117results about How to "Suitable for industrial production requirements" patented technology

This invention provides an additive which can reduce the phenols content of cigarette fumes selectively; the additive is an inorganic carrier or acetate fiber which can load ionic liquid, is added into the filter of acetate fiber so as to produce a binary complex filter, thus being capable of reducing the phenols content of cigarette fumes high selectively and having no effect on the cigarette mouth-feel in the process of reducing the damage to smokers. The additive preparation technology of the invention is simple, and the additivity is convenient and the additive can meet the requirement of industrial production.

The invention discloses a high-gloss polypropylene material containing carbon black colorant which is formed by processing granular homo-polypropylene, homo-polypropylene powder, an inorganic filler, carbon black, a lubricant, white mineral oil and other auxiliary agents, wherein the granular homo-polypropylene is granulated homo-polypropylene, the homo-polypropylene powder is un-granulated homo-polypropylene, and the inorganic filler is one of barium sulfate, calcium carbonate and French chalk, or a mixture of more than one type thereof. The preparation method comprises the following steps: firstly, pre-dispersing the carbon black, then pre-mixing all components, and finally utilizing a double-screw extruder for conducting extrusion granulation at temperature of 170-230 DEG C. The invention resolves the problem that the modified polypropylene added with the carbon black colorant can not meet the requirements of household electrical appliances on appearance gloss and color, and realizes uniform mixing of the carbon black and all components to the highest degree; and the surface glossiness of the prepared high-gloss polypropylene material containing the carbon black colorant is up to 85.

A method for reproducing pyrmotide includes such steps as buying the developed pyrmotides, storing in cold storage case at -5-15 deg.C, choosing the bee larva, silkworm pupa, or grub as host, putting it in the internal plastic culture utensil, preferably selecting seed pyrmotide, inoculating it to said host, and test tube culture to obtain the second generation pyrmotide. It culture device is composed of a culture tray made of stainless steel and several pairs of internal and external culture utensils. A method for releasing the pyrmotides features that the cultured pyrmotides are loaded from test tubes to an open release box.

The invention provides a new method for synthesizing tapentadol hydrochloride and analogue of the tapentadol hydrochloride, and particularly provides a method for synthesizing a compound with the formula shown as a formula (1). Groups of the compound are defined in the specification. The invention also particularly provides a method for synthesizing the tapentadol hydrochloride and the analogue compound of the tapentadol hydrochloride by using 1-(3-substituted phenyl)-1-ketone compound as an initial raw material. According to the method, the raw materials are easy to obtain, and reaction conditions are mild; and the method is easy to control and operate, reduces production cost and is particularly suitable for industrial production.

The invention discloses a molecular engram material for selectively removing TSNA in cigarette gas and a preparation and application method thereof. The preparation steps of the molecular engram material are as follows: activating and silanizing silica gel before synthesizing the molecular engram material; then dissolving a functional monomer into a pore-forming agent, adding a crosslinking agent and an initiator, and silanizing the silica gel and making the silica gel react in the vacuum; and in succession, removing template molecules from a high molecular material on the surface of the silica gel through a chemical or physical method. A plurality of cavities which are formed in the polymer are matched with the template molecules in space and have multi-action sites in the specificity arrangement. The cavities have high-efficiency selectivity for the TSNA molecules. When the molecular engram material is used for the selective harm reduction of cigarette gas, the material is preferably applied to a compound filter tip and the addition amount of the material can be freely adjusted. When the molecular engram material is added into the filter tip with the addition amount of 40 milligrams per cigarette, the material can reduce the content of the TSNA in the cigarette gas by 25.1 percent without affecting other components in the cigarette gas, thereby reaching the aim of selective harm reduction.

The invention provides a method for preparing a transistor device. The preparation method comprises the following steps of: settling a blocking layer on a glass substrate and settling a non-crystalline silicon thin film; forming a covering layer on the non-crystalline silicon thin film and etching an induction port on the covering layer; forming a metal induction thin film on the covering layer, so that the metal induction thin film is contacted with the non-crystalline silicon thin film at the induction port; annealing for the first time to obtain a polysilicon island from the non-crystalline silicon thin film under the induction port; settling a metal absorbing layer on the metal induction thin film and annealing for the second time to form a crystallized thin film with crystalline grains distributed uniformly; removing the metal absorbing layer and the covering layer to obtain a polysilicon thin film; processing an active island pattern of a non-crystalline silicon thin film transistor (TFT) by using the polysilicon thin film; and forming a gate electrode, settling an insulating layer, opening contact holes of the grate electrode, the source electrode and the drain electrode, sputtering the metal electrodes, and settling metal interconnecting layer.

