.
- reaction products of amino compounds with phosphorus pentasulfid are solids.
- the reagents In flotation operations it is advantageous to have the reagents in a liquid condition in order that they may easily and accurately be added to the flotation pulp. Consequently it becomes desirable to dissolve these solid reaction products in an organic solvent. In some cases it may be preferable to dissolve the amino compound in the solvent before reacting it with phosphorus pentasulfid. It is also possible to obtain a liquid product by reacting a large excess of a liquid amino compound with phosphorus pentasulfid.
- reaction products of amino compounds, phosphorus pentasulfid and an alcohol are sumciently fluid for use as formed.
- Any of the alcohols may be used. I have found amyl and butyl to give particularly satisfactory results.
- Any amino compound may be used.
- a mixture of phosphorus and sulfur may be I used instead of phosphorus pentasulfid.
- Percent g Per- Per- 5 recoveries Gold Silver cent cent by Inwt Pb Fe sol Au Ag Pb Oz./to1
- It has desirable frothing by froth flotation which comprises subjecting the ore in the form of a pulp to a flotation operation in the presence of the reaction product of an alcoholic solution of alpha naphthylamine and phosphorus pentasulfld.
- the process of concentrating oxidized ores by froth flotation which comprises subjecting the ore in the form of a pulp to a flotation operation in the presence of the reaction product of an alcoholic solution of an amino compound and phosphorus pentasulfld.
- An agent for use in flotation comprising the reaction product of an alcoholic solution of alpha naphthylamine and phosphorus pentasulfid.
- the process of concentrating oxidized ores by froth flotation which comprises subjecting the 9.
- the process of concentrating oxidized ores by froth flotation which comprises subjecting the ore in the form of a pulp to a flotation operation in the presence of a soluble silicate and the reaction product of an alcohol, an amino compound and phosphorus pentasulfld.
- the process of concentrating ores 'by froth flotation which comprises subjecting the ore in the form of a pulp to a flotation operation in the presence of sodium silicate, and in the presence of the reaction product of an alcohol including butyl alcohol, an aromatic amino compound and phosphorus pentasulfld.
- the process of concentrating oxidized ores by froth flotation which comprises subjecting the ore in the form of a pulp to a flotation operation in the presence of a soluble silicate and the reaction product of an alcohol, alpha naphthylamine and phosphorus pentasulfld.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
als of gold, silver, lead and copper.
Reissued Mar. 1, 1938 UNITED STATES PATENT OFFICE METHOD FOR THE CONCENTRATION OF ORES George H. Wigton, Eureka, Utah Serial No. 567,289
14 Claims.
This invention relates to the concentration of ores by flotation and is particularly applicable to the treatment of those ores in which the valuable minerals occur entirely or in a partially oxidized state. Heretofore, most of the efforts to float oxidizedores have included a preliminary step designed to place a sulfid film on the particles of oxidized minerals, followed by a similar flotation operation to that practiced on sulfid ores. Sulfldizing operations are objectionable on many ores, because they tend to reduce silver extraction if enough sulfidizing agent is .added to insure high recovery of the base metals and a clean concentrate. Also, the consumption of the sulfidizing agent on ores containing very much hydrated iron oxide is very high. Efiorts to float the oxidizing minerals without sulfidizing, by using a reagent with a strong collecting action, like oleic acid, result in flotation so non-selective that good extraction and high grade concentrate are impossible to produce simultaneously.
The present invention is based on the discovery that a class of compounds formed by the reaction of amino compounds with pho'sphorus pentasulfld or with phosphorus pentasulfid and an alcohol are effective flotation agents, not only for the sulfid minerals, but also for the oxidized miner- Phosphorus enters into and forms a part of such reaction products. While all the reconstructed amino compounds tried have shown the ability to float oxidized minerals, I have found the reaction products of phosphorus pentasulfid or phosphorus pentasulfid and an alcohol with aniline, orthotoluidine and alpha naphthylamine respectively to give most satisfactory results.
The reaction products of amino compounds with phosphorus pentasulfid are solids. In flotation operations it is advantageous to have the reagents in a liquid condition in order that they may easily and accurately be added to the flotation pulp. Consequently it becomes desirable to dissolve these solid reaction products in an organic solvent. In some cases it may be preferable to dissolve the amino compound in the solvent before reacting it with phosphorus pentasulfid. It is also possible to obtain a liquid product by reacting a large excess of a liquid amino compound with phosphorus pentasulfid.
The reaction products of phosphorus pentasulfid and amino compounds are describedand specifically claimed in my co-pending application Serial No. 375,892, filed July 3, 1929.
The reaction products of amino compounds, phosphorus pentasulfid and an alcohol are sumciently fluid for use as formed.
Any of the alcohols may be used. I have found amyl and butyl to give particularly satisfactory results.
Any amino compound may be used.
I have found aniline, ortho toluidine and alpha naphthylamine to give a satisfactory product.
A mixture of phosphorus and sulfur may be I used instead of phosphorus pentasulfid.
