55 results about "Magnesium perchlorate" patented technology

The invention relates to a sludge curing agent and an application thereof in sludge curing treatment, and belongs to the field of sludge treatment. In order to overcome the technical defect of poor curing effect of the existing sludge curing agent in the prior art, the sludge curing agent which is low in cost and good in curing effect is provided by the invention. The sludge curing agent comprises the following components in parts by weight: 25 to 45 parts of coal ash, 20 to 30 parts of swollen resin, 15 to 20 parts of cement, 7 to 9 parts of water glass, 10 to 12 parts of kieselguhr, 10 to 12 parts of quick lime, 6 to 9 parts of sodium hydroxide, 3 to 8 parts of aluminum sulfate, 8 to 10 parts of polyacrylamide, 6 to 8 parts of magnesium perchlorate and 5 to 15 parts of quartz sand. The sludge curing agent has the advantages of high curing efficiency and large hardness when being applied to the sludge curing treatment. Thus, the sludge curing agent is very suitable for the sludge curing treatment for water conservancy.

An improved electrolyte for a cell having an anode comprising magnesium or magnesium alloy. The cell's cathode may desirably include iron disulfide (FeS2) as cathode active material. The improved electrolyte comprises a magnesium salt, preferably magnesium perchlorate dissolved in an organic solvent which preferably includes acetonitrile or mixture of tetrahydrofuran and propylene carbonate. The electrolyte includes an additive to retard the buildup of deleterious passivation coating on the magnesium anode surface, thereby enhancing cell performance. Such additive may preferably include 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4), 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6), lithium hexafluorophosphate (LiPF6), or aluminum chloride (AlCl3)

The invention discloses a novel preparation method of netaglinide oxazolone shown in the formula (IV), which comprises the following steps: under the action of a catalyst A, enabling 3-fluorine-4-morpholine phenyl isocyanate shown in the formula (I) to react with (R)-epoxy chloropropane to obtain a compound (II), wherein the catalyst A is magnesium diiodide, magnesium dibromide, magnesium dichloride, magnesium perchlorate or magnesium trifluoromethanesulfonic acid; enabling the compound (II) to react with sodium azide to obtain a compound (III); reducing the compound (III) by hydrogenation, and then, acetylating the reduced compound (III) to obtain the compound (IV). In the invention, the low-cost and environment-friendly catalyst (Lewis acid magnesium) is used for catalyzing the cycloaddition reaction of the (R)-epoxy compound and the isocyanate to establish a mother nucleus structure of the netaglinide oxazolone by one step, thus the prepared netaglinide oxazolone has high stereoselectivity, does not need rigorous operation conditions, such as low temperature, no water, no oxygen and the like, has the advantages of moderate reaction conditions, simple and convenient operation, high utilization ratio of atoms, environment protection, low production cost and the like, and is suitable for industrialized production.

A process for preparing biological ester / cellulose acetate composite membrane for sampling the toxic organic pollutants in environment monitor and removing them from water includes such steps as dissolving the cellulose acetate in solvent, adding biological ester, and preparing membrane by the L-S phase transfer method. The membrane contains cellulose acetate, dioxane, acetone, magnesium perchlorate, and neutral ester in a certain proportion.

[Problems] A coating composition preferably used for forming a hard coating by being applied and cured on a light-transmitting member such as a highly refractive plastic lens or a highly refractive photochromic plastic lens having a function for developing a color, the coating composition markedly improving weather resistance (preventing discoloration) while sustaining high refractive index, scratch resistance and excellent adhesion to the optical material.[Means for Solution] The coating composition comprises (A) a fine granular metal oxide containing titanium oxide and (B) a fine granular metal oxide containing titanium oxide having dissimilar properties as selected by a specific light irradiation test and, further, contains (C) an epoxy group-containing organosilicon compound such as γ-glycidoxypropyltrimethoxysilane, (D) water, (E) an organic solvent such as methyl alcohol, and (F) a curing catalyst such as aluminum acetyl acetonato or magnesium perchlorate at specific ratios.

