US2829770A - Air flotation of silica bearing oxidized copper ore - Google Patents
Air flotation of silica bearing oxidized copper ore Download PDFInfo
- Publication number
- US2829770A US2829770A US520093A US52009355A US2829770A US 2829770 A US2829770 A US 2829770A US 520093 A US520093 A US 520093A US 52009355 A US52009355 A US 52009355A US 2829770 A US2829770 A US 2829770A
- Authority
- US
- United States
- Prior art keywords
- flotation
- copper
- water
- ore
- air flotation
- 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 claims description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title description 18
- 229910052802 copper Inorganic materials 0.000 title description 18
- 239000010949 copper Substances 0.000 title description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title description 5
- 239000000377 silicon dioxide Substances 0.000 title description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 10
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 9
- 229910052945 inorganic sulfide Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 239000012141 concentrate Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 238000010908 decantation Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229940054266 2-mercaptobenzothiazole Drugs 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical group [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- 150000004763 sulfides Chemical class 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical class [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- FRVMKTLTJFPELD-UHFFFAOYSA-N copper trimer Chemical compound [Cu].[Cu].[Cu] FRVMKTLTJFPELD-UHFFFAOYSA-N 0.000 description 1
- ZZBBCSFCMKWYQR-UHFFFAOYSA-N copper;dioxido(oxo)silane Chemical compound [Cu+2].[O-][Si]([O-])=O ZZBBCSFCMKWYQR-UHFFFAOYSA-N 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 1
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 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
- B03D1/018—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
- 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
- B03D1/004—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
- the sulfide ores Prior to my present invention, the sulfide ores have been the most important ores of copper. Such ores are usually mixtures of copper and iron sulfides in admixture with compounds of various other metals. Methods have been well worked out in the art for the flotation of the Sulfide ores. Although there are large deposits of copper silicate ores containing chrysocolla, for example, in various parts of the world, means have not been available in the past for floating them satisfactorily, and it is therefore the primary object of my invention to provide the art with a satisfactory method for the flotation concentration of the oxidized copper ores which have the mineral chrysocolla present therein.
- This object is accomplished in accordance with my invention by adding to the aqueous pulp before the flotation step is carried out a Water-soluble inorganic sulfide, a water-soluble salt of Z-mercaptobenzothiazole, and copper sulfate, the Water-soluble salt of Z-mercaptobenzothiazole serving as a collector.
- EXAMPLE I As a specific illustration of an operation falling within the scope of my invention, a 500 gram sample of 6-mesh oxidized Chilean ore which was essentially a mixture of chrysocolla, quartz and minor amounts of magnetite, manganese oxides and clay was ground in three stages to provide a 385 gram fraction passing through a 65-mesh screen. This 385 gram fraction was mixed thoroughly with two liters of water, following which the mixture was permitted to settle for 5 minutes. The suspended material was removed by siphoning, leaving 285 grams of deslimed ore. 4
- the deslimed ore in admixture with two liters of water, was placed in a conventional laboratory flotation cell and 3.92 grams of CuSO .5H O was added. The mixture was then stirred for 5 minutes and unreacted copper sulfate was removed by decantation. Following this, water in suflicient amount was added to bring the volume of the mixture back to the volume which it had before the decantation, and 0.75 gram of the sodium 2,829,770 Patented Apr. 8, 1958 p ice salt of Z-mercaptobenzothiazole and 0.25 gram of Na S.9H O were added. The mixture. was agitated for 15 seconds without air, and air was then introduced and concentrate removed overhead for a period of 4 minutes.
- This rougher concentrate was then subjected to a second flotation in a duplicate of the first cell, sufficient water having been added to the rougher concentrate so that the volume of the flotation mixture was the same as it was during the first flotation operation. No additional reagents were added.
- Na S.9H O was added to the pulp before the flotation was begun.
- other inorganic, water-soluble sulfides vsuch as Na S, H 8, K 5 K S.5H O, calcium polysulfide or mixtures of the inorganic water-soluble sulfides.
- the amount added will be such that from about 0.1 to 1.0 grams of sulfur present in the inorganic water-soluble sulfide is introduced per .100 grams of copperpresent'in the ore.
- the sdium salt of Z-mercaptobenzothiazole there can be substituted other inorganic Water-soluble salts of Z-mercaptobenzothiazole, such as the potassium or ammonium salt or mixtures thereof.
- the amount of Water-soluble salt of Z-mercaptobenzothiazole introduced into the flotation mixture will generally be from about 1 to 10 grams per 100 grams of copper present in the ore.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
United States Patent O F AIR FLOTATION OF SILICA BEARING OXIDIZED COPPER ORE Nathaniel Arbiter, Sparkill, N. Y.
