80results about How to "Smooth particle surface" patented technology

The invention discloses a particle-typed composite fertilizer of humic acid and manufacturing method, which consists of dressing and karyosome, wherein the dressing contains nitrogen, phosphor and potassium. The manufacturing method comprises the following steps: graining humic acid; cladding; graining; solidifying fused fertilizer on the particle of humic acid; making the composite fertilizer dissolved into water without falling; fitting for large scale of agricultural product.

The invention discloses a high-nickel ternary positive electrode material with single crystal morphology and a preparation method of the high-nickel ternary positive electrode material. The positive electrode material is formed by a base material and a coating layer, wherein the base material is prepared from a high-nickel ternary precursor, a lithium source and a doping agent; the doping agent comprises a doping element, the doping element is a metal element, the coating layer is formed by a coating material, the coating material comprises a coating element, and the coating element is a metalelement and/or a non-metal element. The positive electrode material is obtained by mixing the high-nickel ternary precursor, the lithium source and the doping agent, performing primary sintering, then mixing with the coating material, and performing secondary sintering. The high-nickel ternary positive electrode material disclosed by the invention has the advantages of single crystal morphology,smooth surface, small specific surface area and high compaction density, and the single crystallization of the high-nickel ternary positive electrode material improves the specific capacity and cycleperformance of the positive electrode material and prolongs the service life of the positive electrode material. The preparation method is simple in process, easy to implement and beneficial to industrial large-scale production.

The invention relates to the technical field of lithium ion battery carbon cathode materials and in particular to a modified microcrystal graphite cathode material of a lithium ion battery as well asa preparation method and application thereof. The material has the advantages that (1) a modified core-shell structured natural graphite cathode material with artificial graphite embedded into and onthe surface of natural graphite in situ is prepared, the overall structural properties of natural microcrystal graphite are maintained, pores of the natural microcrystal graphite is filled with the artificial graphite, and the outer surface of the natural microcrystal graphite is wrapped by the artificial graphite; (2) compared with a conventional cathode material, the cathode material prepared byusing the method provided by the invention is good in isotropy, is capable of inhibiting and absorbing expansion of electrodes in the charge and discharge process, is high in primary coulombic efficiency, long in service life and good in high-magnification charge and discharge performance and is capable of replacing artificial graphite to manufacture cathode materials of power batteries, so as tolower the cost greatly; and (3) the method is simple in preparation process, low in cost and relatively high in practicability.

A controlling and releasing composite fertilizer nutrient releasing model and production are disclosed. The production is carried out by potassium chloride reacting with phosphoric acid and concentrated sulfuric acid, recovering hydrogen chloride, two products reacting, adding urine to obtain mixed slurry of potassium sulfate and urea phosphate, adding stabilizer and flowing-performance improver, reacting with urea to obtain ammonium phosphate mixing melt in melting boiler, regulating NPK proportion, adding functional additive, combing releasing mechanism with instant releasing, frame slow releasing and surface controllable releasing, granulating, coating, computing fertilizer proportion, and obtaining controllable releasing composite fertilizer. Its advantages include low cost, regulating releasing period and no environmental pollution.

The invention belongs to the field of building materials and particularly discloses a high-fluidity sleeve grouting slurry for rebar connection and a preparation method thereof. The grouting slurry isprepared from the following materials in parts by weight: 390-410 parts of cement, 90-110 parts of admixture, 460-500 parts of sand, 0.05-0.07 part of a water-retaining agent, 1.4-1.6 parts of a de-foaming agent, 6-8 parts of a compound water reducer, 40-50 parts of compound retarder, 35-40 parts of a compound expanding agent, 7-10 parts of a compound early strength agent and 135-145 parts of water. The preparation method for the grouting slurry comprises the steps of proportionally weighting the raw materials and uniformly stirring in a certain stirring manner. The sleeve grouting slurry forrebar connection prepared according to the invention is high in fluidity and can solve the problems of more insufficient initial fluidity or lower surplus initial fluidity and poorer fluidity holdingability than those of standard slurry of the present sleeve grouting slurry for rebar connection in practical engineering application.

The invention provides a production method for a granular composite microbial inoculant, which comprises the following steps: 65 to 80 weight percent of powdery composite microbial inoculant, 5 to 30 weight percent of an adhesive and 5 to 15 weight percent of carbamide or mixture of carbamide and ammonium hydrogen carbonate are weighed; the materials are then mixed, granulized by adding with water, dried, cooled and sieved to be made into the granular composite microbial inoculant. As the granular composite microbial inoculant obtained by adopting the production method of the invention does not bond or react with various fertilizers when in mixing, the granular composite microbial inoculant is suitable for mechanical fertilizing.

