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105 results about "Magnesium salts" patented technology

Epsom Salt is actually a form of Magnesium. Its compound name is Magnesium Sulfate and looks a lot like salt! Magnesium Sulfate is used to treat all sorts of health issues ranging from strained, sore muscles to mental well-being. It is traditionally used in baths, but can be safely ingested as well.

Preparation method for magnetism-containing modified corundum composite material

InactiveCN104446390AShort firing residence timeHigh bulk densitySlagBrucite
The invention relates to a preparation method for a magnetism-containing modified corundum composite material. The composite material comprises the following main chemical components (wt): more than 95% of Al2O3 and less than 5% of MgO (Al2O3+MgO>99%); a main phase is a spinel-corundum phase. The preparation method comprises the following steps: taking industrial Al2O3, alpha-Al2O3 and Al(OH)3 as aluminum sources and magnesium salts such as brucite, light-burned MgO, dead burnt magnesite and magnesite as magnesium sources, adding 0.5-5% of alumina sol as a bonding agent or a combustion supporting agent, uniformly mixing through a gap-type or continuous-type ball mill, finely grinding, grading powder through air separation, forming the powder through a process of balling, pressing or the like, finally quickly sintering in a vertical kiln or a rotary kiln at 1,700-1,950 DEG C, crushing, grading, and deironing to obtain the magnetism-containing modified corundum composite material. According to the method, a high-quality refractory material for a liner of a high-temperature kiln is obtained, is low in expansion, high in strength, good in stability in a high-temperature reduction atmosphere and good in alkali resistance and slag corrosion resistance, and is a conventional sintered corundum upgrade product.
Owner:JIANGSU JINGXIN NEW MATERIAL

Application of oligoguluronates in preparation of drugs for prevention and treatment of liver damage and various hepatitis, liver fibrosis or cirrhosis

The invention belongs to the field of marine drugs, and in particular relates to an application of oligoguluronates in preparation of drugs for prevention and treatment of liver damage and various hepatitis, liver fibrosis or cirrhosis. The oligoguluronates are used in preparation of the drugs for protection of livers and treatment of various hepatitis, liver fibrosis or cirrhosis; the oligoguluronates adopt algin as a raw material, and oligoguluronic acids with different molecular weights are obtained through a chemical degradation method or a physical degradation or a combination of the two degradation methods; the oligoguluronic acids are neutralized to prepare lithium salts, sodium salts, potassium salts, calcium salts or magnesium salts of the oligoguluronic acids with different molecular weights, wherein a molecular skeleton is a linear oligosaccharide compound formed by connecting L-guluronic acid (G) through alpha-(1,4)-glycosidic bonds. The products are derived from the marine natural product, have many advantages of abundant resources, easy industrialization, safety, effectivity and the like, and have broad development and application prospects in prevention and treatment of liver damage and various hepatitis, liver fibrosis or cirrhosis.
Owner:MARINE BIOMEDICAL RES INST OF QINGDAO CO LTD

Preparation method of piezoelectric ceramic with high Curie temperature and film thereof

The invention relates to a preparation method of a piezoelectric ceramic with a high Curie temperature and a film thereof. The chemical formula of the prepared piezoelectric ceramic material is (1-x)(BiMg<1/2>Ti<1/2>O<3>)-x(PbTiO<3>)-yMe, wherein 0.3<=x<=0.45, 0<=y<=0.05, and Me represents a modifying element. Bismuth salts, magnesium salts, lead salts, chromium salts, or/and manganese salts and organic titanium salts are taken as the primary raw materials; through selecting a proper dispersing medium and controlling the solution temperature and concentration and addition sequence, the metal salts form uniform sol through the chelating effect of a stabilizing agent, then the sol is concentrated, dried and calcined to obtain piezoelectric nano powder with a high Curie temperature, and the piezoelectric nano powder is ball-grinded, dried, screened, pressed, and sintered to prepare piezoelectric ceramic with a high Curie temperature. Or through various solution methods such as spin coating, infiltrating, and the like, uniform sol is painted on an inorganic substrate to prepare a film, and then the substrate is dried and annealed to prepare a piezoelectric ceramic film. The prepared piezoelectric ceramic film can be used to prepare various related piezoelectric devices with a work temperature higher than 200 DEG C such as energy converter, sensor, and the like, and has a wide application prospect.
Owner:INST OF ACOUSTICS CHINESE ACAD OF SCI

