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44results about How to "Foaming" patented technology

Method for roughing and tailings-discarding of fine rutile ore by multi-stage floatation

InactiveCN101607230AReduce consumptionEffective deslimingFlotationLead nitrateSilicate minerals
The invention provides a method for roughing and tailings-discarding of fine rutile ore by multi-stage floatation, relating to the technique for roughing and tailings-discarding of fine rutile ore by multi-stage floatation and belonging to the technical field of mineral processing engineering. The method of the invention comprises the following steps: firstly, conducting the reverse floatation of rutile by using sodium oleate as a collector according to the characteristics that aluminum sulfate can inhibit the rutile and activate silicate minerals in varying degrees, so as to effectively deslime in the process of reverse floatation; and then, conducting the forward floatation of rutile by using lead nitrate (or lead acetate) as an activator of rutile and using sodium alkyl hydroxamate and benzyl arsonic acid (or styryl phosphonic acid) as a combined collector according to the characteristic that gangue minerals can be inhibited on a combined basis under the synergistic action of sodium fluorosilicate, carboxymethylcellulose and the residual aluminum sulfate in the ore pulp, briefly, the method of the invention can realize the roughing and tailings-discarding of fine rutile by the multi-stage floatation comprising the following steps: firstly, conducting the reverse floatation by inhibiting the rutile; and then, conducting the forward floatation by activating the rutile. The method of the invention has the advantages that the enrichment ratio and recovery rate of rutile are high, the tailings of rutile ore can be discarded thoroughly and the mineral processing cost of rutile can be greatly reduced.
Owner:KUNMING UNIV OF SCI & TECH

Flotation separation method for high-sulfur copper-zinc ore

The invention relates to a flotation separation method for high-sulfur copper-zinc ore, which comprises the steps of (1) grinding crushed high-sulfur copper-zinc raw ore to obtain ore pulp; (2) under the condition that the pH value of the ore pulp is 7-8, adding inhibitors, namely, sodium sulfite and zinc sulfate, a collecting agent, namely, butyl xanthate and a collecting foaming agent, namely, ester-23 for copper roughing, and respectively obtaining copper rough concentrate ore pulp and roughing tailing ore pulp; (3) enabling the copper rough concentrate pulp to be subjected to three-time concentration operation, and obtaining copper concentrate; (4) conducting copper scavenging operation on the roughing tailing pulp twice, and obtaining copper scavenging tailings; (5) sequentially adding lime, copper sulfate, butyl xanthate serving as a collecting agent and 2 # oil into the copper scavenging tailings for zinc roughing, and respectively obtaining zinc rough concentrate ore pulp and zinc roughing tailing ore pulp; (6) carrying out three times of concentration operation on the zinc rough concentrate pulp to obtain zinc concentrate; and (7) conducting zinc scavenging operation on the zinc roughing tailing pulp twice, and obtaining zinc scavenging tailings. Efficient flotation separation of copper and zinc is achieved, and copper flotation return water and zinc flotation return water are recycled.
Owner:NORTHWEST RES INST OF MINING & METALLURGY INST

Method for regeneration treatment of industrial waster water treating water

The invention relates to a method for regeneration treatment of industrial waster water treating water. The method comprises the following steps: firstly, pH valve of industrial waster water treating water entering into an adjusting tank is adjusted to 5 to 7; industrial waster water treating water, pH valve of which is adjusted, enters into a flocculation reactor; aluminium polychlorid, hexadecyl trimethyl ammonium bromide and starch-graft-polyacrylamide are simultaneously added into the flocculation reactor and are stirred for 2 to 10min in the temperature of 15 to 30 DEG C for flocculation decolorization reaction; industrial waster water treating water which is processed by flocculation decolorization reaction enters into an air-flotation separation cell, and then enters into a centrifugal machine for dehydration after a sediment scraper scrape out floc dross floating on the air-flotation separation cell; dehydrated floc dross is dehydrated by a pressure filter to form a filter cake; processed industrial waster water treating water can be used for dissolved-air water of the air-flotation separation cell and industrial water of regenerated water to be recycled. The method causes that COD of processed industrial waster water treating water is less than or equal to 60 Mg/L, chromacity is less than or equal to 30 degrees, thus achieving water quality standard of industrial water of regenerated water.
Owner:WUHAN UNIV OF SCI & TECH

