843results about How to "Toxic" patented technology

The invention relates to a stabilization and solidification method of highly toxic waste residues containing one or more of mercury, arsenic, chromium, cadmium and cyanide. Heavy metal is stabilized through chemicals, and then the highly toxic waste residues are sequentially wrapped with gypsum plus paraffin and epoxy resin. After four times of wrapping and two times of solidification, highly toxic substances in the waste residues are fully solidified into a solidified body, and the generated solidified body is high in strength and long in stability, and can be buried conveniently later.

The invention discloses a recycling and harmless treatment method for cyaniding tailing slurry. In the method, the cyaniding tailing slurry containing cyanogen, thiocyanate, heavy metal and arsenic and liquid containing hydrogen peroxide are subjected to direct mixing treatment; the method utilizes high specific surface area of micro-fine granular ore to add the contact opportunity between the thiocyanate and the hydrogen peroxide and the contact area between gas phase and liquid phase through surface adsorption to accelerate a speed of oxidation-reduction reaction and an acidifying and stripping speed, utilizes metallic substances contained in slag to accelerate the reaction rate of the oxidation-reduction reaction without the addition of catalyst, and can reduce cost; meanwhile, in neutralization, Fe3+ in the slag is utilized to meet the requirement of arsenic precipitation without the addition of an arsenic precipitation reagent; when residual cyanides is removed from the hydrogen peroxide liquid, the hydrogen peroxide liquid and cyano complexes which are difficult to remove through the oxidation-reduction reaction form sediment so that the residual thiocyanate is further removed; the method can make the conversion rate of the thiocyanate in the ore slurry more than or equal to 88 percent; and compared with the treatment of filter pressing clear liquid of homogeneous ore slurry, the total reclaiming rate can be increased by over 20 percent.

The invention provides an all-organic type engine coolant which comprises glycol, fat carboxylic acid, tricarboxylic acid, benzoic acid, tri (2-ethylhexoic acid) phosphonate, imidazoles compound, defoamer and deionized water. The engine coolant of the invention contains no inorganic salts, such as amines, borate, nitrate, nitrite, silicate, and the like, so the engine coolant is environment-friendly, can prevent all the contacted metal and nonmetal materials in the engine cooling system from being corroded, has an obvious engine coolant effect on various metals, particularly solves the problem that the cast aluminum using a traditional organic acid engine coolant becomes black generally, can be stabled in a relative low density and bigger PH value range, and has the advantages of long-time storage and use.

The invention provides a filling device of a liquid propellant and a method thereof. The filling device of the liquid propellant comprises a high-pressure air source device, a pressurizing device of a transit storage tank, a propellant transfer filling device, a propellant blow-off device, a pressure relief device, the transit storage tank and a propellant storage tank. The device adopts a pressure difference method to carry out filling of the liquid propellant. The pressurization of the transit storage tank and blow-off of the propellant use high-purity nitrogen; the pressure relief device guarantees the pressure difference of the transit storage tank and the propellant storage tank so as to guarantee the normal proceed of the filling process; and the pressure relief device can relief the pressure of the pipeline so as to guarantee the test safety. The filling device of the liquid propellant and the method thereof also can be used for other occasions of liquid transferring.

The invention discloses an oil-in-water emulsion paint remover. The compositions in percentage by weight of the paint remover are: 2 to 20 percent of nucleophilic monomer, 20 to 60 percent of macromolecular solvent, 3 to 10 percent of gamma-butyrolactone, 3 to 15 percent of alkyl butyl glycol ether, 0.5 to 3 percent of surface active agent (wherein the ratio between a non-ionic surface active agent and an ionic surface active agent is between 2:3 and 3:2 according to mass ratio), 2 to 5 percent of thickening agent, 1.5 to 4 percent of corrosion inhibitor and the balance being water. The oil-in-water emulsion paint remover does not contain a volatile chlorinated organic solvent or other haloid organic solvents, strong acid and strong base; meanwhile, the operative temperature of the paint remover is normal temperature, and the paint remover does not need to be heated; moreover, no oil film is formed, i.e. no secondary coating is needed.

