US1659396A - Process of concentrating ores and minerals by flotation - Google Patents
Process of concentrating ores and minerals by flotation Download PDFInfo
- Publication number
- US1659396A US1659396A US144193A US14419326A US1659396A US 1659396 A US1659396 A US 1659396A US 144193 A US144193 A US 144193A US 14419326 A US14419326 A US 14419326A US 1659396 A US1659396 A US 1659396A
- Authority
- US
- United States
- Prior art keywords
- flotation
- minerals
- trithio
- ores
- carbonate
- 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 18
- 238000000034 method Methods 0.000 title description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 title description 7
- 239000011707 mineral Substances 0.000 title description 7
- 239000010949 copper Substances 0.000 description 15
- 229910052802 copper Inorganic materials 0.000 description 13
- 239000003153 chemical reaction reagent Substances 0.000 description 7
- 239000008396 flotation agent Substances 0.000 description 7
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 6
- NRQCYLXIKLRTQE-UHFFFAOYSA-N bis(ethylsulfanyl)methanethione Chemical compound CCSC(=S)SCC NRQCYLXIKLRTQE-UHFFFAOYSA-N 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 6
- 235000010755 mineral Nutrition 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- HIZCIEIDIFGZSS-UHFFFAOYSA-L trithiocarbonate Chemical class [S-]C([S-])=S HIZCIEIDIFGZSS-UHFFFAOYSA-L 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 4
- HIZCIEIDIFGZSS-UHFFFAOYSA-N carbonotrithioic acid Chemical class SC(S)=S HIZCIEIDIFGZSS-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000009291 froth flotation Methods 0.000 description 3
- 125000000962 organic group Chemical group 0.000 description 3
- OQQUTVSCNMFMID-UHFFFAOYSA-N s-(benzoyldisulfanyl) benzenecarbothioate Chemical group C=1C=CC=CC=1C(=O)SSSC(=O)C1=CC=CC=C1 OQQUTVSCNMFMID-UHFFFAOYSA-N 0.000 description 3
- 239000012989 trithiocarbonate Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- -1 Diethyl thiol ester Chemical class 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- RDHPKYGYEGBMSE-UHFFFAOYSA-N bromoethane Chemical compound CCBr RDHPKYGYEGBMSE-UHFFFAOYSA-N 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- WKHRMCFJMYQFHO-UHFFFAOYSA-N potassium;carbonotrithioic acid Chemical compound [K+].SC(S)=S WKHRMCFJMYQFHO-UHFFFAOYSA-N 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000512668 Eunectes Species 0.000 description 1
- 241001092591 Flota Species 0.000 description 1
- 235000019502 Orange oil Nutrition 0.000 description 1
- 125000002252 acyl group Chemical group 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
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 1
- OCHIDBMJEFPMFG-UHFFFAOYSA-N dithiiran-3-one Chemical compound O=C1SS1 OCHIDBMJEFPMFG-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 239000010502 orange oil Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229940116411 terpineol Drugs 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
- 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 recovery of valuable ores and minerals by flotation, and comprises more particularly the concentration of such ores and minerals by means of a certain class of organic flotation agents.
- R and R are orgamc groups.
- R and B may represent the same or different organic groups.
- a specific example of a derivative in which R and R are alkyl groups is diethyl ester of trithio carbonic acid having the following formula:
- SCHgCOO 02115 is an example of a derivative in which R and R are acyl groups. Diethyl thiol ester Application filed October 25, 1926. Serial No. 144,193.
- diethyl trithio carbonate can be made by dissolving 150 grams of potassium hydroxide in 250 cc. water, and saturating this solution with hydrogen sulfide. To this solution is added 150 grams of potasslum hydroxideand, when all is dissolved. 250 grams of carbon bisulfide are added and the mixture agitated vigorously until all of the carbon disulfide goes into solution. The solution is washed once with 300 cc. of alcohol.
- This compound may loo-used as a flotation reagent in the following manner: 500 grams of minus 29 mesh Phelps-Dodge Corporation Copper Queen ore are ground for 20 minutes in a pebble mill with 500 cc. of water, 0.6 grams of lime and 0.025 grams of diethyl trithio carbonate. The lime and diethyl trithio carbonate are in the proportions of 2,4 lbs. and 0.10 lb. respectively per ton of ore.
- the pulp from the pebble mill is transferred to a J anney laboratory flotation machine and a frothing agent (terpineol or pine oil) added. The pulp is diluted to about two liters and a rougher concentrate removed for 10 minutes, water being added as needed. The following results were obtained:
- the flotation reagents forming part of the present invention do not decompose in an acid solution, and are therefore suitable for use in acid flotation circuits. .
- diethyl trithio carbonate in the proportion of 0.15 lbs. per ton of ore in a circuit containing 7.0 lbs. of sulfuric acid per ton of ore, the following results were obtained:
- Dibenzoyl trithio carbonate can be made conveniently by treating potassium trithio carbonate in benzene suspension with benzoyl chloride, removing the heat of reaction by cooling. After filtration from the potassium chloride and evaporation of the solvent, dibenzoyl trithio carbonate is obtained as a yellowish orange oil.
