76results about How to "Wide application temperature range" patented technology

The invention discloses a low-phase-transition-temperature heat storage material and a preparation method thereof. The low-phase-transition-temperature heat storage material comprises the following components in parts by weight: 55 to 93 parts of sodium acetate trihydrate, 1 to 40 parts of a temperature regulator, 2 to 6 parts of deionized water, 1 to 2 parts of a thickener, and 2 to 3 parts of a nucleating agent. The phase transition heat storage material provided by the invention has the adjustable phase transition temperature of 35 to 56 DEG C, and the phase transition latent heat of 200 to 280 kJ / kg. The application temperature range of a sodium acetate trihydrate system is expanded, and the phase transition heat storage material provided by the invention belongs to solid-liquid phase transition, has high heat storage density and can be effectively applied to the field of civil life.

The invention provides a thermoplastic vulcanizate (TPV) magnetic door seal and a manufacture method thereof. The TPV magnetic door seal comprises a TPV elastomer door seal rubber sleeve which is composed of ethylene-propylene-diene monomer (EPDM), polypropylene, naphthenic oil, cross-linking agents, lubricants and fillers. The TPV magnetic door seal contains highly vulcanized EPDM particles, so that the TPV magnetic door seal has good elasticity, compression deformation resistance and ageing resistance, and the application temperature range is wide (ranging from -60 DEG C to 150 DEG C). The TPV magnetic door seal has excellent using stability, prevents the phenomena of infirm sealing, cold leakage and the like, improves mechanical property and prolongs the service life.

The invention discloses preparation and application methods of a high temperature resistant cement retarder. The preparation method comprises the steps of dissolving 2-acrylamido-2-methyl propanesulfonic acid accounting for 40-60% of the total monomer by mass, itaconic acid accounting for 20-40% of the total monomer by mass and maleic acid accounting for 10-20% of the total monomer by mass into water with mass 2-4 times the total mass of the monomer, removing oxygen, adding an initiator ammonium persulfate accounting for 1.5-3% of the total monomer by mass, reacting at 75-100 DEG C for 3-6 hours, and then cooling the reactant to the room temperature, thus obtaining the high temperature resistant cement retarder. The high temperature resistant cement retarder prepared by the method can be used in the temperature range of 100-230 DEG C, is insensitive in additive amount, has short thickening transition time, is well matched with other oil well cement additives, does not have adverse effects on strength development of set cement, and has good salt resistance.

The invention provides a heat preservation method and heat preservation device for a lithium battery at a low temperature. An intelligent temperature control system detects an environmental temperature of the lithium battery and sets an upper limit value and a lower limit value of the temperature; when the environmental temperature of the lithium battery is lower than the lower limit value, the intelligent temperature control system heats a heating layer of the lithium battery in an electric heating manner; and when the environmental temperature of the lithium battery reaches the upper limit value, the intelligent temperature control system stops heating the heating layer of the lithium battery, so that the temperature of the lithium battery is kept in a set range, and normal charging and discharging in an external environment at the low temperature are achieved. According to the heat preservation method and the heat preservation device for the lithium battery at the low temperature, the internal environmental temperature of the lithium battery can be detected and regulated in real time, so that the lithium battery can achieve normal charging and discharging functions in the external environment at the relatively low temperature, the application range is expanded and the enterprise competitiveness is strengthened.

The invention provides solid solution-modified sodium bismuth titanate leadless piezoelectric ceramics and a preparation method thereof. The piezoelectric ceramics are represented by chemical composition general formula of (1-x)(0.74Na0.5Bi0.5TiO3-0.26SrTiO3)-xBa(Zr0.05Ti0.95)O3 or (1-y)(0.9Na0.5Bi0.5TiO3-0.1CaTiO3)-yBa(Zr0.05Ti0.95)O3, wherein 0.04<=x<=0.1 and 0.04<=y<=0.1. Solid solution of Ba(Zr0.05Ti0.95)O3 is realized at the morphotropic phase boundary of a 0.74Na0.5Bi0.5TiO3-0.26SrTiO3 and 0.9Na0.5Bi0.5TiO3-0.1CaTiO3 system, and high-density microcrystalline structure ceramics with uniform crystal grain size distribution are obtained by a two-step forming method and a self-bearing pressure sintering process. The piezoelectric property of the material is optimized by the morphotropic phase boundary composition characteristics and the solid solution modification method, and the piezoelectric constant d33 reaches 110-138 PC / N; the electromechanical coupling coefficient of the material is also increased obviously; the preparation process of the material is simple and stable, and the material is an optimal material for manufacturing low-power ultrasonic devices and energy transducers used in fields of gas sensors, industrial nondestructive test, and the like.

