DE10320191A1 - Use of fatty acid alkyl esters as flotation agents - Google Patents
Use of fatty acid alkyl esters as flotation agents Download PDFInfo
- Publication number
- DE10320191A1 DE10320191A1 DE10320191A DE10320191A DE10320191A1 DE 10320191 A1 DE10320191 A1 DE 10320191A1 DE 10320191 A DE10320191 A DE 10320191A DE 10320191 A DE10320191 A DE 10320191A DE 10320191 A1 DE10320191 A1 DE 10320191A1
- Authority
- DE
- Germany
- Prior art keywords
- flotation
- fatty acid
- acid alkyl
- alkyl esters
- reagents
- 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.)
- Withdrawn
Links
- 235000014113 dietary fatty acids Nutrition 0.000 title claims abstract description 15
- 229930195729 fatty acid Natural products 0.000 title claims abstract description 15
- 239000000194 fatty acid Substances 0.000 title claims abstract description 15
- 239000008396 flotation agent Substances 0.000 title 1
- 238000005188 flotation Methods 0.000 claims abstract description 27
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 20
- 239000007787 solid Substances 0.000 claims abstract description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract 4
- 239000000203 mixture Substances 0.000 claims description 6
- 239000003245 coal Substances 0.000 claims description 5
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 230000032050 esterification Effects 0.000 claims description 2
- 238000005886 esterification reaction Methods 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 238000005809 transesterification reaction Methods 0.000 claims description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 2
- 239000008158 vegetable oil Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims 1
- 238000002474 experimental method Methods 0.000 description 8
- 150000001298 alcohols Chemical class 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- WVYWICLMDOOCFB-UHFFFAOYSA-N 4-methyl-2-pentanol Chemical compound CC(C)CC(C)O WVYWICLMDOOCFB-UHFFFAOYSA-N 0.000 description 3
- 235000019484 Rapeseed oil Nutrition 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000011280 coal tar Substances 0.000 description 2
- 150000004702 methyl esters Chemical class 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 239000003348 petrochemical agent Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- -1 aliphatic alcohols Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 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
- B03D2201/02—Collectors
-
- 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
- B03D2203/08—Coal ores, fly ash or soot
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
Gegenstand der Erfindung ist die Verwendung von Reagenzien, die Fettsäurealkylester der Formel DOLLAR A R¶1¶CO(O)R¶2¶ DOLLAR A enthalten, in der R¶1¶ für einen linearen, verzweigten oder cyclischen aliphatischen Kohlenwasserstoffrest mit 6 bis 18 Kohlenstoffatomen und R¶2¶ für einen linearen, verzweigten oder cyclischen Kohlenwasserstoffrest mit 1 bis 8 Kohlenstoffatomen steht, als biologisch abbaubares Flotationshilfsmittel zur Beeinflussung der Oberflächeneigenschaften von zu flotierenden Feststoffen.The invention relates to the use of reagents which contain fatty acid alkyl esters of the formula DOLLAR AR¶1¶CO (O) R¶2¶ DOLLAR A, in which R¶1¶ is a linear, branched or cyclic aliphatic hydrocarbon radical having 6 to 18 carbon atoms and R¶2¶ represents a linear, branched or cyclic hydrocarbon radical with 1 to 8 carbon atoms, as a biodegradable flotation aid for influencing the surface properties of solids to be floated.
Description
Die Erfindung betrifft die Verwendung der nachfolgend beschriebenen Reagenzien als Flotationshilfsmittel.The Invention relates to the use of those described below Reagents as flotation aids.
Zur Sortierung feinstkörniger verunreinigter Gemische von Kohlen, Erzen und anderen Feststoffen hat sich die Flotation durchgesetzt. Dabei wird die unterschiedliche Benetzbarkeit verschiedener Stoffe als Trennmerkmal genutzt und durch Zugabe von Flotationsreagenzien zur Feststofftrübe verstärkt. So werden durch Zugabe einer Reagenzkomponente die Oberflächen des zu flotierenden Minerals hydrophobiert, so dass sich dort die in die Trübe eingebrachten Luftblasen anlagern, die in der Regel den Wertstoff aufschwimmen lassen, wonach die an der Flüssigkeitsoberfläche gebildete feststoffbeladene Schaumschicht getrennt von den restlichen Feststoffen abgezogen wird.to Sorting fine-grained contaminated mixtures of coals, ores and other solids the flotation has prevailed. The different Wettability of different substances used as a separating feature and amplified by adding flotation reagents to the solid slurry. So by adding a reagent component, the surfaces of the mineral to be floated, so that the in the cloudy attached air bubbles, which usually contain the valuable substance float, after which the formed on the surface of the liquid solids-laden foam layer separated from the remaining solids is subtracted.