The invention relates to a molecularly imprinted material for selectively reducing TSNA content in cigarette smoke and the application thereof. The molecularly imprinted material is prepared as follows: before synthesizing the molecularly imprinted material, template molecules are mixed with functional monomers which can generate intermolecular force with the template molecules in order to generate interaction and form molecule complex; then a cross linker is added to form a highly cross-linking polymer material; then the template molecules are removed from the polymer material by chemical or physical methods. A plurality of cavities which can match with the space of the template molecules and has multi-functional sites arranged specifically are formed in the polymer; the cavities has effective selectivity to TSNA molecule. When being used for the alternative damage-reduce of cigarette smoke, the invention is best used in a composite mouth wand, and the added amount of the invention can be freely regulated according to needs. The invented substance can be added to the mouth wand according to the standard of 40mg per cigarette and can reduce the TSNA content of smoke by 24.6 percent without impacting the other components of the smoke, thereby realizing alternative damage-reduce.

An additive capable of reducing tar and carbon monoxide contained in cigarette is provided, as well as the application method of the additive, which contains inorfil loaded with metal-salt. The accretion provided by the present invention prepared and added conveniently with low cost is suitable for requirement of industrialized production, capable of well decreasing the tar and carbon monoxide contained in cigarette smoke and greatly reducing the harm to the smoker.

The invention discloses a treatment method for recovering and utilizing trimanganese tetroxide industrial wastewater. The method comprises the following processes of pretreatment manganese removal, plate-frame pressure filtration, mechanical filtration, ion exchange resin purification and the like. The method comprises the following steps: adding a neutralizer in waste water for regulating water with pH value between 8 and 11, then adding a proper amount of oxidizing agent, precipitating Mn<2+> in the solution, and filtering and removing, then filtering to remove the fine particles through mechanical filtration, finally passing the treated liquid through an ion exchange column by certain speed to remove the impurity ions like calcium and magnesium in water. The method of the invention is capable of thoroughly removing manganese by pretreatment, the obtained manganese oxide has high grade, the ion exchange resin is capable of thoroughly removing the ions of calcium, magnesium and the like, effluent quality is stable and can meet the water quality requirement of production. The invention has the advantages of simple equipment and operation, easy control of technology condition and low cost, and is suitable for industrial production requirement.

The invention belongs to the field of metallic material plastic processing and discloses a tubular product electromagnetic bulging forming device which comprises a pulse discharging circuit, a die assembly and a helix tube coil with unequal turn spaces, wherein the helix tube coil is connected with the pulse discharging circuit; the die assembly comprises a forming die; the forming die is provided with a forming inner hole; the forming inner hole is provided with a large end and a small end; the helix tube coil is placed in the forming inner hole of the forming die and comprises a forming coil; the end, close to the small end of the forming inner hole, of the forming coil is a wire close winding part, and the other end of the forming coil is a wire sparse winding part; and the turn space of the wire close winding part is smaller than that of the wire sparse winding part. According to the tubular product electromagnetic bulging forming device, a material is sequentially formed from bottom up through electromagnetic bulging and the combined action of inertia traction and die constraint; therefore, the demand of the forming force field is consistent with the distribution rule of the electromagnetic force field of the helix tube coil.

The invention discloses a new method for synthesizing rhodium caprylate (II), which is characterized by comprising the following steps: dissolving a certain amount of rhodium chloride in water; adding 120 to 300 theoretical percent of octylic acid into the water, and adjusting the pH valve of the obtained solution to between 4.5 and 6.5 by using alkali; heating the solution to the temperature of between 90 DEG C and 100 DEG C, reacting for 3 to 5 hours, and filtering the solution when the solution is hot; and fully washing by using water, and drying to obtain a green rhodium caprylate (II) product. The method for synthesizing the rhodium caprylate (II) has the advantages of high reaction speed, high yield (over 95 percent), high product purity (over 99 percent), small environmental pollution, and suitability for industrial production.

The invention belongs to the technical field of medicine, and specifically relates to a preparation method of a chiral intermediate 1R,2R-cyclohexane dimethanol. The chiral intermediate 1R,2R-cyclohexane dimethanol is an important intermediate of an antischizophrinic medicine lurasidone. Lurasidone has substantially treatment effects against both positive and negative symptoms of mental patients. A reduction agent adopted by the invention has low cost and stable property. The preparation method is suitable for industrialized productions.

