2891results about How to "Process environmental protection" patented technology

The invention relates to a fertilizer water dispersible granule and a method for preparing the same. The fertilizer water dispersible granule comprises one or more of plant nutrient substances and at least one surfactant which are processed to prepare the regular or irregular granular water dispersible granule. The fertilizer water dispersible granule consists of the following raw materials in portion by weight: 5 to 95 portions of the plant nutrient substance, 1 to 40 portions of the surfactant and 0 to 94 portions of an assistant. The invention has a preferential proposal: the plant nutrient substance comprises monopotassium phosphate, boric acid or borax, humic acid and salt thereof. The fertilizer water dispersible granule also comprises one or more of growth regulators. In addition, the fertilizer water dispersible granule can also comprise a disintegrating agent, an adhesive, a filler, a colorant and other assistants. The preparation method comprises: the metering, pulverization, even mixing, pelletization and drying of formula materials to obtain the fertilizer water dispersible granule. The fertilizer water dispersible granule has rapid disintegrating and dissolving (dispersing) speed in water, is fully dissolved, does not block a nozzle and a drop irrigation pipeline, is uneasy to absorb moisture, has high content of effective compositions, low packaging, storage, transportation, metering and use cost and high utilization rate of the effective compositions, reduces waste and environmental pollution, is widely applied to economic crop, gardening, lawn and urban greening and has extremely wide market application prospect.

An aerodynamic-hybrid, vertical-axis wind turbine which includes a rotor airfoil and stator blade combination which maximizes energy production by increasing wind velocity and pressure while eliminating back pressure and improving the laminar flow of wind both around and through the device. The rotor airfoils have a horizontal cross-section with a crescent shape including a convex leading side and a concave trailing side with a thicker middle section that tapers to narrower sections at ends. The stator blades have a horizontal cross-section with a planar side and a convex side. Rotor airfoil and stator blade combinations are secured between upper and lower annular sails.

A footwear adhesion system including a thermoplastic film, a sole component, and a footwear component. In one embodiment, the thermoplastic film is a thermoplastic polyurethane (“TPU”) film. The film is sandwiched between the sole component and the footwear component. The film may be activated, for example, by high frequency welding, to form a bond between the sole component and the footwear component without releasing the amount of volatile organic compound emissions typical with conventional adhesives. Use of the film reduces or eliminates the need for conventional environmentally unfriendly cement in footwear construction.

An environmentally-friendly cleaning composition for industrial and consumer applications comprising (a) a blend of dibasic esters, (b) one or more surfactants (c) and, optionally, (d) water or a solvent. The dibasic esters are be derived from a blend of adipic, glutaric, and succinic diacids, and, in one particular embodiment, the blend comprises dialkyl adipate, dialkyl methylglutarate and dialkyl ethylsuccinate, wherein the alkyl groups individually comprise a C₁-C₁₂ hydrocarbon group. The one or more surfactants are typically chosen from alcohol alkoxylate, an alkyl phenol ethoxylate, a terpene, a terpene alkoxylate or any derivates thereof. Optionally, additional components or additives including delaminates such as pinene and d-limonene, fragrances, whiteners, stabilizers, thickeners and the like can be added to the composition. The industrial or consumer application selected from the group consisting of a graffiti cleaner, a painted-substrate cleaner, an ink cleaner, a metal substrate cleaner, a plastic substrate cleaner, an environmentally friendly cleaner, a stain-spot cleaner, an industrial hand cleaner, a resin cleaner, a tar resin cleaner, a textile cleaner, a paint stripper and any combination thereof.

A method for preparing highly stabilized and dispersible zero valent iron nanoparticles and using the nanoparticles as a remediation technology against inorganic chemical toxins in contaminated sites. The method employs a composition containing select polysaccharides (starch or cellulose) as a stabilizer for the iron nanoparticles in a liquid carrier, and results in suspensions of iron nanoparticles of desired size and mobility in water, brine, soils or sediments. The stabilizer facilitates controlling the dispersibility of the iron nanoparticles in the liquid carrier. An effective amount of the composition is delivered to a contaminated site so that the zero valent iron nanoparticles can remediate one or more toxins such as an arsenate, a nitrate, a chromate, or a perchlorate in the contaminated site.

