US2300827A - Flotation of nonmetallic minerals - Google Patents
Flotation of nonmetallic minerals Download PDFInfo
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- US2300827A US2300827A US346986A US34698640A US2300827A US 2300827 A US2300827 A US 2300827A US 346986 A US346986 A US 346986A US 34698640 A US34698640 A US 34698640A US 2300827 A US2300827 A US 2300827A
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- US
- United States
- Prior art keywords
- flotation
- fatty acid
- phosphate
- promoter
- diluted
- 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 19
- 229910052500 inorganic mineral Inorganic materials 0.000 title description 3
- 239000011707 mineral Substances 0.000 title description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 24
- 239000000194 fatty acid Substances 0.000 description 24
- 229930195729 fatty acid Natural products 0.000 description 24
- 150000004665 fatty acids Chemical class 0.000 description 23
- 238000000034 method Methods 0.000 description 23
- 239000000203 mixture Substances 0.000 description 19
- 229910019142 PO4 Inorganic materials 0.000 description 17
- 239000010452 phosphate Substances 0.000 description 17
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 16
- 238000009291 froth flotation Methods 0.000 description 15
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 14
- 150000002576 ketones Chemical class 0.000 description 13
- 238000011084 recovery Methods 0.000 description 13
- 239000012141 concentrate Substances 0.000 description 12
- 239000003153 chemical reaction reagent Substances 0.000 description 11
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 9
- -1 talloel Chemical class 0.000 description 8
- 125000001931 aliphatic group Chemical group 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000004568 cement Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 235000019198 oils Nutrition 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 230000001737 promoting effect Effects 0.000 description 5
- 239000000344 soap Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- OJVAMHKKJGICOG-UHFFFAOYSA-N 2,5-hexanedione Chemical compound CC(=O)CCC(C)=O OJVAMHKKJGICOG-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 239000002198 insoluble material Substances 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali 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
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 235000021323 fish oil Nutrition 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 235000021588 free fatty acids Nutrition 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- XLSMFKSTNGKWQX-UHFFFAOYSA-N hydroxyacetone Chemical compound CC(=O)CO XLSMFKSTNGKWQX-UHFFFAOYSA-N 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229910001655 manganese mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 229940078499 tricalcium phosphate Drugs 0.000 description 1
- 229910000391 tricalcium phosphate Inorganic materials 0.000 description 1
- 235000019731 tricalcium phosphate Nutrition 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
- B03D1/008—Organic compounds containing oxygen
-
- 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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/007—Modifying reagents for adjusting pH or conductivity
-
- 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
- B03D2203/06—Phosphate 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
- Y10S209/902—Froth flotation; phosphate
Definitions
- the present invention relates to improved flotation promoters for non-metallic minerals and more specifically relates to a method of improving the promoting power of the promoters ordinarily employed in concentrating non-metalliferous ore values by froth flotation.
- promoters used heretofore are the free fatty acids themselves such as oleic acid, flsh oil fatty acids, talloel, fatty acid soaps, and the like.
- these various promoters may be mixed with an alkali such as caustic soda along. with a water-immiscible oil such as fuel oil and may or may not also contain a frother such as pine oil or kerosene.
- the process and reagent mixtures of this invention can be utilized for recovering the values by froth flotation from any of the non-metalliferous ores such as phosphate rock, limestone, fluorspar, manganese minerals, calcite, cement rock,
- the present invention relates 65 prised of the above ketones with aliphatic alco-' nection we may mix the fatty acid promoter diluted with the ketone or ketone-alcohol mixture. with'an equal quantity of fuel oil and then add this /50 mixture to the flotation feed or pulp containing the correct quantity of caustic and then condition for a short time prior to the froth flotation.
- the improved reagent mixture is also adaptable for processes in which a rougher concentrate is flrst produced and this rougher concentrate returned to the flotation cell and a cleaner concentrate produced, either with or without the addition of further quantities of the reagent mixture.
- fatty acid promoters may likewise be diluted with about 20% or less of a mixture'comof the fatty acid-ketone mixture.
- hols in varying proportions, that is to say, they may be mixed in equal quantities or mixtures may be employed having a larger proportion, of the ketone as well as mixtures having a larger proportion of alcohol.
- aliphatic alcohols that have been found to be useful are those such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, octyl; the polyhydroxy alcohols such as glycol, diethylene glycol, or polyethylene glycols, and the various ether alcohols such as mono-methyl ether of diethylene glycol, mono-- ethyl ether of diethylene glycol, mono-butyl ether of diethylene glycol, and the like.
