42results about How to "No equipment required" patented technology

The invention relates to an ambient-pressure drying preparation method for mineral nanofiber aerogel. Nonmetallic mineral raw materials are purified and scattered, so that mineral nanofibers are acquired; the mineral nanofibers are scattered in a proper amount of water, a foaming agent, a bonder and the like are added, a mixture is fully and evenly stirred, and even colloidal sol containing a certain number of the nanofibers is acquired; the colloidal sol is converted into stable foam through physical foaming or chemical foaming or physical-chemical foaming; the foam is poured into a mold, ambient-pressure drying or ambient-pressure maintenance-drying is conducted, and therefore the mineral nanofiber aerogel is acquired. The prepared mineral nanofiber aerogel is simple in process, short in production period, high in controllability, low in equipment requirement and easy to industrially produce on a large scale. The prepared mineral nanofiber aerogel has the advantages of being controllable in shape, low in density and heat conductivity, good in mechanical property and the like.

The invention discloses a method for preparing high-purity vanadium pentoxide through sodium polyvanadate. The method includes the following steps that a, a sodium removal agent aqueous solution is prepared, wherein a sodium removal agent is at least one of ammonium carbonate, ammonium bicarbonate and ammonium oxalate; b, the finely grinded sodium polyvanadate is added to the sodium removal agent aqueous solution, filtering, washing and drying are carried out after the stirring reaction, and sodium-free sodium polyvanadate is obtained; c, the high-purity vanadium pentoxide is obtained after the sodium-free sodium polyvanadate is calcinated. The process of removing sodium through one step is adopted, the removal rate of sodion in the sodium polyvanadate reaches about 99%, sodion content of vanadium pentoxide obtained through later preparation is very low, yield of vanadium also reaches more than 99%, and the problem that prepared vanadium pentoxide is not high in purity due to the fact that the sodium content in sodium polyvanadate obtained after hydrolysis of vanadium precipitation exceeds the standard is solved.

The invention discloses a preparation method of an S-(-)-Nadifloxacin. 3, 4-difluoro-acetbromanilide is taken as initial material to be synthesized by quinoline, and hydrogenated to directly split out an optical active midbody, then is formed into a ring by oxymethylene, protected by carboxyl, condensed by 4-hydroxy piperidine and finally deprotected and hydrolyzed; the S-(-)-Nadifloxacin is used for reacting with the alkali allowed in medicine to prepare S-(-)-Nadifloxacin water-soluble salt; compared with the prior arts of synthesizing and splitting the Nadifloxacin, the materials of the invention are cheap and easily obtained; the reaction is mild; the yield of the splitting technique is stable; the optical purity is high; a splitting agent can be circularly used; the preparation method of the invention is suitable for industrialization production; the S-(-)-Nadifloxacin water-soluble salt is used in clinic; the antibiotic activity is greatly improved; the toxic and side effects are reduced; and simultaneously the increasing of the water-solubility even enlarges the application of the medicament forms.

The invention relates to a slow release type chlorine dioxide solid disinfectant and a preparation method thereof. The slow release type chlorine dioxide solid disinfectant is composed of a component A, a component B and a double-layer slow release device. The component A comprises chlorine dioxide parent, a reducing agent, a filling agent, a stabilizer and a slow release carrier. The component B comprises acid solution. The component A is placed in the double-layer slow release device, and the component B is independently packaged. The preparation method is simple, and the slow release type chlorine dioxide solid disinfectant is suitable for industrial large-scale production, convenient to use, easy to store and long in guarantee period and has good application prospects in the fields such as home furnishing, environmental protection and health defence. The slow release type chlorine dioxide solid disinfectant can be used for deodorization and disinfection of a refrigerator, a toilet, a shoe cabinet, a storage room and the inside of a vehicle and the like.

The invention relates to a biological fermentation preparation method for flavored pigskin. The biological fermentation preparation method comprises the following steps: sterilizing a byproduct, namely pigskin of the pork industry, then performing micro-point roughening treatment of mixed protease on the surface of the pigskin, adding a carbon source and a nitrogen source required by fermentation,inoculating mucor racemosus XH-22, bacillus subtilis and aspergillus oryzae, and performing mixed solid-state fermentation, after surface hyphae are removed, inoculating yeast, the mucor racemosus XH-22 and the aspergillus oryzae, carrying out compensation fermentation on the pigskin, and subjecting a fermentation product to flavoring, drying and dehydration so as to obtain a product, namely fermented flavored pigskin. The flavored fermented pigskin produced by using the method provided by the invention has the following advantages: the production process is environmentally-friendly, simple,convenient, economical and practical; the difficulties of a conventional method in industrial production is overcome; meanwhile, the deficiencies of a conventional product in the aspects of nutritionand flavor can be made up; excellent flavor is guaranteed; and high-quality collagen is taken as a source of healthy energy at the same time.

The invention provides a method for enabling a virtual machine based on a router to be in communication with a host machine network. The method comprises steps of (S1) establishing a corresponding first router for the first virtual machine and connecting the first virtual machine to a host machine network in a communication manner through the first router. The invention can simply and effectively realize network communication between the virtual machine and the host machine.