The invention relates to a method for preparing spongy graphene oxide by using a freeze-drying method, which is in a loose and porous type and is in a spongy type in a macro-morphology. The method comprises the steps of: after an improved Hummers process is utilized to prepare graphite oxide, preparing graphite oxide into a solution with water or ethanol, and then carrying out quick-freezing and vacuumizing on the solution, and sublimating a solvent to obtain the graphene oxide. The graphene oxide is different from general blocky, film type or powdery graphene oxide. The obtained loose and porous graphene oxide provided by the invention is in a spongy type, is an excellent precursor for preparing graphene, and has a great application foreground in the field of an anti-flaming composite material, an adsorbent and the like. The method for preparing spongy graphene oxide by using a freeze-drying method is free from environmental pollution, convenient in technology and small damage to graphite oxide sheets, and completely strips graphite oxide; and the porosity of the graphene oxide is 20-90% and the pore distribution is uniform.

The present invention provides a method for the covalent immobilization of biomolecules on polymers for delivery of the biomolecules, which has the advantage of being simple, highly efficient, environmentally friendly and free of side products relative to traditional immobilization techniques. The invention provides a modified micro/nanoparticle system, which uses a functionalized polymer formed into micro or nanoparticles to bind a molecule to the particles using uses facile chemistry, the Diels-Alder cycloaddition between a diene and a dienophile with the polymer being functionalized with one of them and the molecule with the other, or the Huisgen 1,3-dipolar cycloaddition between a terminal alkyne and an azide to bind the molecule to the particle. The molecules and/or other therapeutic agents may be encapsulated within the polymer particles for intravenous therapeutic delivery. The invention also provides a novel synthetic biodegradable polymer, a furan/alkyne-functionalized poly(trimethylene carbonate) (PTMC)-based polymer, whose composition can be designed to meet the defined physical and chemical property requirements. In one example, the particle system self-aggregates from functionalized PTMC-based copolymers containing poly(ethylene glycol) (PEG) segments. The composition of the copolymers can be designed to meet various particle system requirements, including size, thermodynamic stability, surface PEG density, drug encapsulation capacity and biomolecule immobilization capacity.

An alkaline non-cyanide plating solution for copper-plating used on iron and steel base and a preparation method thereof relate to a kind of plating solution. The invention provides the alkaline non-cyanide plating solution for copper-plating used on iron and steel base and the preparation method thereof. The plating solution comprises the following components: main salt, complexing agent, conductive salt, activator, cuprous ion complexing agent, pH stabilizer and brightening agent. The method comprises the following steps: adding complexing agent in water, stirring to dissolve complexing agent, obtaining a solution A; adding main salt in the solution A, stirring to dissolve main salt, obtaining a solution B; adding conductive salt in water, stirring to dissolve conductive salt, obtaininga solution C; mixing the solution B and solution C, adjusting the pH value to 2.0-4.5 with sulfuric acid or sodium hydroxide, obtaining a solution D; adding additive in the solution D, adding water toperform constant volume process and obtaining the alkaline non-cyanide plating solution for copper-plating in the desired volume for use, wherein the additive is activator, cuprous ion complexing agent, pH stabilizer and brightening agent.

The invention discloses lutein ester microcapsule powder and a preparation method thereof. The preparation method comprises the following steps of: preparing an oil phase solution and a water phase solution respectively, and mixing and emulsifying the oil phase solution and the water phase solution; and non-water raw materials comprise the following components in part by weight: 1 part of lutein ester crystal, 0.05 to 0.1 part of oil phase antioxidant, 0.02 to 0.1 part of oil phase emulsifying agent, 0.05 to 1 part of plant oil, 0.5 to 25 parts of wall material, 0.1 to 0.5 part of water phaseemulsifying agent, 0.05 to 1 part of water phase antioxidant, and the balance of filler. In the preparation method for the lutein ester microcapsule powder, the oil-soluble lutein ester is fully dispersed in cold water in the form of sub nanometer particles, and the product can be self-emulsified in water, and is good in instant capacity and self-emulsification capacity, and high in stability, and has uniform and durable color; and the phenomena of oil floating, precipitation, adhesion to a bottle wall and the like are avoided during application. Organic solvents are not introduced in the powder, so solvent residues are avoided in the product. The production process is environment-friendly, simple and practicable, expensive equipment is not needed, and the microcapsule powder can be industrially produced easily and conveniently.