The reaction product of alpha naphthylamine, phosphorus pentasulfid and butyl alcohol gives particularly good results on the orewith which I have been working. properties, as well as marked collecting power for oxidized minerals.
Following is a description of one method used in making a satisfactory compound for the purpose of floating oxidized minerals: 17.4 lb. of normal butyl alcohol, and 21.75 lb. alpha naphthylamine were placed in a 10-gal1on ice-cream freezer and the mixture agitated until solution was complete. Then 10.85 lb. phosphorus pentasulfid was gradually added, while cold water was allowed to circulate around the revolving inside cylinder. v Agitation was continued for three hours after the last of the phosphorus pentasulfid was added, care being taken to keep the mixture cold at all times. The resulting product was a semi-transparent, brown, viscous liquid, and
had a marked ability to float oxidized minerals, as well as sulfid minerals.
To illustrate the action of this compound, results are given of a test on a mixture of oxidized ores from the Tintic district, Utah. The ore was ground so that it all passed a sixty-five mesh screen; 0.4 lb. per ton of ore of the compound was added along with 0.5 lb. sodium silicate (water glass) per ton of ore, and a heavy froth removed. This froth contained practically all the sulfid mineral and much of the oxidized mineral. After this froth had overflowed, an additional 0.2 lb. of the compound and 0.25 lb. sodium silicate per ton of ore was added, and a second froth removed. It is desirable to add the reagent in more than one stage, as any sulfid mineral seems to prevent the complete flotation of the oxidized mineral with only one, addition of reagent. Following are the results obtained:
Percent g Per- Per- 5 recoveries Gold Silver cent cent by Inwt Pb Fe sol Au Ag Pb Oz./to1| Oz./t01i Ore 100. 0 099 I 17. 02 20. 70 4. 6 55. 7 100 100 100 Conct- 44. 6 .18 3-1. 3 43. 7 2. 8 l8. 2 B0. 8 89. 9 94. 1 Tail 55. 4 .035 3. l 2. 2 5 9 19.2 10. l 5.9
It has desirable frothing by froth flotation which comprises subjecting the ore in the form of a pulp to a flotation operation in the presence of the reaction product of an alcoholic solution of alpha naphthylamine and phosphorus pentasulfld.
'2. The process of concentrating oxidized ores by froth flotation which comprises subjecting the ore in the form of a pulp to a flotation operation in the presence of the reaction product of an alcoholic solution of an amino compound and phosphorus pentasulfld.
3. An agent for use in flotation comprising the reaction product of an alcoholic solution of alpha naphthylamine and phosphorus pentasulfid. v
4. The process of concentrating oxidized ores by froth flotation which comprises subjecting the ore in the form of a pulp to a flotation operation in the presence of the reaction product of an alcohol, an amino compound and phosphorus pentasulfld.
5. The process of concentrating oxidized ores by froth flotation which comprises subjecting the ore in the form of a pulp to a flotation operation in the presence of the reaction product of analcohol, an aromatic amino compound and phosphorus pentasulfld'. I
6. The process of concentrating oxidized ores by froth flotation which comprises subjecting the ore inthe form of a pulp to a flotation operation in the presence of the reaction product of an alcohol. alpha naphthylamineand phosphorus pentasulfld. 1
7. The process of concentrating oxidized ores by froth flotation which comprises subjecting the 9. The process of concentrating oxidized ores by froth flotation which comprises subjecting the ore in the form of a pulp to a flotation operation in the presence of a soluble silicate and the reaction product of an alcohol, an amino compound and phosphorus pentasulfld.
10. The process of concentrating ores 'by froth flotation which comprises subjecting the ore in the form of a pulp to a flotation operation in the presence of sodium silicate, and in the presence of the reaction product of an alcohol including butyl alcohol, an aromatic amino compound and phosphorus pentasulfld.
11. The process of concentrating oxidized ores by froth flotation which comprises subjecting the ore in the form of a pulp to a flotation operation in the presence of a soluble silicate and the reaction product of an alcohol, alpha naphthylamine and phosphorus pentasulfld.
12. The process of concentrating ores by froth flotation which comprises subjecting the orev in the form of a pulp to a flotation operation in the presence of a soluble silicate and, in the presence of successivestage additions of the. reaction product of an alcohol in part at least butyl alcohol,
an amino compound and phosphorus pentasulfld.
13. The process of claim 9 in which the alcohol x is at least partly butyl alcohol, the alcohol and the amino compound are mixed before the phosphorus pentasulfld is added and the reaction product is agitated for a number ofv hours after the pentasulfld is added and while being agitated is held at a low temperature, substantially as described.
- 14. The process of concentrating ores by froth GEORGE H. wra'ron.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| USRE20666E true USRE20666E (en) | 1938-03-01 |
Family
ID=2085791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US20666D Expired USRE20666E (en) | Method for the concentration of |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | USRE20666E (en) |
-
0
- US US20666D patent/USRE20666E/en not_active Expired
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