TW201009856A - Manufacturing method of magnetic material - Google Patents

Abstract

The present invention discloses a method of manufacturing magnetic material. The method includes the following Steps. Step 1, dissolve ferric nitrate having H2O and other metallic nitrates in an alcohol solvent to form a solution. Step 2, heat the solution to 60 to 100 degrees Centigrade. Step 3, put citric acid into the solution so as to react with each other and make the alcohol solvent volatilized under the 60 to 100 degrees Centigrade, thus obtain brown solid powder. Step 4, further heat the solid powder with an oven so as to obtain the magnetic material having a fluffy powdery form. The method of manufacturing the magnetic material of the present invention can be achieved under a relatively lower temperature that effectively reduces the manufacture cost and facilitates the manufacture of the magnetic material. Moreover, the magnetic material manufactured by the above-mentioned method has a higher degree of purity and is easy to be dispersed.

Description

201009856 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a method for producing a magnetic material, and more particularly to a method for producing a magnetic material in a liquid phase. [Prior Art] The method of exhibiting slaves can be divided into a solid phase method, a gas phase method, and a liquid phase method. The solid phase method is simpler: but it needs to be carried out at a temperature higher than _Celsius and the magnetic material of (4) is more easily aggregated and not easily dispersed. The gas phase method also (4) vapor deposition method, which requires a reaction at a temperature higher than the employed Celsius. The reaction conditions are harsh, the processing window is small, and mass production is not easy. The liquid phase method must be high temperature sintered at a temperature higher than _ degrees Celsius to obtain a higher purity magnetic material. SUMMARY OF THE INVENTION The purpose of this month is to provide a liquid which can be produced at a relatively low temperature and which is highly pure and easy to disperse, and is easy to mass-produce, which can reduce the manufacturing cost, in view of the deficiencies of the above-mentioned conventional techniques. A method of manufacturing a magnetic material in phase. In order to achieve the above object, the method for producing a magnetic material provided by the present invention comprises the steps (1) of dissolving iron nitrate nonahydrate and other metal nitrate compounds in an alcoholic agent to make '(2) heating the solution to 6 degrees Celsius. ~1〇〇 degree; (7) Adding a chelating agent to the above solution 'stirring uniformly, continue to maintain the heating temperature of 60 to 100 degrees Celsius, the components in the mission liquid react and volatilize the alcohol solvent in the solution, thereby obtaining a tan (4) The solid powder is heated in an oven to volatilize the residual a agent in the solid powder to obtain a bulky powdery magnetic material. ^ As described above, the method for producing the magnetic material of the present invention can be carried out at a relatively low temperature, thereby effectively saving energy and reducing the manufacturing cost. The reaction conditions of the method are required to be low at 201009856, and the mass of the magnetic material produced is high and the purity is high. Easy to disperse. [Embodiment] The technical contents, structural features, and the objects and effects achieved by the present invention will be described in detail below. Ο

