106results about How to "Has a corrosion inhibitory effect" patented technology

The invention provides a mud synthesizing fuel which includes mud, coal powder and the materials of plant fiber. The mud includes the mud generated by the treatment and drainage of living sewage, river mud as well as the mud generated during the industrial treatment process of paper making or dejection; besides, the following pre-treatments are carried out on the mud: (1) a microorganism inoculant is added in the mud for processing; (2) an odour removing agent is added in the mud after being treated by step (1) for processing. When pre-treatments are carried out on the mud in the mud synthesizing fuel disclosed in the invention, the microorganism inoculant and the odour removing agent are added for processing, thus being capable of removing the metals and the peculiar smells in the mud, thereby reducing the pollution to the environment when the fuel is burnt.

The invention discloses a biodegradable non-phosphorous anti-scale corrosion inhibitor and a preparation method thereof. The biodegradable non-phosphorous anti-scale corrosion inhibitor comprises, by mass, 10-20% of polyaspartic acid, 5-20% of polyepoxysuccinic acid, 30-60% of copolymers, 5-10% of zinc salt, 2-5% of fluorescent tracers and the balance water, wherein the molecular weight of the copolymers ranges from 2000-10000, and the copolymers are maleic anhydride/acrylic acid/ acrylic acid oxylactone/2-acrylamide-2-methylpro panesulfonic acid quaternary copolymers. The non-phosphorous anti-scale corrosion inhibitor is used for stainless steel condenser circulating cooling water systems of thermal power plants, is non-phosphorous, non-toxic, easily biodegradable, free from environmental problems and unlimited in discharge, and is capable of controlling carbon steel corrosion rate to be smaller than or equal to 0.075mm/a, controlling corrosion rate of copper, copper alloy and stainless steel to be smaller than or equal to 0.005mm/a, controlling dirt deposition rate to be smaller than or equal to 15mcm and controlling scale inhibition rate to be larger than or equal to 80%.

A squama type cold galvanizing aluminum coating used on the surface of steel structure and containing VCI (Vapor corrosion inhibitor). Besides, the invention also provides a VCI squama type cold galvanizing aluminum complex coating system on the surface of steel structure and prepared from the coating.

The invention provides an anti-scaling disperser, which comprises 2-acrylamide-2-methyl propanesulfonic acid copolymer, sodium lignosulfonate, tannic acid, sodium humate and water. 78{>The invention also provides a method for using the anti-scaling disperser by compounding with organic phosphate and zinc salts, or compounding with zinc chloride to 8-12%.

The present invention belongs to the technical field of water treatment, relates to a multi-copolymer used for recycled water for industry and a preparation method and use thereof, particularly use as a scale and corrosion inhibitor, and especially as a low-phosphorus environmental-friendly scale and corrosion inhibitor. The multi-copolymer is obtained by copolymerization of a carboxyl-group-containing unsaturated organic monomer, an ester-group-containing unsaturated organic monomer and a sulfonic-acid group-containing unsaturated organic monomer, and the limiting viscosity number of the multi-copolymer is 0.035-0.055dL / g. The multi-copolymer has scale inhibition, dispersion, corrosion resistance, temperature resistance and other properties, can be used as a scale inhibition dispersant, especially as the low-phosphorus environmental-friendly scale and corrosion inhibitor, and can be used in circulating cooling water systems, oil field water injection systems, seawater desalination and other fields.

The invention provides a reverse osmosis membrane scale inhibitor. The reverse osmosis membrane scale inhibitor mainly comprises organic phosphonic acid, organic carboxylic polymers, sulfonic copolymers, a quaternary phosphonium salt, and methane dithiocyanate. The invention further provides an application of the reverse osmosis membrane scale inhibitor in scale inhibition of a reverse osmosis system. When used for reverse osmosis water treatment, the reverse osmosis membrane scale inhibitor provided by the invention can effectively eliminate membrane pollution caused by deposition of CaCO3, CaSO4, SiO2 and silicate; working efficiency of the reverse osmosis system is improved, service lives of the reverse osmosis membrane and reverse osmosis equipment are prolonged, and reverse osmosis cost is reduced; the reverse osmosis membrane scale inhibitor is compatible with various common flocculating agents such as polyaluminum chloride and cationic polyacrylamide; and a pH value is not required to regulate.

