CN103232028B - Barium iron phosphate product, preparation method and uses thereof - Google Patents

Barium iron phosphate product, preparation method and uses thereof Download PDF

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CN103232028B
CN103232028B CN201310131009.1A CN201310131009A CN103232028B CN 103232028 B CN103232028 B CN 103232028B CN 201310131009 A CN201310131009 A CN 201310131009A CN 103232028 B CN103232028 B CN 103232028B
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barium
source
iron phosphate
iron
phosphate product
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CN103232028A (en
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张健
吴润秀
王晶
张雅静
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Tongxiang Hongchen Industrial Design Co., Ltd
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张健
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The present invention provides a barium iron phosphate product, a preparation method and uses thereof. The barium iron phosphate product has a chemical formula Ba(FePO4)2. According to the following chemical reaction formula: 3BaCl2, 6FeCl2, 6Na3PO4 and nH2O produce 3Ba(FePO4)2(precipitate), 18NaCl and nH2O, the preparation method comprises: selecting barium chloride (99.8%), ferrous chloride (iron dichloride) (99.06%), and trisodium phosphate (98%) as raw materials; measuring according to a mol ratio of the chemical formula Ba(FePO4)2; respectively dissolving the barium source (barium chloride) and the iron source (ferrous chloride) with solvents, uniformly mixing, adding the phosphate source (trisodium phosphate) solution, mixing, and carrying out a double decomposition reaction at a room temperature to produce a barium iron phosphate precipitate; and carrying out solid-liquid separation to obtain the barium iron phosphate product. The barium iron phosphate product can be adopted as a reduction agent, a deoxidant, a food deoxidation preservative oxygen, an electronic component material or a production raw material for electronic component manufacturing, and a production raw material for manufacturing a battery positive electrode material and a battery thereof, and can further be used as an additive in the field of smelting, alloys and glass production. The preparation method has characteristics of sufficient raw materials, environmental pollution, no pollution and the like.

Description

Barium iron phosphate product and its production and use
Technical field
Barium iron phosphate product of the present invention, belongs to a kind of novel material.
Background technology
At present, report and the record of barium iron phosphate compound is not yet found that there is.Through the retrieval of publication, the investigations such as the information of internet and books and periodicals, magazine, market, do not have to find the patent documentation identical with technical products of the present invention, have no and the report of technology of the present invention or product or sale yet.
Summary of the invention
The object of the invention is to: propose a kind of barium iron phosphate product.
Another object of the present invention is to: the preparation method proposing a kind of barium iron phosphate product.
The present invention also has an object to be: the purposes proposing a kind of barium iron phosphate product.
Barium iron phosphate product of the present invention, is characterized in that: chemical formula is: Ba (FePO 4) 2; Adopt art methods, sample is ground to form tiny powder, disperses into cesium iodide particle with the ratio of 1:300; Analyze with X-ray diffraction instrument, take off data is collected in scope 10-80 degree; Its crystal structure characteristic is for shown in Fig. 1 spectral line; Adopt art methods, sample is first dispersed in alcohol by ultrasonic wave, is then deposited on siliceous substrate; Test with scanning electron microscope external energy dispersion X-ray analysis instrument, electromicroscopic photograph superelevation pattern shooting clearly; Its appearance structure is characterized as shown in Fig. 2.
Barium iron phosphate product of the present invention, by mixing the doping treatment of a small amount of element, can improve, improve product performance, its doped element content, and by weight percentage, in barium iron phosphate product, dopant elements content is in 0-5% scope, described doped element is: carbon, sulphur, iodine, titanium, silver, niobium, germanium, calcium, magnesium, aluminium, zirconium, selenium, strontium, boron, copper, vanadium, nickel, zinc, antimony, molybdenum, tin, manganese, cobalt, cadmium, bismuth, beryllium, lithium, lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), scandium (Sc), one of yttrium (Y) or be no less than 2 kinds of elemental compositions, it mixes element source, the compound of element simple substance or its element.
Barium iron phosphate product of the present invention, can adopt the various preparation methods of prior art to obtain.