- a Florida pebble phosphate flotation feed consisting mainly of tricalcium phosphate and silica, and in which'the particle size is preferably -28 mesh material, is diluted to a pulp density of about 72% solids.
- This pulp is then conditioned with the necessary reagents which may comprise from .5 to 1.5 lbs. per ton of feed of a promoter comprising a fatty acid dilu'ted with 20% acetone, from 2 to 4 lbs. of fuel oil per ton of feed, and from .5 to 1 lb. of caustic soda per ton of feed.
- the pulp is transferred to a suitable flotation cell such as the Fagergren flotation machine and diluted to about 20-22% solids with water.
- This diluted pulp is then subjected to agitation and aeration to produce a rougher concentrate.
- the results obtained by the use of the reagent mixture described above are superior to results obtained when compared to the same process but in which fatty acids alone are used as a promoter instead
- the percentage B. P. L.- in the cleaner concentrate ranges from l-2.5% higher andat the same time the percentage insoluble in the cleaner concentrate is from .5-l.5% less.
- the cement rock in the form of a slurry is diluted to about 20-22% solids with water and placed in a suitable flotation cell.
- the reagent -mixture is then added, which may comprise a fatty acid such as oleic acid diluted with 20% acetone in the proportion of from .2-.'! lbs. per ton of ore.
- the reagents are conditioned with the pulp'for a short time and then subjected to oil fatty acid diluted with 10% acetone as a promoter, we have found that the recovery of calcium carbonate is about 1 or 2% higher than the same process when flsh oil fatty acid alone is used as a promoter.
- the improvement in the recovery of nonmetallic ore values by froth flotation processes which comprises carrying out the flotation in the presence of a non-metallic .ore promoter of the group consisting of higher fatty acids and higher fatty acid soaps diluted with at least one of the substances included in the group consisting of aliphatic water-soluble ketones and mixtures of aliphatic water-soluble ketones with aliphatic alcohols, the total amount of said diluent,
- the method which comprises carrying out the flotation in the presence of a fatty acid phosphate promoter of thegroup consisting of higher fatty acids and higher fatty acid soaps dilutedwith at least one of the substances included'in the group consisting of aliphatic water-soluble ketones and mixtures of aliphatic water-soluble ketones' with aliphatic alcohols, the total amount of said diluent being from about 10% to not more than 20% of the amount of promoter present.
Description
Patented Nov. 3, 19.52
UNITED STATES PATENT OFFICE 2,300,821 p nors'rron or nomim'ramc MINERALS assignors to American Cyanamid New York, N. Y., a corporation of Maine Application July 23, 1940, Serial No. 346,986
No Drawing.
C mpa y,
7 Claims. (Cl. 209-166) The present invention relates to improved flotation promoters for non-metallic minerals and more specifically relates to a method of improving the promoting power of the promoters ordinarily employed in concentrating non-metalliferous ore values by froth flotation.
It is well known in the art that the values of non-metalliferous ores can be concentrated or recovered by froth flotation processes in which fatty acid substances are employed as promoters. Among the more important promoters used heretofore are the free fatty acids themselves such as oleic acid, flsh oil fatty acids, talloel, fatty acid soaps, and the like. In carrying out the actual froth flotation operation these various promoters may be mixed with an alkali such as caustic soda along. with a water-immiscible oil such as fuel oil and may or may not also contain a frother such as pine oil or kerosene. One of the more important fields in which such reagent mixtures are employed is in the recovery of the values from phosphate ore materials by froth flotation. While such phosphate recovery processes have been employed successfully on a commercial basis, they are not entirely satisfactory in that it is difllcult to obtain a phosphate concentrate having a low I percentage of insoluble material. The value of the phosphate concentrate is very largely determined by the amount of insoluble material which is present and it is therefore very desirable that a phosphate concentrating process be developed in general to the treatment of such-non-metalliferous ores, it has been found to be particularly efllcient in the treatment of phosphate ores and cement rock. 4
In connection with the recovery of values from phosphate ores, we have found that we can reduce the percentage of insoluble in the concentrate on the average of about 1 to 2% when comparedto the ordinary fatty acid flotation process, while at the same time the percentage recovery is also increased. In obtaining these improved results, the reagent cost is increased only about $.01 per ton of phosphate concentrate and hence the present invention results in a very economical saving in concentration of phosphate ores. The higher grade concentrates will also bring a better price as a 1% increase in grade is equivalent'to about $.15 increase in value per ton of concenadaptable to the present process. In this conwhich would result in the production of concen' trates with a lower insoluble content.