No Drawing. Application July 5, 1955 Serial No. 520,093
5 Claims. (Cl. 209-166) My invention relates to a method for the flotation concentration of oxidized copper ores which contain chrysocolla.
It is conventional in the art to concentrate certain copper-bearing ores by flotation. In such an operation, the run-of-mine ore is usually first crushed in large gyratory or jaw cnishers for the primary breaking, and thereafter in secondary crushers or rolls to produce finer sizes. Rod mills and ball mills are used for fine grinding. Generally it is necessary to grind the ores quite finely, usually sufliciently to pass a 40- or 60-mesh screen, in order to free a high percentage of the valuable mineral which is present in the ore. Following this, the ore in admixture with water and appropriate flotation reagents is subjected to a flotation operation in order to produce a flotation concentrate, which is thereafter dewatered,
' thickened and filtered to provide a concentrate which is suitable for smelting.
Prior to my present invention, the sulfide ores have been the most important ores of copper. Such ores are usually mixtures of copper and iron sulfides in admixture with compounds of various other metals. Methods have been well worked out in the art for the flotation of the Sulfide ores. Although there are large deposits of copper silicate ores containing chrysocolla, for example, in various parts of the world, means have not been available in the past for floating them satisfactorily, and it is therefore the primary object of my invention to provide the art with a satisfactory method for the flotation concentration of the oxidized copper ores which have the mineral chrysocolla present therein.
This object is accomplished in accordance with my invention by adding to the aqueous pulp before the flotation step is carried out a Water-soluble inorganic sulfide, a water-soluble salt of Z-mercaptobenzothiazole, and copper sulfate, the Water-soluble salt of Z-mercaptobenzothiazole serving as a collector.
EXAMPLE I As a specific illustration of an operation falling within the scope of my invention, a 500 gram sample of 6-mesh oxidized Chilean ore which was essentially a mixture of chrysocolla, quartz and minor amounts of magnetite, manganese oxides and clay was ground in three stages to provide a 385 gram fraction passing through a 65-mesh screen. This 385 gram fraction was mixed thoroughly with two liters of water, following which the mixture was permitted to settle for 5 minutes. The suspended material was removed by siphoning, leaving 285 grams of deslimed ore. 4
The deslimed ore, in admixture with two liters of water, was placed in a conventional laboratory flotation cell and 3.92 grams of CuSO .5H O was added. The mixture was then stirred for 5 minutes and unreacted copper sulfate was removed by decantation. Following this, water in suflicient amount was added to bring the volume of the mixture back to the volume which it had before the decantation, and 0.75 gram of the sodium 2,829,770 Patented Apr. 8, 1958 p ice salt of Z-mercaptobenzothiazole and 0.25 gram of Na S.9H O were added. The mixture. was agitated for 15 seconds without air, and air was then introduced and concentrate removed overhead for a period of 4 minutes. This rougher concentrate was then subjected to a second flotation in a duplicate of the first cell, sufficient water having been added to the rougher concentrate so that the volume of the flotation mixture was the same as it was during the first flotation operation. No additional reagents were added.
Table I below sets forth the results obtained when this procedure was carried out. It will be noted that the cleaner concentrate produced as an overhead in the second flotation step contained 16.3 percent by weight of copper and 88.7 percent of the copper present in the original flotation feed.
This experiment was conducted using the procedure of Example I, the only difference being that in the desliming operation sodium silicate was also used in the amount of 5 pounds per ton of ore. The results of this experiment are set forth in Table II below.
Table II Copper Copper Copper, Wt., Distrib., Distrib., Product Percent Percent Percent of Percent of Total Flotation Feed Feed Head (calc.) 3. 68 100.0 0.49 9.9 81 3. 40 12.8 Flot. Feed 4. 20 77.3 Cleaner Gone 15. 83 15.6 I Cleaner Tail.-. 7.17 7. 2 Rougher Tail 0. 42 54. 5
Various modifications can be made in the teachings of the specific examples to provide other embodiments which fall within the scope of my invention for the air flotation concentration of oxidized copper-bearing ores containing chrysocolla. Thus, in place of the CuSO .5H O employed in the specific examples, there can be substituted an equimolar amount of CuSO or mixtures of the two copper sulfates can be used. Furthermore, although in the specific examples unreacted copper sulfate was removed by decantation before the actual flotation was begun, this step is not essential to my invention. Thus, if desired, the excess copper sulfate need not be removed, although it preferably is in order that it can be used again in the treatment of further batches of copper-containing ore. In general, the copper sulfate, either anhydrous or hydrated, will be used in amount such that from about 2 to 15 parts by Weight of copper present in the copper sulfate will be added per parts by weight of copper present in the ore.
