A beneficiation process for removing calcium from fluorite consists of one roughing and multiple cleaning, in which oleic acid or its substitute is used as collector for roughing, and the mixture of sulfuric acid and acidic water glass is used as inhibitor of calcium-containing minerals, with the ratio of sulfuric acid to acidic water glass being 1: 0.5 ~ 1: 2 and the combined dosage being 0.5 ~1.5 kg/t. The beneficiation process for removing calcium from fluorite provided by the invention has the advantages of high calcium removal efficiency, simple process and low cost, and can select super fluorite concentrate with low calcium carbonate content from fluorite ore with high calcium.
2 natural fluorite fluorescent coating
The processing technology of natural fluorite fluorescent coating includes mineral processing, crushing, preparation, mixing and sintering. The invention has the advantages of simple process and low cost, and can meet the coating requirements of handicrafts and various articles with fluorescent effect requirements.
3. A preparation method of fluorite flotation agent
The invention relates to a preparation method of a fluorite flotation collector, which takes crude fatty acid or mixed fatty acid, an intermediate product produced by oleic acid, as a raw material, adds concentrated sulfuric acid accounting for 3%-65% of the weight of the fatty acid for sulfation reaction, and then adds mineral processing foaming agent accounting for 0.4%-3% of the weight of the fatty acid to the reaction product to obtain the product. The invention has low production cost, and the produced fluorite flotation collector has strong collecting ability, good water solubility and dispersibility, and is suitable for fluorite flotation at normal temperature and low temperature.
4 composition of fluorite flotation regulator
A flotation beneficiation process of fluorite ore is an improvement of patented technology. 87 105202. In the prior art, acid and synergist are used as regulators in fluorite flotation. According to the invention, a composition formed by mixing water glass with acid and one or more soluble salts of the acid is used as a regulator to form a composition series, that is, any acid of sulfuric acid, hydrochloric acid, nitric acid, oxalic acid and acetic acid and its corresponding salts can be used, and the combination ratio range is water glass, acid and salt = 1 ~ 2: 1 ~ 5: 0.5 ~ 65. The invention has strong adaptability, good stability, high concentrate quality, high recovery rate and low cost.
5 carbonate-fluorite flotation separation method
The invention provides an economical and effective flotation separation method of carbonate-fluorite ore, which is especially suitable for flotation separation of fluorite ore with high carbonate content. The key is to select an effective carbonate mineral inhibitor-acidified sodium silicate and dosing measures, so that carbonate and fluorite can be separated with high purity under conventional technological conditions.
6 fluorite beneficiation equipment Flotation method of fluorite ore
The invention relates to a method for flotation of fluorite ore by using an adjusting agent. According to the invention, the mixed reagent consisting of acid, alkali and synergist is used as the regulator, oleic acid or sodium oak oil is used as the collector, and the process flow is a composite loop, so that fluorite ore is floated at near neutral and normal temperature, and the obtained fluorite concentrate has high recovery rate, good product quality, low impurity content, low reagent consumption and low cost, and is suitable for various fluorite concentrator applications.