In der Vergangenheit wurden zur Flotation von Primär-Rohstoffen wie z. B. Steinkohle Steinkohlenteeröle als Sammler- und Schäumer-Flotationsreagenzien eingesetzt, die einen hohen Anteil biologisch nicht oder nur schwer abbaubarer Substanzen wie Phenole enthielten. Im Laufe der Zeit wurden die als Flotationsreagenzien eingesetzten Steinkohlenteeröle mit hohem aromatischen Anteil durch aliphatische Alkohole und unpolare Kohlenwasserstoff-Fraktionen aus der Petrochemie ersetzt. Auch heute noch sind insbesondere international bei der Kohleflotation einfache Alkohole mit niedrigen Flammpunkten wie z. B. Methylisobutylcarbinol (MIBC) und einige andere Alkohole sowie Polyglykole, und auch Petroleum, Kerosine oder Gas-Öle als Flotationsreagenzien im Einsatz, die aber alle biologisch nur schwer abbaubar sind, wodurch der Einsatz derartiger Reagenzien hinsichtlich der Umweltverträglichkeit beeinträchtigt ist.In In the past, flotation of primary raw materials such as B. Coal coal-tar as collector and foamer flotation reagents used a high proportion biologically not or only with difficulty contained degradable substances such as phenols. Over time the coal tar oils used as flotation reagents with high aromatic component due to aliphatic alcohols and non-polar hydrocarbon fractions replaced from petrochemicals. Even today are particularly international in coal flotation simple alcohols with low flash points such as B. methyl isobutyl carbinol (MIBC) and some other alcohols as well as polyglycols, and also petroleum, kerosene or gas oils as flotation reagents in use, but all of which are difficult to biodegrade, which means the use of such reagents with regard to environmental compatibility impaired is.
Der Erfindung liegt die Aufgabe zugrunde, zwecks Verwendung als Flotationshilfsmittel Reagenzien zu finden, die biologisch abbaubar und dennoch geeignet sind, die Oberflächeneigenschaften der flotativ zu sortierenden Feststoffe insbesondere bei der Durchführung der Flotation wirkungsvoll zu beeinflussen.The The object of the invention is to use it as a flotation aid Finding reagents that are biodegradable yet suitable are the surface properties of the solids to be sorted flotatively, especially when carrying out the To influence flotation effectively.
Diese Aufgabe wird gemäß der Erfindung mit als Flotationshilfsmittel verwendeten Reagenzien gelöst, die im Anspruch 1 gekennzeichnet sind. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This Object is according to the invention solved with reagents used as flotation aids are characterized in claim 1. Advantageous further training the invention are specified in the subclaims.
Flotationsreagenzien, welche die in Anspruch 1 angegebenen Fettsäurealkylester enthalten bzw. aus Gemischen solcher Ester bestehen, haben den Vorteil, dass sie biologisch abbaubar und damit umweltverträglich sind. Außerdem werden beim Einsatz von Gemischen solcher Flotationsreagenzien, die 1 bis 100 % des in Anspruch 1 angegebenen Fettsäurealkylesters enthalten, die arbeits-, lagerungs- und transportrelevanten Aspekte beim Umgang mit diesen Chemikalien verbessert.flotation reagents, which contain the fatty acid alkyl esters specified in claim 1 or consist of mixtures of such esters have the advantage that they are biodegradable and therefore environmentally friendly. Also be when using mixtures of such flotation reagents that 1 to Contain 100% of the fatty acid alkyl ester specified in claim 1, the work, storage and Transport-related aspects in handling these chemicals improved.
Nach einem besonderen Merkmal der Erfindung sind die im Flotationsreagenz bzw. im Flotationshilfsmittel enthaltenen Fettsäurealkylester durch Veresterung von Fettsäuren oder Umesterung vegetabilischer Öle, z. B. Rapsöl hergestellt worden.To A special feature of the invention are those in the flotation reagent or fatty acid alkyl esters contained in the flotation aid by esterification of fatty acids or transesterification of vegetable oils, z. B. rapeseed oil been made.
Überraschenderweise
ist die Effizienz der erfindungsgemäß eingesetzten umweltfreundlichen
Flotationsreagenzien, siehe nachfolgende Versuche Nr. 2, gegenüber den
bisher eingesetzten schwer abbaubaren Reagenzien bezogen auf das
Trennergebnis bzw. Sortierergebnis hoch, wie sich aus nachfolgenden
Vergleichsversuchen ergibt: 
Verglichen wurden durch die drei Versuchsreihen jeweils Reagenzien-Systeme, die 30 % einer unpolaren Komponente enthalten.Compared were reagent systems by the three series of experiments, that contain 30% of a non-polar component.
