Method for preparing iron barium phosphate doped with promethium

A technology of barium iron phosphate and phosphoric acid, applied in chemical instruments and methods, phosphorus compounds, inorganic chemistry and other directions, can solve problems such as no technology or product reports or sales, no discovery, etc., and achieves low production cost and low production cost. Effect

Inactive Publication Date: 2012-10-10
韦丽梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After searching for published patents, Internet information, books, periodicals, magazines, market research, etc., no patent documents identical to the t

Method used

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Embodiment 1

[0011] The preparation method of promethium-doped barium iron phosphate of the present invention is characterized in that: the raw materials 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 promethium-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...

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, can generate barium iron phosphate weight meter according to theory, add doping element promethium by 1% (weight percentage) calculation, promethium is promethium chloride (98%); After mixing, in In water ethanol medium, high-speed ball milling at 200-800r / mimn for 15-20h, drying at 105-120°C to obtain the precursor, put the dried precursor in a high-temperature furnace, and in a nitrogen atmosphere, after 300- Calcined at 450°C for 2-4 hours to obtain the promethium-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 metering; Doping element source, can generate barium iron phosphate by weight in theory, add doping element promethium by 0.5% (percentage by weight), and promethium is promethium chloride (98%); After mixing, in the absence of In water ethanol medium, high-speed ball milling at 200-800r / mimn for 15-20h, drying at 105-120°C to obtain the precursor, put the dried precursor in a high-temperature furnace, and in a nitrogen atmosphere, after 300- Calcined at 450°C for 2-4 hours to obtain the promethium-doped barium iron phosphate product of the present invention.

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PUM

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Abstract

The invention provides a method for preparing iron barium phosphate doped with promethium. A chemical formula of the iron barium phosphate doped with the promethium is Ba (FePO4) 2. The method for preparing the iron barium phosphate doped with the promethium includes that raw materials including a barium source, an iron source and a phosphate radical source are metered according to a mol proportion of the chemical formula of Ba(FePO4)2; the addition weight of doping elements of a doping element source accounts for 0.1-5% of the theoretical weight of the iron barium phosphate capable of being generated; and after the raw materials and the doping elements are mixed, high-speed ball-milling is carried out for the mixture in an ethanol medium for 15 to 20 hours, the mixture is dried at the temperature ranging from 105 DEG C to 120 DEG C to obtain a precursor, the precursor obtained in the drying process is placed into a high-temperature furnace, and is calcined at the high temperature ranging from 300 DEG C to 450 DEG C in nitrogen atmosphere for 2 to 4 hours to obtain the iron barium phosphate doped with the promethium. The iron barium phosphate doped with the promethium is mainly used as a reducing agent, a deoxidizer, a food preservative, a raw material of an electronic element or a battery, an additive for smelting, alloy and glass production and the like, and the method has the advantages of sufficient raw materials, low cost, environmental protection, zero pollution and the like.

Description

technical field [0001] The promethium-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 invention is to: propose a kind of preparation method of promethium-doped barium iron phosphate. [0004] The preparation method of promethium-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 rat...

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韦丽梅
Owner 韦丽梅
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