A preparation method of monodisperse high crystallinity copper powder is provided, which relates to a method for preparing copper powder used in conductive paste by using cupreous compound, in particular to a preparation method of the copper powder used in the conductive paste that is applicable to ceramic electronic components with a plurality of layers. The method is characterized in that: cupric salt and copper oxide or copper hydroxide are taken as raw materials, a reductant and a reaction control agent are added into an alcohol-water system and fully mixed, reaction occurs under the conditions that the pH of the solution is 6.0 to 7.5 and the temperature is 50 to 95 DEG C, inert gas is used as carrier gas during the reaction process and the flux of the carrier gas is 50 to 500 ml/min question mark L, then solid-liquid separation, washing and drying are carried out to an obtained product after heat preservation for 1 to 6 h, and the monodisperse high crystallinity copper powder is obtained. The copper powder prepared by the invention is in spheroid shape or polyhedron shape, of which the grains are monodisperse and non-aggregating and have smooth surface, good crystallinity and certain antioxidant capacity. The size distribution of the copper powder is narrow and the average grain size can be regulated between 0.1 and 10 um.

The invention discloses a foam-type lotion for preventing and treating hoof disease of dairy cow. The lotion includes, by weight, 0.1-30 parts of glutaraldehyde, 0.1-20 parts of quaternary ammonium salt, 1-15 parts o a foaming agent, 0.5-5 parts of a foam stabilizer, 0.1-5 parts of a pH regulator, 0.01-1 part of a coloring agent, and 5-20 parts of water. The foam-type lotion can uniformly coat the surface of hoofs of dairy cow and effectively prevents and treats the hoof disease of dairy cow. The lotion has good sterilizing effect, is high in curative rate, is environment-friendly and has significant management distinguishing effect.

The invention discloses a compound cow hoof bath lotion. The compound cow hoof bath lotion comprises the following components in parts by weight: 1-45 parts of a sterilizing agent, 1-40 parts of a hoof protection agent, 1-20 parts of a plant extract product, 1-20 parts of an astringent, 1-15 parts of a synergist, and 10-30 parts of deionized water. The protect can be used for preventing generationof cow hoof disease, disease condition can be controlled while disease happens, the compound cow hoof bath lotion does not contain formaldehyde, excitant and carcinogenicity on people and livestock can be avoided, and environment pressure due to hoof bath by single usage of copper sulphate can be alleviated through direct discharge. The invention also discloses a preparation method of the compound cow hoof bath lotion, which has the advantages of simple operation and easy acquisition of raw material, and is suitable for large-scale production.

The invention discloses a preparation method of a microcapsule with a double-coated structure. The preparation method comprises the following steps: (1) reacting styrene to obtain a PS prepolymer, adding an emulsifier to a repairing solution, adding the PS prepolymer to obtain an emulsion, adding resorcinol, performing a reaction, and performing separation to obtain a PS/repairing solution microcapsule; (2) dissolving aniline in water, adding the PS/repairing solution microcapsule, allowing the aniline to swell into PS/repairing solution particles;, adding potassium persulfate, dropwise addinghydrochloric acid, and performing polymerization to obtain a polystyrene/polyaniline/repairing solution microcapsule; (3) adding the polystyrene/polyaniline/repairing solution microcapsule to an aqueous solution of CaCl2 and an aqueous solution of Na2CO3, performing mixing to precipitate calcium carbonate in order to obtain a multilayer microcapsule, and removing the polystyrene template to obtain a calcium carbonate-coated polyaniline double-layer self-repairing microcapsule; and (4) adding the calcium carbonate-coated polyaniline double-layer self-repairing microcapsule to tung oil, performing stirring and reacting, filtering the obtained system, and centrifuging and washing the obtained material to obtain the calcium carbonate/polyaniline/tung oil microcapsule.

