7results about How to "Improve floatability" patented technology

The invention relates to the technical field of barium hydroxide, and discloses a preparation method of barium hydroxide octahydrate. Epoxidized soybean oil and iminodiacetic acid react to obtain a sodium iminodiacetate modified epoxidized soybean oil trapping agent. According to the method, witherite raw ore is used as a raw material, a sodium iminodiacetate modified epoxidized soybean oil trapping agent, an inhibitor and a foaming agent are added for separation and mineral separation, the separation recovery rate of the obtained high-grade witherite reaches 83.7-91.5%, and the grade reaches 57.7-63.8%. The high-grade witherite is used as a barium source, the yield of the prepared barium hydroxide octahydrate reaches 91.0-91.8%, and the purity of the prepared barium hydroxide octahydrate reaches 97.5-98.7%.

The invention provides a high-purity quartz preparation method and product through complexing impurity removal and preferential corrosion co-processing, and the method comprises the following steps: carrying out sand making on quartz raw ore to obtain first quartz particles; performing pre-purification treatment on the first quartz particles to obtain second quartz particles; performing complexing impurity removal on the second quartz particles to obtain third quartz particles; carrying out flotation on the third quartz particles, and cleaning to obtain fourth quartz particles; and carrying out selective corrosion and tailing discarding on the fourth quartz particles, and filtering, washing and drying to obtain the high-purity quartz. According to the preparation method of the high-purity quartz, the requirement on the high-purity quartz raw material is relatively low, and the preparation of a product with higher purity under the same-quality raw material can be realized.

The invention relates to a flotation separation method for refractory mixed lead-zinc ore. The method comprises the steps of lead preferential flotation, lead-zinc bulk flotation, lead-zinc separation flotation and zinc flotation, and a novel sphalerite combined inhibitor composed of zinc sulfate, sodium cyanurate, thiourea, polyferric chloride and sodium carbonate is added during lead-zinc separation flotation. The method realizes efficient recovery of compact dip-dyed and fine vein dip-dyed symbiotic complex refractory mixed lead-zinc ores, and has wide industrial application and popularization prospects.

The application of PCE-11 as a modifier in the flotation separation of brucite and serpentine relates to the field of brucite beneficiation and purification technology. This invention provides a flotation separation method for brucite and serpentine using PCE-11 as a modifier. By introducing PCE-11, the difference in floatability between brucite and serpentine during flotation is amplified, achieving effective separation of brucite and the gangue mineral serpentine. This invention has advantages such as high efficiency, low cost, no pollution, and simple process.

The present invention belongs to the field of mineral processing technology, and particularly relates to a cascaded mineral processing technology for precious metals. The method adopts a combination of multi-stage flash flotation and preferential flotation. Under the action of a trace amount of special reagents, the method uses the technical means of grinding and selecting to carry out cascade recovery of precious metal minerals with different floatability. While avoiding the loss of the monomer-dissociated precious metal mineral particles due to over-grinding, the target minerals with good floatability and early monomer dissociation are preferentially recovered as much as possible to ensure their quality, and at the same time, the interference of uneven embedded particle size on the flotation process of precious metals is reduced, realizing the technical concept of "collecting as much as possible, collecting as early as possible, and increasing environmental protection". Compared with the prior art, the present invention effectively avoids the loss of the monomer-dissociated precious metal mineral particles due to over-grinding, and reduces the workload of subsequent selection operations. It not only improves the flotation efficiency of the target minerals, reduces the loss of precious metal minerals in tailings, but also improves the comprehensive utilization rate of resources.

The invention provides a flotation method of micro-fine-particle molybdenite, which comprises the following steps: adding water into micro-fine-particle molybdenite raw ore, stirring into ore pulp, and then adjusting the pH value of the ore pulp; firstly adding emulsified composite hydrocarbon oil with a certain concentration for size mixing, then adding AEO-3P or AEO-9P for size mixing, and finally adding a foaming agent for size mixing and then carrying out flotation; and carrying out air inflation flotation to obtain foam concentrate products and tailings. According to the combined collecting agent, the hydrophobicity of surfaces and edges of molybdenite can be regulated and controlled at the same time, the floatability of micro-fine particle molybdenite is remarkably improved, and the compatibility among all agent components is good. The collecting effect of the combined collecting agent is obviously better than that of the single emulsified hydrocarbon oil or anionic surfactant, and the combined collecting agent is small in dosage and low in cost.

The invention relates to the field of phosphorite desilicication trapping agents, in particular to a preparation method and application of an acyl quaternary ammonium salt desilicication trapping agent, N, N-dimethyl dodecyl amine and epichlorohydrin react to obtain a compound A, and then N-fatty acylation-O-hydroxypropyl chitosan and the compound A react to obtain the acyl quaternary ammonium salt desilicication trapping agent. The acyl quaternary ammonium salt desilicication trapping agent prepared by the method is suitable for acidic conditions, good in flotation effect, low in cost, low in toxicity, easy to degrade and amphiphilic.