9results about How to "Achieve high value" patented technology

The invention discloses a comprehensive utilization method of bamboos, and belongs to the technical field of comprehensive utilization of bamboo products. According to the silicon content difference of different parts of the bamboos, the raw bamboos are separated into the bamboo green layers and the bamboo flesh for graded utilization, the bamboo green layers are used for producing high-added-value products, the bamboo flesh is used for pulping and papermaking, and efficient comprehensive utilization of the low-carbon high-silicon bamboos is achieved. Graded utilization is achieved based on natural differences of silicon contents of all parts of bamboo wood, the silicon content of a bamboo green layer is far higher than that of bamboo pulp, the bamboo green layer is rich in active ingredients, 62% or above of silicon in pulping bamboo chips can be removed from the source after stripping, the silicon content of pulping black liquor is reduced by 53% or above, and the pulping quality is improved. The core problems of equipment scaling, alkali recovery rate reduction and the like caused by silicon in the papermaking process are thoroughly solved, meanwhile, high-added-value products such as bamboo-based composite materials and functional drinks can be specifically prepared through the bamboo green layer, and bamboo meat meets the pulping and papermaking requirements due to rich fibers and low silicon content; and finally, high-value comprehensive utilization with low carbon, environmental protection and high economic benefit of the bamboo wood is achieved.

The invention relates to an aluminum and lithium co-extraction method of clay type lithium ore. The aluminum and lithium co-extraction method comprises the following steps: (1) pretreating the clay type lithium ore to obtain crushed ore; (2) the crushed ore is subjected to two-step countercurrent hydrothermal leaching, and aluminum-lithium-rich leaching liquid and leaching residues are obtained; and (3) carrying out adsorption lithium extraction on the aluminum-lithium-rich lixivium to obtain a lithium-rich solution and an adsorption raffinate, carrying out post-treatment on the lithium-rich solution to obtain a lithium salt product, and carrying out post-treatment on the adsorption raffinate to obtain a meta-aluminate product. The method realizes efficient separation and resource utilization of multiple components such as lithium, aluminum and the like, has high lithium salt purity and stable meta-aluminate product quality, and has the characteristics of short process, low energy consumption and suitability for industrial production.

The invention belongs to the technical field of food processing, and relates to a melon rind source stabilizer, an extraction method thereof and application of the melon rind source stabilizer in watermelon juice. The extraction method comprises the following steps: S1, preparing watermelon peel pulp: taking inner peels of watermelons, adding water, and crushing into the watermelon peel pulp; step S2, alkaline hydrolysis ester removal: regulating and controlling a water medium microenvironment to enable the pH value of the melon rind pulp to be 10-13, and reacting at room temperature to remove methyl ester groups; then filtering and washing in sequence to obtain watermelon peel residues; and S3, low-temperature high-pressure homogenization and vacuum freeze drying are combined. The watermelon peel source stabilizer is extracted from watermelon inner peel pulp through alkaline hydrolysis ester removal and low-temperature high-pressure homogenization combined with vacuum freeze drying treatment, has a good network framework, and is not prone to molecular chain breakage, charge shielding or dehydration shrinkage in ultrahigh-pressure sterilization, so that the stability of watermelon juice is improved, and the stability of the watermelon juice is improved. Particularly, the double-effect stability of lycopene and juice in the watermelon juice can be regulated and controlled.

The invention provides a method for extracting lithium from lepidolite and concentration equipment, and relates to the field of battery material production. The method for extracting the lithium from the lepidolite comprises the following steps: S1, adding sulfuric acid into the lepidolite, heating to 200-300 DEG C, roasting, destroying mineral lattices through an acid leaching process, stirring, leaching and filtering to obtain silicon dioxide and a mixed sulfate solution; and S2, cooling, crystallizing and filtering the mixed sulfate solution to obtain alum and a solution containing Li < + >. According to the method for extracting the lithium from the lepidolite, a small amount of lithium and aluminum contained in the gypsum residues generated in the process of extracting the lithium from the lepidolite are recycled, the gypsum residues are deeply treated, the characteristics of amphoteric hydroxides and reagent circulation are utilized, high-valued aluminum and lithium and a green closed loop are achieved, the treatment pressure of industrial solid waste is reduced, and the production cost is reduced. The environmental pollution risk is reduced, the maximum utilization of resources is realized, and the waste discharge is reduced.

