DE849831C - Processing of coal, graphite or the like according to the foam floating method - Google Patents
Processing of coal, graphite or the like according to the foam floating methodInfo
- Publication number
- DE849831C DE849831C DEE4235A DEE0004235A DE849831C DE 849831 C DE849831 C DE 849831C DE E4235 A DEE4235 A DE E4235A DE E0004235 A DEE0004235 A DE E0004235A DE 849831 C DE849831 C DE 849831C
- Authority
- DE
- Germany
- Prior art keywords
- coal
- flotation
- phenols
- graphite
- processing
- 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
Links
- 239000003245 coal Substances 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 8
- 239000006260 foam Substances 0.000 title claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 3
- 229910002804 graphite Inorganic materials 0.000 title claims description 3
- 239000010439 graphite Substances 0.000 title claims description 3
- 239000003921 oil Substances 0.000 claims description 13
- 150000002989 phenols Chemical class 0.000 claims description 12
- 239000007859 condensation product Substances 0.000 claims description 10
- 241000779819 Syncarpia glomulifera Species 0.000 claims description 6
- 239000001739 pinus spp. Substances 0.000 claims description 6
- 229940036248 turpentine Drugs 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 230000009182 swimming Effects 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims 1
- 238000005188 flotation Methods 0.000 description 16
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000011280 coal tar Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 239000001293 FEMA 3089 Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- 241000208822 Lactuca Species 0.000 description 1
- 235000003228 Lactuca sativa Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008396 flotation agent Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002641 tar oil 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
- B03D1/016—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
- B03D2203/04—Non-sulfide ores
- B03D2203/08—Coal ores, fly ash or soot
Landscapes
- Carbon And Carbon Compounds (AREA)
Description
Aufbereitung von Kohle, Graphit od. dgl. nach dem Schaumschwimmverf ahren Die Verwendung von Phenolen als Schwimmittel bei der Aufbereitung von Kohle nach dem Schaumschwimmverfahren ist bekannt. In Anbetracht des hohen Preises und des wirtschaftlich wertvolleren Einsatzes der Phenole auf anderen Gebieten werden Phenole selten allein als Schwimmittel verwendet, sondern sie werden in fast allen Fällen in Mischung mit billigeren Teerölen, wie Steinkohlenteermittelöl oder ßenzol,#vaschöl od. dgl., benutzt. Auch in Verbindung mit Terpentinölen sind Phenole bereits als Schwimmittel bei der Steinkohlenaufbereitung angewendet worden. Alle diese Schwimmittel zeichnen sich jedoch durch eine mehr oder minder in Erscheinung tretende, verhältnismäßig geringe Sammelwirkung ans, die sich ihrerseits in einem hohen \lengenverbrauch beim Flotationsvorgang auswirkt. Zudem geben alle phenolhaltigen Schwimmittel einen nassen, leicht fließenden Konzentratschaum, der sich infolge Mitreißens von . kolloidalen Ton- und Lettenteilchen wenig gut auf Vakuumfiltern entwässern läßt.Processing of coal, graphite or the like after the Schaumschwimmverf ahren The use of phenols as a floating agent in the processing of coal according to the foam swimming process is known. Considering the high price and the economically more valuable use of phenols in other areas Phenols are rarely used alone as a flotation device; instead, they are used in almost all Cases in a mixture with cheaper tar oils, such as coal tar oil or ßenzol, # vaschöl or the like, used. Phenols are also used in conjunction with turpentine oils Float has been used in coal processing. All of these flotation devices are, however, characterized by a more or less apparent, proportionate low collecting effect, which in turn results in a high level of consumption in Affects the flotation process. In addition, all phenol-containing floating agents give a wet, easy flowing concentrate foam, which is caused by being carried away by. colloidal Clay and lettuce particles are not allowed to drain well on vacuum filters.
Es wurde nun gefunden, daß diese nachhaltige Wirkung der Phenole und der phenolhaltigen Öle bei der SchaumKhwimmaufbereitung von Kohle beseitigt werden kann, wenn gemäß der Erfindung Kondensationsprodukte zwischen polymerisierten Terpentinölen und Phenolen, die durch die Einwirkung von Alkalien kondensiert werden, als Schwimmittel angewandt werden.It has now been found that this lasting effect of the phenols and the phenol-containing oils can be eliminated in the foam khwimm treatment of coal can, if according to the invention, condensation products between polymerized turpentine oils and phenols, which are condensed by the action of alkalis, as flotation agents can be applied.
Der Verlauf der Kondensation muß so gesteuert werden, daß die dabei auftretende Temperaturerhöhung 200 bis 22o° nicht übersteigt, da sonst leicht Verharzungen eintreten. Es hat sich weiter gezeigt, daß die Sammelwirkung dieser Kondensationsprodukte aus polymerisierten Terpentinölen und Phenolen noch gesteigert werden kann, wenn statt der einfachen Phenole alkylierte Phenole mit Seitenketten verwandt werden. An Stelle der fixen Alkalien kann auch wasserfreies Ammoniak als Kondensationsmittel verwandt werden, wobei meist Kondensationsprodukte von geringerer Viskosität erhalten werden.The course of the condensation must be controlled so that the thereby the temperature increase that occurs does not exceed 200 to 22o °, otherwise easy Resin formation occurs. It has also been shown that the collecting effect of this Condensation products from polymerized turpentine oils and phenols increased even further can be if instead of the simple phenols alkylated phenols with side chains be used. Instead of the fixed alkalis, anhydrous ammonia can also be used as Condensation agents are used, with mostly condensation products of minor Viscosity can be obtained.
