45results about How to "Easy to use raw materials" patented technology

Provided is a 4A-type molecular sieve synthesis method, comprising: utilizing natural clay mineral to provide all silicon sources and aluminum sources required for molecular sieve synthesis; and after activation, crystallizing the natural clay mineral under a hydrothermal condition to synthesize a 4A-type molecular sieve. The method of the present invention has a simple process and uses inexpensive raw material, and prepares a 4A-type molecular sieve with whiteness being greater than 90%, the calcium ion exchange capacity being not less than 310 mg CaCO3 / g molecular sieve. The present invention enlarges the range of raw materials for preparing molecular sieve material, and the sub-molten salt activation method greatly reduces the production cost of a molecular sieve, and significantly improves greenness of the production process of the molecular sieve material.

The invention belongs to the technical field of polymer materials and relates to a method for preparing a recyclable biological packaging material. The method forms the material by using starch, plant fibers and an additive as raw materials and by granulating in a double screw extruder and die pressing. The Packaging material comprises 50 to 70 mass parts of starch, 15 to 30 mass parts of plant fibers and 5 to 20 mass parts of additive. The preparation method comprises the following steps: (1) weighing the raw material, stirring the weighed raw material in a stirrer for 3 to 5 minutes, uniformly mixing and obtaining a mixture; (2) graduating the mixture in a double screw extruder, extruding from an extruding die, and obtaining a granular material or product mother batch, wherein the rotation speed of the screw is 100 to 120r / min, the extrusion temperature is 100 to 120 DEG C and the feeding speed is 100r / min; and (3) filling the extruded granular material in a flat plate vulcanizer, and die pressing the granular material to obtain the recyclable biological packaging material, wherein the die pressing time is 15 minutes, and the die pressing temperature is 120 to 140 DEG C. The overall process is simple, the used raw materials are readily available, the equipment technology is mature, the degrading performance of the recyclable biological packaging material is high, the utilization rate of the recyclable biological packaging material is high, and the recyclable biological packaging material is environment-friendly.

The invention relates to a technological method for preparing collagen polypeptide from raw material of collagen powder by value-raised deep-processing technology, wherein the collagen powder is obtained by extracting chondroitin sulfate from animal cartilage; in particular to a method for preparing highly purified animal cartilage collagen polypeptide in the filed of natural material extraction technology. The method includes the following steps: first, animal cartilage collagen powder is prepared into aqueous solution, after clarification, the aqueous solution is stirred in organic solvent, stood, and extracted to remove lipid components and peculiar smells; second, salt is eluted from lower solution by the sephadex column chromatography filtering method, the eluent is collected, and then heated to 40-55 DEG C, macerozyme is selected to cut pacemaker enzyme under the condition that the collagen powder is stirred, and the eluent is stirred, decolored, filtered, concentrated and dried to obtain the hydrolytic collagen polypeptide. The method has the advantages of simple technological process, easily obtained raw material, high production efficiency, high product quality, good taste, low cost and good chemical properties and is suitable for large-scale industrial production.

The invention relates to a preparation method of m-methyl benzoyl formyl chloride. The method comprises the following: (1), a step of chloric substitution reaction, namely adding methyl benzoic acid and thionyl chloride into a reaction kettle, heating to 70 to 85 DEG C with stirring, maintaining the temperature to react until no gas is exhausted, and stopping heating to finish the chloric substitution reaction; and (2), a step of distillation, namely distilling an oily liquid mixture obtained through the chloric substitution reaction to obtain the finished product of m-methyl benzoyl formyl chloride. Due to the adoption of the direct chloric substitution reaction in the preparation method of the m-methyl benzoyl formyl chloride, the reaction is easy. The method has the advantages that: the operation is convenient, simple and feasible; the realization of industrial production is convenient; and the production efficiency is improved.