Das
heißt:
30 % GO 70 % MIBC (Versuch Nr. 1);
EKOFOL B 7: 30 % Rapsölmethylester,
70 % Alkohole und Ester (Versuch Nr. 2);
EKOFOL 440: 30 % unpolare
Fraktion aus der Petrochemie, 70 % Alkohole und Ester (Versuch Nr.
3).That means: 30% GO 70% MIBC (experiment no. 1);
EKOFOL B 7: 30% rapeseed oil methyl ester, 70% alcohols and esters (experiment no. 2);
EKOFOL 440: 30% non-polar fraction from petrochemicals, 70% alcohols and esters (experiment no. 3).
Der erfindungsgemäße Einsatz von Fettsäurealkylestern (im Beispiel Rapsölmethylester Versuch Nr. 2) zeigt im Vergleich zu international gebräuchlichen Mischungen (Versuch Nr. 1) ein deutlich höheres Ausbringen von Kohle und höhere Aschegehalte in den Bergen. Überraschenderweise sind die Aschewerte der Flotationskonzentrate immer noch geringer und das Ausbringen an Kohle immer noch geringfügig höher als beim Einsatz des jahrzehntelang optimierten EKOFOL 440 (Versuch Nr. 3).The use according to the invention of fatty acid alkyl esters (In the example, rapeseed oil methyl ester Experiment No. 2) shows in comparison to internationally used Mixtures (experiment No. 1) a significantly higher output of coal and higher Ash levels in the mountains. Surprisingly the ash values of the flotation concentrates are still lower and the coal output is still slightly higher than when using the decade optimized EKOFOL 440 (test No. 3).
Claims (7)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10320191A DE10320191A1 (en) | 2003-05-07 | 2003-05-07 | Use of fatty acid alkyl esters as flotation agents |
| PCT/EP2004/004692 WO2004098782A1 (en) | 2003-05-07 | 2004-05-04 | Use of fatty acid alkyl esters as flotation auxiliary agents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10320191A DE10320191A1 (en) | 2003-05-07 | 2003-05-07 | Use of fatty acid alkyl esters as flotation agents |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10320191A1 true DE10320191A1 (en) | 2004-12-02 |
Family
ID=33394189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10320191A Withdrawn DE10320191A1 (en) | 2003-05-07 | 2003-05-07 | Use of fatty acid alkyl esters as flotation agents |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE10320191A1 (en) |
| WO (1) | WO2004098782A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008014722A1 (en) | 2007-12-05 | 2009-07-30 | Kronos International, Inc. | Recovering coke and titanium dioxide from cyclone dust from the carbochlorination of titanium materials comprises two-stage flotation |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7624878B2 (en) * | 2006-02-16 | 2009-12-01 | Nalco Company | Fatty acid by-products and methods of using same |
| US7942270B2 (en) * | 2006-02-16 | 2011-05-17 | Nalco Company | Fatty acid by-products and methods of using same |
| US7837891B2 (en) | 2006-02-16 | 2010-11-23 | Nalco Company | Fatty acid by-products and methods of using same |
| EP2091654A1 (en) * | 2006-12-06 | 2009-08-26 | Shell Internationale Research Maatschappij B.V. | Normal and iso parafines with low content of aromatics, sulphur and nitrogen as collector for froth flotation |
| US9752283B2 (en) | 2007-09-12 | 2017-09-05 | Ecolab Usa Inc. | Anionic preflocculation of fillers used in papermaking |
| US8088213B2 (en) | 2007-09-12 | 2012-01-03 | Nalco Company | Controllable filler prefloculation using a dual polymer system |
| US8088250B2 (en) | 2008-11-26 | 2012-01-03 | Nalco Company | Method of increasing filler content in papermaking |
| WO2009091850A1 (en) | 2008-01-15 | 2009-07-23 | Georgia-Pacific Chemicals Llc | Method for the beneficiation of coal |
| WO2009099731A1 (en) * | 2008-02-05 | 2009-08-13 | Georgia-Pacific Chemicals Llc | Method for the froth flotation of coal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4589980A (en) * | 1982-10-14 | 1986-05-20 | Sherex Chemical Company, Inc. | Promoters for froth flotation of coal |
| DE4039109A1 (en) * | 1990-12-07 | 1992-06-11 | Metallgesellschaft Ag | METHOD FOR TREATING CONTAMINATED SOILS |
| US5443158A (en) * | 1992-10-02 | 1995-08-22 | Fording Coal Limited | Coal flotation process |
| US6409022B1 (en) * | 1998-05-27 | 2002-06-25 | Cytec Technology Corp. | Mineral collector compositions and processes for making and using same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2312466A (en) * | 1940-02-08 | 1943-03-02 | American Cyanamid Co | Oxygen-bearing ore flotation |