In accordance withthe present invention, it
has been discovered that the promoting power of fatty acid type Promoters employed in concentrating non-metalliferous materials by froth flotation can be very greatly increased by diluting the flotation reagent with about 20% or less of a water-soluble ketone, water-soluble hydroxy ketones, or mixtures of such ketones with aliphatic alcohols.- The exact reason why the promoting power of the non-metallic flotation promoters is increased by diluting with a small amount of the ketone or ketone-alcohol mixture has .not been definitely determined,-and we do not desire therefore to limit the present invention to any theory or explanation as to why the promoting power is increased.
The process and reagent mixtures of this invention can be utilized for recovering the values by froth flotation from any of the non-metalliferous ores such as phosphate rock, limestone, fluorspar, manganese minerals, calcite, cement rock,
and the like. While the present invention relates 65 prised of the above ketones with aliphatic alco-' nection we may mix the fatty acid promoter diluted with the ketone or ketone-alcohol mixture. with'an equal quantity of fuel oil and then add this /50 mixture to the flotation feed or pulp containing the correct quantity of caustic and then condition for a short time prior to the froth flotation. The improved reagent mixture is also adaptable for processes in which a rougher concentrate is flrst produced and this rougher concentrate returned to the flotation cell and a cleaner concentrate produced, either with or without the addition of further quantities of the reagent mixture.
It is an advantage of the present invention that the promoting power of the fatty acid type -toin, acetol, acetonyl acetone, valeric lactone,
methyl ethyl ketone, diethyl ketone, and the like. These fatty acid promoters may likewise be diluted with about 20% or less of a mixture'comof the fatty acid-ketone mixture.
hols in varying proportions, that is to say, they may be mixed in equal quantities or mixtures may be employed having a larger proportion, of the ketone as well as mixtures having a larger proportion of alcohol. Among the aliphatic alcohols that have been found to be useful are those such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, octyl; the polyhydroxy alcohols such as glycol, diethylene glycol, or polyethylene glycols, and the various ether alcohols such as mono-methyl ether of diethylene glycol, mono-- ethyl ether of diethylene glycol, mono-butyl ether of diethylene glycol, and the like.
In using our improved promoters inconnection with the recovery of values from phosphate ores by froth flotation, the process may be practiced as follows:
For example, a Florida pebble phosphate flotation feed consisting mainly of tricalcium phosphate and silica, and in which'the particle size is preferably -28 mesh material, is diluted to a pulp density of about 72% solids. This pulp is then conditioned with the necessary reagents which may comprise from .5 to 1.5 lbs. per ton of feed of a promoter comprising a fatty acid dilu'ted with 20% acetone, from 2 to 4 lbs. of fuel oil per ton of feed, and from .5 to 1 lb. of caustic soda per ton of feed. After this conditioning treatment the pulp is transferred to a suitable flotation cell such as the Fagergren flotation machine and diluted to about 20-22% solids with water. This diluted pulp is then subjected to agitation and aeration to produce a rougher concentrate. The rougher concentrate-is returned to the flotation cell. without additional reagents and a cleaner concentrate obtained. The results obtained by the use of the reagent mixture described above are superior to results obtained when compared to the same process but in which fatty acids alone are used as a promoter instead The percentage B. P. L.- in the cleaner concentrate ranges from l-2.5% higher andat the same time the percentage insoluble in the cleaner concentrate is from .5-l.5% less. In the above described process similar results are obtained when the promoter employed is talloel plus 20% acetone, talloel plus acetone, talloel plus 20% (acetone-50%, ethyl alcohol-50%), or such mixtures when fish oil fatty acid is used instead process may be carried out as follows:
The cement rock in the form of a slurry is diluted to about 20-22% solids with water and placed in a suitable flotation cell. The reagent -mixture is then added, which may comprise a fatty acid such as oleic acid diluted with 20% acetone in the proportion of from .2-.'! lbs. per ton of ore.
The reagents are conditioned with the pulp'for a short time and then subjected to oil fatty acid diluted with 10% acetone as a promoter, we have found that the recovery of calcium carbonate is about 1 or 2% higher than the same process when flsh oil fatty acid alone is used as a promoter.
We claim:
1. In the recovery of phosphate ore values by froth flotation processes the method which comprises carrying out the flotation in the presence of a talloel phosphate ore promoter diluted with from about 10% to not more than 20% .of an aliphatic water-soluble ketone.
2. In the recovery of phosphate ore values by froth flotation processes the method which comprises carrying out the flotltion in the presence of a talloel phosphate ore promoter diluted with from about 10% to not more than 20% of acetone.'