The invention discloses a gasoline additive for an environmental protection and energy-saving vehicle. The gasoline additive comprises the following components in parts by weight: 12-18 parts of nitromethane, 5-8 parts of boron, 2-5 parts of pyridine, 6-8 parts of didodecyldimethylammonium, 3-6 parts of carbon fluoride, 1-3 parts of magnesium perchlorate, 2-4 of BHT (butylated hydroxytoluene), 1-3 parts of light calcium carbonate, 4-7 parts of dimethyl acetal, 4-7 parts of 3-methyl-1-butylene, 16-21 parts of methyl tert-butyl ether, 6-9 parts of 2,2,3-triptane, 1-3 parts of cerium oxide, 1-3 parts of beryllium carbide, 5-8 parts of N,N-dimethylaniline and 2-4 parts of amino acid palladium complex. The additive can effectively improve the gasoline quality, increase the gasoline octane number, enhance the fire performance of fuels, can be completely burned together with the fuels without generating precipitation or residues, reduce the tail gas exhaust pollution of motor vehicles, reduce the running cost of the motor vehicles, and has the obvious oil saving effect.

The invention discloses a hydrogen peroxide stabilizer, the mass percentage of which is composed of: 15-30% of organic phosphonic acid; 10-15% of magnesium salt; 55-75% of distilled water; the sum of each component is 100%. Magnesium salts include magnesium chloride, magnesium sulfate, magnesium acetate, magnesium nitrate or magnesium perchlorate; the organic phosphonic acid has the structure of general formula (1), wherein R represents a substituent, which is an alkyl group or a heteroatom-substituted alkyl group ; n represents the number of phosphonic acid groups connected to the substituent R, and n=2-5. Under the synergistic action of organic phosphonic acid and magnesium salt, the stabilizer of the invention can effectively realize the stabilization of hydrogen peroxide under strong alkaline conditions.

Disclosed is a coating composition appropriately usable for forming a hard coat film that is obtained by applying the composition onto a light-permeable member, such as a plastic lens having a high refractive index or a photochromic plastic lens having a color-developing function and a high refractive index, and hardening. This coating composition exhibits an extremely improved weather resistance (prevention of discoloration) while sustaining a high refractive index, a good scratch resistance and an excellent adhesiveness to an optical base. Specifically disclosed is a coating composition, comprising: titanium oxide-containing metal oxide microparticles (A) together with titanium oxide-containing metal oxide microparticles (B), provided that the titanium oxide-containing metal oxide microparticles (A) and the titanium oxide-containing metal oxide microparticles (B) have been selected through a specific light irradiation test and show different properties; an epoxy group-containing organosilicon compound (C) such as ?-glycidoxypropyltrimethoxysilane; water (D); an organic solvent (E) such as methyl alcohol; and a hardening catalyst (F) such as aluminum acetylacetonate or magnesium perchlorate, each in a specific amount.

The invention relates to a packing material for a micro-adsorption column for drying and / or purification of dissolved organic or biological analytes, such as toxins, antibiotics, vitamins, hormones, pesticides and similar, containing at least one drying agent which contains magnesium sulphate and at least one further drying agent selected from the group comprising aluminium oxide, calcium chloride, calcium hydride, calcium oxide, calcium sulphate, potassium hydride, silica gel, copper sulphate, magnesium oxide, magnesium perchlorate, molecular sieves, sodium hydroxide, phosphorus pentoxide, sulphuric acid on silica, phosphorus pentoxide on silica and 0.5 to 90 wt. % of a naturally-occurring or synthetic support with large internal surface such as zeolite, diatomic earths, bentonite, silicon dioxide or similar. The invention further relates to a micro-adsorption column packed with the above and use thereof.

The invention relates to a carbon dioxide content determination apparatus. The apparatus comprises a reaction device, the reaction device comprises a reaction bottle, the reaction bottle is provided with a separating funnel having a piston, an alcohol burner is arranged under the reaction bottle, a device for absorbing carbon dioxide in air is arranged in front of the reaction bottle, and an impurity removal device, a carbon dioxide absorbing device and a water absorbing device are sequentially arranged behind the reaction bottle. The apparatus has the advantages of simplicity, easy operation, realization of the assembling completion in most laboratories, and wide application range. The carbon dioxide content result determined through using the apparatus is stable and reliable, and has a good precision and a good accuracy; and simultaneously anhydrous calcium chloride is used to substitute anhydrous magnesium perchlorate, so the measure cost is effectively reduced, and the apparatus is economic and practical.

