US1652099A - Process of concentrating ores and minerals by flotation - Google Patents
Process of concentrating ores and minerals by flotation Download PDFInfo
- Publication number
- US1652099A US1652099A US144194A US14419426A US1652099A US 1652099 A US1652099 A US 1652099A US 144194 A US144194 A US 144194A US 14419426 A US14419426 A US 14419426A US 1652099 A US1652099 A US 1652099A
- Authority
- US
- United States
- Prior art keywords
- flotation
- minerals
- ores
- ore
- ethyl
- 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 21
- 238000000034 method Methods 0.000 title description 19
- 229910052500 inorganic mineral Inorganic materials 0.000 title description 8
- 239000011707 mineral Substances 0.000 title description 8
- 239000010949 copper Substances 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 8
- 235000010755 mineral Nutrition 0.000 description 7
- 238000003556 assay Methods 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- SRMBUOSQQRRJRV-UHFFFAOYSA-N ethyl ethoxycarbothioylsulfanylformate Chemical compound CCOC(=O)SC(=S)OCC SRMBUOSQQRRJRV-UHFFFAOYSA-N 0.000 description 4
- 239000008396 flotation agent Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 241000512668 Eunectes Species 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 150000004675 formic acid derivatives Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 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
- 239000002253 acid Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- JCBJVAJGLKENNC-UHFFFAOYSA-M potassium ethyl xanthate Chemical compound [K+].CCOC([S-])=S JCBJVAJGLKENNC-UHFFFAOYSA-M 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 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
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009291 froth flotation Methods 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 239000003921 oil Substances 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
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005292 vacuum distillation Methods 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
- B03D2203/00—Specified materials treated by the flotation agents; Specified applications
- B03D2203/02—Ores
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.
- the flotation reagents used in the present process may be prepared with comparative ease.
- ethyl xanthogen ethyl formate may be made by suspending 21 gems of potassium xanthate in 75 cc. of
- nzene 0 this sus ension are slowly added 10 grams of ethyl chIQr formate, vigorous agitation bein employed. The mixture is heated and he d at the refluxing temperature for four hours and then filtered to remove any unconverted potassium xanthate and the potassium chloride which is formed durin the reaction. The benzene is re move by vacuum distillation, the residual oil being the ethyl xant-hogen ethyl formate. Any other suitable method may be used for preparing the flotation agents.
- the ste which comprises subjecting the ore in t e form of a pulp to a froth flotation operation in the presence of an alkyl xanthogen formate.
- the step which comprises subjectin a pulp to a froth otation operation in the presence of a substance having the following general structural formula:
- R and R represent alkyl groups.
- R and R represent the same alkyl groups.
Landscapes
- Paper (AREA)
Description
Patented Dec. 6, 1927.
UNITED STATES PATENT OFFICE.
WILLIAM A. DOUGLASS,
0F IPENNS GROVE, NEW JERSEY, ASSIGNOR TO E. I. DU PONT DE NEMOURS & COMPANY, OF WILMINGTON, DELAWARE, A CORPORATION OF DELAWARE.
No 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 ob ects of the present invention to carry out flotation processes in an efficient manner by the use of a class of flotation compounds having highly selective properties. It is a further object to carry out the flotation processes by the use of flotation agents which are suitable for use in a neutral, alkaline or acid flotation circuit.
I have discovered that these and other objects may be attained by using in the flotation process alkyl xanthogen formates. These compounds are characterized by having the following general structural formula s o aod-s-doa 3 O GIHI Oil-S- o CIHI As illustrative of the complete flotation process the following procedure may be carried out:
500 grams of ore and 350 cc. of water are ground in a ball mill for 20 minutes and are then transferred to a J anney laboratory flotation machine. The pulp is diluted in the machine so as to obtain a 38.5% solid pulp. The ethyl xanthogen ethyl formate and a frothing agent (pine oil) are added to the pulp and the mixture preagitated for one minute. The pulp is diluted to about a 20%- solid content, causing circulation and froth formation. The froth is removed over a seven-minute period.
