63results about How to "Effective dissociation" patented technology

The invention discloses a composite gel polymer electrolyte membrane and application thereof. The composite gel polymer electrolyte membrane is prepared by adding core-shell ordered mesoporous silica composite particles into a conventional gel polymer electrolyte system, wherein the adding mass of the core-shell ordered mesoporous silica composite particles is 5 to 30 percent based on the mass ofa polymer matrix in the conventional gel polymer electrolyte system; the core-shell ordered mesoporous silica composite particles take ordered mesoporous silica particles as cores; a polymer is grafted and coated on the outside surfaces of the ordered mesoporous silica particles to form shells; and the shell polymer has good compatibility with the polymer matrix in the conventional gel polymer electrolyte system. The composite gel polymer electrolyte membrane prepared in the invention has higher room-temperature ionic conduction capacity, simultaneously has better mechanical strength and heatresistance, and is suitable for polymer lithium ion batteries.

The invention discloses a kit for processing an antigen-antibody immune complex in a serum or plasma sample. The kit is prepared from a meta-acid buffer solution serving as a solvent, high-concentration salt ions, an ionic surfactant, a nonionic surfactant, a reducing agent, urea, trehalose and a defoaming agent. The kit is suitable for processing the serum or plasma sample which is suspected to generate the antigen-antibody immune complex to further influence the antigen or antibody detection result, and the processed serum or plasma sample is suitable for the sample detection, such as enzyme-linked immunoassay and chemiluminescence immunoassay, while the sample which does not generate the immune complex does not affect the normal detection result after being processed via the conditioning fluid of the kit. The kit disclosed by the invention can effectively dissociate the formed antigen-antibody immune complex in the sample, greatly improves the detection sensitivity of the sample, and has a very high clinical application value.

The invention relates to a method for recovering germanium from germanium-containing materials, particularly relates to a method for recovering germanium from germanium-containing materials of non-ferrous smelting industry, and belongs to the technical field of hydrometallurgy. The method comprises the steps of leaching germanium-containing materials as raw materials of which the particle sizes are 100 meshes with inorganic strong acid as an leaching agent of which the concentration is 50-120g/L and an aid-leaching agent at 35-95 DEG C and filtering to obtain a germanium-containing leaching solution, adjusting the pH value of the germanium-containing leaching solution to be 6-9, stirring and carrying out liquid-solid separation to obtain germanium residues, and calcining the germanium residues at 350-500 DEG C to obtain a crude germanium dioxide product, wherein the aid-leaching agent is one of tartaric acid, water-soluble tartrate, citric acid, water-soluble citrate, oxalic acid and water-soluble oxalate. The method disclosed by the invention has the advantages of simple process, easiness in operation, high recovery ratio of germanium, large enrichment ratio, and convenience in industrial production and application.

The invention provides a binder used for a lithium ion battery anode. The binder is an aromatic polymer containing a lithium fluorosulfonate side group, or an aromatic polymer containing a lithium fluorosulfimide side group, or a mixture of the two. The binder has strong binding power, and powder does not fall off. Ethanol and water are adopted as the solvent, and organic solvent consumption is reduced, thereby reducing harm to the environment. The side chain unit contains the -SO3Li or -SO2N<->Li<+>SO2- structure, so that lithium ions can be effectively dissociated so as to supplement lithium ions to the lithium ion battery anode, thus not only improving the utilization rate of lithium ions, but also indirectly enhancing the battery capacity. Experiments prove that the lithium ion battery taking the binder as the anode binder has stable electrochemical performance, and cannot be degraded along with the charge-discharge cycle of the battery, thereby effectively prolonging the service life of the battery.

The invention discloses a flotation method of aphanitic graphite. The method comprises an ore grinding process, a two-stage pulp mixing process and a flotation process. The method is characterized in that original graphite ores are fed into an ore grinding machine; water is added to a product subjected to ore grinding to obtain ore pulp with the mass percent concentration of 10 to 50%; then the ore pulp is fed into a first-stage high-turbulence pulp mixing device to stir and mix; the oil pulp subjected to the first-stage mixing is fed into a second-stage pulp mixing device, and water is added to the second-stage pulp mixing device to dilute until the mass percent concentration is 5 to 10%; a PH regulator, a dispersing agent, a collecting agent and a foaming agent are sequentially added to the oil pulp; the oil pulp subjected to the second-stage mixing is fed into a rough selecting device to sort; the roughing concentrate is subjected to multi-stage concentration to obtain the final concentrate; the rougher tailings are subjected to multi-stage scavenging to obtain the final tailings. According to the method, the high-turbulence pulp mixing method and the flotation method are combined to achieve high-precision sorting of the aphanitic graphite, and the problem of efficient sorting of the aphanitic graphite can be solved.

