<\/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- Acide ol\u00e9ique : la valeur du pH est g\u00e9n\u00e9ralement comprise entre 9,0 et 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 avant<\/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
![\"machine](\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2018\/02\/flotation-machine1.jpg\")
<\/a><\/h2>\nUsine de flottation de cassit\u00e9rite<\/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 table \u00e0 secousses<\/a> entrent dans l'\u00e9paississeur pour la d\u00e9shydratation et vont dans le centrifugeuse<\/a>. Le concentr\u00e9 de la centrifugeuse est ensuite \u00e9vacu\u00e9 par l'installation de traitement des eaux us\u00e9es. \u00e9paississeur<\/a> et l'alimente ensuite en r\u00e9servoir de m\u00e9lange<\/a> pour l'ajout de m\u00e9dicaments et la r\u00e9duction en p\u00e2te. Il utilise l'acide salicylique comme collecteur, le carbonate de sodium pour ajuster le pH de la p\u00e2te \u00e0 7~8, la gomme de m\u00fbrier comme d\u00e9presseur et l'huile n\u00b0 2 comme agent moussant. Le concentr\u00e9 d'\u00e9tain est s\u00e9lectionn\u00e9 par le premier balayage grossier, le deuxi\u00e8me balayage, le troisi\u00e8me balayage fin et le premier balayage fin. Le minerai brut contient 1,0% 6~1,3% d'\u00e9tain, la teneur du concentr\u00e9 de flottation est de 1,3%~16%, et le taux de r\u00e9cup\u00e9ration est 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>\nDosage propos\u00e9 : <\/strong>400-800 g\/tonne alimentation
\nLa m\u00e9thode de fabrication est la suivante<\/strong> a 2-5% aqueous solution (weight ratio), dissolved with 40C warm water.
\nChamp d'application :<\/strong> Boues d'\u00e9tain de faible qualit\u00e9 et scories de fusion, qui peuvent produire 1,5% d'\u00e9tain \u00e0 temp\u00e9rature ambiante (temp\u00e9rature minimale de 5\u00b0C) pour s\u00e9lectionner plus de 40% de poudre de concentr\u00e9 d'\u00e9tain, avec un taux de r\u00e9cup\u00e9ration de plus de 70%.
\nFonction de protection de l'environnement : <\/strong>L'agent est peu toxique, respectueux de l'homme et de l'environnement et facilement biod\u00e9gradable.<\/p>\nCaract\u00e9ristiques du produit<\/strong><\/p>\n\n- Propri\u00e9t\u00e9s : Le produit est un solide poudreux de couleur rose \u00e0 rouge-orange, l\u00e9g\u00e8rement soluble dans l'eau, facilement soluble dans une solution alcaline et stable.<\/li>\n
- New agent for selection efficiency.<\/li>\n
- La norme pharmaceutique est simple et le co\u00fbt est faible ;<\/li>\n
- Respectueux de l'environnement.<\/li>\n<\/ol>\n
Dans certaines conditions, les collecteurs combin\u00e9s pr\u00e9sentent une bonne s\u00e9lectivit\u00e9. Ce produit peut former des ch\u00e9lates stables avec \u00e9tain<\/a>, tungst\u00e8ne<\/a>, terres rares, cuivre<\/a>, fer<\/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
Conclusion<\/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
- Acide ol\u00e9ique : la valeur du pH est g\u00e9n\u00e9ralement comprise entre 9,0 et 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 avant<\/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>\nUsine de flottation de cassit\u00e9rite<\/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 table \u00e0 secousses<\/a> entrent dans l'\u00e9paississeur pour la d\u00e9shydratation et vont dans le centrifugeuse<\/a>. Le concentr\u00e9 de la centrifugeuse est ensuite \u00e9vacu\u00e9 par l'installation de traitement des eaux us\u00e9es. \u00e9paississeur<\/a> et l'alimente ensuite en r\u00e9servoir de m\u00e9lange<\/a> pour l'ajout de m\u00e9dicaments et la r\u00e9duction en p\u00e2te. Il utilise l'acide salicylique comme collecteur, le carbonate de sodium pour ajuster le pH de la p\u00e2te \u00e0 7~8, la gomme de m\u00fbrier comme d\u00e9presseur et l'huile n\u00b0 2 comme agent moussant. Le concentr\u00e9 d'\u00e9tain est s\u00e9lectionn\u00e9 par le premier balayage grossier, le deuxi\u00e8me balayage, le troisi\u00e8me balayage fin et le premier balayage fin. Le minerai brut contient 1,0% 6~1,3% d'\u00e9tain, la teneur du concentr\u00e9 de flottation est de 1,3%~16%, et le taux de r\u00e9cup\u00e9ration est 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
Dosage propos\u00e9 : <\/strong>400-800 g\/tonne alimentation
\nLa m\u00e9thode de fabrication est la suivante<\/strong> a 2-5% aqueous solution (weight ratio), dissolved with 40C warm water.
\nChamp d'application :<\/strong> Boues d'\u00e9tain de faible qualit\u00e9 et scories de fusion, qui peuvent produire 1,5% d'\u00e9tain \u00e0 temp\u00e9rature ambiante (temp\u00e9rature minimale de 5\u00b0C) pour s\u00e9lectionner plus de 40% de poudre de concentr\u00e9 d'\u00e9tain, avec un taux de r\u00e9cup\u00e9ration de plus de 70%.
\nFonction de protection de l'environnement : <\/strong>L'agent est peu toxique, respectueux de l'homme et de l'environnement et facilement biod\u00e9gradable.<\/p>\nCaract\u00e9ristiques du produit<\/strong><\/p>\n
- \n
- Propri\u00e9t\u00e9s : Le produit est un solide poudreux de couleur rose \u00e0 rouge-orange, l\u00e9g\u00e8rement soluble dans l'eau, facilement soluble dans une solution alcaline et stable.<\/li>\n
- New agent for selection efficiency.<\/li>\n
- La norme pharmaceutique est simple et le co\u00fbt est faible ;<\/li>\n
- Respectueux de l'environnement.<\/li>\n<\/ol>\n
Dans certaines conditions, les collecteurs combin\u00e9s pr\u00e9sentent une bonne s\u00e9lectivit\u00e9. Ce produit peut former des ch\u00e9lates stables avec \u00e9tain<\/a>, tungst\u00e8ne<\/a>, terres rares, cuivre<\/a>, fer<\/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
Conclusion<\/h2>\n
- Desulfurize sulfide-rich ores avant<\/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