The invention discloses a novel reverse-osmosis scale inhibitor which comprises the following raw materials in parts by weight: 2-8 parts of sodium citrate, 33-45 parts of hydrolytic polymaleic anhydride, 28-37 parts of polyepoxysuccinic acid salt, 9-15 parts of urotropine, 13-20 parts of polylactic acid, and 40-50 parts of water. A preparation method comprises the following steps: adding sodium citrate, hydrolytic polymaleic anhydride, polyepoxysuccinic acid salt, urotropine and half of water into a reaction kettle, heating to 40-50 DEG C, and stirring for uniformly dissolving; dissolving polylactic acid with the rest water to obtain a polylactic acid solution; heating the materials in the reaction kettle to 70-75 DEG C, dropwise adding the polylactic acid solution, and keeping the temperature for 3-4h after the dropwise adding is finished; and cooling to room temperature so as to obtain the novel reverse-osmosis scale inhibitor. The novel reverse-osmosis scale inhibitor disclosed by the invention has the scale inhibition rate being up to 95%, is small in adding amount, environmentally friendly, stable in property, and long in storage period, and can be used for solving the problems that existing reverse-osmosis inhibitors mainly are foreign products and are limited in treatment capacity, complex in synthesis, relatively high in production cost, and the like in the prior art.

The invention discloses a scale inhibitor with soda ash mother liquor and belongs to the technical field of fine chemical products. The scale inhibitor comprises the following components in part by mass: 50 to 70 parts of HK-101 scale inhibitor, 5 to 15 parts of sodium gluconate, 10 to 20 parts of polyepoxysuccinic acid and 3 to 7 parts of pH regulator, wherein the HK-101 scale inhibitor is prepared through crylic acid, maleic acid, hydroxy-propyl acrylate, an initiator and a molecular weight regulator. The scale inhibitor applied to the soda ash mother liquid can prolong the scaling time of calcium ions and magnesium ions in the mother liquid, reduces the chemical cleaning frequency of a soda ash mother liquid production system from 2 to 4 times per year to 1 time per 2 to 3 years, guarantees long-period and stable operation of soda ash mother liquid production, greatly reduces damage to equipment caused by chemical cleaning and does not influence the quality of the soda ash product.

The invention discloses an antibacterial-enhanced aqueous aluminum pigment with zinc oxide/silver compound powder. The antibacterial-enhanced aqueous aluminum pigment is characterized by being prepared from the following raw materials in parts by weight: 40 to 45 parts flaky aluminum powder, 100 to 110 parts of isopropyl alcohol, 0.3 to 0.35 part of copper sulfate crystal, a proper amount of deionized water, 4 to 4.5 parts of phenolic ether type phosphate, a proper amount of absolute ethyl alcohol, 9 to 10 parts of tetraethoxysilane, 6 to 7 parts of vinyltriethoxysilane, 9 to 10 parts of ammonia water with the weight concentration of 20 percent, 200 to 220 parts of butyl acetate, 5 to 6 parts of crylic acid, 5 to 6 parts of methacrylic acid, 0.6 to 0.65 part of dibenzoyl peroxide, 13 to 15 parts of propylene glycol monomethyl ether, 2 to 3 parts of zirconium phosphate, 4 to 5 parts of nano-zinc oxide, 2 to 3 parts of carboxymethylcellulose, 0.8 to 1 part of sodium polyacrylate, 2 to 3 parts of glycerinum and 4 to 5 parts of a silver nitrate solution with the weight concentration of 10 percent. The product disclosed by the invention can be well dispersed in finished products such as an aqueous coating and ink, and is high in antibacterial property.

A gas pipeline composite reinforcement structure and a construction method thereof. The reinforcement structure is wrapped around the gas pipeline to be repaired, including the main reinforcement and auxiliary parts. The primer layer bonded to the gas pipeline is composed of additives with effective corrosion inhibition effect added to the primer layer; the auxiliary parts include reinforcing keel belts and/or special reinforcing parts that meet the special requirements of the pipeline. The construction steps are: measure the thickness of the main body of the repaired pipeline, and perform surface treatment and plugging treatment; process special parts of the pipeline or fix special reinforcements for special parts of the pipeline; apply stainless steel keel belts; coat the primer layer, Lay the working layer and reinforcement layer; bond the protective layer. The reinforced structure of the invention is light in weight, high in specific strength, low in cost, convenient in construction, has corrosion inhibition effect and excellent anticorrosion performance. There is no open flame, no high temperature, and no impact on the pipeline.

