15results about How to "High value utilization" patented technology

The invention relates to a method for preparing spinnable mesophase pitch and carbon fibers from coal tar fractions, and belongs to the technical field of carbon materials. The method comprises the following steps: distilling and extracting aromatic hydrocarbon fractions in different distillation ranges from coal tar, activating the aromatic hydrocarbon fractions in one or more distillation ranges as raw materials, and carrying out non-catalytic polymerization reaction on one or more activated coal tar fractions and one or more non-activated coal tar fractions at a low temperature, and performing high-temperature polymerization reaction to obtain matrix asphalt, and performing reduced pressure distillation treatment, solvent extraction or inert gas purging to obtain the spinnable mesophase asphalt. The spinnable mesophase pitch has wide-area streamline optical texture distribution, good directional arrangement and orderliness, the mesophase content can reach 100%, the softening point is low, the coking value is high, the ash content is low, and the structure is controllable. The carbon fiber prepared based on the mesophase pitch is short in required oxidation time and has excellent performance.

This invention discloses an optimized extraction and purification process for total flavonoids from Hypericum perforatum and its application in photodamage protection. Belonging to the field of natural product extraction technology, the process includes the following steps: using Hypericum perforatum powder as raw material, ultrasonic-assisted extraction is performed, followed by centrifugation, collection of the supernatant, and repeated extraction of the residue twice. The supernatants are combined to obtain a total flavonoid extract from Hypericum perforatum. The extract is then purified by adsorption using a macroporous adsorption resin, and the eluent is collected, concentrated, and dried to obtain high-purity total flavonoids from Hypericum perforatum. This invention features a stable process, high extraction efficiency, and is environmentally friendly, making it suitable for industrial production. The prepared total flavonoids from Hypericum perforatum exhibit high purity and significant antioxidant and photoprotective effects, and can be widely used in antioxidant, skin protection, and sunscreen products.

This invention belongs to the field of reconstituted tobacco technology, and provides a reconstituted tobacco based on a functional compound of Phyllanthus emblica and its preparation method. The reconstituted tobacco includes a porous composite substrate and a coating liquid. The Phyllanthus emblica functional compound includes Phyllanthus emblica pomace pulp and Phyllanthus emblica extract. The porous composite substrate is prepared by mixing and molding Phyllanthus emblica pomace pulp and tobacco pulp, wherein the Phyllanthus emblica pomace in the pulp has a porous and loose structure. The coating liquid is prepared by mixing Phyllanthus emblica extract and tobacco concentrate. The reconstituted tobacco prepared by the method of this invention can enhance the fruity sweetness and aroma of the reconstituted tobacco, improve its aroma quality, reduce its irritation, reduce its woody smell, and effectively improve the comfort of the reconstituted tobacco.

The invention discloses an intumescent fireproof coating based on sewage treatment solid waste and a preparation method thereof, and relates to the technical field of fireproof coatings, the intumescent fireproof coating comprises the following raw materials by weight: 3-15 parts of struvite, 30-50 parts of a film-forming emulsion, 7-15 parts of a pigment filler, 23-28 parts of an intumescent flame retardant, 7-8 parts of a plasticizer, 1-1.5 parts of an auxiliary agent, and 5-15 parts of water; according to the invention, high-value utilization of struvite is realized, and by adding struvite, the fireproof performance of the coating can be improved, the bonding strength of the coating can also be improved, and a crack-free coating is formed.

This invention belongs to the field of lithium battery electrolyte technology, specifically relating to a method for directly synthesizing thionyl chloride from LiFSI byproducts. The method involves mixing sulfur, a passivating agent, a catalyst, and a dehydrating agent, pretreating the mixture at high temperature, and then introducing a byproduct gas containing sulfur dioxide and hydrogen chloride, along with oxygen. A one-step synthesis reaction occurs at high temperature. After the reaction, the solid is filtered off to obtain thionyl chloride. This invention directly utilizes the LiFSI byproduct mixed gas without further treatment, converting it into the core raw material SOCl2, which can then be recycled for LiFSI production, achieving high-value utilization of the byproducts. The reaction in this invention is a one-step synthesis in a single reactor, eliminating the need for a high-temperature oxidation reactor and Cl2 storage and transportation system. This significantly simplifies the process, makes operation convenient, and reduces costs considerably. The reaction temperature does not exceed 130°C, making it easy to control and resulting in low energy consumption.