- Diethyl thiol ester of thioncarbonyl disulfide may be made by treating the mono ethyl ester of trithio carbonic acid (Chancelpreferably bericht fiir Chemie 1851, p. 513) with iodine. The orange brown oil which is formed, is washed with water and then dried with calcium chloride.
- the present process is not limit- 7 ed to the specific substances or details of procedure mentioned, but includes generally processes of recovering values from ores by flotation in which the flotation agents are members of the class of compounds described. For instance, it has been pointed out as being desirable to add a frothing agent in the specific examples noted. However, where the flotation agent itself has sutficient frothing power, the frothing agent may be omitted.
- R and R are organic groups.
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
Patented Feb. 14, 1928.
UNITED STATES PATENT OFFICE;
WILLIAM A. DOUGLASS, OF PENNS GROVE, NEW JERSEY, ASSIGNOR TO E. I. DU IONl- DE NEMOURS & COMPANY, OF WILMINGTON, DELAWARE, A CORPORATION OF DEL- AWARE.
PROCESS OIE GONCENTRATING ORES AND MINERALS BY FLOTA'IION.
N Drawing.
This invention relates to the recovery of valuable ores and minerals by flotation, and comprises more particularly the concentration of such ores and minerals by means of a certain class of organic flotation agents.
It is one of the objects of the present invention to carry out flotation processes in an eficient manner by using as the flotation agent one of a class of organic compounds having highly selective properties when so used. It is-a further object to carry out the flotation processes by using flotation agents which are suitable for use in neutral, alkaline or acid flotation circuits without decoinplosition of the flotation agents.
ave discovered that these and other ob jects may be accomplished by using in a flotation process organic derivatives of trithio carbonic acid as the flotation agents. These compounds are characterized by having the following general structural formula:
where R and R are orgamc groups. R and B may represent the same or different organic groups.
A specific example of a derivative in which R and R are alkyl groups is diethyl ester of trithio carbonic acid having the following formula:
' s,-o,n
SCaHt somooocm.
Dibenzoyl trithio carbonate having the formula:
SCHgCOO 02115 is an example of a derivative in which R and R are acyl groups. Diethyl thiol ester Application filed October 25, 1926. Serial No. 144,193.
of thion carbonyl disulfide having the following formula:
S=(l]-SOgH5 18 still another type of derivative of trithio carbonate, wherein Ris an alkyl group and R is another trithio carbonate group having the following formula:
S- SJ in which X represents an organic group such as an alkyl.
The various derivatives of trithio carbonic acid may be made in any suitable manner. For instance, diethyl trithio carbonate can be made by dissolving 150 grams of potassium hydroxide in 250 cc. water, and saturating this solution with hydrogen sulfide. To this solution is added 150 grams of potasslum hydroxideand, when all is dissolved. 250 grams of carbon bisulfide are added and the mixture agitated vigorously until all of the carbon disulfide goes into solution. The solution is washed once with 300 cc. of alcohol. To the water layer containing potassium trithio carbonate, 300 grams of ethyl bromide are slowly added with agitation and coolin The reaction product is washed with water and the excess ethyl bromide removed by bubbling a current of air through the liquid. The resulting orange red liquid is pure diethyl trithio carbonate.
This compound may loo-used as a flotation reagent in the following manner: 500 grams of minus 29 mesh Phelps-Dodge Corporation Copper Queen ore are ground for 20 minutes in a pebble mill with 500 cc. of water, 0.6 grams of lime and 0.025 grams of diethyl trithio carbonate. The lime and diethyl trithio carbonate are in the proportions of 2,4 lbs. and 0.10 lb. respectively per ton of ore. The pulp from the pebble mill is transferred to a J anney laboratory flotation machine and a frothing agent (terpineol or pine oil) added. The pulp is diluted to about two liters and a rougher concentrate removed for 10 minutes, water being added as needed. The following results were obtained:
% Cu in concentrate=7 .25.
% Cu in tailings=.22.
Extraction 87.6
Using Anaconda Table Tailings in a neutral circuit with diethyl trithio carbonate as the flotation reagent in the proportion of 0.15 lbs. per ton of ore, the following results were obtained:
% Cu in heads=1.88.
% Cu in concentrate 8.84:.
% Cu in tailings=0.18.
Total Cu recovered=92.3%.
The flotation reagents forming part of the present invention do not decompose in an acid solution, and are therefore suitable for use in acid flotation circuits. .Using as the flotation reagent diethyl trithio carbonate in the proportion of 0.15 lbs. per ton of ore in a circuit containing 7.0 lbs. of sulfuric acid per ton of ore, the following results were obtained:
% Cu in heads=l.88.
% Cu in concentrate=9.68.
% Cu in tailings=0.085.
Total Cu recovered=96.3%.