The invention discloses a sulfur measuring system, comprising a combustion tube (3), a drying tube assembly (5) filled with a magnesium perchlorate drying agent and a pre-dewatering device (4) arranged between the combustion tube (3) and the drying tube assembly (5), wherein the pre-dewatering device (4) comprises a nafion tube (41) and a shell (42) covering outside the nafion tube (41), the nafion tube (41) is connected between the outlet end of the combustion tube (3) and the air inlet end of the drying tube assembly (5), and the shell (42) is provided with an exhaust port and an air inlet for introducing dry gas. According to the sulfur measuring system, the nafion tube is used in the pre-dewatering device, and the nafion material is only used for bringing away internal moisture through external drying, so that the moisture flowing into the drying tube assembly is effectively reduced, the failure frequency of the magnesium perchlorate drying agent in the drying tube assembly is reduced, and the test cost is reduced.

The invention discloses a high-adsorbability environment-friendly hollow glass drying agent. The high-adsorbability environment-friendly hollow glass drying agent is prepared from 80% to 90% of attapulgite powder, 2% to 6% of magnesium perchlorate, 0.2% to 0.3% of quaternary alkyl-ammonium-based surface active agent, 2% to 6% of sodium aluminate and 4% to 8% of cationic polyacrylamide. The invention discloses a preparation method of the high-adsorbability environment-friendly hollow glass drying agent at the same time. The drying agent is a hollow glass drying agent with high adsorbability and an environmental protection property, the adsorption performance is efficient and long, and the environmental protection property is good.

The invention discloses a hollow glass drying agent and a preparation method thereof. The drying agent is prepared from the following raw materials: diatomite, straw powder, foam aluminum, magnesium perchlorate, polyacrylamide, aluminum sulfate, sodium hexametaphosphate, titanium dioxide, polyethylene, a surfactant and de-ionized water. The preparation method comprises the following steps: mixing and combusting the straw powder and the diatomite to obtain mixture ash; mixing and grinding the foam aluminum, the polyacrylamide, the titanium dioxide, the polyethylene and the de-ionized water to obtain a first mixture; adding the magnesium perchlorate, the aluminum sulfate, the sodium hexametaphosphate and the surfactant into a reaction kettle; heating to 120 DEG C to 180 DEG C and adding a first mixture; stirring and raising the temperature to 340 DEG C to 450 DEG C; adding the mixture into a double-screw extruder and extruding to obtain grains. The drying agent disclosed by the invention has the advantages of low cost, large specific surface area and large static water absorption amount, is not easily influenced by temperature and humidity and has a stable absorption capability. A preparation process is simple, and the components are more tightly fused and are not easy to disintegrate.

The invention relates to a method for analyzing and detecting oxygen and nitrogen. Oxygen and nitrogen content of steels, nonferrous metals and novel materials can be determined by an infrared detector and a thermal conductivity detector in inert atmosphere by pulse heating to decompose the sample. The analyzing process includes pulse heating the metal powder to be measured to fuse at high temperature in the presence of nickel foil fluxing agent, subjecting the released mixed gases such as CO and N2 to a catalytic reaction in the presence of tombarthite copper oxide in a reformer to form CO2, N2 and H2O, sending to the infrared detector by a high purity carrying gas to determine the oxygen percentage content, absorbing CO2 and H2O by soda asbestos and magnesium perchlorate, and sending to the thermal conductivity detector to determine the nitrogen content. The method has convenient operation and high precision of detection and analysis.

The invention relates to a positive material for a magnesium cell, a preparation method of the positive material, and a magnesium cell. The positive material for the magnesium cell comprises ferric oxide and a carbon source with a mass fraction ratio of (80:20) to (95:5). The preparation method comprises preparing materials according to the ratio, and mixing uniformly; adding the mixed material into a corundum agate jar with a ball-to-material ratio of 5:1; adding absolute ethanol as a dispersing agent; carrying out ball milling by a planetary ball mill at a speed of 300 to 500 rotations per minute for 4 to 6 hours to obtain a slurry mixture; drying the slurry mixture; and grinding the mixture into fine powder by the ball mill at a speed of 300 to 500 rotations per minute. The positive material is made into a positive electrode of the magnesium cell; a pure magnesium or magnesium alloy material is made into a negative electrode; and an electrolyte contains one or more of magnesium perchlorate, nitrates or acetates. The positive material has the advantages of abundant sources, no pollution to the environment, and low cost; and the prepared magnesium cell not only is low in cost and environment-friendly, but also has stable discharge and high specific discharge capacity.

