Application of hydroxyethyl starch ether to fluorite ore flotation
A technology of hydroxyethyl starch ether and fluorite ore, applied in flotation, solid separation and other directions, can solve the problem of difficult separation of fluorite, calcite, barite gangue minerals, low effective recovery rate, and quality of flotation concentrate. To achieve the effect of improving the comprehensive utilization level of resources, reducing environmental pollution, and improving the quality and recovery rate
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Embodiment 1
[0019] The flotation test is carried out by XFGⅡ hanging tank flotation machine. First, add 2g of fluorite or calcite or barite pure minerals to the flotation tank, then add 35ml of distilled water to stir and adjust the slurry, and use HCl or NaOH to adjust the pH of the slurry to 9. And stir, then add hydroxyethyl starch ether inhibitor 20mg / L and stir for 5min, sodium oleate 20mg / L, and then scrape. After the flotation test, the foam product is filtered, dried, weighed, assayed and the recovery rate calculated.
[0020] The test results of Example 1 are shown in Table 1.
[0021] Table 1 Test comparison results
[0022]
Embodiment 2
[0024] The flotation test is carried out by XFGⅡ hanging tank flotation machine. First, add 2g of fluorite or calcite or barite pure minerals to the flotation tank, then add 35ml of distilled water to stir and adjust the slurry, and use HCl or NaOH to adjust the pH of the slurry to 11. And stir, then add hydroxyethyl starch ether inhibitor 60mg / L and stir for 2min, sodium oleate 40mg / L, and then scrape bubbles. After the flotation test, the foam product is filtered, dried, weighed, assayed and the recovery rate calculated.
[0025] The test results of Example 2 are shown in Table 2.
[0026] Table 2 Test comparison results
[0027]
Embodiment 3
[0029] The flotation test was carried out with XFGⅡ type hanging tank flotation machine. First, 1g of fluorite and 1g of barite were added to the flotation tank, then 35ml of distilled water was added to stir the slurry, and the pH of the pulp was adjusted to 9 with HCl or NaOH and stirred, and then Add hydroxyethyl starch ether inhibitor 60mg / L and stir for 3min, sodium oleate 100mg / L in turn, then scrape bubbles again, artificially mix ore and separate by flotation once. After the flotation test, the foam product is filtered, dried, weighed, assayed and the recovery rate calculated.
[0030] Example 3 test results are shown in Table 3.
[0031] Table 3 test results
[0032] Inhibitor
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