Die verbesserte Wirkung der Kondensationsprodukte, die aus Phenolen und polymerisierten Terpentinölen unter der Einwirkung von Alkalien entstehen, im Vergleich zu einem phenolhaltigen Steinkohlenteeröl, sei durch folgende Betriebsbeispiele erläutert: Beispiel l In einer Fettkohlenwäsche wurden in einer dem Setzprozeß nachgeschalteten Flotationsanlage Fett-I<ohlenschlämme mit i8 % Asche unter Zusatz von 1250 g/t phenolhaltigem Steinkohlenteermittelöl flotiert. Dabei entfielen eine Flotationskohle mit 8% Asche und Berge mit 69% Asche. Das Kohleausbringen betrug rd. 83,6%. Der Wassergehalt der gefilterten Flotationskohle lag bei 24 bis 25 0/0.The improved effect of the condensation products, which arise from phenols and polymerized turpentine oils under the action of alkalis, compared to a phenol-containing coal tar oil, is illustrated by the following operating examples: 18% ash floated with the addition of 1250 g / t phenol-containing coal tar oil. Flotation coal with 8% ash and mountains with 69% ash were eliminated. The coal output was around 83.6%. The water content of the filtered flotation coal was 24 to 25%.
Nach Einführung eines Kondensationsproduktes aus P-Kresol und Terpentinölpolymerisat, das unter der Einwirkung von flüssigem, wasserfreiem Ammoniak hergestellt worden war, konnten bei einer Zusatzmenge von nur 6oo g/t Flotationsaufgabe in der gleichen Flotationsanlage eine Flotationsko@hle mit 8,5% Asche und Berge mit 79,5% Asche erzielt werden.After introducing a condensation product from P-cresol and turpentine oil polymer, which was produced under the action of liquid, anhydrous ammonia was, with an additional amount of only 600 g / t of flotation feed in the same Flotation plant a flotation coal @ hull with 8.5% ash and mountains with 79.5% ash be achieved.
Das Kohleausbringen stieg in diesem Fall auf 86,7 0/0. Der Wassergehalt der gefilterten Flotationskohle betrug 21 bis 22% H20. Die Filterleistung erhöhte sich bei Verwendung des Kondensationsproduktes um rd. 5o 0/0. Beispiel H In einer Flotationsanlage, in der io t Gasflammkohlenschlämme in der Stunde mit 2i % Asche unter Zusatz von phenolhaltigem Benzolwaschöl flotiert wurden, fielen als Endprodukte eine Flotationskohle mit 7% Asche und Berge mit 65% Asche an. Dabei wurden rd. 1150g Benzolwaschöl pro Tonne Flotationsaufgabe zugesetzt. Das erzielte Kohleausbringen lag bei 75,8'/0, der Wassergehalt der gefilterten Kohle betrug 26 bis 27% H20.In this case, the coal output rose to 86.7%. The water content of the filtered flotation coal was 21 to 22% H20. The filter performance increased when using the condensation product by around 50 0/0. Example H In a Flotation plant in which io t gas flame coal sludge with 2i% ash per hour were floated with the addition of phenol-containing benzene washing oil, fell as end products a flotation coal with 7% ash and mountains with 65% ash. Around 1150g Benzene washing oil added per ton of flotation task. The coal yield achieved was 75.8 '/ 0, the water content of the filtered charcoal was 26 to 27% H20.
Nach Ersatz des phenolhaltigen Benzolwaschöles durch 55o g/t Flotationsaufgabe eines Kondensationsproduktes aus einem Kresolgemisch und' Terpentinölpolymerisat (spezifisches Gewicht o,98), dessen Kondensation durch N atriumhydroxyd bewirkt wurde, wurden aus dem gleichen Gasflammkohlenschlamm eine Flotationskohle mit 7,5 0/0 Asche und Berge mit 78% Asche erhalten.After replacing the phenol-containing benzene washing oil with 55o g / t flotation feed of a condensation product from a cresol mixture and turpentine oil polymer (specific gravity 0.98), the condensation of which is caused by sodium hydroxide became flotation coal with 7.5 from the same gas flame coal sludge 0/0 ash and mountains with 78% ash preserved.
Das Kohleausbringen stieg auf rd. 8o,8 %; der Wassergehalt der gefilterten Flotationskohle sank auf 24 % H2 O.The coal output rose to around 80.8%; the water content of the filtered Flotation coal sank to 24% H2 O.
Die beiden Betriebsbeispiele beweisen eindeutig die überlegene Wirkung der zum Gegenstand der Erfindung gemachten Kondensationsprodukte gegenüber anderen bisher verwandten Schwimmmitteln bei der Kohleaufbereitung. Die Vorteile sind: gesteigertes Kohleausbringen, bessere Filterfähigkeit der Flotationskohle, gesteigerte Filterleistung und damit verbunden geringerer Gewebeverschleiß.The two operational examples clearly demonstrate the superior effect of the condensation products made the subject of the invention over others previously used floating agents in coal processing. The advantages are: increased Coal yield, better filtering capacity of the flotation coal, increased filter performance and the associated lower fabric wear.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE4235A DE849831C (en) | 1951-08-18 | 1951-08-18 | Processing of coal, graphite or the like according to the foam floating method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE4235A DE849831C (en) | 1951-08-18 | 1951-08-18 | Processing of coal, graphite or the like according to the foam floating method |
Publications (1)
Publication Number | Publication Date |
---|---|
DE849831C true DE849831C (en) | 1952-09-18 |
Family
ID=7066198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEE4235A Expired DE849831C (en) | 1951-08-18 | 1951-08-18 | Processing of coal, graphite or the like according to the foam floating method |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE849831C (en) |
-
1951
- 1951-08-18 DE DEE4235A patent/DE849831C/en not_active Expired
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