310results about How to "Low market price" patented technology

The present invention provides the Nd-Fe-B gadolinium-containing rare earth permanent magnet materials and manufacturing methods. Nd-Fe-B described in the gadolinium-containing rare earth permanent magnet material for the composition: Re alpha Gd beta B gamma MxNyFe100 - alpha-beta - gamma - xy, including: Re for REE, including from Nd, Pr, Dy, Tb and in at least one Ce elemental or more elements; M to add elements, including Co and Cu; N to add elements, including from Al, Ga, Nb, Zr, Ti and Sn one or more elements; alpha, beta, gamma , x, y percentage of weight for each element content; Fe Fe and unavoidable impurities of which, 29 =< alpha =< 35,0.05 =< beta =< 0.50,0.95 =< gamma =< 1.20,0 =< x =< 10,0 =< y =< 1.50. Manufacturing methods described by melting, casting, grinding, molding and sintering of a continuous process manufacturing sintered magnets. The Nd-Fe-B Gd rare earth permanent magnet material added after its Hcj has improved, and to improve its temperature .

The invention discloses a processing method for comprehensively recovering high manganese asbolite, belonging to the field of hydrometallurgy. In the processing method, the high manganese asbolite is processed through four processing steps comprising (1) reduction leaching, (2) primary cleaning, (3) manganese and cobalt separation and (4) extraction separation to obtain a product manganese carbonate, copper sulfate, nickel carbonate or cobaltous sulfate. The processing method has the advantages that the source of raw materials is wide, the process and equipment are simple, the operation is stable, the energy consumption is low, the production cost is low, the practicability is wide, and the economic effect and the society effect are obvious.

The invention discloses a preparation method of metformin hydrochloride. The method comprises: taking 40% dimethylamine as a starting material, which is subjected to a salification reaction with hydrochloric acid salt forming reaction of dimethylamine hydrochloride, subjecting the dimethylamine hydrochloride and dicyandiamide to an addition reaction in solvent N, N-dimethylformamide so as to generate a metformin hydrochloride crude product, then conducting refining, thus obtaining metformin hydrochloride. The solvent of the invention has viscosity insusceptible to temperature, and is easy to be separated from the product. Besides, the solvent can dissolve the reactant dicyandiamide, and even if dicyandiamide is not fully reacted, it cannot be separated out during separation of the product and the solvent, so that the production operation can be easier, and the purity of the final product can be very high. The method of the invention has the advantages of simple and easy production operation, high raw materialutilization rate, and cheap as well as easily available solvent, the market price of which is 2-3 times lower than prices of solvents in prior, and the synthesis cost is reduced by about 30%, so that the preparation method of the invention is very suitable for industrial production of metformin hydrochloride.

The invention discloses a novel neodymium iron boron magnetic material, which is characterized in that the general molecular formula of the neodymium iron boron magnetic material is RExNd(0.27-x)Fe0.72B0.01, wherein the RE is selected from at least one of lanthanide/actinium metals except neodymium, and x is the weight ratio of the RE and is about 0.027-0.108. For the novel neodymium iron boron magnetic material preferably selected in the invention, rare earth element cerium (Ce) replaces the partial neodymium (Nd), good magnetism and corrosion resistance can be still kept basically, and has remarkable cost and price advantages are realized.

The invention discloses a method for preparing an enhanced heat-transfer and scale prevention coating of micron/nanometer titanium dioxide on a stainless steel substrate, comprising the following steps of: (a) pre-treating the stainless steel substrate; (b) preparing ammonium fluorotitanate and boric acid into uniform solutions, and mixing the two solutions uniformly; (c) placing the prepared mixed solution in a water bath and controlling the temperature thereof at 20-80 DEG C, suspending the stainless steel substrate perpendicularly in the mixed solution and starting to deposit to prepare the substrate coated with TiO2 thin film after the temperature of the mixed solution is stable; (d) after deposition, picking the substrate out and washing the surface of the substrate with distilled water; and (e) drying the substrate naturally, then placing the substrate in a resistance furnace to heat to obtain the micron/nanometer TiO2 surface coating. The coating prepared by adopting the method is compact and uniform in appearance and the Ra value of the sintered surface coating is substantially equal to that of the polished surface coating. The coating is high-temperature resistant and is combined with the substrate more firmly.

The invention discloses a cultivation method for good-quality flower mushrooms. Cultivation is completed in the mode of compounding, bagging, sterilizing, cooling, inoculating, cultivating, mushroom producing managing and harvesting. Ingredients include 78 percent of hard and mixed wood bit, 20 percent of wheat bran or rice bran, 1 percent of gypsum powder and 1 percent of white sugar; or ingredients include 42 percent of hard and mixed wood bit, 42 percent of corncob powder, 15 percent of wheat bran or rice bran and 1 percent of gypsum powder. According to the cultivation method, low-temperature and late-maturing mushroom breeds are inoculated and generate mushrooms, a mushroom stick is arranged on a cultivation frame to produce mushrooms, the low-temperature and dry weather conditions in spring and autumn are used for growth of the good-quality flower mushrooms, and the rate of the flower mushrooms can reach 60 percent or higher.

