A kind of manganese carbonate ore flotation agent and flotation method
A technology of manganese carbonate ore and flotation agent, which is applied in flotation, solid separation and other directions, can solve the problems of complex flotation process, high cost and complicated procedures, and achieves simplified flotation process, reduced production cost and improved flotation. The effect of efficiency
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Embodiment 1
[0019] The flotation agent is prepared as follows:
[0020] (1) Take 15 grams of soybean oil and 30 ml of distilled water in a three-necked flask, add 0.3 grams of sodium dodecylbenzene sulfonate and stir to dissolve, add 1.5 grams of concentrated sulfuric acid with a mass percentage concentration of 98% dropwise for catalysis, and heat up to 95 Condensate and reflux at ℃ for 15 hours, cool and separate the liquid, add enough absolute ethanol to dissolve the upper oil phase, then separate the liquid again to keep the upper ethanol liquid, and remove the ethanol by rotary evaporation to obtain A.
[0021] (2) Weigh 2.8g of hydroxylamine hydrochloride and place it in a round-bottomed flask, add 10ml of ethanol, cool down to about 0°C in an ice-water bath, add 1.61g of NaOH, stir and dissociate for 0.5 hours, filter, and wash the filtrate with an appropriate amount of methanol to obtain Filtrate B.
[0022] (3) Transfer the filtrate B to a round bottom flask, heat to 30°C, slowl...
Embodiment 2
[0024] The flotation agent is prepared as follows:
[0025] (1) Take 15g of soybean oil and 45ml of distilled water in a three-necked flask, add 0.3g of Tween 80 and stir to dissolve, add 1.5g of concentrated sulfuric acid with a mass percentage concentration of 78% drop by drop, heat up to 95°C, condense and reflux for 15 hours, Cool and separate the liquid, add an appropriate amount of absolute ethanol to dissolve the upper layer, then separate the liquid again to keep the upper layer, and remove the solvent by rotary evaporation to obtain A.
[0026] (2) Weigh 3.5g of hydroxylamine hydrochloride into a round-bottomed flask, add 10ml of ethanol, cool to about 0°C in an ice-water bath, add 2.4g of NaOH, stir for 1 hour, filter, and wash with an appropriate amount of methanol to obtain filtrate B.
[0027] (3) Transfer the filtrate B to a round bottom flask, heat to 45°C, slowly add A dropwise, stir for 2 hours, add an appropriate amount of NaOH solution until pH = 8, and evap...
Embodiment 3
[0029] The flotation agent is prepared as follows:
[0030] (1) Take 15g of soybean oil and 60ml of distilled water in a three-necked flask, add 0.6g of sodium dodecylbenzenesulfonate and stir to dissolve, add 2.25g of concentrated sulfuric acid with a concentration of 98% by mass dropwise, and heat up to 95°C Condensate and reflux for 10 hours, cool and separate the liquid, add an appropriate amount of absolute ethanol to dissolve the upper layer, then separate again to keep the upper layer, and remove the solvent by rotary evaporation to obtain A.
[0031](2) Weigh 5.6g of hydroxylamine sulfate into a round-bottomed flask, add 10ml of ethanol, cool to about 0°C in an ice-water bath, add 4.8g of NaOH, stir for 0.5 hours, filter, and wash with an appropriate amount of methanol to obtain filtrate B.
[0032] (3) Transfer the filtrate B to a round bottom flask, heat to 50°C, slowly add A dropwise, stir for 2 hours, add an appropriate amount of NaOH solution until pH = 7, and eva...
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