Method for reducing viscosity of flotation barite concentrate
A barite and concentrate technology, applied in flotation, solid separation, etc., can solve the problems of barite powder viscosity exceeding, increasing the shear force of barite slurry, etc.
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Embodiment 1
[0016] In Example 1, under the same calcination time and different calcination temperatures, the calcination temperature that can make the barite powder viscosity reach the standard is investigated.
[0017] The test ore sample is barite powder prepared by flotation method, the content of -200 mesh is 95%, the content of barium sulfate is 93.22%, and the density of barite powder is 4.22g / cm 3 , The viscosity of barite powder is 170Pa·s.
[0018] The test steps and procedures are as follows:
[0019] 1) Place 50g of ore sample evenly in a porcelain crucible, the thickness of the ore layer is 1cm. After the temperature of the muffle furnace was raised to 200°C, the temperature was kept constant. Carefully put the open-covered porcelain crucible into the muffle furnace with crucible tongs for firing, and use the crucible tongs to turn the sample to fully contact with the air during the firing process. The ore samples were roasted in the muffle furnace for 15 minutes.
[0020]...
Embodiment 2
[0027] Example 2 is to investigate the shortest time for the ore powder to achieve complete drug removal and the viscosity of the barite powder to reach the standard at different calcination temperatures.
[0028] The test ore sample is barite powder prepared by flotation method, the content of -200 mesh is 95%, the content of barium sulfate is 93.22%, and the density of barite powder is 4.22g / cm 3 , The viscosity of barite powder is 170Pa·s.
[0029] The test steps and procedures are as follows:
[0030] 1) Place 25g of ore sample evenly in a porcelain crucible, and the thickness of the ore layer is 0.5cm. The calcination temperature was set to 400°C, 500°C, and 600°C in sequence.
[0031] 2) After raising the temperature of the muffle furnace to the set temperature, keep the temperature constant. Use crucible tongs to carefully put the open-covered porcelain crucible into the muffle furnace for roasting. At the same roasting temperature, gradually shorten the roasting tim...
Embodiment 3
[0038] A method for reducing the viscosity of flotation barite concentrate, comprising the following steps:
[0039] S1: Take 10g of flotation barite concentrate and put it evenly in the crucible, the concentrate particle size is -200 mesh, accounting for 50%, and the thickness of the ore layer is 0.2cm;
[0040] S2: After raising the temperature of the muffle furnace to 200°C, keep the constant temperature, and use the crucible tongs to put the open-covered porcelain crucible into the muffle furnace for roasting; the roasting time of the ore sample in the muffle furnace is 0.1min;
[0041] S3: Take out the roasted ore sample, after cooling to room temperature, test the drug removal effect with water;
[0042] S4: The barite concentrate after roasting and drug removal is made into a density of 2.50g / cm according to the operation regulations of GBT5005-2010 3 The barite powder was suspended in distilled water, and after stirring and curing for 24 hours, the apparent viscosity ...
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