CH171431A - Process for the production of a chrome ore concentrate. - Google Patents
Process for the production of a chrome ore concentrate.Info
- Publication number
- CH171431A CH171431A CH171431DA CH171431A CH 171431 A CH171431 A CH 171431A CH 171431D A CH171431D A CH 171431DA CH 171431 A CH171431 A CH 171431A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- chrome ore
- ore concentrate
- ore
- ores
- Prior art date
Links
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 5
- 239000012141 concentrate Substances 0.000 title claims description 3
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 238000005188 flotation Methods 0.000 claims description 4
- DHRLEVQXOMLTIM-UHFFFAOYSA-N phosphoric acid;trioxomolybdenum Chemical compound O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.OP(O)(O)=O DHRLEVQXOMLTIM-UHFFFAOYSA-N 0.000 claims description 4
- 239000011964 heteropoly acid Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 235000021313 oleic acid Nutrition 0.000 description 2
- 150000002889 oleic acids Chemical class 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- ONIOAEVPMYCHKX-UHFFFAOYSA-N carbonic acid;zinc Chemical compound [Zn].OC(O)=O ONIOAEVPMYCHKX-UHFFFAOYSA-N 0.000 description 1
- 239000008396 flotation agent Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- BJBUTJPAZHELKY-UHFFFAOYSA-N manganese tungsten Chemical compound [Mn].[W] BJBUTJPAZHELKY-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- IYDGMDWEHDFVQI-UHFFFAOYSA-N phosphoric acid;trioxotungsten Chemical compound O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O IYDGMDWEHDFVQI-UHFFFAOYSA-N 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229940045870 sodium palmitate Drugs 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- GGXKEBACDBNFAF-UHFFFAOYSA-M sodium;hexadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCC([O-])=O GGXKEBACDBNFAF-UHFFFAOYSA-M 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052844 willemite Inorganic materials 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- 235000004416 zinc carbonate 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
- B03D1/002—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
- B03D1/008—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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/04—Frothers
-
- 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
- B03D2203/025—Precious metal ores
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Verfahren zur Herstellung eines Chromerzkonzentrates. Bekanntlich lassen sich viele oxydische Erze und auch die meisten Gangartmineralien bei Auswahl der geeigneten Bedingungen mit höheren Öl- oder Fettsäuren und deren Salzen flotieren. Bei vielen oxydischen Erzen ist dem nach die Gefahr vorhanden, dass gleichzeitig mit den nutzbaren Erzteilchen auch die wertlose Gangart an der Flotation mitteilnimmt. Um diesen Übelstand zu umgehen, ging man da zu über, die Sauerstoffatome der Erzoberfläche durch Schwefel zu ersetzen, uni dadurch eine leichtere Schwimmbarkeit der Erze zu errei chen. Diese Sulfidierung der Erzoberfläche lässt sich aber nicht bei allen oxydischen Erzen durchführen, da der Grad der Sulfidierung von der Affinität, des Metalles zu Schwefel abhängig ist.
Als Beispiele nicht sulfidier- barer Erze seien hier genannt: Oxydische Beimengungen enthaltendes Gold, CuSiO3 Sn02, Pb0, Pb02, Pb02, Pb304, ZnCO3, Zn0, <B>s</B> Zn2Si04, Fe203, FeC0s, Fe0.Cr203, ferner alle Mangan-Wolframerze.
Es wurde nun gefunden, dass sich der oben erwähnte Übelstand des gleichzeitigen Schwimmens von Erz und Gangart bei oxydi- schen Chromerzen dadurch vermeiden lässt, dass man dieselben einer Vorbehandlung mit einer Heteropolysäure, wie zum Beispiel Phosphormolybdänsäure, unterwirft.
Bei der nachfolgenden Aufbereitung las sen sich dann die bei der Flotation üblichen Zusätze, wie Öl- und Fettsäuren, sowie die verschiedenen im Handel befindlichen speziel len Flotationsmittel verwenden, wobei nur das Erz obenauf schwimmt, während die Gangart zu Boden sinkt, so dass eine voll ständige Trennung erzielt werden kann.
Es ist natürlich auch möglich, solche Heteropolysäuren zu verwenden, die durch Hinzufügen ihrer Komponenten direkt zur Trübe erhalten wurden. Weiterhin lassen sich die Heteropolysäuren auch in Form ihrer Salze verwenden.
<I>Beispiel</I> 1 kg Chromeisenstein wird in Anwesen heit von Wasser der Einwirkung von<B>0,135</B> gr Phosphormolybdänsäure unterworfen, worauf man als Sammler 0,$-1 gr Na-Palmitat und als Schäumer 0,02 gr Kiefernöl (Pineol) zu setzt. Letztere liefern den Schaum, in wel chem sich- das Erz frei von der Gangart an sammelt. Es empfiehlt sich als weiteren Zu satz 0,1 gr Wasserglas beizufügen, worauf man den Flotationsprozess in bekannter Weise vorsichgehen lässt.
An Stelle der Phosphormolybdänsäure oder ihrer Salze kann man im vorstehenden Bei spiel auch Phosphorwolframsäure verwenden.
Process for the production of a chrome ore concentrate. It is known that many oxidic ores and also most gangue minerals can be floated with higher oleic or fatty acids and their salts if the appropriate conditions are selected. In the case of many oxide ores, there is therefore the risk that the worthless gangue will take part in the flotation at the same time as the usable ore particles. In order to get around this problem, people started to replace the oxygen atoms on the surface of the ore with sulfur in order to make the ore easier to float. However, this sulphidation of the ore surface cannot be carried out with all oxide ores, since the degree of sulphidation depends on the affinity of the metal to sulfur.
Examples of non-sulphidable ores are: gold containing oxide additions, CuSiO3, Sn02, Pb0, Pb02, Pb02, Pb304, ZnCO3, Zn0, Zn2Si04, Fe203, FeC0s, Fe0.Cr203, and more all manganese-tungsten ores.
It has now been found that the above-mentioned inconvenience of the simultaneous swimming of ore and gangue in oxidic chrome ores can be avoided by subjecting them to a pretreatment with a heteropoly acid, such as, for example, phosphomolybdic acid.
In the subsequent processing, the additives customary in flotation, such as oleic and fatty acids, as well as the various special flotation agents available on the market, can then be used, with only the ore floating on top, while the gangue sinks to the bottom, so that one full permanent separation can be achieved.
It is of course also possible to use such heteropolyacids which have been obtained by adding their components directly to the pulp. Furthermore, the heteropolyacids can also be used in the form of their salts.
<I> Example </I> 1 kg of chrome iron stone is subjected to the action of <B> 0.135 </B> gram of phosphomolybdic acid in the presence of water, whereupon $ 0.- 1 gram of sodium palmitate is obtained as a collector and 0.15 as a foamer. Add 02 grams of pine oil. The latter provide the foam in which the ore collects, free from the gangue. It is advisable to add 0.1 gram of water glass as a further addition, after which the flotation process can be carried out in the known manner.
Instead of phosphomolybdic acid or its salts, phosphotungstic acid can also be used in the above example.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH171431T | 1933-08-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH171431A true CH171431A (en) | 1934-08-31 |
Family
ID=4423087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH171431D CH171431A (en) | 1933-08-19 | 1933-08-19 | Process for the production of a chrome ore concentrate. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH171431A (en) |
-
1933
- 1933-08-19 CH CH171431D patent/CH171431A/en unknown
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