13 results about "Iron oxide" patented technology

The invention provides a rubber composite used for rubber framework oil seal and a preparation method thereof. The rubber composite contains(based on weight portions) 100 portions of fluorubber26, 5-6 portions of acid absorber magnesia, 5-6 portions of calcium hydroxide, 9-1 portions of strengthening agent black carbon, 19-20 portions of barium sulphate, 17-19 portions of iron oxide red, 2-3 portions of process additive, 1.5-2 portions of curing ingredient bisphenol AF, and 0.6-0.8 portions of accelerant BPP. The rubber composite improves the tension strength, extensibility, tear resistance, self-lubricating effect, compressive deformation resistance and thermal aging resistance of the rubber framework, makes the rubber framework good in medium resistance and prolongs the service life of the rubber framework oil seal. Meanwhile, the method is simple in process, reasonable in mixture ratio and reduces preparation cost and defective index.

The present invention relates to one kind of new drying and crushing technique, in which high temperature air flow is used to impact material to disperse the material highly and to evaporate its water instantaneously, or, to make the material hydrolyze and condensate instantaneously to form highly dispersed dry fine particles. The technique may be used in dispersing inorganic pigment, inorganic stuffing and nanometer material.

The invention discloses a thermoplastic starch-polyvinyl alcohol composite plastic film, and relates to the technical field of film production. The composite plastic film is made by using the following raw materials, by mass, 80-100 parts of (self-made) thermoplastic starch, 40-55 parts of polyvinyl alcohol, 10-15 parts of acrylic acid, 5-10 parts of benzoyl peroxide, 7-12 parts of oxidized polyethylene wax, 4-8 parts of hydroxyethyl cellulose, 5-12 parts of calcium stearate, 5-15 parts of iron oxide, 3-6 parts of gelatin, 5-10 parts of urea, and 8-15 parts of polyethylene glycol. The composite plastic film made in the invention reserves the good biodegradation performance of starch and effectively improves the mechanical performances of a plastic film, and a covalent bond introduced due to the addition of a cross-linking agent can substitute a hydrogen bond in order to improve the mutual crosslinking among starch, polyvinyl alcohol and other raw material molecules.

The invention discloses a fuel oil additive mixture, which is composed of the following formula components by mass percentage: 20-50 parts of triethylamine, 30-50 parts of ethylene glycol, 30-50 parts of ethylenediamine, 15-50 parts of acetone, 20-40 parts of ethyl acetate, 30-40 parts of isooctyl nitrate, 20-40 parts of nano-iron oxide, 30-50 parts of glyceryl monooleate, 10-30 parts of palmitic acid, 5-10 parts of carbon tetrachloride, and 10-30 parts of propylene dichloride. The fuel oil additive mixture provided by the invention can clear carbon deposit, clean the fuel oil system, enhance the power performance, improve atomization, save fuel oil, prevent corrosion, prevent rust and lubricate, protect the engine, reduce noise, reduce wear, prolong the engine life, eliminate black smoke, and lower emission.

The invention provides a production and preparation method of a pesticide residue removal agent. The production and preparation method comprises the steps that a silicon oxide sol water solution is pre-formed, a silver-containing titanium oxide precursor solution is added into the silicon oxide sol water solution, thus the hydrolysis process of a titanium oxide precursor and generation of titaniumoxide particles are limited by a silicon oxide sol network, and overgrowth of the titanium oxide particles is controlled accordingly. The particle size of prepared nanometer titanium dioxide is smaller than 3 nm, the catalytic activity is high, and dispersion is stable. Ferric oxide nanoparticles are introduced into the preparation process to form a complex with titanium dioxide particles, the reaction catalytic activity is enhanced, and parts of reaction products can be flocculated and precipitated and thus are conveniently removed.

Disclosed is a plant protection agent comprising an amorphous and/or microcrystalline silicon- and phosphorus-containing iron oxide, and a method for controlling plant diseases, comprising the step of applying the plant protection agent.

The invention discloses a method for preparing a magnetic hybridized microsphere adsorption material for sewage treatment. The method comprises the steps: dissolving ferric nitrate and cobalt nitratein deionized water, adding modified attapulgite hybridized microspheres, carrying out uniform stirring and mixing, carrying out a heated refluxing reaction, and carrying out centrifugation, washing and baking, so as to obtain modified attapulgite-cobalt iron oxide magnetic hybridized microspheres; adding 2-methylimidazole and hollow zinc oxide microspheres into methanol, carrying out a stirred-mixed dissolution reaction, carrying out centrifugal separation and washing, and carrying out drying, so as to obtain zinc oxide composite microspheres; and adding cetyl trimethyl ammonium bromide, ultrapure water, anhydrous ethanol and ammonia water into nano ferroferric oxide, carrying out ultrasonic dispersion, then, dropwise adding tetrabutyl titanate, carrying out ultrasonic treatment, adding sunflower powder, carrying out magnetic stirring, carrying out magnetic field separation, then, carrying out washing, carrying out dispersing in acetone, carrying out heated refluxing stirring, carryingout magnetic field separation, carrying out alcohol washing, then, carrying out drying, carrying out heating-up treatment in a tubular furnace, carrying out cooling, and then, carrying out mixed ball-milling with the modified attapulgite-cobalt iron oxide magnetic hybridized microspheres and the zinc oxide composite microspheres, thereby obtaining the magnetic hybridized microsphere adsorption material.

The invention relates to the technical field of side stands of motorbikes and in particular relates to a method for manufacturing a sturdy and durable side stand. The method comprises the following steps: blank processing, blank treatment, blank cutting, workpiece grinding, workpiece treatment, coating selection, coating preparation and workpiece spraying. Due to the addition of talcum powder, a modified polyurethane dispersant, powdered iron oxide red, mica powder and aluminum paste, the coating has excellent high temperature resistance, wear resistance and hard texture, can be softly combined with the application surface and has long service life, so that the sturdy and durable characteristics of the side stand are improved.

The invention discloses a welding method of a fire-fighting pressure reduction pump. The method is characterized by comprising the following steps: firstly, before welding, the welding position must be cleaned up, the welding metal at the original cracking portion is taken away, polishing through an alternating phase polishing machine or carbon arc air gouging is used, and after the cracking portion is gouged, ferric oxide must be cleaned up through polishing; secondly, before welding, preheating is carried out, preheating is carried out on the welding position, intermittent welding, dispersed welding or after-welding hammering is adopted, a hammer is used for knocking the welding line and the welding line edge, and after complete welding, the hammer is used for knocking until the welding line is cooled; and thirdly, it is ensured that the fire-fighting pressure reduction pump and a fixed pipeline welding must be thoroughly welded, and a back plate is additionally arranged on the outer side of the pipeline.

The invention discloses a high-utilization-rate ferric oxide processing device which includes a pot body (2) arranged on a support (1). A waste gas discharge outlet (7) is arranged on the top of the pot body (2). A material feeding inlet (3) is formed on the pot body (2). A material discharging outlet (4) is disposed on the bottom of the pot body (2). The device is characterized by also comprising a material transporting channel (5) and a gas inlet pipe (6), wherein the material transporting channel (5) is disposed on an inner side wall of the pot body (2) and the gas inlet pipe (6) is disposed on the bottom of the pot body (2). A material feeding end of the material transporting channel (5) is directly faced to the gas inlet pipe (6). A material discharging end of the material transporting channel (5) is arranged on an upper part of the inner side wall of the pot body (2). By means of the device, deposited iron sheets are transported to the top of the pot body through the material transporting channel for being continuously subjected to a reaction, thereby effectively increasing utilization rate of raw materials.