Dibenzoyl trithio carbonate can be made conveniently by treating potassium trithio carbonate in benzene suspension with benzoyl chloride, removing the heat of reaction by cooling. After filtration from the potassium chloride and evaporation of the solvent, dibenzoyl trithio carbonate is obtained as a yellowish orange oil.
When tested as a flotation reagent using an alkaline circuit according to the process described, the following results were obtained:
% Cu in concentrate=6.67.
% Cu in tailings=.20.
Extraction=89.2%.
Diethyl thiol ester of thioncarbonyl disulfide may be made by treating the mono ethyl ester of trithio carbonic acid (Chancel Jahres bericht fiir Chemie 1851, p. 513) with iodine. The orange brown oil which is formed, is washed with water and then dried with calcium chloride.
When tested as a flotation reagent using an alkaline circuit according to the process described, the following results were obtained:
% Cu in concentrate=6.60.
% Cu in tailings=0.24.
E xtraction=86.9%.
In illustrating the present process, reference has been made specifically to certain ores and reagents, and to various specific conditions of operation. It will be understood that the present process is not limit- 7 ed to the specific substances or details of procedure mentioned, but includes generally processes of recovering values from ores by flotation in which the flotation agents are members of the class of compounds described. For instance, it has been pointed out as being desirable to add a frothing agent in the specific examples noted. However, where the flotation agent itself has sutficient frothing power, the frothing agent may be omitted.
Any suitable modifications and changes may be made without departing from the spirit and scope of the invention.
I claim:
1. In the process of concentratin ores and minerals by flotation the step which comprises subjecting the ore in the form of a pulp to a froth flotation operation in the presence of an organic derivative of trithio carbonate.
2. In the process of concentrating ores and minerals by flotation, the step which comprises subjecting the ore in the form of a pulp to a froth flotation operation in the presence of an organic derivative of trithio carbonate having the following structural formula:
where R and R are organic groups.
3. In the process of concentrating ores and minerals by flotation, the step which comprises subjecting the ore in the form of 1 a pulp to a froth flotation operation in the presence of an organic derivative of trithio carbonate having the following structural formula:
SR =C/ in which R is an alkyl group and R is an
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US144193A US1659396A (en) | 1926-10-25 | 1926-10-25 | Process of concentrating ores and minerals by flotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US144193A US1659396A (en) | 1926-10-25 | 1926-10-25 | Process of concentrating ores and minerals by flotation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1659396A true US1659396A (en) | 1928-02-14 |
Family
ID=22507496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US144193A Expired - Lifetime US1659396A (en) | 1926-10-25 | 1926-10-25 | Process of concentrating ores and minerals by flotation |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1659396A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2634291A (en) * | 1951-11-13 | 1953-04-07 | Phillips Petroleum Co | Primary and secondary alkyl sulfenyl trithiocarbonates |
| US2676129A (en) * | 1951-06-12 | 1954-04-20 | Stauffer Chemical Co | Aliphatic trithiocarbonate nematocides |
| US3901450A (en) * | 1969-11-03 | 1975-08-26 | David Weston | Flotation with xanthate |
| US4316797A (en) * | 1980-09-10 | 1982-02-23 | Phillips Petroleum Company | Flotation agent and process |
| US4341715A (en) * | 1980-10-06 | 1982-07-27 | Phillips Petroleum Company | S-Allyl-S'-n-butyl-trithiocarbonate |
| US4425230A (en) | 1982-02-16 | 1984-01-10 | Oreprep Chemicals, Inc. | Separation of molybdenite from its mixture with other sulfide ores |
| US4518492A (en) * | 1984-06-15 | 1985-05-21 | Phillips Petroleum Company | Ore flotation with combined collectors |
| US4594151A (en) * | 1982-10-13 | 1986-06-10 | Societe Nationale Elf Aquitaine (Production) | Flotation of minerals |
-
1926
- 1926-10-25 US US144193A patent/US1659396A/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2676129A (en) * | 1951-06-12 | 1954-04-20 | Stauffer Chemical Co | Aliphatic trithiocarbonate nematocides |
| US2634291A (en) * | 1951-11-13 | 1953-04-07 | Phillips Petroleum Co | Primary and secondary alkyl sulfenyl trithiocarbonates |
| US3901450A (en) * | 1969-11-03 | 1975-08-26 | David Weston | Flotation with xanthate |
| US4316797A (en) * | 1980-09-10 | 1982-02-23 | Phillips Petroleum Company | Flotation agent and process |
| US4341715A (en) * | 1980-10-06 | 1982-07-27 | Phillips Petroleum Company | S-Allyl-S'-n-butyl-trithiocarbonate |
| US4425230A (en) | 1982-02-16 | 1984-01-10 | Oreprep Chemicals, Inc. | Separation of molybdenite from its mixture with other sulfide ores |
| US4594151A (en) * | 1982-10-13 | 1986-06-10 | Societe Nationale Elf Aquitaine (Production) | Flotation of minerals |
| US4518492A (en) * | 1984-06-15 | 1985-05-21 | Phillips Petroleum Company | Ore flotation with combined collectors |
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