Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for determining boron content in boron carbide-zirconium 2 pellet

A determination method and technology of boron content, applied in the preparation of test samples, chemical analysis by titration, etc., can solve problems such as interference and poor precision, achieve high precision and accuracy, optimize washing times, measure Easy and fast effect

Inactive Publication Date: 2019-03-29
CHINA NUCLEAR BAOTOU GUANGHUA CHEM IND
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Atomic absorption spectrometry has its unique advantages, but there will be some variable factors when the sample solution is atomized, and the precision will be worse than that of spectrophotometry. At the same time, there are interference problems that are currently difficult to solve for the analysis of samples with complex matrices.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for determining boron content in boron carbide-zirconium 2 pellet
  • Method for determining boron content in boron carbide-zirconium 2 pellet
  • Method for determining boron content in boron carbide-zirconium 2 pellet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0071] A method for assaying boron content in boron carbide-zirconium pellets, comprising the following steps:

[0072] Step 1: Sample Dissolution

[0073] Weigh m = 0.2g sample and place it in a platinum crucible, add 3g of anhydrous sodium carbonate and 0.1g of potassium nitrate, stir evenly and then cover with 1g of anhydrous sodium carbonate, half open the crucible cover to allow the decomposed gas to escape ;

[0074] Put the crucible into the muffle furnace, treat it at 650°C for 2 hours, 700°C for 1 hour, and 750°C for 1 hour, then heat it up to 900°C for 30 minutes and take it out;

[0075] Rotate the crucible to make the melt adhere to the crucible wall and cool it down; wash the outer wall of the crucible with water, put the crucible into a 250mL beaker filled with 100mL of 5% hydrochloric acid solution, shake the beaker constantly to dissolve the melt, and wait until the melt is completely dispersed Transfer to a 250mL volumetric flask, wash the crucible and cruci...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
recovery rateaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of boron content determination, and particularly discloses a method for determining boron content in a boron carbide-zirconium 2 pellet. The method comprises the following steps of step 1: sample dissolution; step 2: precipitation washing; step 3: sample determination; step 4: preparation for a blank solution; and step 5: result calculation. According to the method for determining the boron content in the boron carbide-zirconium 2 pellet, the boron content in the boron carbide-zirconium 2-pellet is determined by mannitol dissociation acid-base titration method. The measurement is simple and rapid, and the precision and accuracy are high.

Description

technical field [0001] The invention belongs to the technical field of boron content determination, and in particular relates to a method for determining boron content in boron carbide-zirconium pellets. Background technique [0002] Boron carbide-zirconium 2 pellets are made of boron carbide powder and zirconium 2 alloy powder mixed in a certain proportion and then calcined at high temperature. The hardness of boron carbide is second only to diamond, and it is insoluble in acid and alkali. The boron carbide-zirconium 2 pellets calcined at high temperature have stable chemical properties and are hardly soluble in acid and alkali. At present, there is no public report on the research results on the determination method of boron content in boron carbide-zirconium 2 pellets. [0003] Currently published boron content determination methods include visible spectrophotometry, electrochemical analysis, atomic absorption spectrometry, inductively coupled plasma emission spectrometr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/16G01N1/44G01N1/38G01N1/28
CPCG01N1/28G01N1/38G01N1/44G01N31/16
Inventor 潘翠翠纪秋宇张雨虹张庆明
Owner CHINA NUCLEAR BAOTOU GUANGHUA CHEM IND