Using Utah Copper Company and Anaconda Copper Mining Company ores, re-
CQNCENTRATING ORES AND MINERALS BY FLOTATION.
Application filed October 25, 1926. Serial No. 144,194.
spectively, the following results were obtained:
Using the same flotation reagent in the proportion of 0.10 pound per ton of ore, and carrying out the flotation process in the described manner with an Anaconda ore in a neutral circuit, the following results were obtained:
Assay of heads=1.86% Cu.
Assay of Conct.=8.05% Cu.
Assay of tails=0.15% Cu.
Percent of total Cu recovered=93.6%.
In carrying out the flotation process with Anaconda ore in an acid circuit containing sulfuric acid in the ratio of 8.0 pounds per ton of ore, and using as the flotation reagent, ethyl xanthogen ethyl formate in the rat-1o of 0.1 pound per ton of ore, the following results were obtained:
Assay of heads=1.86% Cu.
Assay of Conct.=10.35% Cu.
Assay of tails=0.085% Cu.
Percent of total Cu recovered=96.2%.
These results are typical of results obtainable by using other alkyl xanthogen formates suchas, for instance, the xanthogen formates of propyl, butyl, amyl, etc. By using these agents in the flotation process excellent results are obtained and the process is susceptible of wide application.
The flotation reagents used in the present process may be prepared with comparative ease. For example, ethyl xanthogen ethyl formate may be made by suspending 21 gems of potassium xanthate in 75 cc. of
nzene 0 this sus ension are slowly added 10 grams of ethyl chIQr formate, vigorous agitation bein employed. The mixture is heated and he d at the refluxing temperature for four hours and then filtered to remove any unconverted potassium xanthate and the potassium chloride which is formed durin the reaction. The benzene is re move by vacuum distillation, the residual oil being the ethyl xant-hogen ethyl formate. Any other suitable method may be used for preparing the flotation agents.
In illustrating the present rocess, reference has been made specifica ly to certain ores and reagents, and to various specific conditions of operation. It will be understood that the present process is not limited 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 compounds of the class described. Suitable modifications and changes may be made without departing from the spirit and scope of the invention.
I claim:
1. In the process of concentrating ores and minerals by flotation, the ste which comprises subjecting the ore in t e form of a pulp to a froth flotation operation in the presence of an alkyl xanthogen formate. In the process of concentrating ores and minerals by flotation, the step which comprises subjectin a pulp to a froth otation operation in the presence of a substance having the following general structural formula:
in which R and R represent alkyl groups.
3. In the process of concentrating ores and minerals by flotation, the step which comprises subjcctin the ore in the form of a pulp to a froth fl otation operation in the presence of ethyl xanthogen ethyl formats.
4. In the process of concentrating ores and minerals by flotation, the step which comprises subjectin the ore in the form of a pulp to a froth otation operation in the presence of a substance having the following general structural formula:
in which R and R represent the same alkyl groups.
In testimony whereof I afiix my signature.
WILLIAM A. DOUGLASS.