A bidirectionally stretched polypropene film substrate with high aluminum-plating effect, transfer effect and laser effect is composed of upper surface layer, core layer and lower surface layer, which are combined through heat fusing and co-extruding. It is prepared from cheap homopolypropene. Its preparing process is also disclosed.

A method of and a system for controlling the culture growth of high value feed organisms in a co-fermented system that produces ethanol and for the culture to consume both nonprotein and carbohydrate based products. The method and system produce products that enhance the nutritional value of the co-products. The method further provides a system to grow unique value added co-products, including a mycotoxin-free animal feed, for the monogastric and ruminant animal feed markets including aquaculture, poultry, swine, companion animals and livestock animals. The method includes the production of organic acids to enrich animal feed for enhanced animal performance with reduced antibiotic components in the feed. The method includes the production and incorporation of probiotics in the animal feed product.

Belonging to the field of fine chemical industry, the invention in particular relates to a method for preparation of m-aminobenzenesulfonic acid by catalytic hydrogenation. The method includes: taking sodium m-nitrobenzene sulfonate as the raw material, adding water for dissolving, boiling the mixture by activated carbon, conducting hot filtration, adjusting the pH value of the filtrate to 7.5-8.5 by a sodium hydroxide aqueous solution, employing Pt-Ru/C as a catalyst to perform hydrogenation reduction for preparation of m-aminobenzenesulfonic acid, ending the hydrogenation reduction reaction when the hydrogen pressure no longer changes, filtering out the Pt-Ru/C catalyst at the end of the reaction, firstly washing the catalyst by ethanol, then carrying out washing recycling, with the recycled catalyst being able to be applied over 50 times and still having a conversion rate and selectivity up to 99%; and subjecting the obtained filtrate to acid precipitation to pH of 2, thus obtaining a white crystal, i.e. the target product m-aminobenzenesulfonic acid. The method provided by the invention lowers the catalyst cost, improves the utilization rate of equipment, and also overcomes the problems of pollution and energy consumption in the regeneration process of the catalyst.

The invention discloses a preparation method of ribavirin, comprising the following steps: A, by taking inosine as a raw material, adding acid and a catalyst I for acylation reaction to generate ribofuranose tetraacetate; B, respectively treating the ribofuranose tetraacetate obtained in the step A and 1,2,4-triazole-3-carboxylic acid methyl ester by using active carbon firstly, then uniformly mixing the ribofuranose tetraacetate and the 1,2,4-triazole-3-carboxylic acid methyl ester, and then adding a catalyst II for condensation reaction to obtain a condensation compound; C, subjecting the condensation compound obtained in the step B to ammonolysis in ammonia and methyl alcohol to generate crude ribavirin; and D, carrying out refinement on the crude ribavirin obtained in the step C to obtain pure ribavirin. The method is simple in operation, good in selectivity, clean and environment friendly and high in yield of ribavirin.

The invention provides a formula and a preparation method of a cationic polymer. The raw material formula of the cationic polymer comprises the following components in part by weight: water 5-50, acetone 3-25, amine 5-30, aldehyde 5-40, alkaline regulator 3-12 and acidic regulator 5-20. In the method, a water soluble cationic polymer is prepared from aldehyde, acetone and amine by a nucleophilic addition reaction, an aldol condensation reaction and a Michael addition reaction in the presence of acid and alkali catalysts in turn and by a two-step feeding process. The method has the advantages that: the raw material cost is low, the synthesis process is simple and easy to implement; the preparation conditions are mild and safe; and the obtained product has high cation content and has high decolorizing and flocculating effects on anionic dye waste water.

The invention relates to the technical field of asexual reproduction of plants, in particular to a method for quickly breeding large-size cherry blossom seedlings. The method comprises the processes of time selection of grafting, selection and preparation of scions, grafting method and management after grafting, wherein the grafting method comprises the following steps of: selecting vigorous living cherry trees which have the ground diameters of 10 to 20 centimeters, have the heights of 2 to 2.5 meters and are not damaged by diseases and insects as stocks; treating the branches to be grafted in the cherry trees, cutting out smooth cross sections, and longitudinally cutting from the 1/4 to 1/3 of the sections and from top to bottom, wherein the cuts are flat and smooth, and the lengths of the cuts are 2 to 3 centimeters; inserting the cut scions into the cuts to ensure that the cambium of the long inclined plane of each scion is aligned with and tightly attached to the cambium of each stock, and fastening with a plastic film strip from bottom to top; and covering a plastic bag on each scion, and pricking 5 to 6 holes in different parts of each plastic bag by using a fine nail, wherein 2 to 3 scions are grafted to the side branch of each stock.

