438results about How to "Curb churn" patented technology

The invention relates to an ecological protection method for a high steep side slope. The method mainly comprises the steps of slope surface treatment, concrete shotcrete and rock bolt support, vegetating hole arrangement, net spreading, spray material preparation, granule spray sowing, maintenance, management, and the like. In the method, guest soil materials such as humus loam rich in organic matters and clay are utilized to undergo a granule reaction after mixed with a granule agent at the moment of spray sowing so as to form a greening template which has the same high order granule structure as natural soil and strong erosion resistance and can suppress water and soil loss. After a diversified mature plant community which is in harmony with surrounding vegetation environment is formed, the slope surface can be protected, which can effectively resist diseases and insect pests and maintain the ecological balance. Post maintenance management and expenses can be saved. All used materials can be naturally degraded, have no pollution to the environment and can purify air and beautify the environment. Equipment of the method does not need to be hung on the slope surface for construction, and spray sowing operations are carried out only below the slope surface, thus the method has high construction speed and safety. The method is suitable for slope surfaces which are difficult to green, and the like, such as various high steep and unstable slope surfaces, bare slope surfaces having high greening expected values, and the like.

The invention relates to a poly-gamma-glutamic acid synergistic fertilizer for strengthening fertilizer effect, which belongs to the fertilizer field. The invention comprises graininess fertilizer which comprises the poly-gamma-glutamic acid. The contents of the poly-gamma-glutamic acid and fertilizer in weight are as follows: 0.01 to 1 percent of the poly-gamma-glutamic acid and the remained content is fertilizer. The contents of poly-gamma-glutamic acid of the invention are strictly controlled and the poly-gamma-glutamic acid can be conveniently fertilized. The poly-gamma-glutamic acid is combined with to make full use of the feature as absorption promoter of fertilizer of the poly-gamma-glutamic acid, therefore, crops output is further raised. The fertilizer is released slowly and prolonged by around 4 times compared with the traditional fertilizer in soil. The invention promotes crop absorption and inhibits fertilizer ingredient decomposition and loss, therefore, fertilizer use is directly decreased by more than 20 percent. The pollution to environment is reduced without excessive or inappropriate fertilization.

The invention discloses an integrated flexible electrode and belongs to the technical field of electrochemical cells. The integrated flexible electrode is composed of three layers which are successively a polymer layer, a graphene layer and an active material layer. According to the invention, the multi-component integrated design is realized. The graphene layer is formed by dispersing and coating graphene onto the polymer layer. The active material layer is formed by coating slurry onto the graphene layer. After drying, the integrated flexible electrode material is obtained. The integrated flexible electrode material has excellent flexibility and tensile strength and is applicable to flexible cells. A preparation method of the integrated flexible electrode is simple and easy to control, can be applied to various electrode materials and has potential application value. Mass and low-cost preparation can be realized.

The invention discloses a method for enriching and recovering rare earth from phosphorite, which drives a large quantity of rare earth elements to be enriched into a phosphate system and be separated and recovered by inhibiting loss of the rare earth in phosphogypsum through optimizing the technological conditions and adding a calcium sulphate crystal seed and/or an active additive on the premise of not changing the wet-method phosphate process. Compared with the prior art, the method controls proper technological conditions and particularly adds the calcium sulphate crystal seed and/or the active additive, can improve the crystalline morphology of the phosphogypsum, reduce the eutectic effect and the adsorption effect of phosphate rare earth and calcium sulphate, reduce enrichment of the phosphate rare earth and the calcium sulphate to the phosphogypsum, make the enrichment ratio of the rare earth in phosphate reach more than 80 percent, and be favorable for recovering the rare earth from the phosphate. Moreover, the method can meet the requirements of wet-method phosphate production, has simple technique and high content of rare earth in the phosphate, and can adopt proper technology to recover rare earth from the phosphate and realize effective combination of rare earth recovery technology and phosphorization technology.

The invention discloses lithium-sulfur battery anode material comprising porous metal. The porous metal is compounded with lithium sulfide so as to be used as the anode material of the lithium-sulfur battery. The invention also discloses a preparation method of the lithium-sulfur battery anode material comprising the porous metal. According to the invention, by utilizing the characteristics of high electric conductivity, high porosity, high specific surface area and the like of the porous metal, elemental sulfur or the lithium sulfide is filled into pores of the porous metal, metal/sulfur composite material can be manufactured, and the utilization rate of the elemental sulfur and the lithium sulfide and the multiplying performance of the composite electrode can be increased; and simultaneously, by utilizing the strong interaction between the porous metal and the elemental sulfur or the lithium sulfide, the elemental sulfur, the lithium sulfide or polysulfide generated in a charge-discharge process can be more firmly attached on the surface of the porous metal, the dissolution of the polysulfide in an electrolyte, the shuttle effect caused by the dissolution of the polysulfide in the electrolyte and the deactivation on an anode and a cathode by redox product of the polysulfide can be restrained, and the circulation stability of a metal/sulfur composite electrode and the lithium-sulfur battery can be increased.