Barium iron phosphate product of the present invention, is mainly used as reductive agent, reductor, food deoxidizing antistaling agent.As materials of electronic components or manufacture the raw materials for production of electronic component, manufacture the raw materials for production of cell positive material and battery thereof.For smelting, the additive of alloy, glass production.
Barium iron phosphate product of the present invention its there is extremely strong reducing property, it contacts with air, gets final product oxidation by air, becomes brown or yellow from dark color; Reductive agent, reductor, food deoxidizing antistaling agent can be widely used as; Can be widely used in reduction, deoxidation industry production; Because it is nontoxic, water insoluble and organic solvent, can be general for food deoxidizing antistaling agent (non-food product additive), and have deixis.
Can be used as the material of battery, be mainly used as cell positive material; Also can be used as materials of electronic components.As cell positive material, adopt the testing apparatus of prior art and the testing method of prior art, test: the relative barium electropotential of its charge and discharge platform is about 3.6V, initial discharge capacity is more than 187mAh/g, and after 100 charge and discharge cycles, capacity about decays about 0.2%; Specific storage and cyclical stability compared with prior art, are greatly improved, and production cost price is than more than the low decades of times of prior art.
For smelting, the additive of alloy, glass production: for smelting, alloy production additive, can improved products performance; For the additive of glass production, required special glass product can be obtained.
Barium iron phosphate product preparation method of the present invention, is characterized in that: its chemical formula is: Ba (FePO 4) 2; By weight percentage, wherein containing 0-5% doped element, described doped element is: one of carbon, sulphur, iodine, titanium, silver, niobium, germanium, calcium, magnesium, aluminium, zirconium, selenium, strontium, boron, copper, vanadium, nickel, zinc, antimony, molybdenum, tin, manganese, cobalt, cadmium, bismuth, beryllium, lithium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, yttrium or be no less than the composition of 2 kinds of elements; Its preparation process: the raw material of its barium source, source of iron, phosphoric acid root, according to chemical formula Ba (FePO 4) 2mol ratio metering; Doped element source, can generate the weighing scale of barium iron phosphate by theory, calculate by 0-5% scope (weight percent), adds doped element; Its barium source, source of iron, doped element source, with (or respectively with after dissolution with solvents, mixing) after dissolution with solvents, add phosphoric acid root solution, 1-105 DEG C of scope, carry out replacement(metathesis)reaction, generate barium iron phosphate throw out; Namely barium iron phosphate product of the present invention is obtained through solid-liquid separation.
But described solvent water or organic solvent;
The temperature of described replacement(metathesis)reaction is preferably 5-50 DEG C of scope;
The temperature of described replacement(metathesis)reaction is preferably 10-30 DEG C of scope.
Described barium source is one of barium carbonate, hydrated barta, bariumchloride, nitrate of baryta, barium oxide, barium sulphide; Source of iron is Ferrox, ferrous chloride, iron trichloride, ferric oxide etc.; Phosphoric acid root is: phosphoric acid, sodium phosphate salt, one of primary ammonium phosphate or Secondary ammonium phosphate;
Described doped element source: titanium source is metatitanic acid, titanium dioxide, titanium tetrachloride etc.; Silver source is Silver Nitrate AgNO3, silver suboxide Ag2O etc., and niobium source is sodium columbate (NaNbO3), niobic acid NbO3, Niobium Pentxoxide (Nb2O5) etc.; Germanium source is germanium oxide GeO2 etc.; Calcium source is calcium carbonate etc.; Magnesium source is magnesium oxide (MgO), magnesiumcarbonate (MgCO3), magnesium hydroxide (Mg (OH) 2) etc.; Aluminium source is aluminium hydroxide (Al (OH) 3) etc.; Zirconium source is zirconium carbonate ammonium (ZrO(CO3) 2(NH4) 2nH2O), zirconium hydroxide (ZrO (OH) 2nH2O), zirconium tetrachloride (ZrCl4) etc.; Selenium source is selenium