The invention relates to a nitrogen oxide phosphor powder and a synthesis method thereof. The nitrogen oxide phosphor powder is characterized in that the general chemical formula of the nitrogen oxide phosphor powder is Al-xByOzN2/3+4/3y-2/3z: xRE, wherein X is lager than or equal to 0 and smaller than 1.0, Y is larger than or equal to 1.0 and smaller than or equal to 3, Z is lager than 0 and smaller than or equal to 2.0; A represents at least one element of Be, Mg, Ca, Sr, Ba and Zn; B represents the element Si; and RE represents at least one element of Eu, Ce, Dy and Mn. The invention provides the novel method for preparing the nitrogen oxide phosphor powder for a light emitting diode (LED) by utilizing a two-step synthesis method. By using the novel method, the purity of the nitrogen oxide phosphor powder is increased to a large extent, the sintering temperature of the nitrogen oxide phosphor powder is further improved, crystal morphology of the nitrogen oxide phosphor powder is optimized, a particle surface of the nitrogen oxide phosphor powder is smooth, and the crystallinity is improved, so that the light emitting intensity of the nitrogen oxide phosphor powder is improved.

The invention relates to a sagger used for high-temperature firing and a preparation method of the sagger. The sagger used for high-temperature firing is formed by performing mixing forming by using aluminum oxide powder, kaolin powder, clay powder, white corundum, quartz and mullite as raw materials and performing high-temperature firing. The sagger used for high-temperature firing provided by the invention has a good thermal shock effect, low costs and long service life, and can maintain the crack resistance, uniformity and quality stability of a product during mass production, and is suitable for use in environments with larger temperature differences; the sagger used for high-temperature firing provided by the invention is produced during high-temperature firing, and compared with a sagger formed by synthesizing quartz and mullite in advance and performing mixing forming on the market, the sagger provided by the invention has a more uniform finished-product phase, better color andthermal shock stability, and a small phase thermal expansion coefficient, thereby having extremely high thermal shock stability; and the quartz is added, so that the thermal shock performance can be improved.

The invention relates to a method for using signal molecules for accelerating repair of disintegrated aerobic granular sludge. According to the method for using the signal molecules for accelerating repair of the disintegrated aerobic granular sludge, by adding the exogenous AHLs signal molecules to repair the disintegrated the aerobic granular sludge, in a process of repairing structures of the disintegrated aerobic granular sludge, regranulation of the crushed granular sludge is accelerated, after 20-30 days, the disintegrated aerobic granular sludge is basically and completely repaired, therepaired aerobic granular sludge is smooth in particle surface, regular in shape and compact in structure, and has good settling performance, after adding of the exogenous AHLs is stopped, the granular sludge structures are still intact, and the settling performance and the granule density remain at high levels. According to the method for using the signal molecules for accelerating repair of thedisintegrated aerobic granular sludge, by adding the exogenous AHLs temporarily, an excellent repairing effect on the disintegrated aerobic granular sludge is achieved, the repaired granular sludge is intact in structure and good in settling performance, moreover, operation is simple, and practical application is easy.

The invention relates to a preparation method for controlled-release fertilizer special for mechanically applied rice. The preparation method comprises the following steps: performing double-layer coating by using high tower pelleting compound fertilizer as core fertilizer to obtain the corresponding double-layer coating controlled-release fertilizer I, double-layer coating controlled-release fertilizer II and double-layer coating controlled-release fertilizer III, wherein the bottom layer urea coating accounts for 4 to 6 weight percent of the core fertilizer, and the outer layer film coating agent accounts for 2 weight percent, 4 weight percent and 6 weight percent of the urea coated fertilizer respectively based on the total weight of the reclaimed polyethylene film resin and the reclaimed polystyrene foam resin; and mixing the double-layer coating controlled-release fertilizer I, the double-layer coating controlled-release fertilizer II and the double-layer coating controlled-release fertilizer III according to the mass ratio of 1:(1-3):(1-2) to obtain the controlled-release fertilizer special for mechanically applied rice. The controlled-release fertilizer special for mechanically applied rice meets the absorption requirements of the rice on nitrogen, phosphorus and potassium nutrients in the growth stage, is difficult to crush and is suitable for mechanical fertilizer application.

This invention relates to a method for spray granulation of composite fertilizers, that is, potassium chloride and oil of vitriol react with each other to produce potassium hydrosulphate solution. The potassium hydrosulphate solution is homogeneously mixed with ammonium dihydrophosphate and reacts with ammonia to produce neutralization paste containing ammonium sulphate, potassium sulphate and diammonium hydrophosphate. The neutralization paste is then granulated, dried, cooled and screened to obtain composite fertilizers. This spray granulation of composite fertilizers has the advantages of low production cost and smooth particle surfaces.