The invention relates to a selective hydrodesulfurization catalyst. The catalyst comprises, by mass, 3-5% of CoO as an active component, 10-13% of MoO3 as an active component, 2-3% of B203 as a carrier modification aid, 1-2% of P2O5 as a carrier modification aid, 1-1.5% of K2O as a carrier modification aid and 75.5-83% of a composite oxide carrier. The catalyst carriers comprise a zinc aluminate spinel-containing zinc oxide-alumina composite oxide prepared by nonconstant pH alternating titration. The catalyst has good desulfurization selectivity and stability.

The present invention provides a kind of catalyst for selectively oxidizing tertiary butanol or isobutene to synthesize methyl acrolein and its preparation process and application in gas phase catalytic oxidizing synthesis of methyl acrolein. The catalyst of the present invention is one kind of composite oxide containing Mo, Bi, Fe, Co, Sb, Pb, Yb, etc. and has high catalytic activity and stability, long service life, isobutene converting rate higher than 95 % and methyl acrolein selectivity over 86 % in the presence of molecular oxygen.

The invention relates to a preparation method of an in-situ polymerization solid-state battery. The preparation method comprises the following steps: step S1, mixing electrolyte salt, an organic solvent, 1-10 percent of acrylic ester and 0.1-1 percent of an initiating agent AIBN to prepare a mixture I, wherein the acrylic ester is one of or more of isopentyl tetraacrylate, pentaerythritol triacrylate and allyl hydroxyethyl ether; step 2, weighing an active substance, acetylene black and positive pole piece made by PVDF according to the mass ratio of 6:3:1, taking a lithium sheet as a negativeelectrode, taking the mixture I as an electrolyte and taking a polypropylene thin film as a diaphragm assembly battery; step S3, putting the battery in a drying box and maintaining for 1-30 minutes after the battery is heated to 40-80 DEG C. The preparation method provided by the invention has the benefit that by adopting an in-situ heat curing technology, the interface problem between the electrolyte and a battery anode and cathode can be better solved.

The present invention discloses a graphene-sulfur composite electrode material, a preparation method and an application thereof, and belongs to the field of electrochemical batteries. According to the graphene-sulfur composite electrode material, a uniformly-dispersed graphene oxide aqueous solution, an organic solution of sulfur, and a miscible solvent are subjected to mixing stirring, and then are subjected to a hydrothermal reaction to form a three-dimensional macroscopic body structure with sulfur nanoparticles uniformly distributed and anchored on the fibrous graphene surface, and low temperature freeze-drying is performed to obtain the graphene-sulfur composite material. According to the present invention, the electrode material is the microcosmic structure with sulfur nanoparticles uniformly anchored on the interconnected fibrous graphene surface; and according to the battery design, after the graphene-sulfur material is cut to obtain the corresponding thickness, the obtained material is pressed and then can be directly used as the lithium-sulfur battery positive electrode with no metal current collector, no conductive agent and no adhesive.

A combined cultivation method for water and soil conservation for sloping farmlands relates to cultivation methods for water and soil conservation and solves the problem that using the single cultivation technique for holding water is unsatisfactorily effective. The combined cultivation method includes: firstly, adjusting ridges of sloping farmlands on downward slopes and inclined slopes under ridge plowing adjusted into transverse slope ridges, and adopting contour farming and belt planting; secondly, building ridges, and planting protective plant belts on the ridges; thirdly, subsoiling forfarming; fourthly, performing furrow damming; and fifthly, performing no-tillage conservation tillage. Furrow subsoiling and furrow damming are technically combined and integrated according to soil and weather characteristics of a black soil area, so that water and soil loss is reduced or avoided for sloping farmlands to the greatest extent, water and soil are conserved, water utilization rate isincreased, and crop yield is increased evidently. By the method, soil saturation and infiltration speed ratio is increased by 24.1% in processing treatment, water utilization rate is increased by more than 15%, crop yield is 30kg per mu, and 100 Yuan per mu is increased..

