<\/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: o valor do pH \u00e9 geralmente de cerca de 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 Flota\u00e7\u00e3o de Cassiterita<\/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 de agita\u00e7\u00e3o<\/a> entram no espessador para desidrata\u00e7\u00e3o e passam para o centr\u00edfuga<\/a>. O concentrado da centr\u00edfuga \u00e9 depois esgotado pelo espessante<\/a> e, em seguida, alimentado no tanque de mistura<\/a> para adi\u00e7\u00e3o de medicamentos e polpa\u00e7\u00e3o. Utiliza \u00e1cido salic\u00edlico como coletor, carbonato de s\u00f3dio para ajustar o valor do pH da polpa para 7~8, goma de amoreira como depressor e \u00f3leo n.\u00ba 2 como agente espumante. Selecionar o concentrado de estanho atrav\u00e9s da primeira varredura grosseira, a segunda varredura, a terceira varredura fina e a primeira varredura fina. O min\u00e9rio bruto cont\u00e9m 1.0% 6~1.3% de estanho, o grau do concentrado de flota\u00e7\u00e3o \u00e9 1.3%~16%, e a taxa de recupera\u00e7\u00e3o \u00e9 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>\nDosagem proposta: <\/strong>400-800 g\/tonelada de alimenta\u00e7\u00e3o
\nO m\u00e9todo de fabrico \u00e9<\/strong> a 2-5% aqueous solution (weight ratio), dissolved with 40C warm water.
\n\u00c2mbito de aplica\u00e7\u00e3o:<\/strong> Lamas de estanho de baixa qualidade e esc\u00f3rias de fundi\u00e7\u00e3o, que podem produzir 1,5% de estanho \u00e0 temperatura ambiente (temperatura m\u00ednima de 5\u00b0C) para selecionar mais de 40% de p\u00f3 concentrado de estanho, com uma taxa de recupera\u00e7\u00e3o superior a 70%.
\nFun\u00e7\u00e3o de prote\u00e7\u00e3o ambiental: <\/strong>O agente \u00e9 pouco t\u00f3xico, amigo do ambiente e das pessoas e f\u00e1cil de biodegradar.<\/p>\nCaracter\u00edsticas do produto<\/strong><\/p>\n\n- Propriedades: O produto \u00e9 um s\u00f3lido pulverulento de cor-de-rosa a vermelho-alaranjado, ligeiramente sol\u00favel em \u00e1gua, facilmente sol\u00favel em solu\u00e7\u00e3o alcalina e est\u00e1vel.<\/li>\n
- New agent for selection efficiency.<\/li>\n
- O padr\u00e3o farmac\u00eautico \u00e9 simples e o custo \u00e9 baixo;<\/li>\n
- Amigo do ambiente.<\/li>\n<\/ol>\n
Em determinadas condi\u00e7\u00f5es, os colectores combinados t\u00eam uma boa seletividade. Este produto pode formar quelatos est\u00e1veis com estanho<\/a>, tungst\u00e9nio<\/a>, terras raras, cobre<\/a>, ferro<\/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
Conclus\u00e3o<\/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: o valor do pH \u00e9 geralmente de cerca de 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 Flota\u00e7\u00e3o de Cassiterita<\/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 de agita\u00e7\u00e3o<\/a> entram no espessador para desidrata\u00e7\u00e3o e passam para o centr\u00edfuga<\/a>. O concentrado da centr\u00edfuga \u00e9 depois esgotado pelo espessante<\/a> e, em seguida, alimentado no tanque de mistura<\/a> para adi\u00e7\u00e3o de medicamentos e polpa\u00e7\u00e3o. Utiliza \u00e1cido salic\u00edlico como coletor, carbonato de s\u00f3dio para ajustar o valor do pH da polpa para 7~8, goma de amoreira como depressor e \u00f3leo n.\u00ba 2 como agente espumante. Selecionar o concentrado de estanho atrav\u00e9s da primeira varredura grosseira, a segunda varredura, a terceira varredura fina e a primeira varredura fina. O min\u00e9rio bruto cont\u00e9m 1.0% 6~1.3% de estanho, o grau do concentrado de flota\u00e7\u00e3o \u00e9 1.3%~16%, e a taxa de recupera\u00e7\u00e3o \u00e9 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
Dosagem proposta: <\/strong>400-800 g\/tonelada de alimenta\u00e7\u00e3o
\nO m\u00e9todo de fabrico \u00e9<\/strong> a 2-5% aqueous solution (weight ratio), dissolved with 40C warm water.
\n\u00c2mbito de aplica\u00e7\u00e3o:<\/strong> Lamas de estanho de baixa qualidade e esc\u00f3rias de fundi\u00e7\u00e3o, que podem produzir 1,5% de estanho \u00e0 temperatura ambiente (temperatura m\u00ednima de 5\u00b0C) para selecionar mais de 40% de p\u00f3 concentrado de estanho, com uma taxa de recupera\u00e7\u00e3o superior a 70%.
\nFun\u00e7\u00e3o de prote\u00e7\u00e3o ambiental: <\/strong>O agente \u00e9 pouco t\u00f3xico, amigo do ambiente e das pessoas e f\u00e1cil de biodegradar.<\/p>\nCaracter\u00edsticas do produto<\/strong><\/p>\n
- \n
- Propriedades: O produto \u00e9 um s\u00f3lido pulverulento de cor-de-rosa a vermelho-alaranjado, ligeiramente sol\u00favel em \u00e1gua, facilmente sol\u00favel em solu\u00e7\u00e3o alcalina e est\u00e1vel.<\/li>\n
- New agent for selection efficiency.<\/li>\n
- O padr\u00e3o farmac\u00eautico \u00e9 simples e o custo \u00e9 baixo;<\/li>\n
- Amigo do ambiente.<\/li>\n<\/ol>\n
Em determinadas condi\u00e7\u00f5es, os colectores combinados t\u00eam uma boa seletividade. Este produto pode formar quelatos est\u00e1veis com estanho<\/a>, tungst\u00e9nio<\/a>, terras raras, cobre<\/a>, ferro<\/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
Conclus\u00e3o<\/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