The utility model relates to the field of building material recovery, especially a kind of environmental protection building material recovery device with glue, including wind cylinder, the upper portion of wind cylinder is equipped with blowing assembly, wind cylinder top is equipped with cover frame, heating assembly is arranged in the middle of wind cylinder, worm is rotatably connected in the lower side of wind cylinder, first mounting plate is placed in the lower part of wind cylinder, and first mounting plate is rotatably connected with wind cylinder.The utility model integrates hot air softening, dynamic angle cutting and modularization stripping function, high-temperature polythermal air beam efficiently softens glue layer, worm and half worm wheel realize the angle accurate adjustment of cutting component, adapt to special-shaped base material, glue-removing knife and thorn roller module with quick switching respond to different adhesive strength glue layer, improve separation efficiency and purity, overall design significantly reduces energy consumption and labor cost, realizes the high-value, environmental protection recovery of waste material with glue.

This invention relates to the field of waste lithium battery recycling technology, specifically disclosing a method for high-value recycling of lithium cobalt oxide battery cathode materials. The method includes the following steps: adding oxalic acid, hydrogen peroxide, and nano-zirconia to the fully discharged and de-aluminum-foil-removed lithium cobalt oxide cathode material, and grinding it in a zirconia ball mill; after grinding, leaching and filtration to separate cobalt oxalate residue and lithium-containing filtrate; adding potassium fluoride to the filtrate to convert it into lithium fluoride, and then regenerating the oxalic acid using Amberlyst-15 ion exchange resin for recycling. This method achieves efficient separation, high-purity recovery, and is economical and environmentally friendly through the synergistic effect of mechanical and chemical action and reagent regeneration technology, providing a feasible path for the high-value recycling of lithium cobalt oxide battery cathode materials.

The invention discloses a method for co-producing high-purity sodium fluoride and ammonium chloride through fluorosilicic acid ammonolysis, and belongs to the technical field of fluorine chemical industry. Firstly, fluosilicic acid reacts with ammonia water to prepare an ammonium fluoride solution; secondly, sodium chloride and a sodium pyrophosphate inhibitor are added into the solution, and sodium fluoride coarse crystals and first mother liquor are obtained through programmed temperature control crystallization; then, carrying out two-stage negative pressure gradient concentration on the first mother liquor, deeply recovering sodium fluoride and crystallizing ammonium chloride; then, carrying out gradient purification on the sodium fluoride coarse crystal by absolute ethyl alcohol to obtain a high-purity product; finally, the ammonium chloride wet material is granulated into a superior chemical fertilizer through a fluidized bed, through the innovative crystallization and purification technology, the total yield of sodium fluoride is stabilized at 96.5% or above, the product purity breaks through 99.8%, meanwhile, high-value utilization of the by-product ammonium chloride is achieved, and economic and environment-friendly benefits are remarkable.

The present application relates to solid waste resource utilization technical field, disclose a kind of methods for preparing silicon micro powder based on chlorination waste brine quenching slag in situ carbothermal reduction, method includes: S1, the molten salt chlorination waste brine quenching slag is carried out drying and ball milling treatment, and pretreatment material is obtained;S2, pretreatment material is carried out magnetic separation, and non-magnetic mixture is obtained;S3, after non-magnetic mixture and mixed acid are carried out acid dipping reaction, solid-liquid separation is carried out, and the silicon-rich filter residue containing silicon dioxide and elemental carbon is obtained;S4, after silicon-rich filter residue is washed and dried, silicon dioxide and elemental carbon in it are made to carry out carbothermal reduction reaction under inert atmosphere, and silicon micro powder product is obtained.The purity and resource utilization rate of silicon micro powder product are improved by the scheme of the present application, and high-value and clean utilization of waste water quenching slag is realized.

The application discloses a preparation method for improving the quality of modified asphalt by using tar residue, relates to the technical field of asphalt preparation, and comprises a raw material tank, a tar residue bin, a coarse grinding machine, a first ultracentrifuge, an ammonia water underground tank, a coal tar storage tank, a plurality of second liquefied tanks, a fine grinding machine and a second ultracentrifuge. Two tar residue self-unloading centrifuges are connected to the discharge port of the raw material tank. The discharge outlets of the two tar residue self-unloading centrifuges are connected with the feed inlet of the tar residue bin. The discharge outlets of the two tar residue self-unloading centrifuges are connected with buffer bins. The method has the advantages of mild reaction conditions, low equipment requirements, low operation energy consumption, small safety risks, effective regulation and control of the polymerization degree of asphalt, and accurate improvement of the coking value and bonding performance of modified asphalt. The quality of the whole process from the raw material tar residue obtained from the inside of the raw material tank to the storage of the modified asphalt in the coal tar storage tank is closed-loop controlled, so that the stable production of high-quality modified asphalt is ensured.