Production method for micro-crosslinking type powdered acrylonitrile-butadiene rubber containing middle and high content of nitrile

The invention relates to a production method for micro-crosslinking type powdered acrylonitrile-butadiene rubber containing middle and high content of nitrile. Firstly, nitrile rubber paste is synthetized, then agglomerated and isolated into powder, and finally dehydrated and dried. In the polymerization reaction stage, potassium carbonate is added as a reaction buffer agent, and diethylhydroxylamine, hydroxylamine sulfate, a mixed solution of potassium hydroxide and soft water are added as a composite terminating agent. In the isolation and powdering stage, WSL and DLTP are added as an antiager, monovalent sodium salts and divalent magnesium salts or monovalent sodium salts and divalent calcium salts are used as a coagulant, and the nitrile rubber paste is agglomerated and isolated into powder at 30-75 DEG C. The production process of the present invention is simple, easy to operate, low in production costs, small in energy consumption, and high in conversion rate which can reach more than 95%. The production method employs a new composite terminating agent, which is stable in mooney and good in termination effect. The powdered acrylonitrile-butadiene rubber is relatively fine, therefore dispersibility is improved during processing. The product is very good in heat resistance and wear resistance, and can meet the application requirements of train high friction brake block.
Owner:HUANGSHAN HUALAN TECH

Method for preparing composite ammonia nitrogen remover and application thereof

The present invention provides a preparation method for remover for compound ammonia nitrogen, which is developed aiming at the defects of utilizing the biological method and the aeration stripping method to apply the treatment to the ammonia nitrogen in the sewage that the technological process is long and the removal rate is not high. The preparation method for remover for compound ammonia nitrogen comprises the following steps: first the mixture of the phosphates and the magnesium salts is remixed; wherein the mixing is carried out following the molar ratio ranging from 1.0:1.0 to 1.3:1.0 according to Mg2+:PO42- and the mixture is mixed with the water in a mass ratio of 1:9 so as to be dissolved into the solution, and then the solution containing ferrous acids which the acidity (calculated according to the content of HCl) ranges from 10% to 50%, the content of Fe3+ ranges from 0.05% to 5% and the content of Fe2+ ranges from 8% to 8% in is added in the solution and the homogeneous solution is obtained under the sufficient stirring. A liquid ammonia nitrogen treatment agent prepared according to the present invention has simple manufacturing technique, is beneficial to the transportation and adding, has very strong ability of removing the ammonia nitrogen, is suitable for removing the ammonia nitrogen in the industrial sewage and domestic sewage of various industries, in particular the printing and dyeing, chemical engineering, paper making industries, etc and simultaneously has the auxiliary effect of removing the phosphorus ions in the sewage and lower COD.
Owner:CHANGZHOU WUJIN YOUBANG WATER PURIFICATION MATERIALS

Magnesia refractory material and preparation method thereof

The invention relates to a magnesia refractory material and a preparation method thereof. The technical scheme is that the preparation method comprises the following steps: uniformly mixing 35-70wt% of talc powder, 25-60wt% of magnesium salts and 0.1-5wt% of a surfactant, and performing ball milling for 1-5 hours to obtain a ball milling material; drying the ball milling material, additionally adding a silica raw material accounting for 5-15wt% of the dried ball milling material, mixing uniformly, and performing mechanical pressing for the first time; then preserving the heat for 1-5 hours at 400-800 DEG C to obtain a pre-sintered material; crushing the pre-sintered material, and ball-milling the crushed pre-sintered material to have a particle size of less than 0.088mm, thereby obtaining abrasive powder; taking 5-10wt% of the abrasive powder, 50-80wt% of magnesia particles, 10-40wt% of magnesia powder and 5-10wt% of the silica raw material to form a mixed material, additionally adding silica sol accounting for 1-5wt% of the mixed material, mixing uniformly, performing mechanical pressing for the second time, and drying; and finally, firing for 2-6 hours at 1500-1600 DEG C to obtain the magnesia refractory material. The magnesia refractory material prepared by the method provided by the invention has the characteristics of excellent high-temperature resistance, high strength, excellent erosion resistance and high thermal shock stability.
Owner:WUHAN UNIV OF SCI & TECH
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