The invention discloses a manufacturing method of granular sodium tert-pentoxide, which comprises the following steps: taking metal sodium, tert-amyl alcohol and inert organic solvent as raw materials, pouring the tert-amyl alcohol and the inert solvent into a reaction kettle, further pouring the metal sodium into the reaction kettle, carrying out reflux reaction for 8-40h under the protection of nitrogen, evaporating the tert-amyl alcohol under normal pressure, decompressing to minus 0.08-minus 0.098MPa after the tert-amyl alcohol is completely evaporated, evaporating the residual inert organic solvent, then regulating the stirring rate of the reaction kettle to 10-80 turns / minute, decompressing and evaporating the inert organic solvent, cooling a remaining granular sodium tert-pentoxide product in the kettle to below 40 DEG C, and finally obtaining the required granular sodium tert-pentoxide. The manufacturing method can carry out production by utilizing general chemical equipment, the operation conditions are mild, the production process is simple, the used raw materials are convenient and easy to obtain, the product quality is stable and reliable, and the shelf life of the product can be effectively prolonged.

The invention discloses a method of preparing granular sodium tert-butoxide, which includes the following steps: using metal sodium, tert-butanol and an inert organic solvent as raw materials; adding the tert-butanol and the inert solvent into a reaction kettle and then adding the metal sodium into the reaction kettle; under the protection of a nitrogen gas, refluxing for 8-40 h; at a normal temperature, distilling the tert-butnaol; after totally distilling the tert-butanol, reducing the pressure to -0.08 to -0.098 MPa to distil the remained insert organic solvent; then adjusting the stirringrate of the reaction kettle to 10-80 r / min; reducing the pressure to distil the inert organic solvent; obtaining a residual granular sodium tert-butoxide product in the reaction kettle; cooling the product to less than 40 DEG C to obtain the required granular sodium tert-butoxide. The method can perform a production by using universal chemical equipment. An operation condition is moderate; a protection technique is simple; and the raw materials used are easily obtained. The quality of the product is stable and reliable. The shelf life of the product can be effectively prolonged.

The invention belongs to the technical field of advanced nanocomposite materials, and in particular relates to a mesoporous / macroporous composite carbon material with a multi-level ordered structure and a preparation method thereof. In the present invention, the colloidal crystal of silica mold is used as the hard template, the block copolymer surfactant of the polyoxyethylene segment is used as the soft template, and the phenolic resol resin is used as the carbon source. Synthesis of mesoporous / macroporous composite carbon materials with hierarchical channels. The material not only has interconnected ordered macropores but also short-range ordered mesoporous walls. In addition, this type of material has an optical band gap produced by a colloidal crystal structure, and the band gap wavelength is continuously adjustable. The material has broad application prospects in optical waveguides, sensors, and catalyst carriers. The method of the invention is simple, the raw material is easy to obtain, and is suitable for scale-up production.

The present invention provides a super-hydrophobic cigarette end, and belongs to the field of functional materials. According to the present invention, waste cigarette end is treated and dried through a hydrophobic reagent to obtain the super-hydrophobic cigarette end, wherein the contact angle of the cigarette end on water achieves 156 DEG, the roll angle is less than 3 DEG, and the contact angle on oil is 0 DEG; the super-hydrophobic cigarette end can be applied for oil water emulsion separation and can be used for successfully separating a variety of oil water emulsions, wherein the separation efficiency is up to more than or equal to 98%, and the material can be recycled through simple cleaning after use; and the preparation process is simple, the operability is strong, the large-scale application is easily achieved in the oil overflow pollution field, and the effect of waste utilization can be achieved.

The invention relates to a Chinese herbal composition and an application thereof in treating eczema. The Chinese herbal composition is prepared by mixing 20-35 parts by weight of herba saxifragae stoloniferae, 2-5 parts by weight of herba sedi, 3-5 parts by weight of herba centellae, 2-10 parts by weight of radix arnebiae seu lithospermi and 45-73 parts by weight of camellia oil. A preparation method comprises the following steps: drying and grinding the herba saxifragae stoloniferae, the herba sedi, the herba centellae and the radix arnebiae seu lithospermi into fine powder, uniformly mixing the fine powder with the camellia oil so as to obtain a paste, covering the paste and keeping the paste in the shade for 7-15 days, so that the paste is ready for use. The Chinese herbal composition is additionally added with 10-15 parts by weight of excipient, and the Chinese herbal composition and the excipient are fully stirred, so that an ointment or an emulsion is prepared. The ointment provided by the invention, when used for treating the eczema, is smeared to affected parts; and in accordance with exposure therapy, the ointment is smeared once every other 4-6h. The Chinese herbal composition provided by the invention is appropriate in compatibility, easily available in raw materials, low in cost, simple in preparation method, simple and convenient to use, rapid and thorough in itching relieving and strong in infection resistance, and the ointment can be used for treating various eczema.

