US1741028A - Flotation process - Google Patents
Flotation process Download PDFInfo
- Publication number
- US1741028A US1741028A US221136A US22113627A US1741028A US 1741028 A US1741028 A US 1741028A US 221136 A US221136 A US 221136A US 22113627 A US22113627 A US 22113627A US 1741028 A US1741028 A US 1741028A
- Authority
- US
- United States
- Prior art keywords
- flotation
- resins
- lbs
- insoluble
- copper
- 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
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
- B03D1/02—Froth-flotation processes
- B03D1/06—Froth-flotation processes differential
-
- 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
- B03D1/016—Macromolecular 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
-
- 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
- tion circuit is out of balance, or
- Ourinvention relates to reagentstor use inthe flotation of ores.
- the classes of reagents whereby this regulation and selectivity are obtained are: the resins, gums, the gum resins, and 'the oleo resins. Cited among-the above classes of compounds are: Canada balsam, Peru balsam, tolu balsam, benzoin, copal, s andara,
- the selectivity and regulation In addition to lent by these higher grade concentrates can In order to more clearly show the effectiveness of those reagents,' a few examples may An ore assaying 1.5% copper; 2.5% zinc: 18% insoluble; 25% iron; 26% sulfur, Was ground in a ball mill with lime (1 lb. per ton of ore) and floated. for copper, using. 0.05
- the Circuit can be readjusted and regulated by addition of solutions or mixtures of solutions of various gums, 'gum resins, oleo resins and balsams, in quantities varying from 0.1 lbs. to 5 lbs. of the dissolved gums, gum' resins, oleo resins or I balsams, or mixtures therof, to the ton of ore.
- composition or conditions will vary; but the selection of the composition or conditions can be readily determined by those skilled in the art.
- step of controlling the activity of the froth- I flotation reagents and'controlling the flotation of micaceous matter which consists in adding controlled quantities of a reagent containing a gummy adhesive to the circuit
- the step of controllingthe flotation characteristics of the miscaceous matter which comprises adding to the circuit containing the known flotation In test Per cent tures' imony whereof, we aflix our signa- HENRY T. KOENIG. OSCAR A. FISCHER. AUDIS B. GLAMPITT.
Description
; tion circuit is out of balance, or
5 balsam Ecru.
Patented Dec. 24, 1929 UNITED STATES PTATENT orrlcef;
HENRY r. Konme, oscAR A FISCHER, EARL r. HAZEVFEY, AND, AUnIsB'. cLAMPIT'r, on DENVER, COLORADO, ASSIGNORS TO B. ncnnrmme, JR, AGENT, or SAN FRAN- CISCO, CALIFORNIA. v
No Drawing.
Ourinvention relates to reagentstor use inthe flotation of ores. v
In the flotation of many sulfide ores. the
become involved and costly through the in ability to either float it cleanly from the sulfides or depress it to an extent that'will prevent its contaminatingthe varlous sul- It has alsobee'nfound, in cases, that 'When conditions are satisfactory for the flotation of mica, or'any particular sulfide, the flotadestroyed for the flotation of other sulfides. In this connection,'fwehave discovered several. classes of compounds, or their mlxtufre,"
which permit'not only of regulation of a flotation circuit, but also of better selectivlty. The classes of reagents whereby this regulation and selectivity are obtained are: the resins, gums, the gum resins, and 'the oleo resins. Cited among-the above classes of compounds are: Canada balsam, Peru balsam, tolu balsam, benzoin, copal, s andara,
' guaiacum, ammoniacum, gamboge;jgum dextrin, gum arabic, myrrh, tragacanth, etc.
'WVe have-found that some individual gums,
etc. Work better than others, While some mixtures work better than the individual gums,
gum resins or balsams. Our best results'thus far have been obtained flQI11.gL1II1 '2.13.b1C, yrrh, dextrin, tragacanth, benzoln, and
For want of a more appropriate term to identify this class of sense hereby indicated, and thatany interpretationof the term which is inappropriate coI'1strui-n'g the claims.
FLOTATION rnocnss compounds, be obtainedfand better'recoveries effected.
gums, resins, gum I'e-l sins, oleo resins, adhesives, etc., described herein,'the term gummy adhesive? is used. It i s'tobe understood, however, that this termJgummy adhesive is used in the special Application. filed September 21, 927. serial No. 221,136.
WVater or alcoholic \solutions ofthe af or e said compounds, or mixtures thereof, when added with the usual flotation oils and reagents, to a. flotation-circuit at the stages desired-,will permit theoperator to-control theflotation at these stages. the selectivity and regulation In addition to lent by these higher grade concentrates can In order to more clearly show the effectiveness of those reagents,' a few examples may An ore assaying 1.5% copper; 2.5% zinc: 18% insoluble; 25% iron; 26% sulfur, Was ground in a ball mill with lime (1 lb. per ton of ore) and floated. for copper, using. 0.05
lb s.'pine oil per ton of ore and 0.2 lbs. sodium After removal of.