The invention provides a plant type composite efficient corrosion inhibitor. The plant type composite efficient corrosion inhibitor is prepared from the following raw materials in percentage by mass: 12 to 66.0 percent of plants, 5.0 to 16.0 percent of sodium molybdate, 1.5 to 12 percent of sodium gluconate, 3.5 to 25 percent of sodium tartrate, 0 to 23 percent of zinc sulfate and 4.0 to 23.0 percent of monopotassium phosphate. The corrosion inhibitor disclosed by the invention is high in corrosion inhibition capability and can achieve a corrosion inhibition effect on a chlorine salt type snow-melting agent. After the corrosion inhibitor is added, the corrosion of the chlorine salt type snow-melting agent to metal and concrete and the harm to vegetation can be reduced. The corrosion inhibitor is mainly prepared from plants, is non-toxic, and is a very efficient and environment-friendly corrosion inhibitor. The invention further provides a preparation method and application of the plant type composite efficient corrosion inhibitor.

As a corrosion inhibitor of copper, a type of water-soluble bis-Schiff base potassium salts have a chemical structural formula described in the description, wherein in the structural formula, C1, R1=-OK, R2=R3=H; C2, R2=-OK, R1=R3=H; C3, R3=-OK, R1=R2=H. As the corrosion inhibitor, the type of water-soluble bis-Schiff base potassium salts have a corrosion inhibition effect for the metal copper in a sodium chloride solution with a mass ratio of 3.5%; due to the chemical structure of the organic salt, the water solubility of the corrosion inhibitor is greatly improved, and the corrosion inhibition effect of the corrosion inhibitor is further facilitated to be improved; furthermore, a synthesis method and a separation method of the water-soluble bis-Schiff base potassium salts are simple, and raw materials are conveniently obtained.

The invention relates to an electrolyte and a method for preparing adiponitrile by electrolytic acrylonitrile dimerization. The electrolyte comprises 2-7 wt% of acrylonitrile, 0.1-5 wt% of imidazole or pyridine ionic liquid, 0.1-5 wt% of EDTA or EDTA salt, 5-15 wt% of phosphate and the balance water, and the pH value range is 7-10. Electrolysis is carried out in a membrane-free electrolytic cell,anode materials of the membrane-free electrolytic cell are carbon steel or graphite, and cathode materials are cadmium or lead, the temperature of the electrolyte is 20-60 DEG C, and the linear speedof the electrolyte between the electrode plates is larger than 1 m.s <-1>, continuous electrolysis is carried out under the condition that the current density is 500-4000 A.m <-2>, and oil-water separation, rectification and other processes are carried out to obtain adiponitrile products. Compared with the prior art, ionic liquid is adopted as the support electrolyte, so that the yield and currentefficiency of adiponitrile can be improved, and the corrosion of the anode material and the crude product separation equipment can be greatly reduced; and the property of the ionic liquid is stable,so that the loss of the electrolyte can be greatly reduced.

The invention provides a novel efficient composite guanidyl papermaking bactericide, and belongs to the technical field of papermaking bactericide production. The bactericide comprises following components in parts by weight: 10-30 parts of a guanidyl polymer, 5-15 parts of 2-octyl-2H-isothiazol-3-one, 150-450 parts of diethylene glycol, 0.5-1.5 parts of dodecyl dimethyl benzyl ammonium chloride,0.3-1.8 parts of hydroxymethyl cellulose and 0-100 parts of potassium hydrogen phthalate, wherein the guanidyl polymer is polyhexamethylene biguanidine hydrochloride. Polyhexamethylene biguanidine hydrochloride is a broad-spectrum antibacterial product, has killing capacity on Gram-positive bacteria, Gram-negative bacteria, fungi and saccharomycetes and can be used for producing and manufacturingantibacterial paper for health products to replace silver-containing Kuerxin paper, and meanwhile, a polyhexamethylene biguanidine hydrochloride solution also improves physical properties and hygroscopic property of the paper and strength and breathability of the paper stained with water, so that the solution is a papermaking bactericide with excellent performance; the bactericide is one efficientand broad-spectrum composite type TS-302 papermaking bactericide under the synergistic effect of the components.