The invention discloses a preparation method of submicron hexanitrohexaazaisowurtzitane in batch. The method comprises: adding a surfactant into water to prepare a surfactant solution, grading by using grinding ball mediums with different diameters, adding CL-20, the surfactant solution and the grinding ball mediums into grinding tanks, cooling, symmetrically putting the grinding tanks, fixing the grinding tanks onto a planet grinder for planet grinding, separating a grinded explosive suspension and the grinding ball mediums, performing solid-liquid separation for the explosive suspension, and drying to obtain the submicron CL-20. According to the preparation method provided by the invention, the CL-20 explosive, the surfactant solvent and the grinding ball mediums with different diameters are graded, and the planet grinder is used for repeated grinding. The prepared epsilon-CL-20 is uniform in powder particle size, smooth in particle surface, and regulatable in average particle size; during a preparation process, no organic solvent impurities are introduced, a post treatment is reduced , a total grinding time is 1-10 hours, and a grinding time is short. The method is suitable for production in batch.

The invention belongs to the technical field of agricultural product processing devices, relates to a pulverizing device, and in particular relates to a yacon fruit flake and whole powder multielementjoint processing production system. A pretreatment unit, a peeling and slicing unit, an anti-browning unit, an anti-caking treatment unit and a high-speed nitrogen flow pulverizing unit are mounted sequentially from the upstream side to the downstream side of the working procedure, wherein the pretreatment unit comprises an airtight decompression tank; an ultrasonic generation device and a magnetic field generation device are arranged in the airtight decompression tank; the peeling unit comprises a centrifugal peeling device and a slicing device; the centrifugal peeling device and the slicingdevice are sequentially mounted; the anti-browning unit comprises an anti-browning induction treatment device, an anti-metal ion induction treatment device and an anti-caramelization browning treatment device; the anti-caking treatment unit comprises a microwave drying device, an anti-caking polarity remover spray device and a freeze drying device; the high-speed nitrogen flow pulverizing unit comprises a nitrogen generating device, a nitrogen tank, a nitrogen pulverizer and a cyclone separator; and the cyclone separator is provided with a multi-stage discharge port.

The invention discloses a nano TiO2-containing cellulose-based low-temperature phase change energy storage microcapsule and a preparation method thereof; the low-temperature phase change energy storage microcapsule comprises a capsule core and a capsule wall, wherein the capsule core is a core-shell structure composite phase change material formed by wrapping the surface of paraffin with ethylene glycol, and the capsule wall is formed by a carboxymethyl cellulose membrane doped with nano TiO2 particles; the preparation method comprises the steps of firstly, preparing a composite phase change material by using an aqueous phase ethylene glycol solution and oil phase liquid paraffin through a micro-emulsion method; then, preparing the capsule wall by using a carboxymethyl cellulose water solution containing tetrabutyl titanate and a silane coupling agent through a sol-gel reaction to obtain the microcapsule; the microcapsule has average particle size of 3-10 microns, phase-transition temperature of minus 12 to 5 DEG C and an enthalpy value of 170-200J/g; furthermore, the microcapsule also has good heat-conducting property; the microcapsule is simple in preparation technology and easy in large-scale production, and products of the preparation method do not contain inorganic salt and an organic solvent which can easily corrode a container, so that the preparation method is green and environment-friendly.

The invention discloses a lithium-rich manganese-based solid solution positive electrode material for a lithium ion battery and a preparation method of the lithium-rich manganese-based solid solution positive electrode material. The chemical general formula of the lithium-rich manganese-based solid solution positive electrode material is xLi2MnO3.(1-x)LiNiCoMn<c>O2, wherein x is more than or equal to 0.2 but less than or equal to 0.7, (a+b+c) is equal to 1, a is more than or equal to 0.2 but less than or equal to 0.8, c is more than or equal to 0.1 but less than or equal to 0.5, the lithium-rich manganese-based solid solution positive electrode material is dense in particles, no hollow phenomenon exists, the tap density TD is larger than 2.0g/cm<3>, the particle size distribution coefficient K90 is 0.6-0.9, and K90=(D90-D10)/D50. The lithium-rich manganese-based solid solution positive electrode material has the advantages of good sphericity, dense particles and narrow particle size distribution, the capacity and the electrochemical performance of the lithium-rich manganese-based solid solution positive electrode material can be remarkably improved, and the cycle lifetime of the lithium-rich manganese-based solid solution positive electrode material can be remarkably prolonged; and moreover, according to the preparation method, a complexing agent does not need to use, and the preparation process is simple, is easy and stable to control, is low in production cost, is environmental-friendly, has no pollution and is suitable for industrial production on a large scale.