The invention discloses a catalyst for catalyzing synthesis gas and benzene to prepare methylbenzene and xylene and a preparation method thereof. The catalyst is composed of a bimetallic oxide and anHZSM-5 molecular sieve with a silica-alumina ratio of 10 to 100, wherein the bimetallic oxide is an AxOy-ZrO2 solid solution, A is Zn, Cd or Ga, the molar ratio of A to (A + Zr) is 0.01-0.4, and the amount of the AxOy-ZrO2 solid solution accounts for 10-60 wt% of the total amount of the catalyst. The catalyst has the beneficial effects that the catalyst is applied to the reaction of preparing methylbenzene and xylene through alkylation reaction of synthesis gas and benzene, and has high activity and high selectivity.

The invention discloses an organic-inorganic hybrid nano material, and a preparation method and an application thereof. The nano material is composed of a donor-acceptor-type organic compound and an n-type inorganic semiconductor material; the molecular formula of the donor-acceptor-type organic compound is shown in formula I or formula II; the mass ratio of the donor-acceptor-type organic compound to the n-type inorganic semiconductor material is 1: (50-250). The organic-inorganic hybrid nano material has an excellent photoelectric property, and can be used for building a photoconducting device. The preparation method provided by the invention is simple and feasible, can realize bonding of the donor-acceptor-type organic compound on the surface of the n-type inorganic semiconductor material, and can realize effective grading electron transfer so as to promote the effective dissociation of excitons and improve the conversion efficiency of the photoconducting device, so that a photoelectric material with excellent performance is provided. The organic-inorganic hybrid nano material and the preparation method have a wide application prospect in the field of photoconducting devices.

The invention relates to a parameter analysis method of paigeite ground by adopting a microwave assisted method and belongs to the technical field of mineral processing. The parameter analysis method comprises the following steps: (1) carrying out microwave roasting on paigeite in a microwave oven, ensuring that the microwave power is 1500-2500 W, heating to be 450-650 DEG C and ensuring that the feeding quantity is 50-250 g; (2) grinding the paigeite treated by microwaves for 5-6 minutes and screening parts of which the grain sizes are less than or equal to 75 [mu]m; (3) optimizing the ball-milling process of the paigeite by adopting the central composite design of a response surface method, wherein the selected influence factors are microwave power X1 of which the unit is W, microwave roasting temperature X2 of which the unit is DEG C and feeding quantity X3 of which the unit is g, and a response value Y which is set to be the yield percentage of grains with the grain size of less than or equal to 75 [mu]m; (4) analyzing the influence of the selected experimental factors on the grinding efficiency of the paigeite through Design-Expert experimental design optimization software so as to obtain significant factors and optimal technological conditions capable of influencing the paigeite grinding efficiency.

The invention relates to a method for removing pyrrhotite from high-sulfur iron ore concentrate and belongs to the technical field of mineral engineering. The sulfur content of high-sulfur iron ore concentrate is higher to seriously affect the quality of the iron ore concentrate. Pyrrhotite is likely to have oxidation and argillization, and the oxidization degrees are different, so that the sulfurcontent in the iron ore concentrate is difficult to be reduced below 0.3%, and the recovery rate loss of the iron ore concentrate is larger. According to the method, through proper ore grinding, mostof monomers of pyrrhotite are separated and are prevented from excessively grinding to avoid argillization. Efficient and feasible aluminum sulfate or the mixture of aluminum sulfate, sodium phosphate and ammonium fluosilicate is adopted as an activator and a pH regulator of pyrrhotite, and a collecting agent with better selectivity and collecting performance is adopted to activate the mineral surface of pyrrhotite, and the electrical charge state of the surface of mineral in ore pulp is better controlled, so that magnetite and pyrrhotite are effectively separated and high-quality iron ore concentrate with high grade and high recovery rate and rough concentrate of pyrrhotite are obtained.

The invention discloses a method for extracting beta-glucan from Sparassis crispa. The method realizes pretreatment of the Sparassis crispa abd effective destroy of cells through physical grinding andaddition of a wall-breaking enzyme in order to dissolves out contents, so the extraction rate of the glucan is increased; high-pressure microwave treatment makes separation of glucan and cell tissuesfurther realized in order to achieve dissociation, so finally the glucan is obtained by extraction; and starch, proteins and other polysaccharides can be effectively removed by adding an impurity removal enzyme and ammonium sulfate, so that the purity of glucan is greatly improved.