The invention discloses a preparation method of glycosylated bamboo shoot peptide chelated calcium. Combining the bamboo shoot cleaning solution with the filtrate, carrying out alkali dissolution and acid precipitation, collecting precipitates, dispersing the precipitates in ultrapure water, and carrying out spray drying to obtain bamboo shoot protein powder; taking the bamboo shoot protein, adding alkaline protease, carrying out enzymolysis reaction, and carrying out ultrafiltration and freeze drying; the preparation method comprises the following steps: mixing BSH with six different saccharides, and dissolving in deionized water to prepare a solution; preparing BSH with similar grafting degrees and same time; cooling, filtering, and freeze-drying trapped fluid to obtain a BSH sample; mixing the glycosylated BSH solution with calcium chloride, and adding absolute ethyl alcohol to obtain glycosylated BSH-Capowder; the calcium binding capacity of the bamboo shoot peptide is effectively improved, an experimental basis is provided for development of BSH-Ca and XY-BSH-Ca as calcium supplements and functional peptide additives, the high-value utilization approach of bamboo shoot resources is expanded, and a new thought is provided for research and development of novel efficient calcium supplements.

This invention provides an environmentally friendly packaging box with a smart viewing window, comprising a box body, a closed viewing window on the side of the box, and the molding material of the box comprising, from the outside in, a barrier coating, a paper layer, and a functional film layer; the opening of the viewing window penetrates only through the barrier coating and the paper layer, and the functional film layer remains intact in the area covered by the opening, directly forming the closed bottom surface of the viewing window; the barrier coating is a water-based environmentally friendly coating, coated or laminated on the outer surface of the paper layer, and the paper layer and the functional film layer are bonded together by an adhesive layer; the functional film layer is a biodegradable film with oxygen and water vapor barrier properties, wherein smart indicator material is uniformly dispersed. While ensuring the functionality of the viewing window, this invention simultaneously improves the environmental performance, intelligence level, barrier performance, and production efficiency of the packaging.

The invention relates to a conversion method and system for sulfur-containing raw hydrocarbon. The invention relates to a method for converting sulfur-containing feedstock hydrocarbon. Comprising the following steps: 1) providing a sulfur-containing feedstock hydrocarbon wherein the feedstock hydrocarbon has a sulfur content of 50-5000 mg / kg, based on the total weight of the feedstock hydrocarbon, 2) chemically converting the sulfur-containing feedstock hydrocarbon to obtain a sulfur-containing conversion product, and 3) steam cracking the sulfur-containing conversion product to obtain a cracking product comprising ethylene. According to the invention, the sulfide in the raw material can be effectively converted into hydrogen sulfide, and the hydrogen sulfide is selectively retained in the conversion product, and when the conversion product is used as the ethylene raw material, the sulfur injection amount can be reduced and even the sulfur injection can be canceled, so that the high-value utilization of valuable components is realized.

This invention relates to the field of industrial exhaust gas purification and gas utilization technology, specifically to a system and method for separating and reusing flue gas components. The system includes a flue gas treatment skid-mounted module, a flue gas recovery skid-mounted module, and a solid product generation skid-mounted module. The flue gas treatment skid-mounted module includes a denitrification unit, a dust removal unit, a desulfurization tower, and a CO2 capture unit connected in sequence. The flue gas recovery skid-mounted module includes an air separation unit and a CO2 regeneration unit. The solid product generation skid-mounted module includes a carbonization reactor and an oxidation reactor. This invention achieves the capture, purification, and high-value utilization of CO2 from industrial flue gas to prepare nano-calcium carbonate through integrated skid-mounted modules, resulting in high gas utilization efficiency, excellent application effects, and high product economics.

The invention relates to a method for preparing polyphosphate by using a white phosphate fertilizer, which comprises the following steps: uniformly mixing the white phosphate fertilizer with tap water, stirring and heating to 40-60 DEG C to prepare white phosphate fertilizer slurry; adding sulfuric acid, stirring and heating to 60-100 DEG C, and reacting for 60-120 minutes to obtain white phosphate fertilizer acidolysis slurry; filtering while hot to obtain a white phosphate fertilizer acidolysis filtrate and an acidolysis filter cake, and washing the acidolysis filter cake with hot water to obtain phosphogypsum and washing water; adding a neutralization regulator into the white phosphate fertilizer acidolysis filtrate, keeping the temperature during acidolysis, and stirring to react for 10-60 minutes to prepare neutralization regulation slurry; concentrating the neutralized and adjusted slurry until the water content is 30%, transferring to a polymerization reaction device, adding a condensing agent, heating to 110-250 DEG C, and reacting for 45-180 minutes to prepare polyphosphate; low-value citrate-soluble phosphorus in the white phosphate fertilizer can be converted into high-value polyphosphate, and a new way is provided for high-value utilization of the white phosphate fertilizer.

