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连云港化学矿业专科学校近期曾用连云港市五七造纸厂碱法草浆造纸黑液代替水玻璃作抑制剂,对锦屏磷矿矿石进行了实验。选用了一粗一精一扫、精尾与扫精合并返回粗选的闭路流程。粗选用碳酸钠2.0公斤/吨,化皂0.3公斤/吨,黑液2.55公斤/吨;精选用黑液0.3公斤/吨;扫选用化皂0.15公斤/吨。在原矿品位9.05％的情况下,可选得精矿品位30.45％,回收率95％以上。试验流程简单,工艺指标高于锦屏磷矿当前的生产指标。连云港化学矿业专科学校与锦屏磷矿、五七造纸厂进行了讨论,认为在现有基础上还需要进一步做工作,尤其应对如何提高原汁黑液的浓度以及如何加强环保检测等,以便为工业应用创造条件。
Recently, Lianyungang Chemical Mining College Lianyungang City, Fifth Five-seven paper mills have been using alkaline papermaking straw instead of water glass as an inhibitor, Jinping phosphate ore experiments. Selected a rough sweep, fine tail and sweep together and return to the routed closed-circuit process. Crude selection of sodium carbonate 2.0 kg / ton, soap 0.3 kg / ton, black liquor 2.55 kg / ton; selection of black liquor 0.3 kg / ton; sweep selection of soap 0.15 kg / ton. In the case of ore grade 9.05%, the concentrate grade of 30.45% is optional, and the recovery rate is above 95%. Test process is simple, process indicators higher than the current Jinping phosphate production indicators. Lianyungang Chemical Mining College and Jinping Phosphate Rock, 57 paper mills were discussed on the basis of the existing still need to do more work, in particular, how to improve the concentration of raw black liquor and how to strengthen environmental testing, in order to Industrial applications to create conditions.