The invention discloses a general flavone extract of seeds of nigella damascena l., nigella sativa l. or nigella glandulifera freyn et sint., and a preparation method and a use thereof. The extract is extracted from the seeds of nigella damascena l., nigella sativa l. or nigella glandulifera freyn et sint., and the mass percentage of general flavones is 50%-90% of that of the extract. The preparation of the extract comprises: extracting the seeds by water, alcohol or alcohol-water solution, then degreasing by an ether solvent, leaching by an organic solvent, carrying out adsorption and desorption by a macroporous resin column, concentrating, and drying to obtain the extract. The extract provided by the invention has anti-malignant tumor, anti-platelet aggregation and anti-inflammatory activities, is expected to develop into an anti-malignant tumor drug or an anti-platelet aggregation drug or an anti-inflammatory drug, and has significantly medicinal effect; in addition, the preparation method of the general flavone extract of the seeds of nigella damascena l., nigella sativa l. or nigella glandulifera freyn et sint. is simple, has high practicality, and is suitable for industrialized production requirements.

The invention relates to cigarette forming paper functional paint for selectively reducing harmful substances such as phenol and the like in smoke gas, which comprises compounds such as polyethyleneglycol, levulinate, triethylene-glycol diacetate and the like. The technology can be used for effectively reducing the release quantity of phenol and NH3 in the cigarette smoke gas at high selectivity, and the harm to smokers can be greatly reduced. The invention has the advantages of simple process, no pollution on the machine and low cost, and belongs to the good technology for reducing harmful ingredients in cigarette smoke gas.

The invention relates to the field of chemical synthesis, and discloses a preparation method of ambrisentan. According to the invention, (S)-phenethylamine is adopted as a resolving agent, and forms two diastereomers with 2-[(4,6-dimethyl pyrimidine-2-yl)oxy]-3-methoxy-3,3-diphenyl propionic acid in a specific solvent; diastereomers with lower solubility are obtained through re-crystallization; and ambrisentan is prepared through acid ionization. The yield of the method is approximately 30%. The adopted resolving agent is cheap and is easy to recover. The method is suitable for industrialized productions.

The invention discloses a method for enriching germanium from a wet process zinc smelting system. The method comprises the following process steps of: pre-neutralizing germanium extracting stock solution; weakly reducing; replacing reduced germanium; cleaning replacement residue; extracting germanium; opening a path and removing iron and the like. The method comprises the following specific steps of: firstly, pre-neutralizing pickle liquor (or liquid obtained from iron removal by jarosite process) with high germanium content by using a small amount of neutralizing agent and controlling the pH of a reaction final point to be between 1.0 and 4.5; secondly, adding a slightly excess amount of reducing agent such as zinc powder or scrap iron to replace germanium; and lastly, after reaction, separating excessive zinc powder or the scrap iron, separating solid from liquid to obtain copper germanium residue with high germanium grade and extracting germanium. Germanium replacement rate is high, and germanium residue has high grade and is easy to treat; moreover, the method is easy to operate, has easily-controllable process condition and low cost and is suitable for the requirement of industrial production.

The invention provides a polychlorotrifluoroethylene resin preparation method, belonging to the technical field of the preparation of fluoropolymer material. The method comprises the following steps:firstly purifying polytrifluorochloroethylene, then adopting deionized water as medium and using initiator to performing chlorotrifluoroethylene polymerization in the presence of surfactant and obtaining polychlorotrifluoroethylene resin. The invention has the advantage that the polymerization reaction time is shortened to less than 10h, the conversion rate of chlorotrifluoroethylene reach above 90%, the obtained polychlorotrifluoroethylene resin has good heat resistance and processability and degradation and metachromatism can not appear under the processing temperature of 240-280 DEG C. Therefore, the method can meet the demand of industrialized production.

The invention discloses a toxin-reducing cigarette additive, and a preparation method and use thereof. In the toxin-reducing cigarette additive, cores are made of an inorganic particulate matter such as silica gel and active carbon, shells are made of waste tobacco powder fibers, and granulation forming is performed under the action of an adhesive, and according to needs, an alkaline functional material can be added in the forming process for reducing HCN content in smoke. The preparation method of the cigarette tip particle additive is simple, the cost of the cigarette tip particle additive is low, and when the prepared additive is added into the tips, the HCN content in the smoke of cigarettes can be reduced effectively without influencing the smoke flavor of the cigarettes.