A Chinese medicine in the form of ointment for treating burn and scald without pain and scar is prepared from 17 Chinese-medicinal materials including rhubarb, phelodendron bark, tangerine peel, liquorice root, etc. Its preparing process is also disclosed.

The invention provides a preparation method of 2,2'-dyhydroxyl-4,4'-dimethoxybenzophenone. The preparation method comprises the following steps: (1) adding resorcinol and a sodium hydroxide aqueous solution to a reaction tank to dissolve to obtain a mixed solution; (2) heating the mixed solution obtained in step (1), adding dimethyl sulfate, and simultaneously dropping the sodium hydroxide aqueous solution; (3) separating the solution completely subjected to thermal reaction in step (2), and distilling the separated organic phase through a rectifying column to obtain dimethoxy bengene; (4) adding an organic solvent, a composite catalyst and dimethoxy bengene to the reaction tank; (5) hydrating the solution completely reacted in step (4), separating the organic phase, and then performing distilling, acidizing out and filtering to obtain crude 2,2'-dyhydroxyl-4,4'-dimethoxybenzophenone; (6) transferring the crude 2,2'-dyhydroxyl-4,4'-dimethoxybenzophenone into the organic solvent, and performing crystallizing, filtering and drying to obtain 2,2'-dyhydroxyl-4,4'-dimethoxybenzophenone. By adopting the preparation method, the shortcomings in the prior art can be overcome.

The invention discloses a manufacturing method of granular potassium tert-pentylate, comprising the following steps: taking potassium metal, tert-amyl alcohol and inert organic solvent as raw materials; adding tert-amyl alcohol and inert organic solvent into a kettle; then, adding potassium metal into the kettle; after reflowing for 8-40 hours under the protection of nitrogen, evaporating tert-amyl alcohol at normal pressure; after tert-amyl alcohol is completely evaporated, decompressing to -0.08--0.098 MPa, and evaporating residual organic solvent; then, regulating the stirring rate of the kettle to 10-80 turns / min; decompressing to evaporate inert organic solvent, and leaving granular potassium tert-pentylate products in the kettle; and cooling to be below 40 DEG C to obtain the granular potassium tert-pentylate. The invention can carry out production by using general chemical equipment, has moderate operation condition, simple production technology, convenient and abundant raw material, and stable and reliable product quality and can effectively prolong the quality guarantee period of the product.

A method for synthesizing a key intermediate compound 1 of a novel potassium ion competitive blocker fexuprazan belongs to the field of pharmaceutical intermediate synthesis. The purpose of the present invention is to solve the problems of high preparation cost and low yield of compound 1, further increase the production capacity, and reduce the production cost. The method of the invention takes 2,4-difluorobenzylamine as a raw material, and sequentially undergoes condensation reaction, benzyl protection, cyclization under basic conditions, methylation, deprotection, etc. to obtain the target product. The method for synthesizing compound 1 of the present invention adopts a novel process route, the yield is greater than 50%, and has the characteristics of novel route, mild reaction conditions, low cost and the like.

The invention discloses a synthesis method of a class of 9,9'-spirobifluorene derivatives, which belongs to the field of organic chemical synthesis. Realized by the following method: under the protection of inert gas, use o-bromohalobenzene as raw material in methyl tetrahydrofuran solvent, react with phenylmagnesium bromide at 50-100°C, react with bromofluorenone, and then undergo hydrolysis, Filtration, the solid is closed under acid catalysis to synthesize bromo-9,9'-spirobifluorene; then bromo-9,9'-spirobifluorene reacts with diphenylphosphine lithium to synthesize 9,9'-spirobifluorene Phenylphosphine derivatives. The synthesis method of the invention has simple process, low price and easy availability of raw materials, significantly reduces the production cost of series products in the synthesis process, and expands the application of fluorene derivatives as intermediates in the design and synthesis of organic photoelectric materials.