Xanthate per ton of ore. the copper float, 0.75 lbs.copper sulfate, 0.5 lbs. lime, 0.1 lbs. cresylic acid, and 0.1 lbs. sodium Xanthate were added and the zinc floated ofi. This 4 practice on this ore, and the products obtained assayed as follows Copper Zinc Insoluble f Per cent Per cent Per cent I Cppper poncentrates; 10. 5 5.0 21. 1
Zinc concentrates 1. 55 14. 2 12.0 Tallings 9 0. 4 0.6 14. 9
The ab o e float was duplicated, adding 1.5 lbs. gum arabic per'ton ofore, prior to the copper float, and 0.5 lbs. of gum arabic, and only 0.05
lbs. sodium Kant-hate per ton of ore, to the zinc float, other conditionsbeing the same. v
Copper Zinc Insoluble Per cent Per cent Per cent Cppper concentrates 13.8 2.8 2.0 Z1n c concentrates 1. 8 33. 1 1. 3 Tafl ngs 0.35 0.5 15.5
By using'the same reagents and as above, and increasing the alkalinity, the ingum arabic,
Was heretofore the best 1 soluble was floated oflleaving most ofthe'sulreagents an additional reagent containing a fides behind for subsequent separation. The gummy adhesive.
analysis of this insoluble (mostly mica) was:
Insoluble 85 Iron 4:.0 Copper 0.25 Zinc 0.3
An attempt tofloat the insoluble under the same conditions as cited above, but without tihe use of, gum arabic, gave the following oat:
Per cent. Insoluble a 65 Iron 5.6 Copper Q. 0.85 Zinc 1.2
float, and subsequently adding. the usual flotation-oils the valuable sulfide sought is floated' in preference to the iron. If the insoluble -is not floated off before the copper and zinc, it can be depressed by gum arabio and acid, and -the iron floated oif leaving practically all of the insoluble intlie residue: Conditions of alkali-nity'and acidity together with quantities of the gums, gum resins, resins and oleo resins added govern the flotation of the various sulfide minerals and micaceoi s insoluble. In cases of over oiling or addition of excessive amounts of reagents the Circuit can be readjusted and regulated by addition of solutions or mixtures of solutions of various gums, 'gum resins, oleo resins and balsams, in quantities varying from 0.1 lbs. to 5 lbs. of the dissolved gums, gum' resins, oleo resins or I balsams, or mixtures therof, to the ton of ore.
Due to the varying characteristics of ores, it will be appreciated that the particular composition or conditions will vary; but the selection of the composition or conditions can be readily determined by those skilled in the art.
''What we claim, is:
1. In a process of froth flotation of pulp using the known froth flotation reagents, the
step of controlling the activity of the froth- I flotation reagents and'controlling the flotation of micaceous matter which consists in adding controlled quantities of a reagent containing a gummy adhesive to the circuit, and
subsequently adding further quantities of 3 known frothflotation reagents to the circuit. 2. In a process .of froth flotation of pulp containing miscaceous minerals using known froth flotation reagents, the step of controllingthe flotation characteristics of the miscaceous matter which comprises adding to the circuit containing the known flotation In test Per cent tures' imony whereof, we aflix our signa- HENRY T. KOENIG. OSCAR A. FISCHER. AUDIS B. GLAMPITT.
EARL F. H'AFFEY.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US221136A US1741028A (en) | 1927-09-21 | 1927-09-21 | Flotation process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US221136A US1741028A (en) | 1927-09-21 | 1927-09-21 | Flotation process |
Publications (1)
Publication Number | Publication Date |
---|---|
US1741028A true US1741028A (en) | 1929-12-24 |
Family
ID=22826499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US221136A Expired - Lifetime US1741028A (en) | 1927-09-21 | 1927-09-21 | Flotation process |
Country Status (1)
Country | Link |
---|---|
US (1) | US1741028A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844412A (en) * | 1969-06-25 | 1974-10-29 | D Robert | Depressing reagent for mineral flotation and method for its employment |
US4246096A (en) * | 1978-03-11 | 1981-01-20 | Falconbridge Copper Limited | Flotation process |
US4880529A (en) * | 1988-05-11 | 1989-11-14 | Falconbridge Limited | Separation of polymetallic sulphides by froth flotation |
US4952329A (en) * | 1988-05-11 | 1990-08-28 | Falconbridge Limited | Separation of polymetallic sulphides by froth flotation |
US5030340A (en) * | 1990-06-08 | 1991-07-09 | American Cyanamid Company | Method for the depressing of hydrous silicates and iron sulfides with dihydroxyalkyl polysaccharides |
-
1927
- 1927-09-21 US US221136A patent/US1741028A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844412A (en) * | 1969-06-25 | 1974-10-29 | D Robert | Depressing reagent for mineral flotation and method for its employment |
US4246096A (en) * | 1978-03-11 | 1981-01-20 | Falconbridge Copper Limited | Flotation process |
US4880529A (en) * | 1988-05-11 | 1989-11-14 | Falconbridge Limited | Separation of polymetallic sulphides by froth flotation |
WO1989010792A1 (en) * | 1988-05-11 | 1989-11-16 | Falconbridge U.S., Inc. | Separation of polymetallic sulphides by froth flotation |
US4952329A (en) * | 1988-05-11 | 1990-08-28 | Falconbridge Limited | Separation of polymetallic sulphides by froth flotation |
US5030340A (en) * | 1990-06-08 | 1991-07-09 | American Cyanamid Company | Method for the depressing of hydrous silicates and iron sulfides with dihydroxyalkyl polysaccharides |
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