The invention discloses a thermally-induced gel water shutoff and profile control agent and a preparation method and application thereof. The thermally-induced gel water shutoff and profile control agent comprises hydrophobic modification water-soluble polyacrylamide, a cationic surfactant and 2-hydroxy-5-methyl benzoic acid. The thermally-induced gel water shutoff and profile control agent disclosed by the invention can be used as an oil-water same-layer well selective water shutoff agent or water flooding well and chemical flooding well profile control agent; and the environmental response type profile control agent generates a gel barrier at the stratum temperature after being injected into a stratum high-permeation layer zone, and a water channel can be effectively blocked so as to effectively control the spread range of the non-homogeneous stratum fluid to achieve an aim of deep profile control and water shutoff.

Disclosed is a preparation method of silicon separation membrane, having specific selectivity to natural products, which belongs to a membrane preparation technique. The method comprises: dissolving a template agent into an alcohol solution to produce template agent solution, then, adding functional monomers into said produced solution, adding in stabilizer, condensing and refluxing to remove the solvent and produce a silane precursor, dissolving tetraethoxysilane into the alcohol solution, adding in the silane precursor followed by condensing and refluxing to prepare a sol, next, aging at room temperature and dipping treated Al2O3 plate into the sol, finally, sintering in a muffle, eluting the template agent and drying to produce silicon separation membrane. The present invention is characterized in simple preparation, the produced separation membrane realizing selectively separation of a certain substance in molecular scale, water-phase molecule recognition, particularly fit for natural products separation and extensive general uses.

The invention discloses rare earth element-doped bismuth layer-structured multifunctional materials and a preparation method thereof. The general chemical formula of the multifunctional materials is Bi(3-x-y-z)ErxYbyRzTi(1.5-0.5x1)W(0.5-0.5x1-x2)Mx1Mox2Ox3, wherein x is more than 0 and not more than 40 mol%, y is not less than 0, z is not less than 0 and not more than 40 mol%, x1 and x2 are more than 0 and not more than 30 mol%, x3 is not less than 8 and not more than 10, R is one or more of La, Li, Ce, Pr and Y, and M is one or more of Nb, Ta, Zr, Hf, Cr and Mn. The multifunctional materials prepared in the invention have the advantages of good ferroelectric / piezoelectric properties, high Curie point, high high-temperature thermal stability, high chemical durability, excellent up-conversion luminescence performance, excellent optical temperature sensing performance, high sensitivity and wide application temperature range, and has wide application prospects in the fields of optical temperature sensor, bio-molecular fluorescence labeling, infrared detection and anti-fake, luminescence displays and photoelectric integration.

The invention relates to a preparation method of a high-performance room temperature complex-phase magnetic cooling material. The complex-phase magnetic cooling material comprises amorphous ferrous alloy and crystalline rare earth based alloy. The preparation method comprises the following steps of: (1) preparing the amorphous ferrous alloy by adopting a melt-spun process, mechanically crushing and then carrying out ball milling to prepare powder; (2) preparing the crystalline rare earth based alloy by adopting an ingot casting process, a fast-hardening and strip-casting process or a melt-spun process, mechanically crushing after heat treatment, and then carrying out ball milling to prepare powder; or preparing alloy powder by directly adopting a mechanical alloying process; (3) evenly mixing the amorphous ferrous alloy powder and the crystalline rare earth based alloy powder in the protection atmosphere or vacuum; (4) carrying out compression molding on mixed powder in the protection atmosphere or vacuum; and (5) preparing a pressed blank into amorphous / crystalline complex-phase blocky alloy by adopting a rapid sintering process below the crystallization temperature and in the protection atmosphere or vacuum. The prepared complex-phase magnetic cooling material has high magneto-thermal performance, high decay resistance performance, low hysteresis lag and cost and simple process, and is suitable for large-scale batch production.

