45results about How to "Plentiful and cheap" patented technology

The invention relates to a process and a device for preparing chromium iron by using chromium ore powder, which belongs to metallurgical industry steel-making raw material. The process comprises the following steps: mixing chromium iron containing raw materials with reducing agent, solvent and catalyst to prepare ultra fine powder, mixing to make pelletizing materials, sending the pelletizing materials into a reducing furnace, drying and roasting, and obtaining chromium irons after the reduction reaction. The reducing device is connected with an upper furnace above a furnace base, a lower furnace body is connected to the downside of the furnace base, the upper end of the upper furnace body is connected with an upper furnace mantle, a drying bed grate is positioned at the upper end in the upper furnace body, a purifying device is connected with the upper furnace body and the lower furnace body through pipelines, and a residual heat circulating device is connected with the lower furnace body. The invention has the advantages that: firstly, the reduction temperature is low, the reduction speed is high, the energy consumption is reduced, the production cost is lowered, the production efficiency is high, and the uniformity of the quality is ensured; secondly, the device is simple with less investment, the degree of mechanization is high, the procedure is simple, the yield is large, the mass production can be performed; thirdly, the waste of raw materials is reduced, the environment pollution is lowered; fourthly, the cost is low because the chromium ore powder and chromium-containing waste are adopted as raw materials; and fifthly, the waste resource can be recycled so as to save the resource consumption.

The invention discloses an ink cleaning agent which comprises the components with the weight percentage: 1-5% of alkyl phosphoester. 2-7% of oleic acid poly-ethanol ester, 0.1-1% of sulfonated castor oil, 0.2-1.5% of C5-6 and C18-23 synthetic fatty acid sodium soap, 0.2-1% of C10-16 synthetic fatty acid monoethanol amine, 0.5-5% of hexamethylene glycol, 10-56% of D-limonene and 23.5-56% of water. The invention aims at overcoming the defects in the prior art, and provides the ink cleaning agent which is produced by the D-limonene extracted from the waste citrus fruit peel and has the advantages of non-toxicity, innocuity, zero emission, low production cost and high efficiency.

The invention belongs to the technical field of material chemistry, and particularly relates to a macro preparation method for a carbon doped zinc oxide-based visible-light catalyst. The method disclosed by the invention adopts a micro-molecular organic matter combustion-supporting method for macroscopically preparing the carbon commingled zinc oxide-based visible-light catalyst. The preparation principle of the catalyst is that the reaction heat of the combustion of the micro-molecular organic matter at a high temperature is used to realize effective sedimentation and doping of a carbon element in zinc oxide crystals; at the same time, a large number of gases are generated in reaction processes, products can be crushed effectively, so that small-sized carbon doped zinc oxide-based nano particles are obtained, and the macro preparation of the carbon doped zinc oxide-based visible-light catalyst is realized. Prepared nano-powder has the advantages that the dispersibility is good, the particle sizes are small, the sizes are uniform, the visible-light catalytic property is excellent, and the chemical stability is high; at the room temperature of 27 DEG C-33 DEG C and sunlight exposures, the visible-light catalyst can completely degrade an organic dyestuff rhodamine B in 15 minutes, so that the catalyst can be applied to the fields of controlling environmental pollutants and the like.

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

The invention relates to an integrated ecological strawberry cultivation method for reducing pest and disease damage and improving fruit quality. The method comprises the steps that nutrient solution diluent special for strawberries is irrigated in a dripped mode 14-18 days after strawberry seedlings are planted in a fixed mode, and diluted microorganism bacterium agents are sprayed during the fixed planting period of the strawberry seedlings and/or the flowering-fruit expanding period. By means of the organic matrix, strawberry special nutrient solution and microorganism bacterium agent integrated cultivation method, soil-borne diseases of the strawberries are reduced. The strawberry 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 yield of strawberry fruit is increased, and the quality is improved.

The invention belongs to the field of chemical technology, in particular to a preparation method of a light color conducting nano powder material, namely a preparation method of conducting nano powder material doped with zinc aluminum oxide (ZAO). The preparation method adopts spontaneous combustion, mixing, grinding, drying and calcining corresponding zinc source, aluminum source and a combustion improver under certain temperature to obtain the nano powder material doped with zinc aluminum oxide. The prepared powder has good dispersivity, uniform distribution of particle size, excellent conductivity and high chemical stability, can be widely applied to the fields of antistatic coating, rubber and plastics and the like, and has the advantages of cheap price, easy color mixing and the like.