The invention relates to the technical field of agriculture, and provides an orchard grass intercropping method. The method comprises the following steps: zones are divided, wherein grass is planted between orchard lines, and straws are laid within a range of 0.5m from tree trunks; plowing is carried out, wherein an EM inoculant is spread to grass planting zone soil, and plowing is carried out after 20-30 days; seed soaking is carried out, wherein grass seeds are soaked with the EM inoculant for 4-12h, and are air-dried at a shaded and ventilated place; sowing is carried out, wherein a sprinkler irrigation treatment is carried out with a diluted composite bacterial fertilizer, and uniform sowing is carried out with a sowing amount of 12-15kg/Mu when the soil is moist; management is carried out, wherein watering is carried out after sowing, and sprinkler irrigation is carried out with a diluted EM inoculant when seedlings uniformly shoot; and maintenance is carried out, wherein a grass height is maintained at 10-20cm, and a mixture of trimmed-off grass and straws is laid within a range of a tree base. The method has water-retaining, fertilizer-retaining and drought-resisting functions. With the method, farm chemical is not applied, and the effect of green manure is good. Chemical fertilizer is saved, and disease degree can be reduced from the source. Soil salinization can be effectively ameliorated, and fruits can be green and organic.

A method for preparing embedded lanthanum oxide composite resin mainly includes the steps that strong basicity anion exchange resin is added into a lanthanum nitrate solution, the mixture is fully stirred for reaction and then filtered, the resin is placed in a sodium hydroxide solution, reacts at the constant temperature, and then is filtered and washed to be neutral, and the processed resin is treated in a thermal mode to obtain the embedded lanthanum oxide composite resin. The method for dephosphorization by using the embedded lanthanum oxide composite resin includes the steps that the composite resin is placed in a glass adsorption column, and waste water polluted by phosphate flows downstream through the static bed column adsorption device filled with the adsorption material, wherein the temperature of the waste water is controlled to be 10 DEG C-50 DEG C, and the pH is controlled to be 2-10; when the concentration of the phosphate in outlet water is larger than 0.5 mg/L, a mixed solution of sodium hydroxide and sodium chloride is adopted for desorption, and the desorbed adsorption material can be recycled. When a polluted water body contains a great deal of co-existing ions such as sulfate radical, chloride ions and nitrate, the concentration of the phosphate in the phosphorus waste water treated through the lanthanum oxide composite resin can be reduced below the town sewage discharge standard, and secondary pollution is avoided.

The invention relates to a chiral diphosphine ligand and a chiral catalyst, and a preparation and application method thereof. The preparation method of a BINAP (2,2'-bis(diphenylphosphino)-1,1'-binaphthyl) chiral diphosphine ligand based on novel imidazole and imidazole cation modification. Imidazole and imidazole cation are introduced to the 5,5'- position of the BINAP molecule framework to synthesize the chiral diphosphine ligand. The assembly of the imidazole and imidazole cation into the chiral diphosphine ligand molecule can effectively enhance the stability of the chiral catalyst in an ionic liquid and the affinity with the imidazole ionic liquid, and avoids loss of the catalyst in the cyclic process. The imidazole-modified chiral diphosphine ligand has the following chemical structural formula, wherein the spatial configuration of the imidazole-modified chiral diphosphine ligand is S type or R type.

The invention relates to a preservation-resisting energy bar which is prepared from the following raw materials in parts by weight: 1000-5000 parts of protein powder, 1500-3500 parts of syrupy, 500-1500 parts of a water-retaining agent, 200-1000 parts of lipid, 500-1000 parts of carbohydrate, 500-2000 parts of a cocoa butter or cocoa butter substitute product and 50-150 parts of pure water. The energy bar made by using the formula and the method provided by the invention is fine and smooth in taste, fragrant and sweet in flavor, convenient to carry over and unlikely to deteriorate and is particularly applicable to special purposes such as long-term wild sports and military training as certain moisture and soft taste are still maintained after being preserved for a long time.

The invention provides a method for preparing a titanium tungsten oxide coated carbon nano-tube platinum-supported electro-catalyst, belonging to the technical field of fuel cells. According to the method, titanium tungsten oxides are uniformly coated on the surfaces of carbon nano-tubes by adopting a sol-gel method, and titanium tungsten oxide coating layers with high crystallinity and high conductivity are formed through heat treatment so as to support a platinum catalyst. On one hand, the highly-crystalline titanium tungsten oxides are uniformly coated on the carbon nano-tubes, so that electron transmission channels are constructed, the conductivity is enhanced, the corrosion to a support is avoided effectively, the loss of the catalyst is inhibited, and the activity, stability and platinum utilization rate of the catalyst are improved greatly. On the other hand, the decomposition of an intermediate product, namely hydrogen peroxide, of oxygen reduction is accelerated by the titanium tungsten oxide coating layers, so that the yield of hydrogen peroxide is reduced, the influence on the catalyst and electrolyte membranes caused by hydrogen peroxide is reduced, and then, the service life of a fuel cell system is prolonged. The method provided by the invention has the advantages that the method is simple, the industrial production is facilitated, and the prepared catalyst can be applied to the fuel cells which take proton exchange membranes as electrolytes.