The invention discloses an oil well sulfate scale inhibitor as well as a preparation method and application thereof. The inhibitor comprises the following components in percentage by weight: 35-45 percent of polycarboxylic acid polymer, 25-35 percent of polyaspartic acid, 10-15 percent of hydrolytic polymaleic anhydride, 15-20 percent of 2-thiol imidazoline and 2-5 percent of ethylene diamine tetra-methylene phosphonic acid sodium. The inhibitor disclosed by the invention is in liquid state, has a good inhibition effect on BaSO4 and SrSO3 scales and contains low-content phosphine; the components are easy to be biodegraded and a good environmental protection performance is achieved; the application temperature range is wide; the usage temperature is as high as 100 DEG C.

The invention relates to an elastomer epoxy resin-based all-solid-state electrolyte as well as a preparation method and application thereof, and solves the technical problems that impurities are introduced in the preparation process of an existing cross-linked solid-state polymer electrolyte, a solvent is used, and the working temperature range of the existing thermoplastic polymer solid-state electrolyte is narrow. The electrolyte is prepared from a precursor solution, and is characterized in that the precursor solution is only composed of an epoxy resin monomer, a curing agent and alkali metal salt; alkali metal cations are dissociatedfrom the alkali metal salt under the solvation action of the epoxy resin monomer and the curing agent; and the epoxy resin monomer and the curing agent aresubjected to a cross-linking reaction, and the obtained electrolyte is an elastomer electrolyte self-supporting film, serves as a skeleton of the electrolyte, and is also responsible for ion transmission. The invention also provides a preparation method and application of the electrolyte. The method can be applied to the field of lithium ion battery solid electrolyte.

The invention relates to a low-resistivity pyroelectric ceramic material with temperature ageing resistance and a preparation method thereof. According to the invention, the chemical composition of the pyroelectric ceramic material is mainly as follows: Pb1+delta (Sb2 / 3Mn1 / 3)y(ZrxTi1-x)1-yO3+wat%A; and in the formula, A is at least one selected from Mn and Cr; delta is -0.05 to 0.05; w is 0-10 (preferably 0-2); x is 0.75-0.90; and y is 0.01-0.25.

The invention relates to a novel preparation method of a schiff base oil well acidification corrosion inhibitor and application of the preparation method. The corrosion inhibitor comprises the following components in percentage by weight: 5-20 percent of schiff base compound, 0.5-2 percent of cyclohexylamine, 1-3 percent of methoxy amine, 3-5 percent of hexadecyl trimethyl ammonium chloride, 15-20 percent of N'N-dimethyl formamide and 50-75.5 percent of solvent. The corrosion inhibitor has extremely strong adsorption, can form a compact protective film on a metal surface and is extremely suitable for corrosion resistance of different oil pipe steel in acid fracturing construction of petroleum exploitation industry. The acidification corrosion inhibitor used for the oil pipe steel can also be promoted and used in pipeline acid washing of industries of chemical industry, water supply and drainage, boilers, steel mill and the like. The application temperature of the corrosion inhibitor in an acidification process can reach 140 DEG C; and the corrosion inhibitor is suitable for hydrochloric acid with concentration of reaching up to 25 percent, and has the characteristics of less using amount, high efficiency, wide application temperature range, suitability for oil pipes of different materials, good dispersion in acid solution, easiness and convenience for production and the like.

