127results about How to "Abundant and cheap raw materials" patented technology

The present invention discloses a preparation method of a complex lithium negative pole of a solid state battery, and belongs to the technical field of electrochemistry and new energy resources. The preparation method mainly comprises the steps: depositing lithium metal on three-dimensional carbon material or foam porous material gaps by using a heat infusing melting method or an electrodeposition method to obtain the complex lithium negative pole, wherein the application of a three-dimensional framework plays two roles, namely, providing adequate space for pre-storing lithium in the preparation process; providing a carrier for receiving metal lithium in a battery circulation process. The complex lithium negative pole can be widely applied in lithium metal batteries such as lithium ion batteries, lithium-air batteries, lithium-sulfur batteries, and solid state batteries. In the assembled symmetric solid state battery, under large electric current density of 5mA cm-2, a stable voltage decay (200mV) can still be kept after circulation for 100 times, in the battery circulation, the growth of lithium dendrites can be inhibited and the pole volume change can be stabilized, and the advantages of being good in circulation stability, and long service life can be realized; in the present invention, a carrier material is rich, and low in price; the process is controlled, the cost is low, and the batch production can be realized.

The invention relates to a method for preparing a phosphorus-containing organosilicon flame retardant, and provides a method for preparing a phosphorus-containing flame retardant, which has the advantages of rich raw materials, low cost, simple production technology, no HCl generated in a reaction, and recyclable by-products of the reaction to solve the technical problems. The preparation process comprises the following steps of: reacting an active phosphorus compound with a hydroxyl-containing polysiloxane in the presence of a catalyst, wherein the molar ratio of the active phosphorus compound to the hydroxyl-containing polysiloxane is 1:1-20; and after the reaction, filtering, and steaming to remove low-boiling-point substances to obtain the product of the phosphorus-containing organosilicon flame retardant.

A pond-lake heavy-metal pesticide fertilizer pollutant solidifying removing agent relates to the technical field of disinfectants, and is composed of the following raw materials: 450-600 parts of montmorillonite, 150-300 parts of silicate clinker, 80-150 parts of quicklime, 50-100 parts of modified starch, 10-30 parts of plaster, 3-6 parts of glucoside, 5-10 parts of alum, and 3-8 parts of calcium chloride. The beneficial effects comprise that the employed raw materials are abundant and cheap, the preparation technology is simple, the agent is applicable to pollution cleaning of large-scope water body of ponds, lakes and rivers, is capable of rapidly thoroughly eliminating organic harmful substances, chemical pesticides and harmful microbes and heavy metals in water body, has improving eliminating effect on total phosphorus and total nitrogen in eutrophic water, has growth-controlling effect on algae in water body, and has water-bottom anti-permeation effect and effect of preventing heavy metals from permeating and polluting water resource.

The invention discloses a method for preparing a composite sodium negative electrode for a sodium-ion battery and belongs to the field of new energy materials. According to the method disclosed by the invention, metal sodium is deposited in gaps of a three-dimensional carbon material or a foamed porous material and other carriers through a hot infusion melting method or an electrodeposition method, so that the composite sodium negative electrode is prepared, wherein the three-dimensional carbon material is applied to providing a sufficient space for pre-stored sodium in the preparation process and providing a carrier for receiving the metal sodium in the battery cycle process. The composite sodium negative electrode can be widely applied to the sodium-ion battery, a sodium air battery, a sodium-sulfur cell and other sodium metal batteries, is assembled into a sodium-ion symmetric cell to still keep a stable voltage platform under high current density, is capable of inhibiting sodium dendritic growth and stabilizing volume change of the sodium electrode in the battery cycle process, and has the advantages of good cycling stability, long service life and the like. The method disclosed by the invention is rich and cheap in carrier materials, controllable in preparation process, low in production cost and capable of realizing batch production.

The present invention relates to a method for preparing highland barley bran oil from highland barley bran, specifically to a method for preparing highland barley bran oil from highland barley bran using a water-enzyme method, pertaining to the field of grain and oil deep processing technique. The method includes: firstly performing enzymolysis to the highland barley bran, and then adopting a three-phase separation extraction method, solvent extraction or cold demulsification extraction method to extract highland barley bran oil, wherein, the enzymolysis to the highland barley bran is divided into a method of performing direct enzymolysis to the highland barley bran or a method of firstly alkali extraction and then performing enzymolysis enzymolysis barley bran. The inventive water-enzyme method has a environmental-protecting type extraction process and good safety; in addition, the enzymolysis condition is mild, and can achieve the object of simultaneously using the lipid and protein, and the oil has not been processed under high temperature, thereby improving the quality of the extracted lipid; the invention has improved oil yield; the lipid obtained by the water-enzyme method does not require the degumming process, thereby simplifying the lipid refining process. Therefore, the inventive method has stronger industrialization practicability and operability.