The invention belongs to the technical field of preparing 4-(4-amino phenyl)-3-morpholone, especially relates to a preparation method of 4-(4-amino phenyl)-3-morpholone and intermediate of the 4-(4-amino phenyl)-3-morpholone. The method comprises the following steps: amide intermediate cyclization, nitration, and reduction. The raw material aniline is a low-cost chemical, and the acylation raw material is easy to synthetize and low in cost. Compared with documents in which acylation is directly carried out after nitration, in the method disclosed by the invention, nitration is carried out after acylation, so that the method disclosed by the invention has the advantages no substituted group protection, high selectivity, less steps, high yield and the like. The preparation process does not need harsh reaction conditions such as high pressure, high temperature and deep cooling and also does not need an expensive palladium-carbon catalyst, and meets the requirements of industrial production.

The invention provides cellulose paper for reducing formonitrile content of cigarette smoke. Forming paper of the cellulose paper loaded with ionic liquid is applied to an acetate fiber filter tip to reduce the formonitrile content of the cigarette smoke obviously and selectively, and the mouthfeel of cigarettes is not influenced while the harm to smokers is reduced. The cellulose paper has the advantages of simple preparation technology, convenient addition and suitability for the requirement of industrial production.

The invention provides a polycrystalline silicon thin film which comprises a glass substrate, a barrier layer and a polycrystalline silicon layer with continuous crystal domain. The thickness of the polycrystalline silicon layer is 10 to 500 nanometers, crystal grains in the polycrystalline silicon layer are uniformly distributed, and the polycrystalline silicon layer is formed by etching an induction hole on a covering layer of an amorphous silicon thin film, enabling a metal induction thin film to contact the amorphous silicon thin film at the induction hole and carrying out annealing crystallization twice.

The invention relates to a preparation method of a rare-earth samarium modified ternary anode material, in particular to a method of a rare-earth samarium modified LiNixCoyMn[1-x-y]O2 (x=0.5, y=0.2 or 0.3) ternary anode material. The method is characterized by comprising the following steps of (1) preparing a ternary nickel, cobalt, manganese salt aqueous solution and a soluble alkaline or mixed alkaline solution; (2) adding the soluble alkaline or mixed alkaline solution into the ternary nickel, cobalt and manganese salt aqueous solution at a given flow rate, and heating and stirring a mixture; (3) filtering, washing and vacuum-drying the coprecipitate; (4) mixing the dried coprecipitate with samarium compound and lithium salt, grinding the mixture, placing the mixture in a sintering furnace, and carrying out high-temperature solid-phase reaction so as to obtain the rear-earth samarium modified LiNixCoyMn[1-x-y]O2 (x=0.5, y=0.2 or 0.3) ternary anode material. The primary charging-discharging efficiency of the ternary anode material which is prepared by doping the rare-earth samarium in a modifying manner exceeds 90 percent, the 0.2C discharging capacity can reach more than 159mAh / g, and the cycling performance is good.

The present invention discloses preparation process of high concentration polymerized aluminum sulfate flocculant. The preparation process includes two steps of preparing high concentration stable sodium metaaluminate solution and polymerization reaction. During the preparation of high concentration stable sodium metaaluminate solution, sodium gluconate is added into sodium hydroxide solution at 100-120 deg.c, aluminum hydroxide, stabilizer and initiator ammonium persulfate are also added. The polymerization reaction includes dissolving sodium carbonate in small amount of water, adding sodium silicate solution and sodium metaaluminate solution to obtain alkali intermediate product, high speed dispersing aluminum sulfate solution in a water bath and adding the alkali intermediate product slowly, mixing, stirring at 55-60 deg.c to mature and obtain high concentration polymerized aluminum sulfate flocculant. The flocculant has high stability, alumina content of 8.21-10.84 % and basicity of 65.90-72.93 %.

The invention belongs to the field of medicine chemical industry, and concretely relates to a preparation method for dapagliflozin. 2,3,4,6-tetra-O-acetyl-alpha-D-glucopyranosyl hydroxide is taken as a raw material and is subjected to a sulfonylation reaction, a nucleophilic substitution reaction and a acetyl removal reaction, so that dapagliflozin is obtained. The preparation method possesses the advantages of mild reaction conditions, simple and reasonable technological process, short reaction time, simple post-processing, high product quality, high yield and the like.