The invention belongs to the technical field of building construction, and discloses an integrated pouring based house building construction process. The process comprises the following steps of S1, building a building house pile foundation in a construction base according to a construction drawing; and S2, after lap joint of the pile foundation is completed, cleaning topsoil in the site and mud left during pile foundation construction, carrying out leveling through an excavator, and performing compaction through a road roller. The process has the beneficial effects that an arranged formwork is stable in structure and is not prone to moving, and the overall quality of pouring is better; an upper construction joint between a wall body and a roof is omitted, the construction period is shortened, and the construction cost is reduced; the construction method is simple and convenient, has no special material and equipment requirements, and greatly reduces the construction cost; and the integrality of a cast-in-place structure is improved, a wallboard is seamless, and the appearance of the wall body is more attractive.

The invention discloses a skin disinfectant and a preparation method thereof. The skin disinfectant comprises, by mass, 5-10 parts of Indian strawberry, 5-10 parts of pine needle, 2-5 parts of safflower, 10-30 parts of dandelion, 5-15 parts of herba asari, 10-30 parts of isatis root, 10-20 parts of radix bupleuri, 10-20 parts of christina loosestrife herb, 5-10 parts of myrrh, 5-15 parts of common andrographis herb and 40-60 parts of glycerol. The preparation method has the following steps of a, weighing medicinal raw materials, b, carrying out decoction and c, adding glycerol into the decoction. The skin disinfectant improves germ and virus resistance and immunity and has a high sterilizing rate and long bacterial inhibition time.

The invention provides polyurethane high-resilience foam and a preparation method thereof. The polyurethane high-resilience foam is prepared from the following raw material components in parts by weight: 68 to 75 parts of isocyanate, 90 to 100 parts of polyhydric alcohol, 1 to 2 parts of a foam stabilizer, 0.2 to 1.2 parts of a cross-linking agent, 2.5 to 4 parts of water, 0.28 to 1.58 parts of acatalyst, 18 to 24 parts of calcium carbonate and 0.5 to 3 parts of an anionic surfactant. Through mutual cooperation of the components, the polyurethane high-resilience foam with high tear resistance, high bearing performance and high calcium carbonate filling amount is finally obtained, and cheap calcium carbonate is used as a filler, so that the cost is saved under the condition that the tear resistance and the bearing performance of the product are improved, and large-scale production and promotion are facilitated.

The invention discloses an unsaturated resin or vinyl resin composition and application thereof to a composite material, and belongs to the field of resin synthesis and composite material preparation.The preparation method comprises the following five steps: (1) respectively adding a certain parts by weight of saturated polyhydric alcohol and unsaturated polyhydric alcohol into a flask, and maintaining a certain temperature as required; (2) adding an unsaturated end-capping reagent, and carrying out a reaction for 0-4 h at an environment temperature of -140 DEG C to obtain an oligomer containing double bonds at the tail end of a molecular chain; (3) adding a certain parts by weight of auxiliaries such as a diluent, an initiator, a catalyst and a release agent according to the requirementsof an application process, uniformly stirring the materials, and putting the mixture into a glue tank of production equipment for later use; (4) preparing a resin/fiber composite material by adoptingequipment matched with the process according to a predetermined process; (5) demoulding the finish product. The prepared resin sizing material has the advantages of being wide in application process,long in operable time, good in mechanical property, high in flexibility of the prepared composite material and the like.

The invention relates to an edible fungus strain purification and rejuvenation technology, which comprises the following steps of 1, taking a degraded edible fungus strain to be subjected to purification and rejuvenation into a first culture medium; when the diameter of the bacterial colony reaches 2 to 3cm, cutting tip ends; transferring and putting the tip ends into a second culture medium; whenthe diameter of the bacterial colony reaches 2 to 3cm again, cutting the tip ends; transferring and putting the tip ends into a third culture medium; when the diameter of the bacterial colony reaches2 to 3cm again, cutting the tip ends; transferring and putting the tip ends into a fourth culture medium; 2, when the diameter of the strain bacterial colony transferred in the last time reaches 2 to3cm, transferring the strain into a shake bottle culture solution; adding penicillin into the shake bottle culture solution; culturing the strain onto the surface of the shake bottle culture solutionuntil mycelia fully grow on the surface of the liquid; 3, transferring the strain into a basic wood chip culture medium to culture until the mycelia grow out, wherein the basic wood chip culture medium contains quicklime with the mass percentage being 3 to 5 percent. The yield and the quality of the strain can be well improved; the living power of the degraded strain can be improved.

The invention provides a long-acting brexpiprazole in-situ phase change gel injection and a preparation method thereof. Phospholipid is used as a matrix to dissolve a poorly water-soluble drug namelybrexpiprazole in NMP to prepare an injectable sustained release preparation, the in-situ phase change gel injection has excellent physical and chemical stability, and the drug release time can be maintained for 2 months. In addition, the preparation process is simple, low in equipment requirement and suitable for industrial production.

The invention discloses a shower nozzle rust removal and hole opening agent which is prepared from vinegar, white spirits, edible oil, washing powder and baking soda. The rust removal and hole opening agent is simple in raw material and can be prepared from domestic frequently-used seasonings and daily chemical products. The rust removal and hole opening agent is simple in preparation method and does not need complex devices or severe reaction conditions. The rust removal and hole opening agent is high in rust removal and hole opening capacity and can open holes within 5 min after being sprayed.