The invention relates to a melilite structure crystal zero / near-zero frequency temperature coefficient cut and a processing method and application thereof. The melilite structure crystal zero / near-zero frequency temperature coefficient cut adopts a melilite structure piezo-electric crystal, and the general formula of the melilite structure piezo-electric crystal is (A<1>A<2>)2{(B<1>B<2>)(C<1>C<2>)}3O7, wherein A<1>= Ca, Sr, Ba; A<2>= La, Nd, Pr, Sm, Gd; B<1>=Mg, Zn; B<2>=Al, Ga; C<1>=Al, Ga; and C<2>=Si, Ge. The melilite structure crystal zero / near-zero frequency temperature coefficient cut is wide in application temperature range and can be applied within 20-600 DEG C; and frequency-temperature stability can reach -10 ppm / DEG C.

The invention discloses a triplex backup temperature measurement sensor, and aims to provide a triplex redundancy backup total temperature sensor capable of improving the reliability and reducing thevolume and weight of the sensor. The triplex backup temperature measurement sensor is implemented according to the technical scheme that an inner tube of a double-layer sealed metal exploring tube ofa coaxially connected temperature sensing sensor penetrates through a metal throat of the temperature sensing sensor, and then is fixedly connected to a tail cover at the rear end and packaged in a mutually independent air flow channel of a metal outer tube; and three platinum wires wound on an electric conductor winding cylinder lead out six platinum wire taps which are connected to bent joint connecting pieces and leading-out wires, an air flow passes through a tube cylinder annular hole of the metal outer tube and the electric conductor winding cylinder and flows to the inner tube wall of the double-layer sealed metal exploring tube via a probe measuring end, the air flow is transformed into a sound velocity air flow by means of a Laval principle of the metal throat, the kinetic energyof the air flow is converted into a corresponding triplex backup resistance signal, and the triplex backup resistance signal is provided for an engine control system and converted into a triplex redundancy electric signal for three channels.

The invention discloses a shielding cable for an environment-friendly car. A thermoplasticity irradiation vulcanized rubber insulation layer is arranged on the outer layer of a copper core soft conductor to form an insulation wire core, a plurality of insulation wire cores are stranded to form a cable wire, filling layers are arranged at gaps of the cable core, a belt wrapping layer, an inner shielding layer and an outer shielding layer are arranged on the outer portions of the filling layers and the cable core in sequence, and an outer protecting sleeve layer is arranged on the outermost layer of a cable. The filling layers are low-smoke-zero-halogen filling ropes. The inner shielding layer is a tinned copper wire braid shielding layer. The outer shielding is an aluminum foil lapping shielding layer. The outer protecting sleeve layer is a 125-DEG-C low-smoke-zero-halogen flame-retarding elastic body protecting sleeve layer. The shielding cable for the environment-friendly car has flame-retarding performance, high-temperature-resisting performance, low-temperature-resisting performance, acid-base-resisting performance, oil-water-resisting performance, anti-tearing performance, softness and environment-protecting performance.

The invention discloses a high-flexibility anti-bending robot cable. A power system unit and a control system unit are stranded into a cable conductor; a cotton rope filling layer is arranged in a gap of the cable conductor; an aluminium foil shielding layer and a shielding layer woven with tinned copper wires are sequentially wrapped outside the cable core and the cotton rope filling layer; a thermoplastic elastomer outer sheath is extruded on the outermost layer of the cable; and each of the power system unit and the control system unit is formed by a conductor and a polyvinyl chloride insulation layer extruded on the outer layer of the conductor. The invention provides the high-flexibility anti-bending robot cable which has high flexibility, bending resistance, high wear resistance, anti-interference capacity, resistance to acid and alkali, oil-water resistance, tear resistance, high toughness, aging resistance and excellent weather resistance and simultaneously also has excellent electrical insulation property and environment-friendly performance.