powder etc.; Strontium source is Preparation of Metallic Strontium, strontium hydroxide (Sr (OH) 2), Strontium carbonate powder SrCO3, etc.; Boron source is boric acid etc.; Copper source is ventilation breather Cu2 (OH) 2CO3, copper hydroxide Cu (OH) etc.; Vanadium source is Vanadium Pentoxide in FLAKES V2O5 etc.; Nickel source is hydroxide nickel (OH) 2, nickelous carbonate NiCO3 etc.; Zinc source is zinc carbonate ZnCO3, zinc oxide ZnO etc.; Antimony source is antimonous oxide Sb2O3 etc.; Molybdenum source is molybdic oxide MoO3, ammonium molybdate (NH4) 6Mo7O244H2 etc.; Xi Yuan is tindioxide SnO2 etc.; Manganese source is the sub-manganese MnCO3 of carbonic acid, manganous hydroxide Mn (OH) 2, Manganse Dioxide MnO2 etc.; Cobalt source is cobalt oxalate CoC2O4, cobaltous carbonate CoCO3, cobalt oxide CoO, cobaltous hydroxide Co (OH) 2 etc.; Cadmium source is cadmium hydroxide Cd (OH) 2, Cadmium oxide CdO, cadmium carbonate CdCO3 etc.; Bismuth source is bismuthous oxide bismuth trioxide Bi2O3, Bismuth trinitrate Bi (NO3) 3.5H2O etc.; Beryllium source is beryllium hydroxide Be (OH) 2, beryllium oxide BeO etc.; Lithium source is Quilonum Retard, one of lithium hydroxide or monometallic, carbon source is that simple substance carbon (carbon dust, carbon black etc.) sulphur source is elemental sulfur (Sulfur), propiodal is iodine, its lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), scandium (Sc), yttrium (Y) source are one of its oxide compound, muriate.
The present invention's beneficial effect compared with prior art:
Barium iron phosphate product of the present invention, generally can be used as reductive agent, reductor, food deoxidizing antistaling agent; Materials of electronic components or manufacture the raw materials for production of electronic component, manufacture the raw materials for production of cell positive material and battery thereof; The additive of smelting, alloy, glass production; It has raw material abundance, at the bottom of production cost, and the feature such as environment friendly and pollution-free; As cell positive material, the relative barium electropotential of its charge and discharge platform is about 3.6V, and initial discharge capacity is more than 187mAh/g, and after 100 charge and discharge cycles, capacity about decays about 0.2%; Specific storage and cyclical stability compared with prior art, are greatly improved, and production cost price is than more than the low decades of times of prior art.
Embodiment
Below in conjunction with embodiment, the invention will be further described, but embodiments of the present invention are not limited thereto.
Embodiment 1
Barium iron phosphate product of the present invention and preparation method thereof:
Select: bariumchloride (99.8%), iron protochloride (ferrous chloride) (99.06%), tertiary sodium phosphate (98%) is raw material; Be expressed as with chemical equation:
3BaCl 2+6FeCl 2+6Na 3PO 4+nH 2O---→3Ba(FePO 4) 2↓+18NaCl+nH 2O
According to chemical formula Ba (FePO 4) 2mol ratio metering; Its barium source (bariumchloride), source of iron (iron protochloride), respectively with after dissolution with solvents, mix, and adds the mixing of phosphoric acid root (tertiary sodium phosphate) solution, carry out replacement(metathesis)reaction at normal temperatures, generate barium iron phosphate throw out; Namely barium iron phosphate product of the present invention is obtained through solid-liquid separation.
Embodiment 2
Barium iron phosphate product preparation method of the present invention, is characterized in that: the raw material of its barium source, source of iron, phosphoric acid root, according to chemical formula Ba (FePO 4) 2mol ratio metering; Doped element source, can generate the weighing scale of barium iron phosphate by theory, calculate by 0-5% scope (weight percent), adds doped element; Its barium source, source of iron, doped element source, respectively with (or respectively with after dissolution with solvents, mixing) after dissolution with solvents, add the mixing of phosphoric acid root solution, carry out replacement(metathesis)reaction 1-105 DEG C of scope, generate barium iron phosphate throw out; Namely barium iron phosphate product of the present invention is obtained through solid-liquid separation.Products obtained therefrom meets chemical formula Ba (FePO 4) 2chemical constitution.