The invention relates to a bromine-containing pentaerythritol phosphoester fire retardant and a preparation method thereof. The bromine-containing pentaerythritol phosphoester fire retardant is pentaerythritol double-spiro phosphoryl double-tribromo neopentyl alcohol ester. The preparation method of the novel bromine-containing pentaerythritol phosphoester comprises the following steps of: 1, reacting pentaerythritol with phosphorus oxychloride to generate an intermediate pentaerythritol double-spiro double-phosphorus oxychloride; and 2, reacting the pentaerythritol double-spiro phosphorus oxychloride with tribromo neopentyl alcohol to generate the pentaerythritol double-spiro phosphoryl double-tribromo neopentyl alcohol ester, wherein in the reaction, quaternary ammonium salt cation ionic liquid serves as a solvent and a catalyst. The invention discloses a new synthesis method of the bromine-containing pentaerythritol phosphoester fire retardant. The ionic liquid serves as the solvent, so the synthesis yield is improved; and a phosphorus-bromine synergistic flame retardant technique is adopted in the design of a molecular structure, so the anti-flaming efficiency of the flame retardant for high molecular materials is improved.

The present invention relates to a recovery technological process of car and electronic wastes and its recovery system. Said system includes removing equipment, breaking equipment, sorting equipment, plastics regeneration treatment equipment and metal component deep-processing equipment. Said plastics regeneration treatment equipment includes oxidation device, granular material drying device, mixing device and granulating machine. Besides, said invention also includes a data processing equipment, including data base, memory, analysis module and comparison and operation module, etc.

The invention provides an oil-base paraffin remover for oil wells, which is composed of aromatic hydrocarbon, saturated alkane, a penetrant and a solubilizer. The paraffin remover is composed of the following components in percentage by volume: 30-45% of aromatic hydrocarbon, 45-65% of saturated alkane, 0.1-1% of penetrant and 1.0-11.0% of solubilizer. The components are mixed by volume and stirred uniformly to obtain the paraffin remover. The density is 0.8-0.9 g/cm<3>; the paraffin dissolution rate is greater than 20mg/minute; the paraffin remover is free of sulfur and chlorine; the open flash point is greater than 40 DEG C; and the solidifying point is lower than -60 DEG C. The paraffin remover has the advantages of high flash point, high paraffin dissolution rate, environment friendliness and low toxicity, and well solves the problem of balance between the paraffin removal product rate and the environment friendliness and safety.

The invention discloses magnetic composite hydroxyapatite nanoparticles. The magnetic composite hydroxyapatite nanoparticles are composed of Fe3O4 nanoparticles and hydroxyapatite nanoparticles, wherein the molar ratio of the Fe3O4 to the hydroxyapatite is (1-10): 1; the magnetic composite hydroxyapatite nanoparticles are spherical aggregate or agglomerate in which the Fe3O4 nanoparticles and the hydroxyapatite nanoparticles are distributed evenly and alternately. The preparation method of the magnetic composite hydroxyapatite nanoparticles is simple; the nanoparticles are capable of efficiently removing heavy metal ions in sewage, and in the later treatment period, quick magnetic separation can be realized; the nanoparticles have the adsorbing capacity of 440mg/g to lead ions, the adsorbing capacity of 238mg/g to cadmium ions, the adsorbing capacity of 139mg/g to zinc ions and the adsorbing capacity of 135mg/g to copper ions in the sewage; the magnetic composite hydroxyapatite nanoparticles have a rapid magnetic response characteristic, and are capable of realizing rapid solid-liquid separation with an external magnetic field, and the separation process is high in separation efficiency, and simple and efficient to operate; and besides, the nanoparticles are not residual in water and do not cause secondary pollution to the water and the environment.

The invention discloses a graphene quantum dot nuclear targeting medicine carrying system as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, sterilizing an aqoeous solution of a graphene quantum dot and an aqoeous solution of an anti-cancer medicine; secondly, mixing the aqoeous solution of the graphene quantum dot and the aqoeous solution of the anti-cancer medicine according to the mass ratio of (5:1)-(50:1) to obtain a medicine carrying system; thirdly, co-cultivating the medicine carrying system and cells, detecting the toxicity of the cells by using an MTT (Methyl Thiazolyl Tetrazolium) method and detecting a medicine loaded into the cells by using a fluorescent microscope. According to the invention, by virtue of the characteristic that the graphene quantum dot has a single-atom planar structure, the graphene quantum dot and a micromolecule anticancer medicine with a polycyclic planar structure are combined by bonds to form the medicine carrying system which can stably exist in the aqoeous solution. The graphene quantum dot has a medicine carrying function; meanwhile, the graphene quantum dot has a special structure, so that the toxicity of the medicine to the cells can be increased. The medicine carrying system has the advantages of lower toxicity, simple preparation method, easiness for implementation and double functions of carrying the medicine and enhancing the toxicity of the medicine to the cells.