The invention relates to a special complete nutrient solution and organic matrix integrated cultivation mode for strawberries. Waste residues after cultivation of crop straws and edible mushrooms and organic wastes such as animal excrement are subjected to innocent treatment to serve as a cultivation matrix of the strawberries; a water-soluble fertilizer is made into a complete nutrient solution according to the fertilizer requirement law of the strawberries; and water and nutrient elements are supplied to root system areas of the strawberries by a water and fertilizer integrated manner. The cultivation mode for the strawberries has the characteristics of safe fertilizing, water saving, labor saving, low cost, high availability of matrix raw materials, high fertilizer utilization rate, prevention of soil-borne diseases and successive cropping obstacle, and the like. The strawberries produced by the technical mode have the characteristics of high yield, attractive appearance, high size uniformity, rich nutrient, low pesticide residue, good taste, bright color, high commodity rate and the like.

The invention relates to a method for preparing a spherical carbon heavy metal adsorbent. The method is characterized by taking pentosan extracted by a bleached hardwood pulp alkaline method as a raw material and pure water as a solvent, and comprising the steps of after treatment at high temperature and high pressure under a hydrothermal condition, centrifugally separating so as to obtain a dark brown solid product, namely carbon spheres rich in acid oxygen-containing functional groups, washing the dark brown solid product for many times by distilled water and absolute ethyl alcohol till filtrate is clear, and drying in vacuum so as to obtain the spherical carbon heavy metal adsorbent. The method has the main characteristics that the pentosan extracted from a byproduct of pulping and papermaking is taken as the raw material and is environmentally friendly, cheap and easily available, water is taken as the solvent, the reaction needs no modifier and further oxidation, the adsorbent containing a large quantity of hydroxyl and carboxyl oxygen-containing functional groups is formed through dehydration, condensation, aromatization and carbonization, the adsorbent and metal ions can have chelation, and the adsorbent can be used as high performance adsorbent for adsorbing heavy metal ions like Pb(II) and Cd(II).The hydrothermal reaction adopted in the method has a simple operation process and the adsorbent is low in cost and has an excellent adsorbing effect.

The invention discloses a method for preparing high-adsorption ceramsite by using biochar. The method comprises: drying biomass waste, crushing, carrying out oxygen limited pyrolysis for 1-5 h at a temperature of 200-600 DEG C, cooling to a room temperature to obtain biochar, completely mixing biochar and any one or more than two selected from biogas residue powder, kaolin powder, illite, chlorite, dolomite powder, biogas residue powder, montmorillonite, bentonite powder, diatomite powder and perlite powder, stirring, granulating, roasting for 0.1-3 h at a temperature of 500-1200 DEG C, cooling, breaking, and screening to obtain the high adsorption ceramsite. According to the present invention, the high-adsorption porous biochar ceramsite with stable chemical properties can be obtained bycarrying out mixed sintering on biochar, kaolin and the like; and with the method, the pore structure of ordinary ceramsite is optimized, the ion exchange capacity is improved, the adsorption of conventional ceramsite is enhanced, and the obtained product can be efficiently used in the fields of sewage treatment, soil improvement, environmental restoration and the like.

The invention relates to a special full-value nutrition liquid and organic substrate integral cultivating mode for green peppers. Organic wastes, such as crop straws, waste slag after edible fungi cultivating, and feces of livestock, are used as raw material, and are subjected to harmless treatment to form a green pepper cultivating substrate, so as to replace the soil. Full water-soluble fertilizer is prepared into full-value nutrition liquid according to the fertilizer requiring rule of the green pepper, and the water and the nutrients are supplied to the root area of the green pepper in a water and fertilizer integral way. The cultivating mode for planting the green pepper has the advantages that safety is realized, the water and the labor are saved, the cost is low, the management is easy, the raw material of the substrate can be easily obtained, the utilization rate of the fertilizer is high, soil-borne diseases are avoided, and the like. Compared with the green pepper planted in common soil, the green pepper produced by the cultivating mode has the advantages that the yield is high, the fruit is thick, the nutrition ingredients are rich, the content of pesticide residues are low, the taste is good, the number of odd fruits is little, the commodity rate is high, and the like. The cultivating mode disclosed by the invention is used for producing high-yield and high-quality green pepper in the areas where the normal agricultural production cannot be carried out, such as heavy-salt alkaline lands, mountain lean lands and abandoned industrial and mining lands.

