Method for measuring molten salt chloride residues and recycling chemical components in regenerated substances

A technology of chemical composition and chloride, which is applied in the field of determination of chemical composition in molten salt chloride residues and recycled biomass, achieving good accuracy, simplifying operation steps, and shortening the inspection process

Inactive Publication Date: 2015-04-22
PANGANG GROUP RESEARCH INSTITUTE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

An unseen analytical method for determining the chemical composition of molten salt chloride residues produced in the production process of titanium tetrachloride and its recycled biomass

Method used

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  • Method for measuring molten salt chloride residues and recycling chemical components in regenerated substances
  • Method for measuring molten salt chloride residues and recycling chemical components in regenerated substances
  • Method for measuring molten salt chloride residues and recycling chemical components in regenerated substances

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preparation example Construction

[0019] a. Preparation of the solution to be tested: Weigh the sample to be tested, dissolve the sample to be tested completely with dilute nitric acid solution, and dilute it with water to form a solution to be tested, wherein the sample to be tested is molten salt chloride residue or molten salt chloride The residue is regenerated, and the solid-liquid dilution ratio between the weighed mass of the sample to be tested in the solution to be tested and the diluted constant volume is 0.6 to 1.0 g / L;

[0020] b. Detection of chemical components: adopt inductively coupled plasma atomic emission spectrometry (ICP-OES) to measure the content of chemical elements in the solution to be tested, wherein the chemical elements are potassium, sodium, iron, magnesium, manganese, calcium, At least one of chromium, nickel, copper, cobalt, vanadium, titanium, lead, arsenic, silicon, phosphorus, and molybdenum.

[0021] The present invention adopts ICP-OES, which can quickly and simultaneously ...

Embodiment 1

[0031] Weigh 0.2g of molten salt chloride residue, add 10mL (1+3) dilute nitric acid solution, heat at high temperature and quickly dissolve the sample until it is completely dissolved, dilute it with water and dilute it in a 200mL volumetric flask after cooling to form a sample solution to be tested, and use inductively coupled plasma Bulk atomic emission spectrometry (ICP-OES) directly determines the content of chemical elements such as potassium, sodium, iron, magnesium, manganese, calcium, chromium, nickel, vanadium, titanium, phosphorus, copper, and lead in the sample solution to be tested. Among them, the ICP-OES detection parameters were set as follows: RF radio frequency power 1050W, auxiliary gas flow rate 1.0L / min, peristaltic pump pump speed 60r / min, observation height 11.5mm, atomizer pressure 0.24MPa, measurement integration time 15s.

Embodiment 2

[0033] Weigh 0.3g of molten salt chloride residue, add 15mL (1+3) dilute nitric acid solution, the sample is completely dissolved and cooled, then diluted with water and fixed to volume in a 500mL volumetric flask to form a sample solution to be tested, using inductively coupled plasma atomic emission The spectroscopic method (ICP-OES) directly determines the content of chemical elements such as potassium, sodium, iron, magnesium, manganese, calcium, chromium, nickel, vanadium, titanium, phosphorus, copper, and lead in the sample solution to be tested. Among them, the ICP-OES detection parameters were set as follows: RF radio frequency power 1050W, auxiliary gas flow rate 1.0L / min, peristaltic pump pump speed 60r / min, observation height 11.5mm, atomizer pressure 0.24MPa, measurement integration time 15s.

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Abstract

The invention relates to a method for measuring molten salt chloride residues and recycling chemical components in regenerated substances, and belongs to the technical field of detection analysis of element component content. The method comprises the following steps: weighing a to-be-measured sample, dissolving the to-be-measured sample with a dilute nitric acid solution, adding water to dilute in a special solid-liquid dilution ratio to form a to-be-measured solution; and then, measuring the content of chemical elements such as potassium, iron, magnesium, manganese, calcium, chromium, nickel, vanadium, titanium, copper and lead in the to-be-measured solution through an inductive coupling plasma atomic emission spectroscopy. The method disclosed by the invention can be used for simultaneously obtaining the contents of molten salt chloride residues and the chemical element components in the recycled generated substance sample by one step, simple, quick, few in operation step, few in disturbing influence factor, high in measuring efficiency for the substrate components and trace impurities, short in inspection period and low in analysis cost.

Description

technical field [0001] The invention relates to a method for measuring chemical components in molten salt chloride residues and recovered regenerated organisms, and belongs to the technical field of detection and analysis of element component content. Background technique [0002] Titanium tetrachloride is the raw material for the production of titanium sponge and titanium dioxide by oxidation method. Titanium tetrachloride is further melted and cast to obtain titanium ingots, that is, industrial titanium, and then it can be processed into corresponding titanium materials, titanium powder, titanium alloys, and other titanium components. Therefore, four Titanium chloride is a key production link in the titanium industry. At present, the production process of titanium tetrachloride mainly includes molten salt chlorination method and boiling chlorination method, both of which use high-titanium slag, artificial rutile and other titanium slag under high temperature conditions (mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/73G01N1/38
Inventor 成勇袁金红
Owner PANGANG GROUP RESEARCH INSTITUTE CO LTD
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