But described solvent water or organic solvent;
The temperature of described replacement(metathesis)reaction, preferably 5-50 DEG C of scope;
The temperature of described replacement(metathesis)reaction, preferably 10-30 DEG C of scope.
Described barium source is one of barium carbonate, hydrated barta, bariumchloride, nitrate of baryta, barium oxide, barium sulphide, source of iron is Ferrox, ferrous chloride, iron trichloride, ferric oxide etc., phosphoric acid root is: phosphoric acid, sodium phosphate salt, one of primary ammonium phosphate or Secondary ammonium phosphate, dopant elements source can be: carbon, sulphur, iodine, titanium, silver, niobium, germanium, calcium, magnesium, aluminium, zirconium, selenium, strontium, boron, copper, vanadium, nickel, zinc, antimony, molybdenum, tin, manganese, cobalt, cadmium, bismuth, beryllium, lithium, lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), scandium (Sc), one of yttrium (Y) element or be no less than 2 kinds of elemental compositions, but describedly mix thing element simple substance or its element compound.
Above doped element source: titanium source is metatitanic acid, titanium dioxide, titanium tetrachloride etc.; Silver source is Silver Nitrate AgNO3, silver suboxide Ag2O etc., and niobium source is sodium columbate (NaNbO3), niobic acid NbO3, Niobium Pentxoxide (Nb2O5) etc.; Germanium source is germanium oxide GeO2 etc.; Calcium source is calcium carbonate etc.; Magnesium source is magnesium oxide (MgO), magnesiumcarbonate (MgCO3), magnesium hydroxide (Mg (OH) 2) etc.; Aluminium source is aluminium hydroxide (Al (OH) 3) etc.; Zirconium source is zirconium carbonate ammonium (ZrO(CO3) 2(NH4) 2nH2O), zirconium hydroxide (ZrO (OH) 2nH2O), zirconium tetrachloride (ZrCl4) etc.; Selenium source is selenium powder etc.; Strontium source is Preparation of Metallic Strontium, strontium hydroxide (Sr (OH) 2), Strontium carbonate powder SrCO3, etc.; Boron source is boric acid etc.; Copper source is ventilation breather Cu2 (OH) 2CO3, copper hydroxide Cu (OH) etc.; Vanadium source is Vanadium Pentoxide in FLAKES V2O5 etc.; Nickel source is hydroxide nickel (OH) 2, nickelous carbonate NiCO3 etc.; Zinc source is zinc carbonate ZnCO3, zinc oxide ZnO etc.; Antimony source is antimonous oxide Sb2O3 etc.; Molybdenum source is molybdic oxide MoO3, ammonium molybdate (NH4) 6Mo7O244H2 etc.; Xi Yuan is tindioxide SnO2 etc.; Manganese source is carbonic acid sub-manganese MnCO3, manganous hydroxide Mn (OH) 2, Manganse Dioxide MnO2 etc.; Cobalt source is cobalt oxalate CoC2O4, cobaltous carbonate CoCO3, cobalt oxide CoO, cobaltous hydroxide Co (OH) 2 etc.; Cadmium source is cadmium hydroxide Cd (OH) 2, Cadmium oxide CdO, cadmium carbonate CdCO3 etc.; Bismuth source is bismuthous oxide bismuth trioxide Bi2O3, Bismuth trinitrate Bi (NO3) 3.5H2O etc.; Beryllium source is beryllium hydroxide Be (OH) 2, beryllium oxide BeO etc.; Lithium source is Quilonum Retard, one of lithium hydroxide or monometallic, carbon source is that simple substance carbon (carbon dust, carbon black etc.) sulphur source is elemental sulfur (Sulfur), propiodal is iodine, its lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), scandium (Sc), yttrium (Y) source are one of its oxide compound, muriate.
Embodiment 3
Select: bariumchloride (99.8%), iron protochloride (ferrous chloride) (99.06%), tertiary sodium phosphate (98%) is raw material; According to chemical formula Ba (FePO 4) 2mol ratio metering; Doped element source Silver Nitrate AgNO3, can generate the weighing scale of barium iron phosphate by theory, by 0.5%(weight percent) calculate and add doped element; Its barium source, source of iron, dopant elements source, respectively with after dissolution with solvents, mix, and adds the mixing of phosphoric acid root solution, carry out replacement(metathesis)reaction 10-30 DEG C of scope, generate barium iron phosphate throw out; Namely barium iron phosphate product of the present invention is obtained through solid-liquid separation.