The method for producing a magnetic material according to the present invention comprises the steps of: (1) dissolving iron nitrate nonahydrate and other metal nitrate compounds in an alcohol solvent to obtain a nitrate compound solution; (2) heating the solution to 60 to 100 degrees Celsius; (3) adding a chelating agent to the above solution, stirring uniformly, and maintaining the heating temperature of 60 to 1 degree Celsius, reacting the components in the solution and volatilizing the alcohol solvent in the solution, thereby obtaining a tan solid. (4) The solid powder is heated in an oven, and the residual solvent in the solid powder is volatilized to obtain a bulky powdery magnetic material. Before the solution is heated in the step (2), an oxirane coupling agent of the formula RnSiX4-n may be added to the solution, wherein r represents an organic functional group, and X represents a non-hydrolyzable functional group 'η An integer of 〇~2, wherein when n=2, the substance represented by R may be the same or different; specifically, the oxime coupling agent may be tetraethoxy decane, tetramethoxy decane, or triethoxymethyl. One or more of decane and triethoxyethyl decane. The step (3) may be carried out by adding an appropriate amount of water before adding the chelating agent to the solution. In the above method for producing a magnetic material, the other metal nitrate compound may be nickel nitrate hexahydrate [Ni(N03)2 · 6H20], zinc nitrate hexahydrate [Ζη(Ν03)2 · 6H20], lanthanum nitrate pentahydrate [ Bi(N〇3)3 · 5H2〇], cobalt nitrate hexahydrate [c〇(N03)3 · 6H20], hexahydrate sulphate [Μη(Ν03)2 · 6H2〇], magnesium nitrate hexahydrate [Mg ( One or more of N03)2 · 6H20] and cerium nitrate [Ba(N〇3)2]. The alcohol solvent may be one or both of ethanol and propanol. The ratio of the mass of the ferric nitrate nonahydrate to the total mass of the other metal nitrate compounds is preferably 5:1 to 2, and the ratio of the total mass of the ferric nitrate and other metal nitrate compounds to the mass of the alcohol solvent is 1: 1~15 is suitable, Jiuhui nitric acid 201009856 The total mass of iron and other oleic acid metal compounds and the mass ratio of the chelating agent are preferably 1 () · · 〇 5~2, the sulphur acid and other nitric acid The mass ratio of the total mass of the metal compound to the oxime coupling agent is preferably 10: 〇.5 〜2. In the step (2), the heating is preferably carried out in a slow heating manner, and the heating temperature in the step (4) is preferably in the range of 1 GG to 110 °C. The method for producing the above magnetic material will be described below with reference to a specific embodiment. See the first figure for the first step, first take 250 grams of nickel nitrate hexahydrate (Ni(N03)2.6H20), 256 grams of zinc nitrate hexahydrate (Ζη(Ν〇3)2·6Η2〇) and 1389g of ferric nitrate 9 Fe(10)3)3 · 9Η20), add 2500 ml of ethanol solvent, mix well until 9 full dissolution; then add 1 gram of tetraethoxy zebra, 5 gram of tetramethoxy oxime and 50 to the solution. Gram diethoxymethyl oxime; slowly warmed to Celsius; add 5 gram of water, then add 2 gram of chelating agent (citric deduction), fully mix evenly, at this time the liquid will bubble vigorously, ethanol The solvent was gradually evaporated to obtain a brown solid powder; the solid powder was heated in an oven at a temperature of 1 to 5 ° C for 12 hours to completely remove the ethanol, and finally a ferrite material in the form of a powder of pine powder was obtained. In the above method for producing a magnetic material according to the present invention, since the chemical component H in the solution generates a large amount of heat during the reaction, (4) the foot_energy 1 is provided, so that the high-temperature sintering of the two-pass step is not required, and the ferrite is obtained. material. In the reaction, a coupling agent is added to form an oxygen-cut protective layer on the outer layer of the ferromagnetic material, thereby improving the stability of the magnetic material/ferric oxide/magnetic composite material in the composite state of the core/shell of the oxidized stone. (4) As described above, the method for manufacturing the magnetic material of the present invention can be: and can effectively save energy 'reducing the manufacturing cost, the method has low reaction, and is easy to mass-produce, and the obtained magnetic material has high purity and is easy to disperse. . BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a manufacturing method of a magnetic material of the present invention.

Claims (1)

201009856 X. Patent application scope: h A method for manufacturing a miscellaneous material, comprising the following steps: (1) dissolving iron nitrate nonahydrate and other acid metal compounds in an alcohol solvent (2) heating the solution to 60 to 100 degrees Celsius Adding a chelating agent to the solution, mixing it evenly, and maintaining the dosage of ～1 〇〇0 ο, to obtain a brown solid powder; the _ _ solution (4) in the ♦ solution will be The solid powder is heated in an oven to volatilize the solid powder to obtain a bulky powdery magnetic material. Leave ~1 2. Please ask for the scope of patents! The method for producing the magnetic material described in the item, ί other metal nitrate compounds are hexahydrate nitrate _, zinc nitrate hexahydrate, pentacene acid ^, water sulphur acid #, hexahydrate _, Liushui Yun and Shi Xiao One or more of _. 3. For the method of manufacturing the magnetic material described in item j of the patent scope, the ratio of the mass of the non-hydrated iron sulphate to the total mass of the other oxalic acid metal compound is 2.1 Jin 2 'nine water: acid The ratio of the total mass of iron to other nitrate metal compounds to the mass of alcohol-soluble is 1: 1 to 1 5; the ratio of the total mass of the six elements to the mass of the mixture is: water ^ 4. The method for producing the Wei material according to the item, wherein the step (2) adds the solution to the solution, and first adds a formula of R 4 4 n ^ Shi Xi listening mixture to the solution, wherein R_ is a kind of emitter energy source, silk Lin Jieji, η represents an integer of 0~2, which can be different from Lu Yueyue. ^田η - 2, the material represented by the ruler can be phased. 5. The method for producing a magnetic material as described in claim 4, wherein the "oxygen coupling agent is tetraethoxy money, tetramethoxy. One or more of simmering, triethoxymethyl zeshi burn 201009856 and diethoxyethyl decane _ 6. The magnetic material described in 4 (4) of the application materials (4) method of making soil nine water rhyme iron and other nitrate metal The total mass of the compound is in the range of 10·· 0.5~2. The mass of the Xigong coupling agent is as described in the magnetic material described in the first paragraph of the patent range (1) before adding the solution to the solution, first Add the right amount; The method of producing a magnetic material according to the above item 1, wherein the heating temperature in the step (4) is a temperature of about 0.25 deg. I, where 9’, invites the patent Fanyuan! The cutting solvent described in the above is a method for producing one or two of ethanol and propanol, wherein the method for producing the magnetic material according to the first item is in the heating method of the first item, Slow heating is used. ,,in