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When using sodium sulfide/sulphide as vulcanizing agent should pay attention to fo-Tianjin Damon?
A:Using sodium sulfide/sulphide as vulcanizing agent, Tianjin Damon will strictly control the dosage and slurry pH value, pulp temperature and mixing time.
(1) Must be properly dosage.Inadequate consumption for sulfide minerals;Dosage is too large, the sulfide mineral inhibition by excess sodium sulfide/sulphide-Tianjin Damon.(2) A variety of mineral sulfide/sulphide best slurry pH value range that is different.Practice has proved that cerussite in pH = 9 ~ 10 fastest sulfide/sulphide, malachite in the pH = 8.5 ~ 9.5 curing effect is best-Tianjin Damon.
(3) pulp temperature has obvious effect on curing reaction and curing rate is usually with the rise of temperature and speed up-Tianjin Damon.
(4) must be properly mixing time.Mixing time is long, the mineral surface sulfide/sulphide film thickness, good for flotation.But such as mixing time is too long, sodium sulfide/sulphide and mineral sulfide film will be on the surface of the oxidation, reduce the effect of sulfide.Strong agitation causes sulfide/sulphide film falls off, should avoid as far as possible.In order to avoid local high quality score and mixing time is too long, often adopt the method of piecewise partial adding sodium sulfide/sulphide-Tianjin Damon.
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