Embodiment 4
Select: bariumchloride (99.8%), iron protochloride (ferrous chloride) (99.06%), tertiary sodium phosphate (98%) is raw material; According to chemical formula Ba (FePO 4) 2mol ratio metering; Doped element source boric acid, can generate the weighing scale of barium iron phosphate by theory, by 1%(weight percent) calculate and add doped element; Its barium source, source of iron, dopant elements source, respectively with after dissolution with solvents, mix, and adds the mixing of phosphoric acid root solution, carry out replacement(metathesis)reaction 30-50 DEG C of scope, generate barium iron phosphate throw out; Namely barium iron phosphate product of the present invention is obtained through solid-liquid separation.
Embodiment 5
Select: bariumchloride (99.8%), iron protochloride (ferrous chloride) (99.06%), tertiary sodium phosphate (98%) is raw material; According to chemical formula Ba (FePO 4) 2mol ratio metering; Doped element source ammonium molybdate (NH4) 6Mo7O244H2, can generate the weighing scale of barium iron phosphate, by 2%(weight percent by theory) calculate and add doped element; Its barium source, source of iron, dopant elements source, respectively with after dissolution with solvents, mix, and adds the mixing of phosphoric acid root solution, carry out replacement(metathesis)reaction 15-80 DEG C of scope, generate barium iron phosphate throw out; Namely barium iron phosphate product of the present invention is obtained through solid-liquid separation.
Embodiment 6
Select: bariumchloride (99.8%), iron protochloride (ferrous chloride) (99.06%), tertiary sodium phosphate (98%) is raw material; According to chemical formula Ba (FePO 4) 2mol ratio metering; Doped element source cobalt oxalate CoC2O4 Silver Nitrate AgNO3, can generate the weighing scale of barium iron phosphate, by 3%(weight percent by theory) calculate and add doped element; Its barium source, source of iron, dopant elements source, respectively with after dissolution with solvents, mix, and adds the mixing of phosphoric acid root solution, carry out replacement(metathesis)reaction 80-90 DEG C of scope, generate barium iron phosphate throw out; Namely barium iron phosphate product of the present invention is obtained through solid-liquid separation.
Embodiment 7
Select: bariumchloride (99.8%), iron protochloride (ferrous chloride) (99.06%), tertiary sodium phosphate (98%) is raw material; According to chemical formula Ba (FePO 4) 2mol ratio metering; Doped element source Bismuth trinitrate Bi (NO3) 3.5H2O, can generate the weighing scale of barium iron phosphate, by 4%(weight percent by theory) calculate and add doped element; Its barium source, source of iron, dopant elements source, respectively with after dissolution with solvents, mix, and adds the mixing of phosphoric acid root solution, carry out replacement(metathesis)reaction 1-10 DEG C of scope, generate barium iron phosphate throw out; Namely barium iron phosphate product of the present invention is obtained through solid-liquid separation.
Embodiment 8
Select: bariumchloride (99.8%), iron protochloride (ferrous chloride) (99.06%), tertiary sodium phosphate (98%) is raw material; Measure according to the mol ratio of chemical formula Ba (FePO4) 2; Doped element source yttrium oxalate Y2 (C2O4) 310H2O, can generate the weighing scale of barium iron phosphate, by 0.1%(weight percent by theory) calculate and add doped element; Its barium source, source of iron, dopant elements source, respectively with after dissolution with solvents, mix, and adds the mixing of phosphoric acid root solution, carry out replacement(metathesis)reaction 90-100 DEG C of scope, generate barium iron phosphate throw out; Namely barium iron phosphate product of the present invention is obtained through solid-liquid separation.
