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Raman Spectroscopy In-Situ Measurement Method and Measurement Device of High Temperature Volatile Corrosive Molten Salt

A technology of Raman spectroscopy and in-situ measurement, which is applied in the directions of measuring devices, Raman scattering, and material excitation analysis. Controllable temperature point, uniform heating effect

Active Publication Date: 2019-09-20
EAST CHINA UNIV OF SCI & TECH
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Problems solved by technology

[0008] In summary, using traditional in-situ Raman testing equipment to test high-temperature corrosive molten salts is difficult and costly, but the effect is not ideal

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  • Raman Spectroscopy In-Situ Measurement Method and Measurement Device of High Temperature Volatile Corrosive Molten Salt
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  • Raman Spectroscopy In-Situ Measurement Method and Measurement Device of High Temperature Volatile Corrosive Molten Salt

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Embodiment Construction

[0034] A kind of Raman spectroscopic in-situ measurement method that is used for high-temperature volatilization corrosive molten salt, uses a kind of Raman spectroscopic in-situ measurement device, comprises Raman spectrometer, corner objective lens, external heating furnace (such as Figure 1-2 As shown), the special quartz crucible 9, the laser is emitted by the Raman spectrometer, the corner objective lens is connected to the Raman spectrometer to export the laser light, the corner objective lens probe extends into the central hole of the cooling water furnace door, and the laser light shines on the quartz crucible loaded with samples , and collect the signal through the original optical path.

[0035] The above-mentioned external heating furnace also includes: a furnace body 4, a heating element 7, a thermocouple 5, a water-cooled furnace door 1, a program temperature control instrument (control cabinet), and the heating element and the thermocouple are respectively connect...

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Abstract

The invention discloses a device and method for in-situ measurement of the Raman spectrum of high-temperature volatile corrosive molten salt, including: a DXR-Raman Microscope and its matching long-angle objective lens, and There are external heating furnaces (including furnace body, heating elements, thermocouples, cooling water furnace doors, temperature control equipment components, etc.) and quartz sealed crucibles. The design of the external heating furnace and quartz crucible eliminates the limitation of sample amount during the test of volatile corrosive molten salt samples and expands the measurement temperature range to ambient temperature -1873.5K. The use of the external heating furnace with the Raman long corner objective lens can avoid Damage to Raman optical instruments caused by high temperature and volatile and corrosive molten salts during high-temperature in-situ testing. The method of the invention is simple, and the required equipment, the external heating furnace, is cheaper than the micro-microscopic heating stage of the Raman spectrometer, and is more suitable for high-temperature in-situ Raman measurements of volatile corrosive molten salts.

Description

technical field [0001] The invention belongs to the field of Raman spectrum inspection, and relates to a spectroscopic measurement device for the theoretical basis research of industrial magnesium electrolyte molten salt system, in particular to a Raman spectroscopic in-situ measurement method for high-temperature volatile corrosive molten salts, specifically It is a method suitable for Raman spectroscopy measurement of high-temperature volatile corrosive molten salts combined with DXR micro-laser Raman spectroscopy and long-corner objective lenses. Background technique [0002] Magnesium products are widely used in the fields of national economy, environmental protection, functional materials and high technology, so their development and utilization have attracted widespread attention in the industry. On the other hand, my country is a country with many salt lakes, and the salt lake brine contains rich magnesium resources. The magnesium chloride in the old brine can be elec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/65G01N21/01
CPCG01N21/01G01N21/65
Inventor 路贵民邬洁王佳于建国
Owner EAST CHINA UNIV OF SCI & TECH
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