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Preparation method of Sc doped barium iron phosphate

A technology of barium iron phosphate and phosphoric acid, applied in chemical instruments and methods, phosphorus compounds, inorganic chemistry, etc., can solve the problems of unseen technology or product reports or sales, and no discovery, etc., to achieve low production cost and low production cost Effect

Inactive Publication Date: 2012-10-03
曾令城
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After searching for published patents, Internet information, books, periodicals, magazines, market research, etc., no patent documents identical to the technical products of the present invention have been found, and no reports or sales of the technology or products of the present invention have been seen.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Scandium-doped barium iron phosphate preparation method of the present invention is characterized in that: the raw material of its barium source, iron source, phosphate source, according to chemical formula Ba(FePO 4 ) 2 The mol ratio is measured; the doping element source is calculated according to the weight of the barium iron phosphate that can be theoretically generated, and the doping element is added in the range of 0.1-5% by weight; after mixing, in the ethanol medium, the speed is 200-800r / mimn High-speed ball milling for 15-20 hours, drying at 105-120°C to obtain the precursor, placing the dried precursor in a high-temperature furnace, and calcining at 300-450°C for 2-4 hours in a nitrogen atmosphere to obtain this product Invented scandium-doped barium iron phosphate product;

[0012] The barium source is one of barium carbonate, barium hydroxide, barium chloride, barium nitrate, barium oxide, and barium sulfide; the iron source is ferrous oxalate, ferric chl...

Embodiment 2

[0016] Selection: barium carbonate (BaCO3) (99.8%), ferrous oxalate (FeC2O4.2H2O) (99.06%), diammonium hydrogen phosphate (NH4H2PO4) (98%) as raw materials; according to the chemical formula Ba(FePO 4 ) 2 The mol ratio metering; Doping element source, according to the weight of barium iron phosphate that can be generated theoretically, add doping element scandium by 1% (weight percentage) calculation, scandium source is scandium chloride (98%); After mixing, in In anhydrous ethanol medium, high-speed ball milling at a speed of 200-800r / mimn for 15-20h, and drying at 105-120°C to obtain a precursor, place the dried precursor in a high-temperature furnace, and heat it for 300 Calcining at -450°C for 2-4 hours to obtain the scandium-doped barium iron phosphate product of the present invention.

Embodiment 3

[0018] Selection: barium carbonate (BaCO3) (99.8%), ferrous oxalate (FeC2O4.2H2O) (99.06%), diammonium hydrogen phosphate (NH4H2PO4) (98%) as raw materials; according to the chemical formula Ba(FePO 4 ) 2 The mol ratio is measured; the doping element source, according to the weight of the barium iron phosphate that can be generated theoretically, is calculated as 0.5% (weight percentage) to add the doping element scandium, and the scandium source is scandium chloride (98%); after mixing, in In anhydrous ethanol medium, high-speed ball milling at a speed of 200-800r / mimn for 15-20h, and drying at 105-120°C to obtain a precursor, place the dried precursor in a high-temperature furnace, and heat it for 300 Calcining at -450°C for 2-4 hours to obtain the scandium-doped barium iron phosphate product of the present invention.

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Abstract

The invention provides a preparation method of Sc doped barium iron phosphate. The chemical formula of barium iron phosphate is Ba(FePO4)2, raw materials of the barium source, the iron source and the phosphate source are metered according to the mol proportion of the chemical formula Ba(FePO4)2, an element source is doped, and the added doped element is metered according the weight of barium iron phosphate generated in theory and the weight percent within the 0.1 to 5% range; after the sources are mixed, is ball-ground for 15 to 20 hours in an ethanol medium at a high speed, and dried at the temperature of 105 to 120 DEG C to obtain a precursor; the precursor obtained through drying is put in a high-temperature furnace, is calcinated for 2 to 4 hours at a high temperature of 300 to 450 DEG C under the nitrogen atmosphere to obtain the Sc doped barium iron phosphate, the Sc doped barium iron phosphate is used as a reducing and deoxidizing agent, a food fresh-keeping agent, a battery raw material, metallurgy, alloy and glass production additives and the like, and has the characteristics of abundant raw material, low cost, environmental protection, no pollution and the like.

Description

technical field [0001] The scandium-doped barium iron phosphate of the invention belongs to a new material. Background technique [0002] At present, there are no reports and records of barium iron phosphate compounds. Through the retrieval of published patents, Internet information, books, periodicals, magazines, market research, etc., no patent documents identical to the technical products of the present invention have been found, nor have there been reports or sales of the technology or products of the present invention. Contents of the invention [0003] The object of the present invention is to propose a preparation method of scandium-doped barium iron phosphate. [0004] The preparation method of scandium-doped barium iron phosphate of the present invention is characterized in that: its chemical formula is: Ba(FePO 4 ) 2 , the raw materials of its barium source, iron source, and phosphate source, according to the chemical formula Ba(FePO 4 ) 2 The mol ratio is m...

Claims

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Application Information

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IPC IPC(8): C01B25/45H01M4/58
CPCY02E60/12Y02E60/10
Inventor 张健吴润秀王晶张雅静李杰李安平李先兰曾令城
Owner 曾令城