Embodiment 9
Select: bariumchloride (99.8%), iron protochloride (ferrous chloride) (99.06%), tertiary sodium phosphate (98%) is raw material; Measure according to the mol ratio of chemical formula Ba (FePO4) 2; Doped element source metatitanic acid, can generate the weighing scale of barium iron phosphate by theory, by 5%(weight percent) calculate and add doped element; Its barium source, source of iron, dopant elements source, respectively with after dissolution with solvents, mix, and adds the mixing of phosphoric acid root solution, carry out replacement(metathesis)reaction 90-100 DEG C of scope, generate barium iron phosphate throw out; Namely barium iron phosphate product of the present invention is obtained through solid-liquid separation.
Barium iron phosphate product of the present invention, adopts art methods, carries out chemical element mensuration, meet Ba (FePO 4) 2the chemical constitution of chemical formula; Adopt art methods, sample is ground to form tiny powder, and disperses into cesium iodide particle with the ratio of 1:300; Analyze with X-ray diffraction instrument, take off data is collected in scope 10-80 degree; Its crystal structure characteristic is for shown in Fig. 1 spectral line; Adopt art methods, sample is first dispersed in alcohol by ultrasonic wave, is then deposited on siliceous substrate; Test with scanning electron microscope external energy dispersion X-ray analysis instrument, electromicroscopic photograph superelevation pattern shooting clearly; Its appearance structure is characterized as shown in Fig. 2; For oval particle, grain is through being about 0.4 micron.
Barium iron phosphate product of the present invention, is mainly used as reductive agent, reductor, food deoxidizing antistaling agent; The raw materials for production of materials of electronic components or manufacture electronic component, manufacture the raw materials for production of cell positive material and battery thereof; For smelting, the additive of alloy, glass production.
Barium iron phosphate product of the present invention, it has extremely strong reducing property, and it contacts with air, gets final product oxidation by air, is become filbert or faint yellow from pitch black brown; Can be widely used in reduction, deoxidation industry production; Because it is nontoxic, water insoluble and organic solvent, can be general for food deoxidizing antistaling agent (non-food product additive), and have deixis.
As cell positive material, can be used as battery material, be mainly used as cell positive material; Also can be used as materials of electronic components.As cell positive material, adopt the testing apparatus of prior art and the testing method of prior art, to the barium iron phosphate product of above embodiment 1-9, test respectively: the relative barium electropotential of its charge and discharge platform is about 3.6V, initial discharge capacity is more than 187mAh/g, and after 100 charge and discharge cycles, capacity about decays about 0.2%; Specific storage and cyclical stability compared with prior art, are greatly improved, and production cost price is than more than the low decades of times of prior art.
For smelting, the additive of alloy, glass production; For smelting, alloy production additive, can improved products performance; For the additive of glass production, required special glass product can be obtained.

Claims (1)

1. a preparation method for barium iron phosphate product, is characterized in that: its chemical formula is: Ba (FePO 4) 2by weight percentage, containing the doped element of 0-5% in its barium iron phosphate product, described doped element is: one of carbon, sulphur, iodine, titanium, silver, niobium, germanium, calcium, magnesium, aluminium, zirconium, selenium, strontium, boron, copper, vanadium, nickel, zinc, antimony, molybdenum, tin, manganese, cobalt, cadmium, bismuth, beryllium, lithium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, yttrium or be no less than the composition of 2 kinds of elements; Its preparation process: the raw material of its barium source, source of iron, phosphoric acid root; According to chemical formula Ba (FePO 4) 2mol ratio metering; Doped element source, can generate the weighing scale of barium iron phosphate by theory, 0-5% range computation by weight percentage, adds doped element; Its barium source, source of iron, doped element source, with after water or organic solvent dissolution or after dissolving respectively, mixing, add the solution of phosphoric acid root, 1-105 DEG C of scope, carry out replacement(metathesis)reaction, generate barium iron phosphate throw out; Namely barium iron phosphate product is obtained through solid-liquid separation;
Described barium source is one of hydrated barta, bariumchloride, nitrate of baryta, barium oxide, barium sulphide; Source of iron is ferrous chloride, iron trichloride; Phosphoric acid root is: phosphoric acid, sodium phosphate salt, one of primary ammonium phosphate or Secondary ammonium phosphate.
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