The invention belongs to the field of piezoelectric ceramic materials, and particularly relates to a preparation method of bismuth ferrite-lead titanate-bismuth magnesium niobate ternary system high-temperature piezoelectric ceramic. The chemical formula is (1-x-y) BiFeO3-xPbTiO3-yBi (Mg2 / 3Nb1 / 3) O3, x and y are molar weights, and x is more than or equal to 0.20 and less than or equal to 0.40; 0.01 < = y < = 0.10; the auxiliary component is mBi2O3 + nPbO + zMnO, m, n and z are the mass percent of the total formula, and m is larger than or equal to 0 and smaller than or equal to 0.10; 0 < = n < = 0.10; 0 < = z < = 0.10. The preparation method comprises the following steps: S1, weighing the raw materials; s2, carrying out primary ball milling; step S3: drying; s4, performing solid-phase synthesis; step S5, carrying out secondary ball milling; step S6, granulating and forming; step S7, glue discharging; step S8; and step S9. The sintering temperature of a system can be reduced, ceramic densification is promoted, cracking and pulverization are avoided, the ceramic has the good sintering characteristic, the c / a ratio of the system is reduced, the material is easy to polarize, the ceramic obtains the large piezoelectric coefficient under the condition that the high Curie temperature is guaranteed, the insulativity and temperature stability of the material are improved, and the service life of the material is prolonged. And practical application of devices at high temperature is facilitated.

Provided is a fluid resistance reduction composition comprising: a nitrite, an interfacial agent, a corresponding ionic compound, an electrolyte and an aqueous phase medium. Therefore, the fluid resistance reduction composition provided in the present invention is capable of effectively reducing fluid resistance and lowering energy consumption, thereby indirectly reducing carbon emission.

The invention discloses a pyroelectric ceramic material and a preparation method thereof. The pyroelectric ceramic material has the following general formula: (Pb[1+delta])(Mg1 / 3Nb2 / 3)z(ZrxSn[1-x-y]Tiy)[1-z]O3+w at.%A, wherein delta is more than 0 and less than or equal to 0.05, w is more than 0 and less than or equal to 10, x is more than or equal to 0.75 and less than or equal to 0.90, y is more than or equal to 0.10 and less than or equal to 0.25, and z is more than or equal to 0.01 and less than or equal to 0.10; A is any or a combination of more than two of Fe, Cr and Mn. The preparation method of the pyroelectric ceramic material comprises the following steps of: synthesizing ceramic powder; preparing a ceramic green body; sintering; plating a Ni electrode with a chemical method; and polarizing in silicon oil. The pyroelectric ceramic material disclosed by the invention has stable and moderate pyroelectric coefficient, low dielectric constant, low dielectric loss and adjustable resistance in a great range, and is hopeful to be applied to the field of non-refrigeration infrared detection.

The invention belongs to the field of microbial electrochemistry and biosensing, and more particularly to a method for improving the electricity generation and sensing performance of a microbial fuelcell. In a low-temperature environment, the anode biological film of the microbial fuel cell is domesticated, and the microbial fuel cell sensor with successful low-temperature domestication can be obtained after the microbial fuel cell output voltage is stable. The anode of the microbial fuel cell sensor having the specific structure obtained by low-temperature domestication generate an electro-bacteria community, and enhances the power generation capacity and the sensing performance of the microbial fuel cell sensor. The method for regulating the biome structure of the microbial fuel cell bythe low-temperature domestication has the electricity production performance increased by 12.5%-75% and the sensing sensitivity increased by about 2-3 times compared with a fuel cell activated at room temperature.

The invention relates to an ultra-lightweight and high wear-resistant rubber-plastic sole and a preparation process thereof. The ultra-lightweight and high wear-resistant rubber-plastic sole is prepared from the following two components in parts by weight: 70-80% of rubber-plastic composition and 22-28% of rubber-plastic auxiliary agent. The rubber-plastic composition is prepared from 65-70% of ethylene-vinyl acetate copolymer (EVA), 15-18% of isoprene rubber (IR), and 15-18% of block olefin copolymer (BOC); and the rubber-plastic auxiliary agent is prepared from 48-52% of anti-wear agent, 22-28% of filler, 1.2-1.8% of vulcanization accelerator, 2.2-2.8% of vulcanization active agent, 3-4% of active agent, 2.0-2.5% of cross-linking agent, 7.5-9.0% of foaming agent and 7-8% of chromogenic agent. The preparation process of rubber particles comprises the steps of putting the rubber-plastic composition and the rubber-plastic auxiliary agent except for the foaming agent and the cross-linking agent according to a formula amount into an internal mixer for mixing, then adding the foaming agent and the cross-linking agent, and subjecting the mixture to smelting, tableting, and extrusion granulation to form ultra-lightweight and wear-resistant rubber-plastic particles; the molding process of the sole comprises injection molding and vulcanization molding based on a mold.