Disclosed are environmentally friendly, substantially all solids coating compositions which are curable using ultraviolet and visible radiation. In addition, the disclosed coating compositions are suitable for coating flexible objects and/or objects having angular features, such as, but not limited to, flexible metal objects with angular features. In addition, methods are disclosed for coating surfaces, or at least a portion of the surfaces, and curing of the coated surface to obtain partially or fully cured coated surfaces. Furthermore, articles of manufacture incorporating fully cured coated surfaces are disclosed, including, for example leaf springs. Also disclosed are methods, processes, production lines, articles of manufacture, and factories which incorporate these environmentally friendly, substantially all solids coating compositions curable using ultraviolet and visible radiation.

The invention provides a bidirectional power converter, that can be connected directly to an AC system without interposing a transformer, that is small in size, light in weight, inexpensive to manufacture, and capable of regenerative operation, and also provides a motor drive equipped with such a power converter and a BTB system and a grid-linking inverter system each comprising such a power converter. The power converter comprises converter cells each comprising: a first AC/DC converter which performs bidirectional power conversion between single-phase AC power and DC power; a second AC/DC converter whose DC side is connected to the DC side of the first AC/DC converter, and which performs bidirectional power conversion between single-phase AC power and DC power; a third AC/DC converter which performs bidirectional power conversion between single-phase AC power and DC power; and a high-frequency transformer which is connected between the AC side of the second AC/DC converter and the AC side of the third AC/DC converter. If the power converter 1 is an AC-input/AC-output type, the power converter further comprises a fourth AC/DC converter which is connected to the DC side of the third AC/DC converter, and which performs bidirectional power conversion between single-phase AC power and DC power.

Blocked mercaptosilanes can be manufactured by reacting mercaptosilanes with organic or inorganic halides or anhydrides in the presence of an acid acceptor and washing the resulting reaction product with water/brine to yield two immiscible phases: an organic phase containing blocked mercaptosilane product and an aqueous phase containing the salt of the acid acceptor. Recycle of the acid acceptor is achieved by adding base to the aqueous phase. The process is suitable to be run in either batch or continuous mode. The blocked mercaptosilane compounds are used as coupling agents in rubber mixtures.

The invention discloses a general synthesis method of a three-dimensional compound structure based on three-dimensional MXene, and belongs to the field of nano materials. The three-dimensional compound structure is composed of a three-dimensional MXene load inorganic nano structure and is of a flower-like hierarchical porous structure. The method comprises the steps that an ultrasonic atomizer isadopted for atomizing mixed suspension liquid of three-dimensional MXene particles, metal salt and an auxiliary into aerosol micro-droplets, and under inert or reactive atmosphere, high-temperature fast drying is conducted to obtain the three-dimensional compound structure with controllable structure and size; or the three-dimensional MXene particles and metal salt or a nonmetallic compound are evenly mixed in solvent or in a solid-phase mode to obtain a mixture, and high-temperature calcination is conducted under the inert or reactive atmosphere to obtain the three-dimensional compound structure with controllable structure and size. By means of the three-dimensional compound structure based on the three-dimensional MXene, the problems of inorganic nano material particle aggregation, poorconductivity and two-dimensional MXene stacking can be solved, and thus a foundation is laid for preparation, processing and various aspects of application of a MXene-based high-performance functionalmaterial.

A container for a temperature sensitive product, such as a pharmaceutical compound, includes an inner vessel and an outer shell. When the inner vessel is contained in the outer shell, a chamber adapted to receive a phase change material is defined between an inner vessel wall and an outer shell wall. A container may also include multiple chambers defined by multiple walls, with different phase change materials disposed in different chambers. A cap, such as a child-proof cap, may be used to secure the contents of the container.