The invention relates to a methanol to aromatic catalyst containing two molecular sieves and a preparation method. The methanol to aromatic catalyst comprises, based on the weight of the catalyst, 40 wt%-85 wt% of the total content of a zinc-aluminium compound modified ZSM-5 molecular sieve and a nickel modified Y-shaped molecular sieve, 0.5 wt%-5.0 wt% of rare earth oxide and the balance aluminium oxide binder, wherein the ratio of the weight content of the zinc-aluminium compound modified ZSM-5 molecular sieve to the modified Y-shaped molecular sieve is 9:1-1:1. The invention further discloses a method for preparing the catalyst. The methanol to aromatic catalyst is used in a methanol to aromatic process, has high light weight aromatic yield and is low in dry gas and liquefied gas productivity. The wastage rate of zinc oxide active components of the catalyst is low, and the stability is high.

The invention discloses a polyamide, a synthesis method and application thereof, and a polyamide product. The synthesis method comprises the following steps: feeding: proportionally adding dibasic acid monomer, diamine monomer and other reaction assistants into a reaction kettle; charging shielding gas into the reaction kettle until the pressure in the reaction kettle is 0.2-1.0 MPa, wherein the shielding gas contains 60-100 vol% of CO2; heating the reaction kettle to perform prepolymerization reaction on the mixture in the reaction kettle, discharging after the prepolymerization reaction is finished, drying the prepolymerization product, and carrying out solid-phase tackification to obtain the polyamide. The terminal amino content and terminal carboxyl content in the polyamide prepared by the synthesis method are low. The polyamide disclosed by the invention is applicable to a manufacturing material of electric and electronic equipment, automobile part, office supply or home supply. The invention also discloses a manufacturing material of electric and electronic equipment, automobile part, office supply or home supply.

The invention relates to an edible mushroom flavor paste and a production method thereof, and belongs to a food processing technology. The entire plants of edible mushrooms are cleaned and screened to remove impurities, and then are subjected to washing, flavor-optimizing, limited-dehydrating, crushing, blending, sterilizing and other treatments so as to produce a sauce seasoning which has well palatability and intense aromas and flavor. The production method provided by the invention can be used for widening the application range of edible mushroom and increasing the varieties of the sauce seasonings; in addition, the product has high protein and high dietary fiber without any artificially synthesized additives, and is convenient, healthy and nutrient serving good item.

The invention relates to a hydrogenation method of C4 fraction containing rich alkynes and dialkenes. A raw material containing C4 fraction and H2 enter two hydrogenation reactor which are connected in series; each reactor is telescopic, wherein the inner tube is filled with a catalyst, and the outer tube is filled with a heat removal medium which is 8-18 DEG C new water; the mol ratio of the hydrogen to the inlet total alkyne and dialkene content of the first reactor is 1.0-6.0, the mol ratio of the hydrogen to the inlet total alkyne and dialkene content of the second reactor is 1.0-6.0, the reaction temperature of the reactor inlet is 20-60 DEG C, the reaction pressure is 0.5-4.0 MPa, and the liquid hourly space velocity is 1.0-30 h<-1>; the reaction product is cooled and enters a gas-liquid separation tank to be separated; and the catalyst in the reactor is an aluminum-oxide-supported palladium-base catalyst or copper-base catalyst. The alkyne content in the material hydrogenated by the method is less than 100 mu g/g, and the dialkene content is less than 1000 mug/g. The material hydrogenated by the method can be used as domestic liquefied gas or methylethylketone raw material.

The fluidized bed reactor for preparing vinyl chloride through reaction between hydrogen chloride and acetylene and preparation process belongs to the field of chemical technology. The fluidized bed reactor includes fluidized bed, reactant material gas inlet, heat exchange pipes, member, cyclonic separator, reacted gas outlet, catalyst feeding port and catalyst removing port connected successively to the wall of the fluidized bed. After the catalyst in the molar ratio to the reactant material of 1.01-1.1 to 1 is fed, hydrogen chloride and acetylene are introduced are converted through reaction into vinyl chloride completely, and the reacted product is made to enter the post equipment through the gas outlet. The present invention has simple reaction member, high bubble crushing effect, low catalyst loss, greatly strengthened gas-solid contact, high vinyl chloride product purity and other advantages.