Health-preserving ice cream and preparation method thereof

InactiveCN104171259ANo artificial additivesHigh expansion rateFrozen sweetsAnimal proteinDigestion
The invention belongs to the technical field of frozen dessert preparation and discloses health-preserving ice cream and a preparation method thereof. The method comprises the following steps of: adding soybeans into water to prepare soybean milk, filtering to remove bean dregs, heating for concentrating to obtain concentrated soybean milk, stirring, and beating to from abundant foam until the concentrated soybean milk is in a thick foam state; dissolving corn starch into the water, stirring to be in a pasting state under heating, and cooling to the room temperature to obtain corn starch paste; and adding the corn starch paste into the concentrated soybean milk in the thick foam state, adding olive oil, stirring and freezing to obtain the health-preserving ice cream. In the preparation process of the health-preserving ice cream, the emulsification can be realized by virus of the emulsifying property of the soybean milk instead of a traditional emulsifier, the corn starch plays roles in filling, stabilizing and formation assisting, soybean proteins and soybean phospholipid are used for replacing common animal protein and grease to realize the expansion rate increment and texture improvement in the ageing process of the ice cream, added roses and gardenia flowers have the effects of soothing liver-qi stagnation, beautifying and protecting the skin and is aromatic in smell, and hawthorn fruits have the effects of invigorating the stomach and helping the digestion.
Owner:LINGNAN INST OF TECH

Preparation method of material with good wave-absorbing effect

The invention discloses a preparation method of a material with a good wave-absorbing effect. The wave-absorbing material comprises the following raw materials in parts by weight: 90-110 parts of epoxy resin, 10-30 parts of plastic microspheres, 4-10 parts of a curing agent, 5-15 parts of an accelerant, 50-150 parts of a wave-absorbing agent, 50-70 parts of aerogel, 10-30 parts of thermoplastic resin, 30-50 parts of magnetic metal powder and 60-80 parts of water. Through formulations by neutralization, an aerogel material is used as a carrier; magnetic metal powder, such as an iron material, is deposited into the aerogel; then thermoplastic resin is added; the insulation characteristic of the thermoplastic resin is utilized; the thermoplastic wave-absorbing material is prepared; the composite wave-absorbing material substrate with high resistivity is prepared, thermoset of epoxy resin and plastic microspheres is utilized; the curing reaction of the epoxy resin is improved by adding thecuring agent and the accelerant, so that the overall wave-absorbing performance and heat resistance of the wave-absorbing material are improved, the density of the composite material is reduced, theantistatic effect is improved, the material is lightened, and the utilization rate of the material is increased.
Owner:苏州中亿兴新材料科技有限公司

Collecting agent for flotation of complex and difficult-to-treat copper-silver sulfide ore

PendingCN114210462ANo pollutionSolve the technical problems of beneficiation that are difficult to use efficientlyFlotationFoaming agentCopper sulfide
The invention discloses a collecting agent for flotation of complex and difficult-to-treat copper sulfide silver ore, which is prepared by mixing the following components in percentage by mass: 55 to 75 percent of sulfur nitrogen nitrile ester, 20 to 40 percent of ethionine ester and 5 to 15 percent of polyethylene glycol alkyl ether. The collecting agent disclosed by the invention not only has very strong collecting performance, but also has foamability, so that the cost of a foaming agent can be saved in production; due to the fact that the collecting agent MT-23 is high in capacity, the total consumption of the agent per ton of ore is extremely low; the flotation cost is saved by more than 25% compared with that of an existing agent; the collecting agent is non-toxic, odorless and easy to degrade, belongs to a green and environment-friendly mineral separation collecting agent, and has a wide popularization prospect. By the adoption of the method, the recovery rate of copper and silver can be remarkably increased on the premise that the quality of copper-silver concentrate products is guaranteed, and the method has the advantages of being simple in technological process, stable, reliable, high in applicability, simple in reagent system, small in reagent dosage, convenient to add and the like.
Owner:SINOSTEEL MAANSHAN INST OF MINING RES +2
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