the ore in the form of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US144194A US1652099A (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 |
|---|---|---|---|
| US144194A US1652099A (en) | 1926-10-25 | 1926-10-25 | Process of concentrating ores and minerals by flotation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1652099A true US1652099A (en) | 1927-12-06 |
Family
ID=22507503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US144194A Expired - Lifetime US1652099A (en) | 1926-10-25 | 1926-10-25 | Process of concentrating ores and minerals by flotation |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1652099A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2628971A (en) * | 1947-06-25 | 1953-02-17 | American Cyanamid Co | Esters of alkylxanthic formic acid |
| US2628717A (en) * | 1947-06-25 | 1953-02-17 | American Cyanamid Co | Flotation of ores |
| US2668847A (en) * | 1948-01-28 | 1954-02-09 | Union Carbide & Carbon Corp | Thioesters and process |
| US2689046A (en) * | 1950-12-02 | 1954-09-14 | Minerec Corp | Concentration of minerals |
| US2689044A (en) * | 1950-12-02 | 1954-09-14 | Minerec Corp | Concentration of minerals |
| US2689043A (en) * | 1950-12-02 | 1954-09-14 | Minerec Corp | Concentration of minerals |
| US2689045A (en) * | 1950-12-02 | 1954-09-14 | Minerec Corp | Concentration of minerals |
| US4136020A (en) * | 1976-11-11 | 1979-01-23 | Minerec Corporation | Flotation reagent and process |
| US4191641A (en) * | 1978-01-26 | 1980-03-04 | Mineric Corporation | Flotation process with use of xanthogen chloropropyl formate reagents |
| US4220524A (en) * | 1978-01-13 | 1980-09-02 | Codelco-Chile | Collector agent for the recovery of metal values in sulphide ores by froth flotation |
-
1926
- 1926-10-25 US US144194A patent/US1652099A/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2628971A (en) * | 1947-06-25 | 1953-02-17 | American Cyanamid Co | Esters of alkylxanthic formic acid |
| US2628717A (en) * | 1947-06-25 | 1953-02-17 | American Cyanamid Co | Flotation of ores |
| US2668847A (en) * | 1948-01-28 | 1954-02-09 | Union Carbide & Carbon Corp | Thioesters and process |
| US2689046A (en) * | 1950-12-02 | 1954-09-14 | Minerec Corp | Concentration of minerals |
| US2689044A (en) * | 1950-12-02 | 1954-09-14 | Minerec Corp | Concentration of minerals |
| US2689043A (en) * | 1950-12-02 | 1954-09-14 | Minerec Corp | Concentration of minerals |
| US2689045A (en) * | 1950-12-02 | 1954-09-14 | Minerec Corp | Concentration of minerals |
| US4136020A (en) * | 1976-11-11 | 1979-01-23 | Minerec Corporation | Flotation reagent and process |
| US4220524A (en) * | 1978-01-13 | 1980-09-02 | Codelco-Chile | Collector agent for the recovery of metal values in sulphide ores by froth flotation |
| US4191641A (en) * | 1978-01-26 | 1980-03-04 | Mineric Corporation | Flotation process with use of xanthogen chloropropyl formate reagents |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US1652099A (en) | Process of concentrating ores and minerals by flotation | |
| US1684536A (en) | Flotation process | |
| US2074699A (en) | Flotation process | |
| US1659396A (en) | Process of concentrating ores and minerals by flotation | |
| US1364307A (en) | Flotation of minerals | |
| US1801318A (en) | Concentration of ores | |
| US1780000A (en) | Concentration of ores by flotation | |
| US1497699A (en) | Concentration of ores | |
| US1801319A (en) | Flotation of minerals | |
| US1819112A (en) | Froth flotation of minerals | |
| US2535344A (en) | Flotation of minerals with hydroperoxide frothers | |
| US1761546A (en) | Concentration of phosphate-bearing material | |
| US1970508A (en) | Flotation of ores | |
| US1640218A (en) | Concentration of ores | |
| US2283295A (en) | Process of purifying glass sands | |
| US1773787A (en) | Art of concentration of ores | |
| US1801320A (en) | Concentration of ores | |
| US1364304A (en) | Flotation of minerals | |
| US1819113A (en) | Flotation reagent and process of froth flotation | |
| US1716104A (en) | Concentration of ores by flotation | |
| US2512715A (en) | Froth flotation of sulfide ores | |
| US1847367A (en) | Concentration of ores, minerals, and the like | |
| US1807860A (en) | Separation of minerals | |
| US1364859A (en) | Flotation of minerals | |
| US1850991A (en) | Froth-flotation concentration of ores |