The invention discloses ammonium perchlorate, belonging to the field of inorganic salt. The technical scheme is as follows: ammonium perchlorate is the key component, ammonium perchlorate is coated by ethylenediamine and KH792, the granularity D4,3 of ammonium perchlorate is 3-7 micrometers, ethylenediamine is 0.1%-0.5%, and KH792 is 0.05%-0.1%; and ethylenediamine is analytically pure. Fine-grained ammonium perchlorate is processed mainly by an airstream pulverization method, for the reason of the characteristics of the technique, more edges and defects exist on the surface of ammonium perchlorate, the ammonium perchlorate granules are easy to collide with each other and generate hot points, and the friction sensitivity of the compound solid propellant is increased. Ethylenediamine and KH792 are used as surface active agents for coating the surface of ammonium perchlorate, thus, the defects on the surface of ammonium perchlorate can be reduced, and the influence on the friction sensitivity of the compound solid propellant is lowered.

The invention discloses a novel vacuum insulated panel. The novel vacuum insulated panel comprises a gas barrier layer and a core material, the heat conductivity coefficient is 0.001-0.002 W / m*K, thegas barrier layer is prepared from a plurality of layers of composite thin-film materials, the core material is prepared from hollow ceramic micro-beads, glass fibers, nano silicon dioxide, porcelainpowder, silicon carbide, a gas adsorbent and a drying agent, the porcelain powder is prepared from a low-temperature porcelain powder body, a medium-temperature porcelain powder body and a high-temperature porcelain powder body, the gas adsorbent is one selected from silica gel, aluminum oxide, a molecular sieve and natural clay, and the drying agent is one or more selected from phosphorus pentoxide, anhydrous calcium chloride, soda lime, quick lime, NaOH solid, montmorillonite, magnesium perchlorate and active anhydrous copper sulfate. The prepared novel vacuum insulated panel has the advantages of being relatively high in fireproof performance, relatively low in heat conductivity coefficient, good in corrosion resistance, waterproof, windproof, excellent in mechanical property, long in service life and not liable to combust.

The invention provides a treatment process used for wood dimension stabilization. The treatment process solves the technical problems that an existing treatment method has too simple steps, cannot guarantee wood dimension, causes poor product quality and the like. The treatment process used for wood dimension stabilization comprises the following steps of: a, removing wood skin; b, drying the wood by a drying system at a drying temperature being 38-42 DEG C, and enabling moisture content of the wood to be 16-18%; c, feeding the wood into a reaction tank, introducing acetyl chloride and anhydrous magnesium perchlorate into the reaction tank, pressurizing the reaction tank to 0.6-0.8 MPa, taking out the wood from the tank after keeping the pressure for 2-3 hours; d, keeping for 12-18 hours at a temperature being 60-75 DEG C; and e, drying the wood again by the drying system at a drying temperature being 52-56 DEG C, and enabling the moisture content of the wood to be 13-14%. The treatment process further has the advantage of good product quality.

The invention belongs to the technical field of determination of gaseous hydrocarbon hydrogen isotope composition in a mineral inclusion, and particularly discloses a device and a method for extracting gaseous hydrocarbon hydrogen isotope composition in a mineral inclusion. According to each path of helium, a water trap filled with magnesium perchlorate is used for absorbing and drying trace waterpossibly existing in the helium, so that the influence of the trace water in carrier gas on a gaseous hydrocarbon hydrogen isotope composition test result is avoided. On-line continuous flow mode isadopted, and a mineral inclusion bursting device, a methane oxidation and product water collection device and a stable isotope mass spectrometer are connected; online heating burst of minerals in a helium flow environment, online oxidation of methane, online collection of oxidation product water and electric heating release of water enter a stable isotope mass spectrometer to be tested, and compared with a traditional offline method, the sample amount is greatly reduced, so that the beneficiation workload and the scientific research cost are effectively reduced, and the scientific research efficiency is improved.