The invention provides a piezoelectric asphalt concrete, which is composed of the following raw materials in parts by weight: 83 to 90 parts of aggregate, 4 to 6 parts of mineral powder, 2 to 4 parts of piezoelectric material, 1 to 2 parts of conductive material, and 3 to 5 parts of asphalt, wherein the total raw material part number is 100. The invention also provides two power generation pavement structures based on the piezoelectric asphalt concrete. The two power generation pavement structures utilize cooperation between the piezoelectric asphalt concrete and rod-shaped electrode or metal net electrode to achieve the electric energy collection. The piezoelectric asphalt concrete has a good economic property, and is suitable for being widely promoted and applied.

The invention belongs to the anti-counterfeiting technology field and discloses a random color dot matrix label anti-counterfeiting system. The system comprises anti-counterfeiting code dot matrix images and a composite image, wherein software generates the anti-counterfeiting code dot matrix images with a variable quantity, size and position, and multiple random colors around a two-dimensional code; and the software guarantees the reliability of code scanning, and simultaneously, the two-dimensional code is divided into four color areas, the colors of the four color areas are changed randomly, the anti-counterfeiting code dot matrix images and an original anti-counterfeiting base plate are synthesized so as to generate an image format used for a printing machine and send to the printing machine for printing, an independent label can be printed or the image can be directly printed to a product package, and simultaneously, the complete image is stored in a system database for backup sothat query and comparison can be performed. A simple and operable mode with low cost is adopted, and the counterfeiting cost of a counterfeiting enterprise is increased so as to protect the brand andthe fame of an enterprise. The products of the enterprise are reliable and competitive in a marketplace.

The invention relates to a mortierella alpine CCFM442 strain and use thereof. The mortierella alpine CCFM442 strain is used for producing thalli feed additive, the method for producing the thalli feed additive comprises the steps of slant cultivation, seed cultivation, fermentation cultivation and post treatment. The thallis feed additive is high in security. The fatty acid in the thallis feed additive is reasonable in compositions, the content of the polyunsaturated fatty acid in the total fatty acid achieves 42.4-45.8%, omega-6/omega-3 ratio is 4.5-5.3, and meets the recommendation standard of WHO and FAO. Cheap glucose and bean pulp which are low in market price and easy to obtain, are adopted asa culture medium for producing the thallis feed additive, so that the production cost is low.

The invention discloses a slow release medicament three-layer tablet which comprises Amoxicillin hydrate, clavulanate potassium and pharmaceutically acceptable excipient or carrier, the layer 1 is a rapid release layer comprising Amoxicillin hydrate and clavulanate potassium, the layer 2 is a rapid release layer comprising a portion of Amoxicillin hydrate, the layer 3 is a rapid release layer comprising rest portions of Amoxicillin hydrate, the slow release layer contains not only common medicinal adjuvant, but also slow release material of hydroxy propyl methyl cellulose E30.

The invention relates to a powder pigment, in particular to a pyrophyllite-based composite titanium white powder and a preparation method thereof. The invention provides the following technical scheme that: the pyrophyllite-based composite titanium white powder comprises pyrophyllite and rutile-type titanium white powder which have the mass ratio of 50-90:50-10, and the blue-white luminosity of the pyrophyllite is 75-84. By adopting the technical scheme, the invention provides the pyrophyllite-based composite titanium white powder which has low cost and simple technique, and the preparation method thereof.

The invention discloses a novel environment-friendly and nutritional efficient clarias fuscus feed and aims to provide the novel environment-friendly and nutritional efficient type clarias fuscus feed which can effectively improve the feed utilization rate of clarias fuscus, reduce the disease damages to the clarias fuscus, improve the water quality and increase the benefits. The technical scheme is that the feed is formed by the following components in mass percentage: 20-25% of flour, 6-16% of rapeseed meal, 2-6% of meat meal, 10-25% of fish meal, 4-8% of peanut meal, 5% of corn protein powder, 22-30% of bean pulp, 1-2% of cuttlefish cream, 5% of DDGS (Distillers Dried Grains with Soluble) feed, 1-2% of fish oil, 2-4% of soybean lecithin oil, 1-2.0% of monocalcium phosphate, 0.2-0.5% of compound vitamin, 1-2% of compound mineral, 0.03-0.05% of mould-proof agent, 0.1% of choline chloride and 0.2-0.4% of phytase; and the sum of all the components is 100%. The novel environment-friendly and nutritional efficient clarias fuscus feed belongs to the technical field of fish feed.