3. In the recovery of values from cement rock by froth flotation the process which comprises carrying out the flotation in the presence of a flsh oil fatty acid diluted with from about 10 to not more than 20% of an aliphatic watersolubie ketone as the promoter.
4. In the recovery of values from cement rock. by froth flotation the process which comprises carrying out the flotation in the presence of 'a' flsh oil fatty acid diluted with from about 10% to not more than 20% of acetone as the flotation promoter.
5. The improvement in the recovery of nonmetallic ore values by froth flotation processes which comprises carrying out the flotation in the presence of a non-metallic .ore promoter of the group consisting of higher fatty acids and higher fatty acid soaps diluted with at least one of the substances included in the group consisting of aliphatic water-soluble ketones and mixtures of aliphatic water-soluble ketones with aliphatic alcohols, the total amount of said diluent,
being from about 10% to not more than 20% of the amount of promoter present.
6. In the recovery of phosphate ore values by froth flotation processes, the method which comprises carrying out the flotation in the presence of a fatty acid phosphate promoter of thegroup consisting of higher fatty acids and higher fatty acid soaps dilutedwith at least one of the substances included'in the group consisting of aliphatic water-soluble ketones and mixtures of aliphatic water-soluble ketones' with aliphatic alcohols, the total amount of said diluent being from about 10% to not more than 20% of the amount of promoter present.
7. In the recovery of cement rock values by froth flotation processes, the method which coinprises carrying out the flotation in the presence of a fatty acid calcite promoter of the group consisting of higher fatty acids and higher fatty acid soaps diluted with at least one-of the substances included in the group consisting ofall phatic water-soluble ketones and mixtures of all-* phatic water-soluble ketones-with aliphatic alcohols, the total amount of said diluent being from about 10% to not more than 20% of the amount of promoter present. l
LUDWIG JACOB CHRISTMANN. STEPHEN EDWARD ERICKSON'.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US346986A US2300827A (en) | 1940-07-23 | 1940-07-23 | Flotation of nonmetallic minerals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US346986A US2300827A (en) | 1940-07-23 | 1940-07-23 | Flotation of nonmetallic minerals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2300827A true US2300827A (en) | 1942-11-03 |
Family
ID=23361863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US346986A Expired - Lifetime US2300827A (en) | 1940-07-23 | 1940-07-23 | Flotation of nonmetallic minerals |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2300827A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3623605A (en) * | 1969-01-09 | 1971-11-30 | Montedison Spa | Process for the flotation of fluorite |
| US4200522A (en) * | 1976-09-29 | 1980-04-29 | Chem-Y, Fabriek Van Chemische Produkten B.V. | Process for the flotation of ores |
| US20050269248A1 (en) * | 2004-06-07 | 2005-12-08 | Cameron Timothy B | Phosphate beneficiation process using methyl or ethyl esters as float oils |
| US20100181520A1 (en) * | 2008-08-19 | 2010-07-22 | Tata Steel Limited | Blended frother for producing low ash content clean coal through flotation |
| US20120111772A1 (en) * | 2007-06-18 | 2012-05-10 | Tran Bo L | Methyl isobutyl carbinol mixture and methods of using same |
-
1940
- 1940-07-23 US US346986A patent/US2300827A/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3623605A (en) * | 1969-01-09 | 1971-11-30 | Montedison Spa | Process for the flotation of fluorite |
| US4200522A (en) * | 1976-09-29 | 1980-04-29 | Chem-Y, Fabriek Van Chemische Produkten B.V. | Process for the flotation of ores |
| US20050269248A1 (en) * | 2004-06-07 | 2005-12-08 | Cameron Timothy B | Phosphate beneficiation process using methyl or ethyl esters as float oils |
| US6994786B2 (en) * | 2004-06-07 | 2006-02-07 | Arr-Maz Products, L.P. | Phosphate beneficiation process using methyl or ethyl esters as float oils |
| US20120111772A1 (en) * | 2007-06-18 | 2012-05-10 | Tran Bo L | Methyl isobutyl carbinol mixture and methods of using same |
| US8302778B2 (en) * | 2007-06-18 | 2012-11-06 | Nalco Company | Methyl isobutyl carbinol mixture and methods of using same |
| US20100181520A1 (en) * | 2008-08-19 | 2010-07-22 | Tata Steel Limited | Blended frother for producing low ash content clean coal through flotation |
| US8469197B2 (en) * | 2008-08-19 | 2013-06-25 | Tata Steel Limited | Blended frother for producing low ash content clean coal through flotation |
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