The invention belongs to the field of a cable, and particularly relates to an offshore floating electric cable. A reinforcing rib is arranged at the center of the cable; a floater is arranged outside the reinforcing rib; a third waterproof protection layer is arranged outside the floater; a sealing layer is arranged outside the third waterproof protection layer; two layers of uniformly and annularly arranged conductors are arranged outside the sealing layer; a second waterproof protection layer is arranged outside the two layers of the uniformly and annularly arranged conductors; a first thermoplastic vulcanized rubber insulating layer is arranged outside the second waterproof protection layer; a layer of uniformly and annularly arranged insulating cable cores are arranged outside the first thermoplastic vulcanized rubber insulating layer; each insulating cable core consists of a conductor and a second thermoplastic vulcanized rubber insulating layer outside the conductor; the first waterproof protection layer is arranged outside the insulating cable core; and a polyurethane jacket is arranged outside the first waterproof protection layer. The offshore floating electric cable provided by the invention can solve the problems of poor waterproof property, insufficient buoyancy and the like, and can be used on the sea.

Nickel-cobalt-potassium crystal sulfate hexahydrate crystal for ultraviolet light band filter has molecular formula: K2CoO.1Ni0.1Ni0.9(SO4)2.6H2O, molecular weight is 437.15monoclinic space group P2(1) / C, crystal cell parameter a=6.1390(3), b=12.1839(6), c=9.0095(4), alpha=gamma=90degree, beta=105.062(2)degree, v=650.74(5), 3,Z=2, DC=2.231g / cm3. It has high transmittance and visible-light absorbing function, and it could real-time observe and control growth process in saturated solution and realized crystal growth by solution temperature-decreasing method.

The invention discloses a negative electrode self-healing adhesive as well as a preparation method and application thereof. The adhesive consists of two components, namely a triblock polymer and a small molecular plasticizer. The adhesive has the characteristic of multiple functions, and the polyacrylic acid block is rich in carboxyl and has very strong acting force with an active material, a current collector and a conductive agent, so that high adhesive force is realized; due to the fact that a poly 2-(3-(6-methyl-4-oxo-1, 4-dihydropyrimidine-2-yl) ureido) ethyl methacrylate (UPyMA) block can form a strong and dynamic quadruple hydrogen bond, the poly 2-(3-(6-methyl-4-oxo-1, 4-dihydropyrimidine-2-yl) ureido) ethyl methacrylate (UPyMA) block not only can adapt to stress generated by a large-volume expansion negative electrode, but also can effectively repair electrode damage generated by volume expansion, and efficient self-repairing is achieved; the polyethylene glycol monomethyl ether methacrylic acid block is rich in ether bonds, so that rapid Li < + > conduction can be realized, and a rapid ion conduction path is formed.

The invention belongs to the technical field of scroll compressors, and discloses a scroll compressor with both a gas supplement function and an intermediate gas exhaust function and a heat pump system. The scroll compressor comprises a static scroll plate and a dynamic scroll plate. Intermediate gas exhaust holes and intermediate gas supplement holes are formed in an end plate of the static scroll plate, and the end plate plays a role in sealing. The heat pump system comprises the scroll compressor, an evaporator, a flash device, a condenser, a first stop valve, a second stop valve, a first expansion valve, a second expansion valve and an intermediate gas exhaust pipe. The scroll compressor fulfills the intermediate gas exhaust function and the gas supplement function, the problems that when the environmental temperature changes, the back pressure changes, and over-compression or under-compression is caused are solved, the situation that energy is wasted is relieved, and the working efficiency of the scroll compressor is improved. The high compressor working efficiency can be achieved by the heat pump system at the low environmental temperature and the high environmental temperature, the performance of the heat pump system is improved, and the application temperature range of the heat pump system is broadened.