The invention discloses a preparation method of an immobilized microbial agent for kitchen waste treatment and an application thereof. The method comprises the following steps: respectively performing high-density liquid fermentation on Kluyer pichia yeast and geotrichum silvicola, and mixing the bacterial liquids in proportion; after concentrating a composite bacterial solution, adding the composite bacterial solution to a modified carrier, mixing the materials, adding a crosslinking agent during a mixing process, and then performing constant temperature aeration culture; and after constant temperature aeration, performing low temperature drying to obtain the immobilized microbial agent. The method of the invention not only significantly increases the amount of carrier immobilized thalline, but also makes the binding between the carrier and the thalline tight, prevents the living bacteria from being lost in the preparation process and the preservation, improves the live bacteria of the unit mass of the microbial agent, and reduces the amount of the microbial agent; The prepared microbial agent has strong capability for decomposing the kitchen waste, the odor generated in the process of degrading the kitchen waste can be eliminated, the amount of the thalline immobilized in the carrier is large, the binding between the carrier and the thalline is closer, and the biomass of the living bacteria is large.

The invention discloses a bagasse carbonized ruthenium-loaded biomass-based catalyst as well as a preparation method and application thereof. A carbon-based ruthenium catalyst is prepared by taking bagasse as a raw material through a carbonization-immersion method. A loading agent bagasse of the bagasse carbonized ruthenium-loaded biomass-based catalyst provided by the invention is obtained from factory wastes. The bagasse is used as waste crops and is repeatedly utilized, so that energy saving and environment protection are realized and resources are rich; the bagasse is used as a solid catalyst and can be separated from a reaction system by utilizing pumping filtration; meanwhile, the catalyst has high catalytic activity, can be repeatedly utilized for a plurality of times and has a wide application prospect.

The invention discloses a compound rice straw substrate for promoting phytoremediation on cadmium polluted soil and a preparation method and application thereof. The compound rice straw substrate comprises an upper substrate layer and a lower substrate layer, wherein the upper substrate layer is prepared from 55-65 parts of composted rice straw substrate particles, 10-20 parts of rice straw long fiber, 5-10 parts of composted animal waste, 5-10 parts of nitrogen phosphorus and potassium compound fertilizer, 0.5-1 part of plant rhizosphere fertilizer and 1-3 parts of biodegradable polymer adhesion agent, and the lower substrate layer is prepared from 85-95 parts of composted rice straw substrate particles, 3-5 parts release agent coated soil chelating agent, 0.5-1 part of soil yeast powder and 1-3 parts of biodegradable polymer adhesion agent. The survival rate of the plants restored by the composite substrate is higher, the growth speed is higher, the survival time is longer, and accordingly the phytoremediation efficiency is improved.

The invention provides a method for prolonging cycle life of a lithium ion battery by piezoelectric ceramic. A small quantity of piezoelectric ceramic crystals are adopted in preparation of a precursor of a positive electrode material of a lithium battery; and when lithium ions are in mobility, the piezoelectric ceramic crystals, which suffer from an external electric field effect, generate mechanical deformation so as to suppress structural changes of lithium cobalt oxides, lithium manganate, lithium iron phosphate, lithium nickel cobalt phosphate and other lithium ion positive electrode materials in a cyclic charging-discharging process. Therefore, the problem of capacity fading of the electrode material in a cyclic process is solved fundamentally, the reversibility of the cyclic charging-discharging process is improved, and the cycle life is greatly prolonged; and in addition, lithium ions can pass freely and high electric conductivity is achieved, so that the initial efficiency and the rate capability of the lithium battery are improved.

The invention provides a lithium battery positive body employing aluminum phosphate foam glass as a current collector and a preparation method. The method comprises the steps of carrying out colloidal reaction on a precursor of a positive material for a lithium battery in flake aluminum phosphate foam glass and sintering to form a novel positive body employing the aluminum phosphate foam glass as the current collector. The novel positive body is different from the positive body formed by coating the current collectors, such as aluminum foil with different positive materials, and is a novel positive body formed by reacting the precursor of the positive material in glass foam cells and sintering into a whole, and the novel positive body has good micro-elasticity, and can be directly cut and assembled, and an adhesive does not need to be added in use. The lithium battery positive body has the significant effects that the adhesive and the aluminum foil for preparing a positive plate are reduced and relatively high energy density is ensured. The positive material is stabilized by the foam glass micro-elasticity of a lattice structure in the charge and discharge processes to prevent collapse of the lattice structure, and the cycle life of a positive electrode of the lithium battery is effectively prolonged.

The invention relates to a composite preparation for synchronously restoring PAH (polycyclic aromatic hydrocarbon) and heavy metal contaminated soil. The composite preparation is prepared through steps as follows: a modified zinc oxide catalyst, activated carbon, polyacrylamide, quick lime and sulfide in a certain proportion are placed in a reaction kettle and fully stirred, and the composite preparation is obtained. The composite preparation can be widely applied to restoration of PAH and heavy metal contaminated soil, underground water remediation, relevantly polluted non-water treatment and other fields.