The present invention relates to synthesis of organic material, and is especially process of synthesizing 3-arylallyl ether. Inside solvent of nitromethane, dichloromethane, ethyl cyanide, trichloromethane, toluene or tetrahydrofuran, and in the presence of catalyst of ferric chloride, indium chloride, zinc dichloride, copper bromide, ferric perchlorate or magnesium perchlorate, aromatic aldehyde and allylalkoxyl silane are reacted to produce 3-arylallyl ether. Adding trimethylchlorosilane into indium chloride catalyst can result in even high catalytic effect. The present invention has the advantages of simple operation, high safety, environment friendship, etc. and the synthesized organic intermediate has wide application.

The invention discloses a method for preparing a filter medium for removing polybrominated diphenyl ether from drinking water, which comprises the following steps of: a) mixing raw materials containing active carbon powder, ultrahigh molecular weight polyethylene powder and pore forming agent in a weight ratio of 100-300: 200-400: 80-160; b) pressing the obtained mixture in a die, and sintering and cooling the mixture to obtain a filter medium for later use; c) dissolving cellulose acetate into acetone, adding magnesium perchlorate and triolein additives into the solution, and putting the mixed solution into a thermostatic oscillation box; d) soaking the filter medium for later use into the mixed solution, and then volatilizing the acetone therein; e) soaking the filter medium for later use into a thermostatic water bath of 28 to 32 DEG C; and f) drying the filter medium for later use. The prepared filter medium has the advantages of high rate of removing the PBDEs from the water, simple and convenient use and low cost, and is suitable for treating household terminal drinking water; and the rate of removing the PBDEs from the drinking water is over 95 percent.

The invention relates to the technical field of a battery electrolyte, in particular to a magnesium battery electrolyte. The electrolyte comprises the constitutes based on parts by weight: 2-8 parts of phenoxyl-based magnesium-aluminum hydrogen complex, 3-9 parts of dialkyl-based magnesium bromide, 2-6 parts of magnesium perchlorate, 1.2-3.6 parts of magnesium acetate, 4.5-8.5 parts of aminodiphenylamine, 2.5-8 parts of 3, 4-dimethoxyaniline, 10-12 parts of m-Hydroxy thiophenol, 8-15 parts of 3-diethoxy thiophenol and ether solvent. In a magnesium battery provided by the invention, a traditional high-cost magnesium perchlorate can be used as an electrolyte, relatively low-cost acetate or magnesium perchlorate or a mixed solution of several salts also can be used, and the cost is greatly reduced; meanwhile, almost zero pollution is generated in the magnesium battery from production to application, and the magnesium battery conforms to green and environmental-friendly purpose of modern society; and the magnesium battery electrolyte is more excellent in performance and lower in cost, is easier to prepare and is used as the electrolyte of a rechargeable magnesium battery.

The invention discloses a solid rocket ramjet adjusting device and an engine propellant thereof. The engine propellant comprises the following components: 25-40 parts by mass of an oxidant, 15-30 parts by mass of an adhesive, 20-40 parts by mass of a metal powder fuel, 2-10 parts by mass of a combustion rate catalyst and 2-8 parts of an additive, wherein the oxidizing agent comprises perchlorate,such as ammonium perchlorate, magnesium perchlorate, lithium perchlorate, sodium perchlorate, barium perchlorate and calcium perchlorate. According to the invention, a flow adjusting range can be widened, working errors are reduced, and working stability and reliability are guaranteed.

The invention discloses a gas drying device for a micro-coulometry total-chlorine analyzer. The gas drying device comprises a concentrated sulfuric acid drying cylinder and a magnesium perchlorate drying tube which are serially connected, wherein the concentrated sulfuric acid drying cylinder comprises a cylinder body, a gas inlet pipe and a gas outlet; concentrated sulfuric acid is contained in the cylinder body; the magnesium perchlorate drying tube comprises a tube body, an ingress pipe, an eduction pipe and a tube plug, magnesium perchlorate is contained in the tube body, the lower part of the cylinder body is cylindrical, and the upper part of the cylinder body is spherical. The gas drying device is mainly used for micro-coulometry measurement of total chloride content in petrochemical products, and is capable of effectively removing water in a sample gas by drying the sample gas for two times; the detection sensitivity, accuracy and repeatability of the total chlorine measurement are remarkably improved, and the effective detection of a low-chlorine sample can be realized.

