<\/p>\n
The Necessity of Cassiterite Flotation<\/h2>\nChallenges in Cassiterite Beneficiation<\/h3>\n\n- Natural Brittleness<\/strong> \u2013 Cassiterite readily forms slimes (<0.04 mm) during mining and processing, rendering gravity separation inefficient for fine particles.<\/li>\n
- Complex Ore Compositions<\/strong> \u2013 Tin ores often contain sulfide minerals (e.g., pyrrhotite, arsenopyrite) and silicate gangue, requiring selective separation.<\/li>\n
- Economic & Environmental Drivers<\/strong> \u2013 Flotation recovers tin from low-grade tailings (0.3\u20131.5% Sn), reducing waste and improving resource utilization.<\/li>\n<\/ul>\n
Key Flotation Parameters<\/h3>\n
1. Collectors<\/strong><\/p>\nVarious fatty acids and their soaps easily capture cassiterite. Therefore, collectors can use oleic acid, tar oil, oxidized white wax soap, nylon 1010 bottom, alkyl sulfate, alkyl sulfonate, sulfosuccinate, etc. Experimental studies have shown that cassiterite flotation with formazan, benzylic acid, and ethylene sometimes yields better results.<\/p>\n
2. pH Optimization<\/strong><\/p>\n\n- \u00c1cido oleico: el valor del pH suele estar en torno a 9,0~9,5.<\/li>\n
- A: The pH value of the rough selection is generally 5~6, and it can reduce the pH value of the selected one to 2.5~4.0.<\/li>\n
- When adjusting the pH of pulp, chemicals such as sodium carbonate and sulfuric acid are often used.<\/li>\n
- During cassiterite flotation, to suppress the associated silicate ore, calcium magnesium ore, and wolframite, water glass, sodium hexametaphosphate, carboxymethyl cellulose, and oxalic acid.<\/li>\n<\/ul>\n
3. Feed Preparation<\/strong><\/p>\n\n- Pre-remove ultrafines (<0.01 mm) to reduce reagent consumption.<\/strong> The flotation material is generally gravity tailings less than 0.04mm, and the sludge less than 0.01mm is removed first.<\/li>\n
- Desulfurize sulfide-rich ores antes de<\/em> tin flotation to avoid concentrate contamination.<\/strong> If the flotation ore is vein tin ore, it is often accompanied by sulfide deposits of iron, arsenic, antimony, lead, copper, zinc, and other metals. At this moment, it should first use the sulfide deposit activator to separate the sulfide deposit. Then, flotation of cassiterite to avoid sulfide contamination of the cassiterite concentrate.<\/li>\n<\/ul>\n
![\"m\u00e1quina](\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2018\/02\/flotation-machine1.jpg\")
<\/a><\/h2>\nPlanta de flotaci\u00f3n de casiterita<\/h2>\n
The raw ore of tin ore is a high and medium-temperature hydrothermal cassiterite sulfide deposit. The composition of mineral deposits is messy. Metal deposits include pyrrhotite, magnetite, arsenopyrite, bismuthite, galena, sphalerite, chalcopyrite, etc. Non-metal deposits include carbonate, silicic acid, etc., salts, and halides. Cassiterite is yellowish-brown and black and is embedded in fine particles. Most of it is embedded in pyrrhotite in powder form, and a small part is scattered in magnetite and skarn deposits in granular form. The largest grain is 0.55mm, and the smallest is 0.002mm, generally between 0.15~0.02mm.<\/p>\n
The feed of cassiterite flotation is the tailings after desulfurization, iron removal, and shaking table processing. The tailings of the mesa vibrante<\/a> entrar en el espesador para la deshidrataci\u00f3n y pasar al centrifugadora<\/a>. El concentrado centrifugado se evacua por el espesante<\/a> y luego se introduce en el tanque de mezcla<\/a> para a\u00f1adir medicamentos y pulpa. Utiliza \u00e1cido salic\u00edlico como colector, carbonato s\u00f3dico para ajustar el pH de la pulpa a 7~8, goma de morera como depresor y aceite n\u00ba 2 como agente espumante. Seleccionar el concentrado de esta\u00f1o mediante el primer barrido grueso, el segundo barrido, el tercer barrido fino y el primer barrido fino. El mineral bruto contiene 1,0% 6~1,3% de esta\u00f1o, la ley del concentrado de flotaci\u00f3n es de 1,3%~16%, y la tasa de recuperaci\u00f3n es de 72%~76%.<\/p>\nThe practice has shown that low-toxic salicylic enteric acid can completely replace the highly toxic swollen acid, significantly reducing the environmental pollution problems in the production and use of pharmaceuticals.<\/p>\n
The flotation function for tin extraction from tin sludge and smelting slag: it has excellent collection and selectivity. It can replace the traditional medicament benzyl swollen acid for tin selection, overcoming the defects of benzylic swollen acid, such as preciousness and high toxicity.<\/strong><\/p>\nDosis propuesta: <\/strong>400-800 g\/tonelada de alimentaci\u00f3n
\nEl m\u00e9todo de fabricaci\u00f3n es<\/strong> a 2-5% aqueous solution (weight ratio), dissolved with 40C warm water.
