Method for deeply removing cadmium in crude antimony refining process
A refining process, crude antimony technology, applied in the field of deep cadmium removal in the crude antimony refining process, can solve the problem of poor cadmium removal effect in crude antimony refining, achieve moderate fluidity, good impurity removal effect, and high slag removal efficiency
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Embodiment 1
[0027] In this embodiment, the crude antimony is refined, please refer to figure 1 As shown, the specific process is as follows:
[0028] Crude antimony smelting: Take crude antimony and add it to the reverberatory furnace, raise the temperature to 950°C, and hold for 8.4 minutes to completely melt the crude antimony to obtain antimony water. The volume of antimony water is measured simultaneously to be 0.292m 3 ;
[0029] Preparation of impurity remover: Take phosphoric acid and phosphorus pentoxide and stir them separately, and blow and dry them with dry nitrogen at 40°C for 1 hour, then weigh 40kg of phosphoric acid and 40kg of phosphorus pentoxide, add them to the stirrer, and set the temperature at 240r / Stir for 30min at min speed to make impurity remover;
[0030] One-time slagging: Add impurity remover to the chemical box above the blowing pipe, blow preheated air and 70% impurity remover from the bottom of the antimony water through the blowing pipe, control the tem...
Embodiment 2
[0035] In this embodiment, the crude antimony is refined, please refer to figure 1 As shown, the specific process is as follows:
[0036] Crude antimony smelting: Take crude antimony and add it to the reverberatory furnace, raise the temperature to 970°C, and hold for 8 minutes to completely melt the crude antimony to obtain antimony water. The volume of antimony water is measured simultaneously to be 0.302m 3 ;
[0037] Preparation of impurity remover: take phosphoric acid and phosphorus pentoxide and stir them separately, and blow and dry them with dry nitrogen at 40°C for 1 hour, then weigh 160kg of phosphoric acid and 10kg of phosphorus pentoxide, add them to the stirrer, and set the temperature at 660r / Stir at min speed for 10 min to make impurity remover;
[0038] One-time slagging: Add impurity remover to the chemical box above the blowing pipe, blow preheated air and 72% impurity remover from the bottom of the antimony water through the blowing pipe, control the tem...
Embodiment 3
[0043] In this embodiment, the crude antimony is refined, please refer to figure 1 As shown, the specific process is as follows:
[0044] Crude antimony smelting: Take crude antimony and add it to the reverberatory furnace, raise the temperature to 980°C, and hold for 7.4 minutes to completely melt the crude antimony to obtain antimony water. The volume of antimony water is measured simultaneously to be 0.305m 3 ;
[0045] Preparation of impurity removal agent: take phosphoric acid and phosphorus pentoxide and stir them separately, and blow and dry them with dry nitrogen at 40°C for 1 hour, then weigh 100kg of phosphoric acid and 26kg of phosphorus pentoxide, add them to the stirrer, and set the temperature at 360r / Stir for 20min at min speed to make impurity remover;
[0046] One-time slagging: Add impurity remover to the chemical box above the blowing pipe, blow preheated air and 75% impurity remover from the bottom of the antimony water through the blowing pipe, control ...
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