The invention discloses a high-adsorbability environment-friendly hollow glass drying agent. The high-adsorbability environment-friendly hollow glass drying agent is prepared from 80% to 90% of attapulgite powder, 2% to 6% of magnesium perchlorate, 0.2% to 0.3% of quaternary alkyl-ammonium-based surface active agent, 2% to 6% of sodium aluminate and 4% to 8% of cationic polyacrylamide. The invention discloses a preparation method of the high-adsorbability environment-friendly hollow glass drying agent at the same time. The drying agent is a hollow glass drying agent with high adsorbability and an environmental protection property, the adsorption performance is efficient and long, and the environmental protection property is good.

The invention discloses an antibacterial hydrophilic polypropylene microporous membrane, the raw material of which comprises: polypropylene, ethylene-vinyl alcohol copolymer, maleic anhydride grafted polypropylene, dibutyl phthalate, terephthalic acid Dioctyl esters, corn oil, modified chitosan, acetic acid, ethylene glycol diglycidyl ether, epichlorohydrin, p-dimethyldibenzylidene sorbitol, pimelic acid, N,N'‑bicyclo Hexyl‑2,6‑naphthalene dicarboxamide, carbon black, barium sulfate, nano titanium dioxide, magnesium perchlorate, cerium oxide, aluminum oxide. The antibacterial and hydrophilic polypropylene microporous membrane proposed by the invention has good antibacterial property, excellent hydrophilicity and antifouling performance, and high strength, toughness and porosity.

The invention discloses a quick waste gas desulphurization agent and a preparation method thereof. The agent is prepared from raw materials in parts by weight as follows: 25-27 parts of cobalt chloride, 18-20 parts of sodium carbonate, 15-17 parts of cobalt carbonyl, 6-8 parts of basic nickel carbonate, 20-22 parts of basic aluminum sulfate, 20-22 parts of potassium hydroxide, 6-8 parts of activated carbon, 4-6 parts of calcium lactate, 12-14 parts of iron oxide, 6-8 parts of manganese oxide, 6-8 parts of zirconium dioxide, 2-4 parts of sodium zirconate, 6-8 parts of praseodymium-neodymium oxide, 18-20 parts of lanthanum oxide, 26-28 parts of acetic acid, 5-7 parts of sodium hydroxide and 4-6 parts of magnesium perchlorate. The quick waste gas desulphurization agent has the high desulphurization speed and the good use effect.

The invention discloses a PEO-based solid electrolyte, a preparation method thereof and application of the PEO-based solid electrolyte in a solid-state lithium-sulfur battery. The polyoxyethylene-based solid electrolyte is obtained by uniformly mixing and drying the following components in parts by mass: 40-50 parts of lithium salt, 0.5-3 parts of magnesium salt, 5-20 parts of filler, 1000-1500 parts of solvent and 100 parts of PEO. According to the PEO-based solid electrolyte, bis (trifluoromethylsulfonyl) imide magnesium or magnesium perchlorate is adopted as a functional additive, so that the performance of the PEO-based solid electrolyte can be remarkably improved. The PEO-based composite solid electrolyte containing the magnesium salt additive prepared by the invention is applied to an all-solid-state lithium-sulfur battery for the first time, and shows excellent electrochemical performance.

The invention discloses a preparation method of ethyl petrol thioglycolate, which uses magnesium perchlorate as catalyst, uses cyclohexane as water-carrying agent, reacts mercaptoacetic acid with over absolute ethyl alcohol, distills the reaction solution at normal pressure to obtain over alcohol and cyclohexane, washes via distilled water, extracts via ether to remove magnesium perchlorate, filters and dries, depressurizes and distills to obtain ethyl petrol thioglycolate. The invention has simple process, non pollution, low cost and high yield as 98%.