The invention belongs to the technical field of feed, and particularly relates to compound feed for improving the production performance of laying hen and the egg quality. The compound feed consists of corn, lard oil, soybean meal, rape seed cake, peanut meal, gunite bran, mountain flour, calcium hydrophosphate, lysine, methionine, liquid phytase, liquid xylanase and premix. The compound feed provided by the invention can obviously improve the production performance of laying hen and improve the laying rate and the egg quality, and can increase the weight of a single egg and reduce the damage rate of eggs; and moreover, after being eaten by the laying hen, the compound feed can promote digestive absorption, improve the feed conversion rate and the feed-gain ratio, and increase the economic benefits of laying hen farming.

Disclosed is a method for extracting dihydro quercetin from larch. The invention is an improved production method. Due to different production materials and extraction processes, the dihydro quercetin products in U.S. and European markets are very expensive, at a price of 200-1000 euros per gram. Such a high market price economically limits the wide range of practicability of dihydro quercetin products. During the pretreatment of raw materials, 50 kilograms of larch wood chips and 500-800 liters of 50% ethanol solution are added into a reactor to get fully stirred and mixed; then the mixture is extracted and filtered for the second extraction; the filtrates are combined and adsorbed; the organic solvents are collected and dried by a vacuum evaporator through organic phase vacuum distillation; according to a weight proportion of 10:1, the residues are dissolved with hot water, decolorized with activated carbon and then crystallized at a temperature of 3-5 DEG C to precipitate the dihydro quercetin product which is then crushed after vacuum drying to finished product. The invention is used to extract dihydro quercetin from larch.

An insecticide for the pests in homopteran, thysanoptera, lepidoptera and coleoptera is prepared from camptothecine or its derivative, emulsifier, penetrant and organic solvent through proportional mixing.

The invention belongs to the technical field of biology, and relates to a preparation method and application of shewanella spp-nanometer ferrous sulfide capsules. The method comprises the steps that an LB culturing medium and an M9 culturing medium are prepared, shewanella spp is inoculated to the LB culturing medium for culturing, and bacterial liquid is obtained; the LB culturing medium and theM9 culturing medium are mixed, sodium lactate, calcium chloride and magnesium sulfate are added, and reaction buffering liquid is obtained; then, the bacterial liquid is centrifuged, bacterial sludgeis added into the reaction buffering liquid until the OD 600 value is 0.05-5; then, a ferric chloride solution and a sodium thiosulfate solution are added into the reaction buffering liquid after inoculation of the bacterial sludge, and after culturing, centrifugation, washing and resuspending, the shewanella spp-nanometer ferrous sulfide capsules are obtained; in the process of synthesizing the capsules, the activity of the biological metabolism mechanism is fully utilized, the raw materials are simple and cheap, the application cost is low, and quantization production can be achieved; multi-period efficient removal for hexavalent chromium is efficiently achieved, and a new method is provided for efficiently processing heavy metal pollution.

The invention provides a fireproof coating for thick formed steel constructions. The coating is prepared from a fireproof filler, a fire retardant, a main binder, an auxiliary binder, a water-proofing agent and mica powder; the binding performance of the fireproof coating for the steel constructions is improved, meanwhile, the dosage of the fire retardant is optimized and the long fire resistance of the fireproof coating for thick formed steel constructions is guaranteed; other auxiliaries as the water-proofing agent are added to improve the water tolerance, anti-penetrability performance and weather fastness of the fireproof coating for the steel constructions are improved. The fireproof coating for the steel constructions has the characteristics of water tolerance, anti-permeability, fire resistance, impact resistance, simple preparation process, convenience for application, non-toxicity and harmlessness, long service life and the like. The fireproof coating for thick formed steel constructions is suitable for fireproof protection of the exposed parts of steel construction buildings high in fire endurance.

The invention provides a novel immunomodulatory protein FIP-ppl derived from a fungus by applying a genetic engineering means for the first time. According to the invention, a gene which codes the protein is provided and synthesized. The protein FIP-ppl has immunomodulatory and anti-tumor effect. Experiments verify that the protein has a catalytic splitting effect on splenic lymphocyte and can add synthesis of interleukin 2; the protein has remarkable suppress proliferation and apoptosis-inducing effects of the protein on hepatoma carcinoma cell HepG2 and gastric carcinoma cell MCG823 are further verified. The protein FIP-ppl provided by the invention is lowly homological with almost found immunomodulatory proteins of fungi and is a novel immunomodulatory and anti-tumor biological preparation.