A composition comprises a) from about 80 to 99.5 percent by weight of a functionalized film-forming polymer matrix; b) from about 0.5 to 20 percent by weight of an intrinsically conductive polymer dispersed in the matrix; wherein the functionalized film-forming matrix controls the electrical conductivity in the composition, within a range of less than 5 orders of magnitude from about 105 to about 1010 ohm/square, and is selected from the group consisting of acyclic organic hydroxyl compounds, and acrylates and methacrylates, containing at least one functionality selected from the group consisting of urethanes, epoxies, glycols, hydroxyls, polyesters, ethoxylates and propoxylates. The present invention also provides processes for making a conductive coating or blend compositions.

The invention discloses a method for separating vanadium-titanium magnetite to extract iron, vanadium and titanium, comprising the following steps of: magnetically selecting raw magnetite, that is, acquiring iron-vanadium concentrate and tail magnetite after performing magnetic selection on the vanadium-titanium magnetite; sorting titanium concentrate from the tail magnetite, that is, acquiring the titanium concentrate after performing floating selection on the obtained tail magnetite; roasting and magnetically selecting the titanium concentrate, that is, performing enriched-titanium impurity-removing magnetic selection after roasting the titanium concentrate; finely selecting the iron-vanadium concentrate, that is, performing the magnetic selection and fine section again on the iron-vanadium concentrate obtained from magnetic selection; reducing and smelting, that is, mixing the titanium concentrate obtained from the impurity-removing process with the iron concentrate according to the beneficiation yield, adding in a reducer and soda ash to perform reduced iron and vanadium smelting process; purifying vanadium slag, that is, removing the impurity of the vanadium slag obtained by reducing and smelting by using the acidic dipping to obtain the high-quality titanium slag product with the content of TiO2 larger than 92%; and extracting vanadium from pig iron, that is, performing vanadium extraction by converter blowing on the vanadium-containing pig iron obtained by reducing and smelting to obtain the semi-steel and vanadium slag. The method not only improves the utilization ratio of titanium, iron and vanadium but also obtains the high-titanium slag product with the content of TiO2 larger than 92% so as to widen the application field of titanium.

The present invention provides a process for eliminating contaminants from epihalohydrin-derived epoxy resins. Another embodiment of the present invention is an epoxy product formed using said process. Yet another embodiment of the present invention is an epoxy derived in part from epihalohydrin wherein said epoxy is has a hydrolyzable halogen content of less than 10 ppm and an epoxide equivalent weight within 2 percent of the theoretical epoxide equivalent weight.

A ferroelectric/pyroelectric sensor employs a technique for determining a charge output of a ferroelectric scene element of the sensor by measuring the hysteresis loop output of the scene element several times during a particular time frame for the same temperature. An external AC signal is applied to the ferroelectric scene element to cause the hysteresis loop output from the element to switch polarization. Charge integration circuitry, such as a combination output capacitor and operational amplifier, is employed to measure the charge from the scene element. Preferably, the ferroelectric of the scene element is made of an economical and responsive strontium bismuth tantalate, SBT, or derivative thereof, disposed directly between top and bottom electrodes. Because of the frequency characteristics of the sensor, created by the external AC signal, the element need not be thermally isolated from the silicon substrate by a traditional air bridge, which is difficult to manufacture, and instead is preferably thermally isolated by spin-on-glass, SOG. To prevent saturation of an output signal voltage of the sensor by excessive charge accumulation in an output capacitor, the sensor preferably has a reference element configured electrically in parallel with the scene element. When the voltage of the AC signal is negative the output capacitor is discharged by flowing current through the reference element thus interrogating the polarization of the reference element which is compared to and subtracted from the polarization of the scene element for each cycle. The polarization difference measured for each cycle over a set time period are summed by an integrating amplifier to produce a signal output voltage.

This invention provides emulsions and adhesives comprising proteins that can be isolated from a variety of sources including renewable plant biomass, and methods of making and using such emulsions and adhesives.

The invention relates to the technical field of polymer plastics and discloses an antimicrobial polyamide material and a preparation method thereof. The antibacterial polyamide material consists of the following components: polyamide resin, an antimicrobial agent, a compatibilizer and an antioxidant. One purpose of the invention is to provide the antimicrobial polyamide material which is non-toxic, antibacterial, natural and environmentally-friendly; and the other purpose of the invention is to provide the preparation method of the antimicrobial polyamide material, wherein the preparation method is simple and environmentally-friendly in process.