\n\u00c1mbito de aplicaci\u00f3n:<\/strong> Lodos y escorias de fundici\u00f3n de esta\u00f1o de baja calidad, que pueden hacer 1,5% de esta\u00f1o a temperatura ambiente (temperatura m\u00ednima 5\u00b0C) para seleccionar m\u00e1s de 40% de polvo de concentrado de esta\u00f1o, con una tasa de recuperaci\u00f3n de m\u00e1s de 70%.
\nFunci\u00f3n de protecci\u00f3n del medio ambiente: <\/strong>El agente es poco t\u00f3xico, respetuoso con las personas y el medio ambiente y f\u00e1cil de biodegradar.<\/p>\nCaracter\u00edsticas del producto<\/strong><\/p>\n\n- Propiedades: El producto es un s\u00f3lido pulverulento de color rosa a rojo anaranjado, ligeramente soluble en agua, f\u00e1cilmente soluble en soluci\u00f3n alcalina y estable.<\/li>\n
- New agent for selection efficiency.<\/li>\n
- La norma farmac\u00e9utica es sencilla, y el coste, bajo;<\/li>\n
- Respetuoso con el medio ambiente.<\/li>\n<\/ol>\n
En determinadas condiciones, los colectores combinados presentan una buena selectividad. Este producto puede formar quelatos estables con esta\u00f1o<\/a>, tungsteno<\/a>tierras raras, cobre<\/a>, hierro<\/a>, and other metals. And it forms unstable chelates with alkaline earth metals and alkali metals. Therefore, the combination drug used in the flotation operation of some metal deposits can get a good separation effect. A combination of medications with flotation weight can achieve a very excellent result. Generally, the total recovery can reach more than 85%.<\/p>\n <\/p>\n
Conclusi\u00f3n<\/h2>\n
- \n
- Natural Brittleness<\/strong> \u2013 Cassiterite readily forms slimes (<0.04 mm) during mining and processing, rendering gravity separation inefficient for fine particles.<\/li>\n
- Complex Ore Compositions<\/strong> \u2013 Tin ores often contain sulfide minerals (e.g., pyrrhotite, arsenopyrite) and silicate gangue, requiring selective separation.<\/li>\n
- Economic & Environmental Drivers<\/strong> \u2013 Flotation recovers tin from low-grade tailings (0.3\u20131.5% Sn), reducing waste and improving resource utilization.<\/li>\n<\/ul>\n
Key Flotation Parameters<\/h3>\n
1. Collectors<\/strong><\/p>\n
Various fatty acids and their soaps easily capture cassiterite. Therefore, collectors can use oleic acid, tar oil, oxidized white wax soap, nylon 1010 bottom, alkyl sulfate, alkyl sulfonate, sulfosuccinate, etc. Experimental studies have shown that cassiterite flotation with formazan, benzylic acid, and ethylene sometimes yields better results.<\/p>\n
2. pH Optimization<\/strong><\/p>\n
- \n
- \u00c1cido oleico: el valor del pH suele estar en torno a 9,0~9,5.<\/li>\n
- A: The pH value of the rough selection is generally 5~6, and it can reduce the pH value of the selected one to 2.5~4.0.<\/li>\n
- When adjusting the pH of pulp, chemicals such as sodium carbonate and sulfuric acid are often used.<\/li>\n
- During cassiterite flotation, to suppress the associated silicate ore, calcium magnesium ore, and wolframite, water glass, sodium hexametaphosphate, carboxymethyl cellulose, and oxalic acid.<\/li>\n<\/ul>\n
3. Feed Preparation<\/strong><\/p>\n
- \n
- Pre-remove ultrafines (<0.01 mm) to reduce reagent consumption.<\/strong> The flotation material is generally gravity tailings less than 0.04mm, and the sludge less than 0.01mm is removed first.<\/li>\n
- Desulfurize sulfide-rich ores antes de<\/em> tin flotation to avoid concentrate contamination.<\/strong> If the flotation ore is vein tin ore, it is often accompanied by sulfide deposits of iron, arsenic, antimony, lead, copper, zinc, and other metals. At this moment, it should first use the sulfide deposit activator to separate the sulfide deposit. Then, flotation of cassiterite to avoid sulfide contamination of the cassiterite concentrate.<\/li>\n<\/ul>\n
<\/a><\/h2>\nPlanta de flotaci\u00f3n de casiterita<\/h2>\n
The raw ore of tin ore is a high and medium-temperature hydrothermal cassiterite sulfide deposit. The composition of mineral deposits is messy. Metal deposits include pyrrhotite, magnetite, arsenopyrite, bismuthite, galena, sphalerite, chalcopyrite, etc. Non-metal deposits include carbonate, silicic acid, etc., salts, and halides. Cassiterite is yellowish-brown and black and is embedded in fine particles. Most of it is embedded in pyrrhotite in powder form, and a small part is scattered in magnetite and skarn deposits in granular form. The largest grain is 0.55mm, and the smallest is 0.002mm, generally between 0.15~0.02mm.<\/p>\n