In the specific example, Na S.9H O was added to the pulp before the flotation was begun. In place of this there can be substituted other inorganic, water-soluble sulfides, vsuch as Na S, H 8, K 5 K S.5H O, calcium polysulfide or mixtures of the inorganic water-soluble sulfides. The amount added will be such that from about 0.1 to 1.0 grams of sulfur present in the inorganic water-soluble sulfide is introduced per .100 grams of copperpresent'in the ore. Also, in place of the sdium salt of Z-mercaptobenzothiazole there can be substituted other inorganic Water-soluble salts of Z-mercaptobenzothiazole, such as the potassium or ammonium salt or mixtures thereof. The amount of Water-soluble salt of Z-mercaptobenzothiazole introduced into the flotation mixture will generally be from about 1 to 10 grams per 100 grams of copper present in the ore.
I claim:
1. In the air flotation of oxidizedvcopper ore containing chrysocolla, the step of adding to the aqueous pulp before flotation a water-soluble inorganic sulfide, a watersoluble salt of. 2- mercaptobenzothiazole, and copper sulfate.
2. The method of claim 1 wherein the water-soluble inorganic sulfide is sodium sulfide.
3. The method of claim 1 wherein the water-soluble salt of Z-mercaptobenzothiazole is the sodium salt.
4. The method of claim 1 wherein the sulfur present in the water-soluble inorganic sulfide is within the range from 0.1' to 1 gram per 100 grams of copper present in the ore, wherein the amount of water-soluble salt of 2- mercaptobenzothiazole added is within the range from 1 to 10 grams per 100 grams of copper present in the ore and wherein the copper present in the copper sulfate is within the range from 2 to 15 grams per 100 grams of copper present in the ore. 7
5. The method of claim -4 wherein the water-soluble inorganic sulfide is sodium sulfide and wherein the watersoluble salt of Z-mercaptobenzothiazole is the sodium salt.
OTHER REFERENCES Taggart: Handbook of .Mineral Dressing, c. .1945, pages 12-121.
Claims (1)
1. IN THE AIR FLOTATION OF OXIDIZED COPPER ORE CONTAIN ING CHRYSOCOLLA, THE STEP OF ADDING TO THE AQUEOUS PULP BEFORE FLOTATION A WATER-SOLUBLE INORGANIC SULFIDE, A WATERSOLUBLE SALT OF 2-MERCAPTOBENSOTHIAZOLE, AND COPPER SULFATE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US520093A US2829770A (en) | 1955-07-05 | 1955-07-05 | Air flotation of silica bearing oxidized copper ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US520093A US2829770A (en) | 1955-07-05 | 1955-07-05 | Air flotation of silica bearing oxidized copper ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2829770A true US2829770A (en) | 1958-04-08 |
Family
ID=24071168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US520093A Expired - Lifetime US2829770A (en) | 1955-07-05 | 1955-07-05 | Air flotation of silica bearing oxidized copper ore |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2829770A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2029156A (en) * | 1928-11-01 | 1936-01-28 | American Cyanamid Co | Oxide flotation |
-
1955
- 1955-07-05 US US520093A patent/US2829770A/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2029156A (en) * | 1928-11-01 | 1936-01-28 | American Cyanamid Co | Oxide flotation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4098687A (en) | Beneficiation of lithium ores by froth flotation | |
| CA2582953C (en) | Arsenide depression in flotation of multi-sulfide minerals | |
| US3259242A (en) | Beneficiation of apatite-calcite ores | |
| US5122289A (en) | Collector composition for use in a froth flotation process for the recovery of minerals | |
| US4366050A (en) | Scheelite flotation | |
| US2861687A (en) | Flotation of heavy metal oxides | |
| Umarova et al. | Study on the enrichment of polymetallic ores of the deposit Handiza | |
| US4132635A (en) | Beneficiation of iron ores by froth flotation | |
| US3430765A (en) | Beneficiation of fluorspar ores | |
| US2231265A (en) | Process of ore concentration | |
| US4220525A (en) | Beneficiation of metallic ores by froth flotation using polyhydroxy amine depressants | |
| US3893915A (en) | Fluorspar ore flotation | |
| US2829770A (en) | Air flotation of silica bearing oxidized copper ore | |
| US3844939A (en) | Flotation separation of feldspar | |
| US3078997A (en) | Flotation process for concentration of phenacite and bertrandite | |
| US2669355A (en) | Flotation method and reagent | |
| US3469693A (en) | Beneficiation of ores by froth flotation using sulfosuccinamates | |
| US2410021A (en) | Flotation process | |
| US2168762A (en) | cacos | |
| US2162525A (en) | Flotation of fine oxide ore minerals | |
| US1326855A (en) | Edwin edser | |
| US1972588A (en) | Froth-flotation process | |
| US2811254A (en) | Method for the beneficiation of phosphate ores | |
| US3928019A (en) | Froth flotation method | |
| US1951326A (en) | Process for recovering manganese from ore |