| US6068131A (en) * | 1998-07-13 | 2000-05-30 | The Board Of Control Of Michigan Technological University | Method of removing carbon from fly ash |
| WO2000009268A1 (en) * | 1998-08-11 | 2000-02-24 | Versitech, Inc. | Flotation of sulfide mineral species with oils |
-
2003
- 2003-05-07 DE DE10320191A patent/DE10320191A1/en not_active Withdrawn
-
2004
- 2004-05-04 WO PCT/EP2004/004692 patent/WO2004098782A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4589980A (en) * | 1982-10-14 | 1986-05-20 | Sherex Chemical Company, Inc. | Promoters for froth flotation of coal |
| DE4039109A1 (en) * | 1990-12-07 | 1992-06-11 | Metallgesellschaft Ag | METHOD FOR TREATING CONTAMINATED SOILS |
| US5443158A (en) * | 1992-10-02 | 1995-08-22 | Fording Coal Limited | Coal flotation process |
| EP0662865B1 (en) * | 1992-10-02 | 1997-04-02 | Fording Coal Limited | Coal flotation process |
| US6409022B1 (en) * | 1998-05-27 | 2002-06-25 | Cytec Technology Corp. | Mineral collector compositions and processes for making and using same |
Non-Patent Citations (2)
| Title |
|---|
| Fettsäuren, Dokumentkennung RD-06-00664 in Internet unter http://www.roempp.com, Georg Thieme Verlag, 2004, Tab.1 und "Verwendung" * |
| Fettsäuren, Dokumentkennung RD-06-00664 in Internet unter http://www.roempp.com, Georg Thieme Verlag, 2004, Tab.1 und "Verwendung"; |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008014722A1 (en) | 2007-12-05 | 2009-07-30 | Kronos International, Inc. | Recovering coke and titanium dioxide from cyclone dust from the carbochlorination of titanium materials comprises two-stage flotation |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004098782A1 (en) | 2004-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2008265790B2 (en) | Methyl isobutyl carbinol mixture and methods of using the same | |
| Arnold et al. | The effect of clay slimes on coal flotation, part I: The nature of the clay | |
| CN105612003B (en) | Collecting agent for mineral floating | |
| DE10320191A1 (en) | Use of fatty acid alkyl esters as flotation agents | |
| US7624878B2 (en) | Fatty acid by-products and methods of using same | |
| US4309282A (en) | Process of phosphate ore beneficiation in the presence of residual organic polymeric flocculants | |
| US10307770B2 (en) | Method for the benificiation of coal | |
| US2695101A (en) | Frothing agents for the flotation of ores and coal | |
| DE102008056338A1 (en) | Flotation reagent for siliceous minerals | |
| US20120132844A1 (en) | Process and Composition for Froth Flotation | |
| US10293345B2 (en) | Collector compositions and methods of using thereof | |
| US20070187300A1 (en) | Fatty acid by-products and methods of using same | |
| US20080093267A1 (en) | Fatty acid by-products and methods of using same | |
| US20130025410A1 (en) | Collector and frothing agent for flotation based on organic residues to recover metals from minerals by froth flotation, collector and frothing agent recovery process and foaming flotation process that uses the collector and frothing agent | |
| US4196092A (en) | Conditioning agent for froth flotation of fine coal | |
| US1912433A (en) | Mineral concentration | |
| US4090972A (en) | Effective promoter extender for conventional fatty acids in non-sulfide mineral flotation | |
| US1968876A (en) | Composition of matter suitable for use in flotation | |
| Bujnowska | Studies on floatability of petrographic constituents of subbituminous coal | |
| Özbayoğlu | Coal flotation | |
| DE102016117741A1 (en) | Process and plant for the treatment of ash from waste incineration plants | |
| US2607485A (en) | Separation of ferrosilicon from magnetite by froth flotation | |
| DE102012213031A1 (en) | Method of characterizing battery reagent for waterproofing in pulp contained particles containing ground ore, involves performing quantification of content of separated recyclable particles in separated carrier particle batch | |
| DD219398A1 (en) | PROCESS FOR FLYING PYRITE | |
| DE1912306A1 (en) | Process for the preparation of mineral fines by flotation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8139 | Disposal/non-payment of the annual fee |