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Microwave coprecipitation method for preparing nano glaze of lead metaborate

A lead metaborate and co-precipitation technology is applied in the field of preparation of nano borate, which can solve the problem that nano lead metaborate powder has not been reported.

Inactive Publication Date: 2005-01-12
皮晓天
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  • Application Information

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Problems solved by technology

At present, there is no report on the synthesis of nano-lead metaborate powder at home and abroad

Method used

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  • Microwave coprecipitation method for preparing nano glaze of lead metaborate
  • Microwave coprecipitation method for preparing nano glaze of lead metaborate
  • Microwave coprecipitation method for preparing nano glaze of lead metaborate

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Embodiment Construction

[0024] The microwave co-precipitation preparation method of nano-metaborate glaze is realized by the following steps:

[0025] (1) taking by weighing mol ratio is that sodium borate and lead nitrate of 1: 1 are mixed with 20% sodium borate aqueous solution and 20% lead nitrate aqueous solution respectively;

[0026] (2) Weigh 2-ethylhexyl sodium sulfosuccinate (AOT) and add it to the above prepared lead nitrate aqueous solution so that the concentration of 2-ethylhexyl sodium sulfosuccinate is 2%, and fully stir;

[0027] (3) Slowly inject the above-mentioned sodium borate aqueous solution into the mixed solution of 2-ethylhexyl sodium sulfosuccinate and lead nitrate aqueous solution, and fully stir to produce precipitation, keep the temperature at 35-45 degrees, and react for 1.5-2h; then 500w Microwave irradiation intermittent treatment for 4-6 minutes, so that the solution temperature is 80-100 degrees;

[0028] (4) the above-mentioned product is centrifuged to separate th...

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Abstract

The invention relates to prepn. method of nanometre borate. The processing steps are: (1) taking Boratex and lead nitrate with mole ratio 1:1 to prepare 20 percent of aqueous solution; (2) taking 2-ethyl sulfo group sodium succinate to added into said lead nitrate aqueous solution to change density to 2 perent; (3) slowly pouring said sodium succinate into mixed solution to be fully stirred to create precipitation, constant temp. 35-45 deg.C, reaction time 1.5-2 hours, then to be batch processed by 500 W microwave illuminating 4-6 minutes, temp of solution is 80-100 deg.C; (4) said product is centrifugated to generate precipitant which is washed by distilled water two times and by absolute ethyl alcohol three times to produce nanometre lead metaborate; (5) drying said nanometre lead metaborate 10 hours in 60 deg.C vacuum to produce nanometre lead metaborate frit.

Description

technical field [0001] The invention relates to a preparation method of nano borate. Background technique [0002] Due to its small size, nanomaterials can be compared with de Broglie wavelength, and have many special properties; such as quantum size effect, surface effect and small size effect [1][2] . Therefore, it presents many peculiar physical and chemical properties, and has broad application prospects in many fields, and is considered to be the most promising material in the 21st century. Lead borate is widely used. In addition to the application in inorganic materials such as glass, ceramic glaze, and enamel industry, nano-lead metaborate powder has excellent performance in wear resistance and as a luminescent substrate. After the lead borate is nano-sized, it not only optimizes its application performance, but also expands its application range. According to reports, Wu Lijun et al prepared Li by Sol-Gel method 2 B 4 o 7 film [3] , Renzhi Ma et al. prepared n...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/00C03C8/10C04B41/86
Inventor 皮晓天
Owner 皮晓天
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