Low density expanded and extruded thermoplastic polymer foams are obtained using an environmentally benign non-VOC and non-HAP methyl formate as a blowing agent. The blowing agent can be a blend further including at least one co-blowing agent, preferably an environmentally friendly species (e.g., non-VOC and/or non-HAP). The co-blowing agent is either a physical co-blowing agent (e.g. an inorganic agent, a hydrocarbon, a halogenated hydrocarbon, a hydrocarbon with polar, functional group(s), water or any combination thereof), or a chemical co-blowing agent, or combinations thereof The thermoplastic polymer foam can be an alkenyl aromatic polymer foam, e.g. a polystyrene foam. The blowing agent blend can include any combination of methyl formate and one or more co-blowing agents. The methyl formate-based blowing agent blends produce stable foams for various applications, including containers, packaging systems, as well as insulation boards and building materials. Processes for the preparation of such foams are also provided.

This invention concerns a composition useful as a paint remover, comprising: alkylene carbonate such as propylene carbonate or ethylene carbonate, hydrogen peroxide, and water, and optionally an alcohol such as benzyl alcohol. In another broad respect, this invention concerns a process for removing paint, comprising: applying a composition containing alkylene carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint. In another broad respect, this invention is a composition useful as a paint remover, comprising: dialkyl carbonate, hydrogen peroxide, and water, optionally containing an alcohol, optionally containing a glycol ether. In another broad respect, this invention is a process for removing paint, comprising: applying a composition containing dialkyl carbonate, hydrogen peroxide, and water to a painted surface for a time and under conditions effective to cause blistering or bubbling of the paint.

The invention provides a composite air purificant containing nanometer mineral matters, which contains 47wt% to 78wt% of attapulgite as a natural mineral, 20wt% to 50wt% of synthetic zeolite molecular sieve as a molecular sieve, 0.5wt% to 5wt% of sodium carbonate or sodium chloride or sodium fluoride or sodium hydrogensulfite as a modifier, 0.5wt% to 5wt% of ammonium bicarbonate or sodium bicarbonate or aluminum sulfate as a foaming agent, 0.5wt% to 2wt% of dodecyldimethylbenzylammonium chloride as a surface active agent, 0.2wt% to 2wt% of nanometer photocatalyst titanium dioxide colloidal solution as a photocatalyst and 0.1wt% to 1wt% of nanometer aircatalyst titanium dioxide colloidal solution as photochemical catalysts. The composite air purificant is prepared by first drying, first pelleting, second drying, second pelleting, third drying, baking and finish product detection and package. The invention has high alternative adsorbability and high decomposition efficiency for organic pollutants in the air.

A non-fluorocarbon oil and grease barrier packaging for storing materials, particularly products that need oil and grease resistant characteristics and are used in high temperature applications. The barrier packaging does not contain fluorocarbons, which improves the environmental rating of the oil and grease barrier packaging. The packaging is made by applying a starch based coating having a solids content in a range about 10% to about 35% to a substrate and forming the package from the substrate. The starch based coating preferably contains a starch derivative, a flexibility enhancing agent, a rheological agent, and a scorch resistant agent. When the package is heated, no fluorocarbons are emitted as result of heating the package.

The invention relates to a complex antibacterial fiber, a fabric and a preparation method thereof, in particular to an irradiation grafting coordination group on the surface of the fiber and on the surface of the fabric, the complex antibacterial fiber loading antibacterial components Ag, Cu and Zn and the composition thereof, the fabric and the preparation method thereof. The method improves the mobility of the antibacterial components in a fiber surface liquid film, has favorable sterilization effect and antibacterial effect, is suitable for modification of organic polymer fibers and fabrics of various types and preparation of corresponding broad-spectrum antibacterial fibers and fabrics, does not generate negative influences on the hygroscopicity, the air permeability and the mechanical properties of the fibers and the fabrics, has simple preparation technology, and is convenient to realize industrialization and lower the production cost.

An optically clear biofouling resistant coating compositions specially formulated for very high light transmission and more particularly coating compositions which can be applied to marine instruments and sensors. The compositions provide a biofouling resistant coating on the surface of the marine instruments and sensors which prevents underwater organisms from adhering and growing on the surfaces of the structures over a long period of time.