The invention belongs to the technical field of lithium ion batteries. The invention discloses a low-temperature lithium ion battery electrolyte which is composed of a solvent, a lithium salt and an additive, the lithium salt is a mixed lithium salt and comprises at least one of lithium hexafluorophosphate or lithium tetrafluoroborate and a special lithium salt, and the special lithium salt is composed of at least one of lithium bis (oxalato) phosphate, lithium bis (fluorosulfonyl) imide or lithium difluorophosphate; and the weight percentage of the special lithium salt in the electrolyte is 0.5%-5.0%. The invention also discloses an electrolyte containing the low-temperature lithium ion battery electrolyte. Through necessary and selective addition and combination of the components, the purpose of the invention can be achieved, the low-temperature performance of the electrolyte is synergistically improved, the high-temperature performance is not lost, the application temperature range of the lithium ion battery is widened, and the influence of the environment on the performance of the battery is reduced to a certain extent. The electrolyte provided by the invention can meet low-temperature charging, and has low-temperature discharging performance different from the low-temperature discharging performance commonly required at present.

The invention discloses a preparation method and application of a magnetic renewable mercury removal agent. According to the method, natural iron minerals are subjected to high-temperature roasting to remove part of sulfur and then are converted into magnetic iron minerals, copper chloride is added for modification treatment, and the magnetic renewable mercury removal agent with excellent mercury removal performance is obtained after mechanical grinding and activation. The magnetic mercury removal agent is placed in a fixed bed, a fluidized bed and a wet flue gas purification system or sprayed into flue gas to be in contact with mercury in the flue gas,converts gaseous mercury into a stable compound, and achieves curing removal of the gaseous mercury; the mercury-loaded mercury removal agent is separated out after magnetic separation, and the magnetic mercury removal agent can be recycled after being subjected to high-temperature mercury desorption. The raw materials of the magnetic renewable mercury removal agent are natural and easily available and have abundant reserves; the preparation method of the magnetic renewable mercury removal agent is simple; and the magnetic renewable mercury removal agent has large mercury adsorption capacity and fast adsorption rate, can be recycled, substantially reduces the mercury removal cost, and has good practical value.

The invention discloses a Si, Mg and Zr micro-alloyed AlCuMn heat-resistant aluminum alloy and a heat treatment process, and belongs to the technical field of heat-resistant alloy materials. The alloy comprises the following components in percentage by weight: 4%-5.6% of Cu, 0%-0.35% of Mg, 0.2%-0.4% of Mn, 0%-0.3% of Zr, 0%-0.3% of Si and the balance of high-purity aluminum. According to the invention, Si, Mg and Zr micro-alloying and different heat treatment processes are adopted, so that the heat stability of the alloy is improved, and the alloy has higher strength under long-time heat exposure at 225-325 DEG C and keeps good heat stability.

The invention relates to the field of lubricating grease, and particularly provides a lubricating grease composition and a preparation method thereof. The lubricating grease composition contains base oil and acrylic rubber particles, the acrylic rubber particles are dispersed in the base oil and prepared through an irradiation crosslinking method and have a cross-linked structure, the base oil serves as a continuous phase, the acrylic rubber particles serve as a dispersion phase, and relative to 100 parts by weight of base oil, the content of the acrylic rubber particles ranges from 10 parts by weight to 180 parts by weight. The viscosity of the lubricating grease composition can be effectively adjusted along with temperature changes, the application temperature range is wide, and compared with a lubricating grease composition containing acrylic rubber particles obtained through peroxide crosslinking, the kinematic viscosity of the lubricating grease composition is low at the temperature of 40 DEG C, and the kinematic viscosity of the lubricating grease composition is high at the temperature of 100 DEG C. In addition, the lubricating grease composition has excellent antiwear and antifriction performance.