A hydrothermal preparation method of a carbon quantum dot used as a visible light catalytic photosensitizer is characterized by comprising the following steps: taking larches as raw materials; carrying out high-temperature high-pressure hydrothermal process treatment on the raw materials; centrifugally filtering and removing a dark brown solid product to obtain a light yellow liquid product; centrifuging the liquid product at high speed; controlling centrifugal rotation speed and centrifugal time; removing insoluble small particle impurities; carrying out dialysis by using a certain molecular weight of dialysis bag to remove unreacted sugars, salt contents and the like; then carrying out concentration to obtain a target product, namely a water-soluble fluorescent carbon quantum dot. The water-soluble fluorescent carbon quantum dot is compounded with TiO2 to prepare a photocatalytic composite system; by taking antibiotics as models, photocatalytic degradation performance of the composite system on the model and interaction efficiency of the carbon dot used as the photosensitizer are inspected. The operation process has the main characteristics that larches with rich resources in Heilongjiang province are used as raw materials; the raw materials are environment-friendly, are low in cost and are easy to get; hydrothermal reaction is low in temperature and low in pressure, addition of passivating agents such as acid, alkali and salt is not needed, the product is water-soluble and has a certain fluorescent effect, the reaction process is simple to operate, and the cost is low.

The invention relates to an integrated ecological zucchini cultivation method for reducing pest and disease damage and improving fruit quality. The method comprises the steps that nutrient solution diluent special for zucchinis is irrigated in a dripped mode 14-18 days after zucchini seedlings are planted in a fixed mode, and diluted microorganism bacterium agents are sprayed during the fixed planting period of the zucchini seedlings and/or the flowering-fruit expanding period. By means of the organic matrix, zucchini special nutrient solution and microorganism bacterium agent integrated cultivation method, pest and disease damage to the zucchinis is reduced. The zucchini special nutrient solution has no lethal effect on the microorganism bacterium agents and provides a nutrition condition for life activity of functional bacteria, by means of mutual collaboration, the quality of zucchini fruit cultivated through facilities is improved, and the yield is increased.

The invention discloses an aquaculture pond pollutant curing decomposing agent and relates to the technical field of aquaculture. The aquaculture pond pollutant curing decomposing agent is prepared from 500-600 parts of calcium-based montmorillonite, 20-30 parts of modified diatomite, 20-30 parts of water glass, 20-30 parts of quick lime, 20-30 parts of white mica, 10-30 parts of soda mica, 8-10 parts of activated carbon, 6-10 parts of alum, 6-8 parts of gelatin, 8-10 parts of calcium oxide and 10-12 parts of magnesium sulfate. The aquaculture pond pollutant curing decomposing agent has the advantages that the adopted raw materials are abundant and low in price, the manufacturing technology is simple and convenient, and organic noxious substances, chemical fertilizer, pesticide, harmful organisms and heavy metal in a water body can be removed quickly and completely; total phosphorus and total nitrogen of an eutrophic water area can be reduced or removed, growth of algae in the water body can be controlled, the water bottom seepage-proofing function is achieved, and the heavy metal can be prevented from permeating and polluting water resources; physical-chemical reactions are used for conversion, water body pollutants are controlled and removed fundamentally, and popularization is facilitated.

The invention discloses an additive for sterilizing sludge at the bottom of a loach cultivation pond and relates to the technical field of aquaculture. The additive comprises, by weight, 30-40 parts of quick lime, 15-25 parts of mountain flour, 20-30 parts of potassium permanganate powder, 6-8 parts of copper sulfate, 8-10 parts of salt, 6-8 parts of alum, 3-5 parts of tea seed cake, 6-8 parts of croton, 3-5 parts of cassia twig, 4-6 parts of perilla leaf, 2-4 parts of radix sileris, 2-4 parts of radix angelicae dahuricae, 1-3 parts of asarum, 5-7 parts of fistular onion stalk, 3-5 parts of rhubarb, 2-4 parts of chrysanthemum, 2-4 parts of rhizoma anemarrhenae, 2-4 parts of selfheal, 30-40 parts of water, 15-25 parts of starch and 80-90 parts of gelatin. The additive has the advantages that the additive is rich and cheap in raw material, simple in preparation process and high in sterilizing performance, the additive can directly act on the sludge at the bottom of the pond to clean the sludge, loach diseases are minimized, cultivation effect is increased, and cultivation income is increased.

The invention provides special animal feed for livestock and relates to the technical field of preparation of the feed. The special animal feed is prepared from the following raw materials: 60-80 parts of soybeans, 50-60 parts of soybean meal, 20-30 parts of corns, 10-20 parts of lard stearin, 10-20 parts of meat and bone meal, 5-7 parts of dried blood, 5-15 parts of fish meal, 10-20 parts of shrimp shells, 20-30 parts of fish bone meal, 8-10 parts of silkworm chrysalis meal, 8-10 parts of fly maggot meal, 10-20 parts of cod-liver oil and 15-25 parts of compound vitamin. The special animal feed for the livestock has the beneficial effects that the raw materials are abundant and cheap, and a manufacturing process is simple and convenient; only animal raw materials are used in the feed, so that the good absorption of poultry is guaranteed in a normal eating process; meanwhile, the feed also has a lot of plant protein and heat quantity, is convenient for the livestock to eat and can prevent the livestock from getting ill; and the feed is the animal feed hard to get, and is capable of improving the growth speed of the livestock after being used for a long period, so that the production value of farmers is improved.