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Method for detecting diboron trioxide content in camsellite

A technology of boron trioxide and content, applied in material excitation analysis, thermal excitation analysis and other directions, can solve the problems of difficult to accurately judge the color of the end point, cumbersome operation process, etc.

Inactive Publication Date: 2010-01-20
武钢集团有限公司
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Problems solved by technology

Because the influence of the matrix in slag on diboron trioxide is not as complicated as that in boron magnesium ore, this method saves the separation of interfering substances, filtration of insolubles and washing of precipitates, but the operation process is also cumbersome, and the end point color in the titration process is more difficult Accurate judgment

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  • Method for detecting diboron trioxide content in camsellite

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Embodiment Construction

[0014] The present invention will be described below in conjunction with the accompanying drawings and specific embodiments.

[0015] (1) Soak the glassware used in the test with soil water solution (1+1) for more than 24 hours to reduce the value of the blank test.

[0016] (2) Weigh 0.2000g (accurate to 0.0002g) boron-magnesium ore sample, put it into a heating container with a reflux condenser, the heating container is sealed with the reflux condenser, and carry out a blank test along with the sample. Heat at a low temperature on a temperature-controllable heater, preferably put it into a 250mL ground-mouth flask, add 15mL hydrochloric acid (1+1), connect a reflux condenser with a ground-mouth interface, and adjust the heating in a temperature-adjusting electric heating mantle Bring the test solution to a slight boil for 30 minutes, let all the boron trioxide in the test material dissolve completely and collect it in the flask, rinse the reflux condenser with water, transfe...

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Abstract

The invention discloses a method for detecting the diboron trioxide content in camsellite, which comprises the following steps: processing and washing a glass ware used in detection by acid; placing a camsellite test material into a cleaned heating container provided with a backflow condensing pipe to carry out a blank test along with the test material; adding hydrochloric acid, heating and dissolving the test material at low temperature on a low-temperature heater till the test material is completely dissolved; collecting test material solution into a volumetric bottle to be fixed to certain volume; dissolving a proper amount of high-purity iron in the same acid medium, adopting 50 percent of equivalent iron bases as a base and matching calibration solution containing more than 4 percent of sample boron in mass to prepare a calibration curve; directly carrying out the spectral intensity measurement of a boron element in the test material solution, blank solution and the calibration curve on an electric inductive coupling plasma emission spectrometer by adopting a boron analysis spectral line which is not influenced by iron base content and calculating the mass percentage of the boron element. The method has simple operation step and high analysis result precision and accuracy.

Description

technical field [0001] The invention relates to a method for measuring the content of diboron trioxide in boron magnesium ore. Background technique [0002] Boron magnesium ore is the raw material for extracting boron. The boron trioxide content of boron magnesium ore is generally from 3% to 30%. When the boron trioxide content in boron magnesium ore is 15%-30%, this ore is suitable for making Boric acid is used as raw material, and boron-magnesium ores of other grades are suitable for producing boron and boride raw materials. Diboron trioxide in boron magnesium ore is one of the important pricing elements in the trade of boron magnesium ore, and also one of the important parameters guiding the production process in the production of boron magnesium ore. The elements can be quickly analyzed to provide the market with ores of different grades to meet the requirements of different users. Therefore, it is particularly important to quickly and accurately determine boron trioxi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/73
Inventor 闻向东张穗忠夏念平李江文谢芬张前香赵希文杨艳文斌杨芸
Owner 武钢集团有限公司
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