3results about How to "Simplify the flotation process" patented technology

The invention provides a composite flotation reagent for separating feldspar and quartz and a flotation method. The composite flotation reagent for separating the feldspar and the quartz comprises a first flotation agent, a second flotation agent and a third flotation agent, and the first flotation agent comprises, by mass, 20-25 parts of a collecting agent and 1-4 parts of a pH adjusting agent; and the second flotation agent comprises the following components in parts by mass: 6-8 parts of an inhibitor and 1-4 parts of mixed phosphate. According to the method, one-time flotation separation of quartz and feldspar is conducted on the lepidolite tailings through the flotation reagent, quartz fine sand with the SiO2 content higher than 99% can be obtained, the standard requirement of glass industry materials is met, and the effect is close to the flotation separation effect of hydrofluoric acid; therefore, the flotation process is simplified under the condition that the flotation effect is guaranteed, and compared with flotation separation conducted through a hydrofluoric acid method, the influence of flotation separation conducted through the composite flotation reagent for separating feldspar and quartz in the embodiment on the environment is greatly reduced.

The invention discloses a method for resource utilization of clay vanadium-containing shale, and belongs to the field of solid waste resource utilization. Aiming at the situation that the clay vanadium-containing shale cannot be effectively utilized due to the fact that the vanadium grade is low and cannot meet the development and utilization requirements, so that resources are wasted, the vanadium grade in the clay vanadium-containing shale is improved through pre-enrichment, and the method mainly comprises the following process steps: (1) grading without grinding after crushing: crushing the clay vanadium-containing shale to be-(2-4 mm), and crushing the clay vanadium-containing shale to be-(2-4 mm); grinding is not needed, wet screening and grading are carried out with 25-45 [mu] m as the standard, oversize products and undersize products are obtained, and the undersize products are pre-enriched products I; (2) after-grinding three-section full-open-circuit short-process flotation is conducted on oversize products, the oversize products are ground to-74 microns and account for 50%-85%, then three-section full-open-circuit short-process flotation is conducted in the acid environment that the pH of ore pulp ranges from 3 to 4, and flotation concentrate is a pre-enriched product II; the collecting agent is compounded and assembled autonomously, and the novel combined collecting agent comprises the following components in percentage by mass: 50-75% of dodecyl guanidine hydrochloride and 25-50% of isooctyl alcohol. The combined inhibitor comprises the following components in percentage by mass: 30-50% of water glass and 50-70% of sodium fluosilicate.

This invention discloses a method for preparing a composite flotation reagent using biomass hydrothermal liquefaction products, comprising the following steps: Raw material preparation: providing biomass raw materials rich in lipids or proteins; Catalytic hydrothermal liquefaction: placing the biomass raw materials and a composite catalyst in a reactor, reacting at a temperature of 250-350℃ and a pressure of 4-20 MPa, wherein the water content of the biomass raw materials is 70-95%, and the composite catalyst contains alkaline components, metal oxide components, and rare earth element components; Product separation: separating the reaction products into oil and water to obtain bio-crude oil containing amphiphilic molecules; Flotation application: applying the bio-crude oil as a composite flotation reagent to mineral flotation, where the bio-crude oil simultaneously functions as a frother and a collector. This invention uses waste biomass as raw material to prepare a composite flotation reagent with both frother and collector functions, realizing the resource utilization of waste and the green upgrading of flotation reagents, and has the characteristics of wide raw material sources, excellent reagent performance, and environmental friendliness.