45results about How to "Simplify the flotation process" patented technology

The invention belongs to the technical field of preparing low grade hematite ore, in particular to a process for processing a low grade hematite ore. The process comprises the following steps: the ore is ground until monomer separation and then coarse and fine classification is carried out on pulp; coarse grain pulp is subject to reselecting, ferromagnetism and sieving to obtain a part of the concentrate; the fine grain pulp is conveyed to a mixing tank for separating sample, and then is conveyed to a second mixing tank to be mixed with medicine for size mixing; the mixture is pumped to a rough flotation column; the under flows of the rough flotation column is fed to a cleaning flotation column, the under flow of the cleaning flotation column is the ultimate iron ore concentrate; foam of the rough flotation column is conveyed to an one-stage scavenging flotation column by a pump; the under flow of the one-stage scavenging flotation column and the foam of the cleaning flotation column are mixed and return to the rough flotation column, and products of the one-stage scavenging flotation column are final tailings. The process has the beneficial effects of smaller occupation area by replacing a flotation machine with the flotation column, can recycle fine-grade valuable mineral effectively, improve the ultimate concentrate grade, provides reference significance for the mineral separation of the ore of the same type in China, and has obvious economic benefits and social benefits.

The invention provides a low-order coal slime flotation collector compounded with ester aldehyde ether and its preparation method and application. The collector has simple composition and can be used as a low-rank coal slime flotation collector to complete conventional The economical and efficient separation of flotation has the characteristics of small chemical consumption, low flotation cost and high separation efficiency. The low-rank coal slime flotation collector of compound ester aldehyde ether provided by the invention comprises each component of following mass percent: C 10 -C 16 Hydrocarbon oil 60‑85%; C 10 -C 18 Esters 5‑15%; C 5 -C 9 Aldehyde 5‑15%; C 4 -C 10 Ether 5‑15%.

The invention belongs to the field of sulphide ore flotation, and particularly discloses application of a 2-alkyl amino substituted carboxylic acid compound as an inhibitor of iron-containing sulphideore. The invention further provides a sulphide ore floating agent containing the 2-alkyl amino substituted carboxylic acid compound. It is found that the 2-alkyl amino substituted carboxylic acid compound can selectively inhibit the iron-containing sulphide ore in flotation of the sulphide ore such as ferromolybdenum, galvanized iron, leaded iron, copper containing iron and bismuth containing iron, the flotation technological process can be simplified, the agent dosage is reduced, environmental pollution is reduced, and the production cost is reduced.

The present invention relates to a sub-type magnesium sulfate subtype salt lake brine natural evaporation staged ore-forming process, comprising the following steps: (1) pumping brine from a magnesium sulfate subtype salt lake well into a sodium salt pool, naturally evaporating to precipitate sodium chloride, and then When the sharp salt is close to saturation, it is introduced into the adjustment pool, and when the brine point reaches the epsom salt and is about to be precipitated, it is imported into the potassium mixed salt pool; (2) in the potassium mixed salt pool, the brine obtained in step (1) continues to be evaporated naturally, and when the brine is close to light brine The stone is saturated and will be imported into the carnallite pool when it is about to be separated out, and the potassium mixed salt ore is separated out, and the potassium mixed salt ore is separated out, and the potassium mixed salt ore enters the potassium magnesium sulfate fertilizer workshop to produce langbeinite products; (3) in the carnallite In the pool, the brine obtained in step (2) continues to be evaporated naturally, and when the brine reaches the old brine point, it is introduced into the old brine storage tank, and carnallite ore is precipitated, and the carnallite ore enters the potassium chloride workshop to produce potassium chloride products . The invention has the advantages of simple process, low production cost and high sulfur-potassium ratio of potassium mixed salt ore.

The invention relates to a micro-fine particle red magnetic mixed iron ore sorting process characterized by including stage grinding-classification-weak magnetic operation-strong magnetic operation-anionic reverse flotation operation, the anionic reverse flotation is performed by use of a one-coarse, one-fine and large circulation mine returning three-scavenging system. According to the micro-fine particle red magnetic mixed iron ore sorting process, first stage ball-milling is performed, then weak magnetic-strong magnetic separation is performed, excess-grinding is effectively prevented, the effect of the magnetic separation can be ensured; after secondary stage ball-milling, anionic reverse flotation operation is directly performed, the advantage of good micro-fine particle iron ore sorting effect of reverse flotation is full used, by use of the technological process, iron concentrate with the iron grade of 65% and the iron recovery rate of more than 73% can be obtained, the final sorting indicators can be further optimized, and the high recovery rate of the iron concentrate can be ensured.