56results about How to "Easy to defoam" patented technology

The invention relates to a coal dressing collecting agent and a preparing method of the coal dressing collecting agent, in particular to a coal collecting agent with butyl-octyl alcohol residual liquid in petrochemical enterprises as raw materials and a preparing method of the coal collecting agent and belongs to the technical field of preparing of coal slime flotation collecting agents. According to the coal dressing collecting agent, the butyl-octyl alcohol residual liquid in the petrochemical enterprises and phthalic anhydride serve as raw materials, under the action of catalysts, firstly, the temperature is raised to 70-150 DEG C, and a backflow reaction is performed for 1-5 hours; then, the temperature is raised to 120-300 DEG C, water phases and organic phases are separated after the backflow reaction is performed for 1-5 hours, drying and dewatering are performed on the organic phases, and the coal dressing collecting agent can be obtained. According to the coal dressing collecting agent and the preparing method of the coal dressing collecting agent, the preparing process is simple, the obtained product is good in flotation capacity, and industrialized production and industrialized application are facilitated. Meanwhile, the problem that the butyl-octyl alcohol residual liquid cannot be easily processed with high efficiency and high yield is well solved.

The invention discloses a collecting agent for water-soluble cations, a preparation method of the collecting agent for the water-soluble cations and application of the collecting agent for the water-soluble cations. The collecting agent for the water-soluble cations is characterized in that the collecting agent for the water-soluble cations is an alkylamine surface-active agent with two hydroxypropyl bases or two chlorinated hydroxypropyl bases in each alkylamine molecule. The preparation method of the collecting agent for the water-soluble cations comprises the steps that continuous stir is carried out, and aliphatic amines in a container are dissolved with absolute ethyl alcohol; propylene epoxides or epoxy chloropropane is slowly added under the conditions that the temperature is 25 DEG C, the backflow state is formed, and the time ranges from 2.5 hours to 3.5 hours, and the reaction is continuously carried out for 10 hours, wherein the quantity ratio between aliphatic amines and the propylene oxides or the epoxy chloropropane is 1 to 2-3; reactant is transferred to a distillation system, and unreacted propylene oxides or unreacted epoxy chloropropane and unreacted absolute ethyl alcohol are removed through distillation under the appropriate distillation conditions; the temperature of a reaction system is lowered to be equal to the room temperature, and the needed collecting agent can be obtained. The collecting agent for the water-soluble cations is high in water solubility, and can be used for reverse flotation desiliconization of iron ore or flotation of silicate minerals, and when the collecting agent for the water-soluble cations is used for flotation of artificial mixed ore, iron ore concentrate with the iron grade larger than 65% can be obtained at the normal temperature, wherein the artificial mixed ore is formed by hematite and quartz in the mode that the mass ratio between the hematite and the quartz is 3 to 2.

The present invention relates to a comprehensive recovery process of lithium polymetallic ore with fine-grained niobium and tantalum. The process includes rough grinding of raw ore, sedimentation desliming, flotation, reunion magnetic separation, re-election and other steps. The process method of the present invention is particularly suitable for Due to the large amount of mud in the ore, the temperature in the mining area is low all year round, the associated niobium and tantalum minerals are of low grade, and the comprehensive recovery of lithium polymetallic ore with fine particle size embedded, and the process technology is advanced and reliable, simple and reasonable, and highly targeted. Raw ore grinding The ore fineness requirement is not high, the amount of regrinding is small, the operating cost is low, the comprehensive recovery rate is high, and it has a good industrialization prospect.

The invention provides low-viscosity high-heat-conductivity organic silicon electronic pouring sealant and a preparation method thereof. The method comprises the following steps of: mixing high viscosity and low viscosity of vinyl polydimethylsiloxane; adding aluminum oxide with particle size of 1-5 microns as heat conduction filler; further adding a compound coupling agent formed by combining aluminic acid ester, KH570 (gamma-methylacryloyloxypropyl trimethoxysilane) and KH550 (gamma-aminopropyl triethoxysilane) and a compound flame retardant formed by combining melamine cyanurate and aluminum hydroxide into a base material system; and preparing the electronic pouring sealant according to a proper proportion. The prepared pouring sealant has high heat conductivity up to 2.5-3.0W.m<-1>.K<-1>, low viscosity of 2000-3000mPa.s, perfect fluidity and good flame retardance effect; and the production cost is low.

The invention provides a polyurethane template for modeling concrete and a preparation method thereof. The polyurethane template raw materials include hydroxyl-terminated silicone polyether polyol, isocyanate, chain extender, filler, plasticizer, anti-aging agent, color paste, anti-settling agent, defoamer, catalyst, water remover, sepiolite powder, boron nitride nanotubes, cross-linked polytetrafluoroethylene powder, alkali-resistant glass fiber; preparation method: polyol polyether polyether with hydroxyl-terminated silicone, chain extension agent, filler, plasticizer, and anti-aging agent to obtain mixture A; mix sepiolite powder, boron nitride nanotubes, and cross-linked polytetrafluoroethylene powder to obtain mixture B; mix alkali-resistant glass fiber with color paste Obtain mixture C; mix mixture A, B, C, anti-sedimentation agent, defoamer, catalyst, water remover and isocyanate, and then perform stirring, defoaming, mold casting and curing in sequence to obtain a polyurethane template. The polyurethane template of the present invention has excellent performance, and the material body has low viscosity during the preparation process, is easy to defoam and is easy to operate.

The invention discloses an insulative potting composite material with high thermal conductivity and a preparation method thereof. The insulative potting composite material is prepared by mixing a component A with a component B at a weight ratio of 1:1 and solidifying at the temperature of 50-150 DEG C for 20-50 minutes. The insulative potting composite material has the advantages that the thermalconductivity reaches 3.5 W / m.K (ASTM D5470, HotDish method) and the electrical insulation property and mechanical properties are excellent. According to the invention, the insulative potting composite material with high thermal conductivity is prepared by using vinyl silicone oil as a base adhesive and hydrogen-containing silicone oil as a solidifying agent, using spherical, flaky, acicular and prismatical heat-conducting fillers to fill, and forming plenty of heat conducting channels by virtue of the reasonable combination of the heat-conducting fillers of different shapes; and the solidified insulative potting composite material has excellent electrical properties and mechanical properties.

The invention discloses a low-power LED lamp bead low-thermal-resistance packaging structure and packaging technology. The technical solution is: including a base, a support seat, a heat conduction device, a light-emitting component, an insulating sleeve and a protection component, and an installation groove is opened on the top of the base. 1. The inner wall of the installation groove 1 is provided with a support seat, the support seat includes a chassis, the top of the chassis is fixedly installed with the boss 2, the top of the boss 2 is fixedly installed with a pad seat, and the top of the pad seat A cut surface is provided, a slot 1 is opened on both sides of the pad seat, an electrode pin is plugged into the inner wall of the slot 1, and one end of the electrode pin is fixedly installed on the inner wall of the cut surface. The beneficial effects of the present invention are: the copper column The bottom is provided with installation groove 4, and the inner wall of installation groove 4 is fixedly installed with a heat conduction pipe. The gap of the sheet is filled with heat dissipation silica gel, which has the effect of releasing heat energy.