The invention provides a Coxsackie virus A16 virus strain, uses of the strain, a vaccine and a preparation method of the vaccine. The preservation number of the Coxsackie virus A16 virus strain is CGMCC No.6954. The CA16 virus strain has strong virulence, can be used for evaluating the CA16 vaccine, and can also be used for researching the CA16 virus infection mechanism. A method for establishing a Coxsackie virus A16 infected animal model provided by the invention can provide a stable animal model, and provides a foundation for the development of the Coxsackie virus A16 vaccine, the screening of antiviral drugs and the researches of the CA16 virus infection mechanism. The vaccine prepared by using the CA16 virus has effective immune activity.

The invention relates to a water quality integrated bio-toxicity on-line automatic analyzer and a method for using the same. The analyzer is characterized in that the interior of the analyzer is provided with two temperature control areas, wherein one temperature area at a temperature of between 0 and 4 DEG C mainly comprises a freezing dry powder storing device, a sterilizing device, a freezing dry powder definite quantity control device and a nutrient solution storing device; and the other temperature area at a temperature of between 20 and 25 DEG C mainly comprises a photogenic bacterium activating reaction storing kettle, a buffering liquid storing device, a regulation and control device for water to be tested, a clear water flow rate transmission and control pipeline, a delicate testing device and a rotary long shaft fixing round plate in a dark box, wherein a test tube is assembled on the round plate; the dark box cover is connected with the photogenic bacterium activating reaction storing kettle, the buffering liquid storing device, the control device for water to be tested and an analyzer externally connected washing pipe through the flow rate transmission and control pipeline; and the interior of the dark box is provided with a photoelectric probe. The analyzer has the advantages of on-line test achievement for water quality integrated bio-toxicity, simple operation and high automation degree in the aspect of maintenance, and can obtain reasonable cost performance and be suitable for the on-line monitoring of abominable environment. The analyzer can be used as a single machine, and can also be used as a front-end product of a monitoring network system.

The invention discloses a low-toxicity Java Brucea Fruit oil milk injection liquid and preparing method. Take Java brucea Fruit oil or refined Java brucea fruit oil to heat, and add in bean lipoid to mix; take injection water and glycerin to mix, heat to 75íµ, slowly add in the mixture of Java Brucea Fruit oil and bean lipoid, use high-pressure homogenizer to circularly emulsify for 3-6 times, sample, assay, seal by pot and sterilize to make it. Heat Java brucea fruit oil to 80-100íµ, slowly inject in tepid injection water, heat and mix, place still to delaminate, and eliminate the water layer to make the refined Java brucea fruit oil.

The invention provides a method for the genetic transformation of agrobacterium tumefaciens mediated sclerotinia sclerotiorum. The method comprises the following steps: mixing and co-culturing the agrobacterium tumefaciens containing binary vectors and the protoplasts of the sclerotinia sclerotiorum; and screening by using antibiotics to obtain transformants, the transformation efficiency of the method reaches 1/5.9*104 protoplasts. By using the protoplasts of the sclerotinia sclerotiorum as the receptor and using the agrobacterium tumefaciens as the mediator, the method of the invention overcomes the problem of the difficult genetic transformation of sclerotinia sclerotiorum, which is resulted from the multinucleate hypha cells and the difficulty in obtaining a large amount of ascospore, and has the advantages of simple method and stable transformation efficiency. Meanwhile, the invention further provides a simple and effective method for preparing the protoplasts of sclerotinia sclerotiorum.

The invention discloses a method for removing the toxicity of tail water of fine chemical biochemical treatment, belonging to the field of sewage treatment methods. The method comprises the following treatment steps: (a) carrying out catalytic ozonation, specifically, treating sewage in a catalytic ozonation tower which is internally filled with an iron-aluminum catalyst, wherein the iron-aluminum catalyst is prepared from the following effective components: beta-iron oxyhydroxide and aluminum oxide; (b) absorbing, specifically, carrying out further treatment on wastewater, subjected to treatment in the step (a), by using an absorption filter filled with ceramsites and magnetic resin, wherein the mass ratio of the beta-iron oxyhydroxide to the aluminum oxide in the iron-aluminum catalyst is equal to (15-20) to (80-85), and the volume ratio of the ceramsites to the magnetic resin is equal to (2-3) to (3-5). The method provided by the invention is simple to operate and low in cost, and not only can realize the non-toxic emission of the tail water, but also can improve the comprehensive index of water quality.