The invention discloses a method for recovering pyrite from coal gangue. The method is characterized by comprising the following steps that the coal gangue is subjected to two-stage closed-circuit crushing, grinding, roughing, primary scavenging, secondary scavenging, primary cleaning and secondary cleaning. In the roughing step, acidified water glass, xanthate and number two oil are sequentially added to fed ore pulp, so that rougher concentrates and rougher tailings are obtained. In the primary scavenging step, acidified water glass, xanthate and number two oil are sequentially added to the rougher tailings, so that primarily scavenged concentrates and primarily scavenged tailings are obtained. In the secondary scavenging step, acidified water glass, xanthate and number two oil are sequentially added to the primarily scavenged tailings, so that secondarily scavenged concentrates and kaolin tailings are obtained. In the primary cleaning step, acidified water glass is added to the rougher concentrates, so that primary cleaner concentrates and primary cleaner tailings are obtained. In the secondary cleaning step, acidified water glass is added to the primary cleaner concentrates, so that the pyrite and secondary cleaner tailings are obtained. The method for recovering the pyrite from the coal gangue is simple; the pyrite recovery rate is high; environmental pollution is reduced; the pyrite can be produced on a large scale.

The invention discloses a releasing agent for detecting the content of 25-hydroxyvitamin D in a human serum sample. The releasing agent is prepared from, by mass-to-volume ratio, 0.05-0.3% of sodium dodecyl sulfate, 1-20% of dimethyl sulfoxide and 1-10% of ethyl alcohol; during preparation, the sodium dodecyl sulfate is weighed firstly, after the sodium dodecyl sulfate is dissolved in a small quantity of 0.05 M Tris-NaCl buffer solution, the dimethyl sulfoxide and the ethyl alcohol are added, 0.05 M Tris-NaCl buffer solution is used for constant volume, concentrated hydrochloric acid is used for adjusting the pH value to 7.0, and a releasing agent finished product is obtained. The releasing agent has the advantages that the preparation method is simple, and the components used are less harmful to the environment and organisms; when in detection, the 25-hydroxyvitamin D and the metabolite of the same can be effectively released from binding protein, and thus be fully detected; there isno need to pretreat the sample, the sample can be added with other reagents at the same time, and it is convenient to conduct automatic operation.

The invention discloses a method for filling and synthetizing full waterborne polyurethane base leather through nano attapulgite. The method includes adopting non woven fabrics as the base fabric, and soaking the non woven fabric in NaCl water solution; drying and ironing the soaked base fabric, and calendering the surface; adopting attapulgite as raw material, smashing, soaking in water, extruding through opposite rollers, aging and adding anionic waterborne polyurethane for high speed pre-dispersion; adding foaming agent, foam stabilizing agent and aqueous colorant sequentially, mixing at high speed, and obtaining waterborne polyurethane synthesis leather slurry; soaking the pretreated base fabric in the waterborne polyurethane synthesis leather slurry, scraping the surface, drying, and obtaining the waterborne polyurethane base leather. The attapulgite filler is low in cost and easy to prepare, the synergistic reinforcement effect of fibrillar attapulgite and associated minerals is played completely, the mechanical property of the synthesis base leather is improved effectively, organic solvent is omitted during production, safety and environment protection can be achieved, the process is easy and simple to implement, and large-scale production is easy to implement.

The invention discloses a method for preparing electronic-grade high-purity quartz sand, which comprises the following steps: washing quartz raw ore with ultrahigh-pressure water, crushing into 30 mm quartz blocks, finely selecting the quartz blocks, pretreating by adopting high-voltage electric pulse, crushing and screening to prepare-40-mesh quartz sand, carrying out magnetic separation on the quartz sand to remove magnetic minerals, and drying to obtain the electronic-grade high-purity quartz sand. Non-quartz silicate minerals are removed through flotation, residual impurity minerals on the surfaces of quartz sand and quartz particles are removed from flotation fine sand through dynamic acid pickling, the flotation fine sand is dried, calcined, rapidly cooled and acid-pickled, acid-pickled fine sand is graded to obtain quartz sand with a certain specification, and the quartz sand is subjected to vacuum degassing, cooling and packaging. It is ensured that the product meets the quality requirement of high-purity quartz sand for electronic products SJT 3328.1-2016, and the requirement of the domestic electronic industry for high-purity quartz sand is met.

The invention discloses a production online flotation arsine-reduction method for high arsenic-containing copper concentrate. Firstly, bulk flotation high arsenic-containing copper concentrate is produced through a copper-sulfur-arsenic bulk flotation technique, and tailings are treated through a tin re-flotation technique; before copper-sulfur-arsenic separation flotation for arsine reduction, a long-conical hydrocyclone is adopted for slight steel forging and classified fine grinding, inhibitors are added to achieve effective monomer separation, analytic reagent removal and reinhibition; and finally, production online arsine reduction is conducted through the copper-sulfur-arsenic separation flotation arsine-reduction technique, low arsenic-containing copper concentrate and high arsenic-containing copper-sulfur-arsenic separation sulfur concentrate are produced, the propose of production online direct flotation arsine reduction in the production process of tin-copper-sulfur-arsenic symbiotic complex refractory multi-metal sulfide ores is achieved. According to the production online flotation arsine reduction method for the high arsenic-containing copper concentrate, the steps of the copper concentrate arsine reduction technique are simplified, operation is easy, the production online flotation arsine reduction method is practical, operation cost is low, the arsenic content of the copper concentrate is low, copper metal loss in the arsine reduction technological process is greatly reduced, and the recycling rate of copper and tin metal is increased.