The invention relates to a ZSM-5 nanosheet catalyst and a preparation method and application thereof, and belongs to the technical field of catalysts.According to the preparation method, the morphology of the catalyst is regulated and controlled through a specific silicon-aluminum ratio and a specific fluorine-aluminum ratio, so that the obtained ZSM-5 nanosheet catalyst has an excellent catalytic effect, and the catalyst has a good application prospect. The waste cable crosslinked polyethylene can be effectively degraded and recycled into a series of gaseous and liquid hydrocarbons, and high-value utilization of the waste cable crosslinked polyethylene is realized.

The application discloses a tin-antimony mud recycling method, which comprises the following steps: step S1, tin-antimony mud ball milling, tin-antimony mud is ball milled in pure water and is subjected to a filtering and drying procedure to obtain tin-antimony mixed powder; step S2, carbon particle mixing, tin-antimony mixed powder obtained in step S1 is mixed with carbon particles to form mixed powder of tin-antimony mixed powder and carbon particles; step S3, acid atmosphere heating, the mixed powder of tin-antimony mixed powder and carbon particles obtained in step S2 is subjected to a heating reaction under an acid atmosphere, and after the heating reaction, a heat preservation and cooling process is performed; step S4, sieving, the mixture obtained in step S3 is sieved, the powder falling through the sieve is a lithium battery negative electrode inert metal mixture, and the powder obtained on the sieve is a tin-antimony-bismuth-carbon composite powder; the tin-antimony-bismuth-carbon composite powder comprises carbon particles with tin-antimony-bismuth oxide particles attached; the tin-antimony-bismuth-carbon composite powder is used for lithium ion battery negative electrode material; and the application can efficiently recycle tin-antimony mud.

The invention provides a method for preparing natural-color semi-chemical pulp from bamboo reed, and belongs to the field of papermaking. The method makes full use of the advantages of rich fiber content and high yield of the bamboo reed, and fills the vacancy of domestic plant fiber raw materials. The technological method of the bamboo reed natural-color semi-chemical pulp gives full play to the characteristics of high bamboo reed fiber content, low raw material silicon content, low lignin content, easiness in pulping and good water filtration, develops and optimizes cooking, pulping and screening technologies, and is simple in equipment requirement and easy to popularize. The prepared bamboo reed natural-color semi-chemical pulp is excellent in tightness, ring crush resistance and tear strength, and is suitable for oil-proof paper and packaging paper products.

A multi-domain wireless communication anti-interference method and system based on master-slave game, the method includes: modeling the communication party as a leader, modeling the jammer as a follower, combining the power domain and the time domain, and establishing the utility function of the communication party and the jammer and the master-slave game model based on the weighted rate; modeling the jammer observation error model and the jammer finite rationality model for the observation error of the jammer on the communication party parameters; considering the jammer observation error model and the jammer finite rationality model, according to the utility function of the communication party and the jammer and the master-slave game model, the optimization problem of the transmitter and the jammer is obtained, and the reverse induction method is used to solve it, and the optimal time domain and power domain parameters of the communication party and the jammer are obtained, and the obtained parameters are used to control the wireless anti-interference communication process. The present invention comprehensively considers the joint optimization of the communication party and the jammer in the power domain and the time domain, and finds the optimal transmission strategy of the communication party according to the imprecise observation and finite rationality of the jammer.

This application relates to a treatment device for ferric phosphate wastewater evaporation mother liquor, with a height-to-inner-diameter ratio ≥2.5, comprising: a shell; the shell including a cylindrical section and a conical bottom; a cap at the top of the cylindrical section; a stirring mechanism on the cap; an overflow port on the upper side wall of the cylindrical section; an overflow ring corresponding to the overflow port inside the cylindrical section; one end of a feed pipe communicating with the cap; the conical bottom communicating with the cylindrical section; a discharge port on the side wall of the conical bottom; and a volume ≥0.5 m³. 3 A heat exchange mechanism is fitted onto the outer surface of the cylindrical section and the conical bottom; the heat exchange mechanism is located between the overflow port and the discharge port; the height difference between the overflow port and the discharge port is ≥800mm. This device improves crystallization efficiency and crystallization effect by optimizing the shell structure.