The present invention discloses one kind of molecular engram material for lowering nicotine content in cigarette fume and its application. Before synthesizing molecular engram material, nicotine is first mixed with functional monomer for mutual reaction to form molecular compound, then reacted with added cross-linking agent to form high cross-linked high molecular material, and finally eliminated chemically or physically from the high molecular material. In the polymer, great amount of holes possessing high selectivity on nicotine molecule are formed. The molecular engram material is preferably applied in composite filter tip to reduce nicotine content in cigarette fume and reach the selective harm reducing aim.

The invention relates to a method for preparing food-grade anhydrous disodium hydrogen phosphate. The method comprises the following steps of: (1) dissolving sodium hydroxide in deionized water with stirring and filtering for later use; (2) sequentially adding the deionized water, phosphoric acid and active carbon serving as a decoloring agent into a reactor, and then slowly adding the solution obtained by the step (1); when the pH value of the system is between 9 to 9.5, stopping adding materials, keeping the temperature of the system and continuing to stir for 40 to 60 minutes; (3) adding the reaction liquid into a concentration kettle, heating the reaction liquid with uniformly stirring until the reaction liquid is boiled, naturally cooling the reaction liquid with stirring until a crystal is completely separated out of the solution, and naturally drying the obtained clear crystal in the shade for later use; and (4) putting the crystal in an electrically heated drier for drying until moisture of the crystal is not separated out of the drier and packaging the crystal for sale. The optimal reaction proportion of various reactants including the phosphoric acid and the sodium hydroxide is determined through comparison research on the synthesis process of the food-grade anhydrous disodium hydrogen phosphate, so the method improves the reaction yield and is more suitable for industrial production.

The invention relates to the field of a lithium ion battery electrode material, and discloses metal element-doped lithium iron phosphate-coated lithium nickel-cobalt manganate and a preparation methodthereof. The preparation method comprises the steps of performing thermal treatment on the lithium nickel-cobalt manganate and a mixture of an M element-doped lithium iron phosphate precursor mixed liquid comprising a lithium source, a doped metal M source, an iron source and a phosphorus source; performing solid-liquid separation on a product obtained after thermal treatment, and drying to obtain a solid phase, wherein a solvent in the M element-doped lithium iron phosphate precursor mixed liquid comprising the lithium source, the doped metal M source, the iron source and the phosphorus source is used as an organic solvent. The organic solvent is used as a reaction liquid, the problem of serious water absorption of a lithium nickel-cobalt manganate ternary material, particularly a high-nickel ternary material is effectively solved, so that the metal element-doped lithium iron phosphate-coated lithium nickel-cobalt manganate having favorable electrochemical performance is prepared.

The invention relates to a preparation method for food grade disodium hydrogen phosphate, which comprises the following steps of: (1) dissolving sodium hydroxide in deionized water with stirring, and filtering for later use; (2) adding deionized water, phosphoric acid and a decolorizer into a reactor in turn, slowly adding the solution in the step (1), stopping adding the materials when the pH value of the system is between 3.5 and 4, keeping the system temperature, and continuing stirring for 40 to 60 minutes; and (3) standing the reaction liquid overnight, adding the reaction liquid into a concentrating kettle, heating the reaction liquid with uniform stirring until boiling, maintaining the boiling of the system, stopping heating until the volume of the reaction liquid is half of the original volume, naturally cooling with stirring until all crystals in the solution are precipitated, filtering and separating the crystals from crystallization mother liquor, naturally drying the obtained colorless crystals in the shade, and packing for sale. In the method, the best reaction proportion of various reactants of phosphoric acid and sodium hydroxide is determined by comparing and researching the synthesizing processes of the food grade disodium hydrogen phosphate, so that the reaction yield is improved, and the method is more suitable for industrial production.

The invention provides a technology for separating phycocyanin in spirulina by using polyvinyl ether alcohol amine through two aqueous phase extraction, belonging to the technical field of biochemical separation engineering. The technology comprises the following steps: preparing polyvinyl ether alcohol amine; carrying out two aqueous phase extraction on phycocyanin; and obtaining phycocyanin powder after concentrating and freeze-drying a phycocyanin aqueous solution, wherein the phycocyanin recovery rate can be 75-87%. The technology has the beneficial effects that the method is simple; the steps of a purification process are simplified by enriching and separating the spirulina broken wall liquid by directly using polyvinyl ether alcohol amine; the selectivity is high; the spectral purity of phycocyanin obtained through separation is A620 / A280 which is greater than 2.4; the powder of fresh or dry spirulina can be adopted as a raw material, thus providing a technical method with the effect of solving the problem of high value and large scale utilization of spirulina resources.