The present invention is new recipe and preparation process of blood fat reducing medicine. The recipe of blood fat reducing medicine consists of red yeast preparation and phytosterol, or red yeast preparation and phytosterol ester, or red yeast preparation, phytosterol and other compound, or red yeast preparation, phytosterol and other mixture. The present invention can reduce the synthesis of cholesterol in liver and inhibit the absorption of cholesterol in intestinal tract, has high curative effect and is safe to human body.

The invention relates to a special biological disease-resistant vermin-proof culture medium for flowers and a preparation method thereof. The special biological disease-resistant vermin-proof culture medium for flowers is prepared from smoke dross, furfural residue, microbial fermentation inoculum, superphosphate, trichoderma microbial inoculum, bacillus microbial inoculum and expanded perlite. The preparation method comprises the following steps: compounding smoke dross, furfural residue, microbial fermentation inoculum and superphosphate; after the mixture is decomposed, sterilizing, adding trichoderma microbial inoculum and bacillus microbial inoculum with disease-resistant function; and after composting for some time, adding the expanded perlite. Abundant active trichoderma and bacillus and metabolites thereof contained in the culture medium provided by the invention have obvious inhibiting action on flower diseases; and the smoke residue and resolvents thereof have the action of expelling and killing vermins which are easily generated in the medium. When being used for planting flowers, the special culture medium for flowers can protect the environment, and is beneficial to human health.

A polyimide fiber with kidney-shaped section and a preparation method thereof belong to the technical field of polyimide fibers. The preparation method includes: utilizing polyamide acid (PAA) solution synthesized by aromatic dianhydride and aromatic diamine to perform the wet spinning process by the aid of circular spinneret holes, adjusting spinning conditions including spinneret speed, composition, proportion and temperature of coagulating bath, the length of hydrazine and the like to obtain a PAA as-formed fiber with kidney-shaped section, then washing and drying the PAA as-formed fiber, cyclizing and drafting the same at high temperature stage by stage, and winding and the like, finally obtaining the polyimide (PI) fiber with the kidney-shaped section. The preparation method of the polyimide fiber with the kidney-shaped section has the advantages of simplicity in spinneret hole design and processing, easiness in control of spinning process, high preparation efficiency, low cost for raw materials, low energy consumption and the like and can be used for large-scale industrialized production.

The invention discloses a chelated trace element fertilizer-medicament mixture. In the mixture, trace elements which are necessary for crops are mixed, a chelation reaction between organic matters and the trace elements is facilitated by adding a plurality of amino acids and lignosulfonates, and abamectin serving as a biological pesticide is selected and effectively matched with the fertilizer. The invention further provides a production and preparation method of a fertilizer-medicament liquid mixture product. Due to the adoption of the method, the coordination reaction level between trace element ions and a multi-effect chelating agent is raised, and the technical problems of emulsification and delamination are solved. The chelated trace element fertilizer-medicament mixture is applied to crop leaves, the lack of trace elements in crops can be corrected, a remarkable effect is achieved, and the effects of disease resistance and insect resistance are achieved.

The invention discloses a compound microbial preparation as well as a preparation method and application thereof. The preparation comprises phanerochaete chrysosporium balls, polyvinyl alcohol, silicon dioxide, activated carbon, sodium alginate and zeolite powder, which form the compound microbial preparation through crosslinking by a solution with sodium dihydrogen phosphate. The preparation method comprises the steps of preparing a gel liquid with the polyvinyl alcohol, sodium alginate, silicon dioxide and zeolite powder, mixing with a phanerochaete chrysosporium spore suspension with the activated carbon, then gradually dripping into the solution with the sodium dihydrogen phosphate so as to prepare embedded balls, and cultivating by a Kirk inorganic culture solution so as to prepare the compound microbial preparation. The compound microbial preparation has many gaps, high adsorption efficiency and good selectivity, the adsorbent has strong stability, the preparation method has the advantages of simple operation, low cost, affordability and so on, and the compound microbial preparation can be used for eliminating cadmium and 2, 4-dichlorophen in waste water.