The invention relates to an instant-boiled soup and a boiling method thereof, which is characterized in that garlics and onions are taken as main ingredients and the following ingredients are added: spice, seasoning and fermented glutinous rice; furthermore, the following steps are carried out to prepare the instant-boiled soup: selecting raw materials, cutting and mixing raw materials, cooking, boiling, deslagging and storing. The instant-boiled soup has rich nutrition and moderate taste, is spicy but not dry, is fresh and savory, has excellent taste and wide edible range, can be taken at any time and is economical; the raw material has wide source, and is sufficient and cheap, therefore, the instant-boiled soup is beneficial for popularization and usage.

The invention relates to a preparation method of a super-efficient sewage dephosphorization adsorbent, and belongs to the technical field of sewage treatment and adsorbents. According to the method, based on a reaction that magnesium metal is combusted in a carbon dioxide atmosphere, MgO crystals and amorphous carbon are generated at the same time simply and quickly in one step; the two substancesare uniformly combined in a nanometer scale, so that the formed magnesium-based nano composite carbon material can be used as the super-efficient sewage dephosphorization adsorbent. The adsorbent hasextremely fast adsorption kinetics, a wide pH application range and relatively strong impurity anion interference resistance, the adsorption capacity of the adsorbent to phosphorus in a solution is higher than 1000mg/g, and the efficient and rapid phosphorus removal effect can be achieved in actual sewage with various complex components. The method disclosed by the invention is simple to operate,short in preparation period and rich and cheap in raw material source, and the adsorbent has no toxicity to the environment, does not cause secondary pollution during preparation of the adsorbent andphosphorus removal application, and has a very good application prospect.

The invention belongs to the technical field of building materials, and discloses an ecological environment-friendly building material. The ecological environment-friendly building material is prepared from the following raw materials in parts by weight: 20 to 40 parts of pulverized fuel ash, 15 to 20 parts of bentonite, 10 to 20 parts of epoxy resin, 10 to 20 parts of polypropylene fiber, 10 to 15 parts of modified starch, 10 to 15 parts of hydroxymethyl cellulose, 5 to 10 parts of graphene oxide, 5 to 10 parts of inorganic heat preservation material, 5 to 10 parts of a flame retardant, 3 to8 parts of calcium lignosulfonate and 1 to 5 parts of a dispersing agent. The ecological environment-friendly building material provided by the invention is rich and cheap in raw material source, hasthe characteristics of high water absorption, high flame retardance and high strength and has the effects of heat preservation and heat insulation; meanwhile, the permeability of a wall body can be improved, the adhesion ability can be improved, excellent heat preservation performance can be obtained, resources are saved, environment pollution is reduced, a living environment is fresher and more natural, and physical and psychological health of residents can be ensured.

The invention belongs to the technical field of materials chemistry, and particularly relates to light color rodlike ZAO (Zinc Aluminium Oxide) conductive powder and a preparation method thereof. According to the invention, a hydrothermal-template method is adopted; and the preparation method includes the following steps: adding corresponding zinc source, aluminium source and a template agent into a hydrothermal reaction kettle; after adding water and uniformly stirring, regulating the pH value of a reaction system into 7 to 8 by utilizing ethylenediamine; after performing the hydrothermal reaction for a certain time, carrying out centrifugal analysis and drying on a precursor; and calcining at a certain temperature to obtain the light color rodlike ZAO nano powder. The powder has excellent electrical conductivity, has high temperature resistance and oxidation resistance, can be used as a connecting material of a micro electronic device and can overcome the defects of a zero-dimension ZAO powder material in application.

The invention discloses a synthetic method of DLcysteine. The method comprises the following steps: by using acrylonitrile as a raw material, chlorinating to generate 2, 3dichloropropionitrile, hydrolyzing to generate corresponding acid, reacting the acid with thiourea to cyclize to generate 2-aminothiazoline-4-carboxylic acid, adding alkali sulfide to generate 2-mercaptothiazoline-4-carboxylic acid, and hydrolyzing to generate cysteine. The synthesis method provided by the invention has the advantages of short synthesis steps, mild preparation conditions, sufficient and cheap raw material sources and higher product yield.

The invention discloses a processing method of avocado leaf green tea. The processing method comprises the technological processes of fresh leaf picking, withering, enzyme deactivation, moisture regaining, blending, rolling, deblocking, shaping, drying, fragrance improving, refining, packaging and the like. Avocado leaves are used as main raw materials, the fresh leaves of orange osmanthus tea leaves are used as auxiliary materials, and the proportion of the raw materials is strictly controlled, so that the main components of the two components have a synergistic effect, the health-care effectof the green tea is enhanced, and the quality of the green tea is improved. The targeted processing technologies such as enzyme deactivating, rolling after enzyme treatment, fragrance improving and the like are provided, so that the effective components can be completely fused, the complex microscopic reaction is generated during the preparation process, and the processed green tea has characteristics of fresh and sweet taste, bright soup color, and special ginger sugar aroma; and the method is simple and easy-performing operation, and the economic benefits of the green tea and the effectiveutilization of avocado leaf resources are favorably improved.