The invention relates to a laboratory ore grinding method for an unevenly inlaid gold ore. The unevenly inlaid gold ore is ground by adopting a laboratory mill. The laboratory ore grinding method comprises the steps that ore grinding is conducted, ground gold ore is added into a first laboratory mill for conventional ore grinding, and ground to be -75 [mu]m accounting for 80%, and then dischargingis conducted to obtain first ore pulp; screening is conducted, a standard screen of 38 [mu]m is added to screen the first ore slurry, and the first ore slurry is screened into size fractions of +38 [mu]m or above and size fractions of -38 [mu]m or below; regrinding is conducted, the size fractions of +38 [mu]m or above are added into a second laboratory mill for regrinding, and ground until the conventional standard screen of 75 [mu]m is used for screening out size fractions of +75 [mu]m accounting for 10% of raw ore, and then discharging is conducted to obtain second ore pulp; and mixing isconducted, the size fractions of -38 [mu]m or below are mixed with the second ore pulp to obtain third ore pulp, the comprehensive ore grinding fineness of the size fractions of +75 [mu]m of the thirdore slurry accounts for 10%, namely size fractions of -75 [mu]m account for 90%, and finally the third ore slurry enters floatation operation. The laboratory ore grinding method has the advantages ofeffectively dissociating target minerals, preventing the phenomena of over grinding or under grinding, creating good floatation particle size conditions for the subsequent floatation operation and the like, and is suitable for the application to the field of non-ferrous metal beneficiation.

The invention relates to the technical field of in-vitro diagnosis and detection, and particularly relates to a 25-hydroxyvitamin D detection kit, a preparation method and a detection method. The 25-hydroxyvitamin D detection kit comprises a reagent R1, a reagent R2, a reagent R3 and a sample treatment reagent, wherein the reagent R1 comprises a streptavidin magnetic particle solution; the reagentR2 is prepared from an alkaline phosphatase labeled 25-hydroxyvitamin D monoclonal antibody solution; the R3 reagent is prepared from a biotin labeled 25-hydroxyvitamin D antigen solution; the sampletreatment reagent comprises a weakly acidic buffer solution, a reducing agent and a lower alcohol solvent. The kit provided by the invention has high sensitivity, specificity and a wide detection range, can be used for detection only by using 40 [mu]L of serum or plasma, has good patient experience, can be combined with a full-automatic chemiluminescence analyzer, and realizes automatic monitoring.

The invention provides a supercritical extraction method of maca essential oil. The method comprises the three steps of pulverization, supercritical fluid leaching and separation. Mechanical wall breaking and granulation are performed to provide favorable conditions for extracting effective components in maca; by adopting a CO2 supercritical fluid leaching mode, the effective components in the maca are firstly extracted, and the effective components are converted into a free state in the CO2 supercritical fluid system; and the extraction pressure is lowered to selectively extract the effective components.

The invention relates to an enrichment method of low abundance protein in bee venom. The method includes: using hexapeptide ligand microspheres bonded with porous poly(2-hydroxyethyl methacrylate) granules as absorbent base, mixing the absorbent base with bee venom to absorb the protein in the bee venom, washing with PBS (phosphate buffered saline) buffer solution to remove excess high-abundance protein, and eluting the protein absorbed to the absorbent base with eluent to obtain the eluent with the enriched low-abundance protein. The enrichment method of low abundance protein is efficient, stable, well repeatable and highly specific and has great significance to enhancing the study on low-abundance protein, the search on information of more allergens in bee venom, the development of traditional Chinese medicines, the study on disease diagnosis markers and occurrence mechanisms of disease, and the like.

According to the estradiol release reagent and the detection kit thereof, the estradiol release reagent can influence the combination of estradiol and sex hormone binding protein, so that estradiol isreleased; the estradiol releasing reagent contains at least one of a reagent for competitively binding to the sex hormone binding protein and a reagent for reducing the binding force between estradiol and the sex hormone binding protein. Compared with the prior art, the estradiol releasing agent is used as a component of an estradiol enzymatic chemiluminescence immunoassay reagent, and estradiolcan be rapidly and effectively dissociated from albumin and sex hormone binding protein.