The feed of cassiterite flotation is the tailings after desulfurization, iron removal, and shaking table processing. The tailings of the mesa vibrante<\/a> entrar en el espesador para la deshidrataci\u00f3n y pasar al centrifugadora<\/a>. El concentrado centrifugado se evacua por el espesante<\/a> y luego se introduce en el tanque de mezcla<\/a> para a\u00f1adir medicamentos y pulpa. Utiliza \u00e1cido salic\u00edlico como colector, carbonato s\u00f3dico para ajustar el pH de la pulpa a 7~8, goma de morera como depresor y aceite n\u00ba 2 como agente espumante. Seleccionar el concentrado de esta\u00f1o mediante el primer barrido grueso, el segundo barrido, el tercer barrido fino y el primer barrido fino. El mineral bruto contiene 1,0% 6~1,3% de esta\u00f1o, la ley del concentrado de flotaci\u00f3n es de 1,3%~16%, y la tasa de recuperaci\u00f3n es de 72%~76%.<\/p>\n
The practice has shown that low-toxic salicylic enteric acid can completely replace the highly toxic swollen acid, significantly reducing the environmental pollution problems in the production and use of pharmaceuticals.<\/p>\n
The flotation function for tin extraction from tin sludge and smelting slag: it has excellent collection and selectivity. It can replace the traditional medicament benzyl swollen acid for tin selection, overcoming the defects of benzylic swollen acid, such as preciousness and high toxicity.<\/strong><\/p>\n
Dosis propuesta: <\/strong>400-800 g\/tonelada de alimentaci\u00f3n
\nEl m\u00e9todo de fabricaci\u00f3n es<\/strong> a 2-5% aqueous solution (weight ratio), dissolved with 40C warm water.
\n\u00c1mbito de aplicaci\u00f3n:<\/strong> Lodos y escorias de fundici\u00f3n de esta\u00f1o de baja calidad, que pueden hacer 1,5% de esta\u00f1o a temperatura ambiente (temperatura m\u00ednima 5\u00b0C) para seleccionar m\u00e1s de 40% de polvo de concentrado de esta\u00f1o, con una tasa de recuperaci\u00f3n de m\u00e1s de 70%.
\nFunci\u00f3n de protecci\u00f3n del medio ambiente: <\/strong>El agente es poco t\u00f3xico, respetuoso con las personas y el medio ambiente y f\u00e1cil de biodegradar.<\/p>\nCaracter\u00edsticas del producto<\/strong><\/p>\n
- \n
- Propiedades: El producto es un s\u00f3lido pulverulento de color rosa a rojo anaranjado, ligeramente soluble en agua, f\u00e1cilmente soluble en soluci\u00f3n alcalina y estable.<\/li>\n
- New agent for selection efficiency.<\/li>\n
- La norma farmac\u00e9utica es sencilla, y el coste, bajo;<\/li>\n
- Respetuoso con el medio ambiente.<\/li>\n<\/ol>\n
En determinadas condiciones, los colectores combinados presentan una buena selectividad. Este producto puede formar quelatos estables con esta\u00f1o<\/a>, tungsteno<\/a>tierras raras, cobre<\/a>, hierro<\/a>, and other metals. And it forms unstable chelates with alkaline earth metals and alkali metals. Therefore, the combination drug used in the flotation operation of some metal deposits can get a good separation effect. A combination of medications with flotation weight can achieve a very excellent result. Generally, the total recovery can reach more than 85%.<\/p>\n
<\/p>\n
Conclusi\u00f3n<\/h2>\n
- Desulfurize sulfide-rich ores antes de<\/em> tin flotation to avoid concentrate contamination.<\/strong> If the flotation ore is vein tin ore, it is often accompanied by sulfide deposits of iron, arsenic, antimony, lead, copper, zinc, and other metals. At this moment, it should first use the sulfide deposit activator to separate the sulfide deposit. Then, flotation of cassiterite to avoid sulfide contamination of the cassiterite concentrate.<\/li>\n<\/ul>\n
- Pre-remove ultrafines (<0.01 mm) to reduce reagent consumption.<\/strong> The flotation material is generally gravity tailings less than 0.04mm, and the sludge less than 0.01mm is removed first.<\/li>\n
- Complex Ore Compositions<\/strong> \u2013 Tin ores often contain sulfide minerals (e.g., pyrrhotite, arsenopyrite) and silicate gangue, requiring selective separation.<\/li>\n