Tungsten Flotation Inhibitor—Modified Sodium Silicate
Inhibitor as well as known retarder, it can retardant or reduce the chemical reaction speed of the material, the function is the same as the negative catalyst. Tungsten flotation inhibitor can be divided into two types: Organic inhibitor and inorganic inhibitor.
The most commonly used for modified sodium silicate inorganic inhibitors, metal ion+sodium silicate, ammonium salt, sodium silicate, sodium silicofluoride, pyrophosphate, etc. They each have their own strong points. Here introduces a kind of inorganic inhibitors tungsten flotation-modified sodium silicate.
Modified sodium silicate is through the water glass for modification, acidification or the use of other agents in combination with the way to achieve the water glass can improve the inhibitory effect of calcium-containing gangue minerals purposes. Modified sodium silicate is the activator after decomposition of sodium silicate, it can produce a large number of single molecule silicate, the single molecule has a high activity, and it can adsorption on the purpose mineral by selective, forming strong hydrophilic layer, so as to achieve inhibitory effect.
Modified sodium silicate is divided into two categories, physical modification and chemical modification. Physical modified sodium silicate by magnetic field, ultrasonic, high-frequency or heat energy into the system, make the polysilicic acid molecules to homogenization, thus eliminating its aging phenomenon; Chemical modified sodium silicate is fused sodium silicate with other chemicals, some potions itself does not inhibit gangue mineral, but after adding water glass, inhibition effect was like the icing on the cake, has reached the unexpected enhancement.
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