Device and method for preparing high-purity chalcogenide glass

A high-purity sulfur and glass technology, applied in glass furnace equipment, glass manufacturing equipment, manufacturing tools, etc., can solve the problems of complex impurity removal process, large absorption loss, and high impurity content in chalcogenide glass, achieving simple process and eliminating impurities. absorption effect

Inactive Publication Date: 2013-02-20
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a device and method for preparing high-purity chalcogenide glass. The device improves the distillation preparation process of chalcogenide glass, and solves t

Method used

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  • Device and method for preparing high-purity chalcogenide glass
  • Device and method for preparing high-purity chalcogenide glass
  • Device and method for preparing high-purity chalcogenide glass

Examples

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Example Embodiment

[0034] When using the device of the present invention to prepare high-purity chalcogenide glass, a clean quartz tube with a hydroxyl content of less than 10 ppm is selected, and the angle between the horizontal connecting tube and the first vertical tube is 120 degrees, where the first vertical tube is The raw material pipe, the second vertical pipe is the receiving pipe, and the preparation method of high-purity chalcogenide glass specifically includes the following steps:

[0035] (1) Weigh elemental raw materials with a purity of more than 99.999% according to the formula for making sulfur-based glass. The sulfur-based elemental raw materials are placed in the raw material tube, and the other elemental raw materials are placed in the receiving tube, and 50-500 ppm Oxygen agent, add 200~500ppm of hydroxyl deoxidizer to the raw material pipe; among them, the deoxidizer is aluminum element or magnesium element, and the hydroxyl deoxidizer is TeCl 4 Or AlCl 3 .

[0036] (2) Connect ...

Example Embodiment

[0045] Example 1: The component is As 2 S 3 Take the high-purity chalcogenide glass as an example, including the following specific steps:

[0046] (1) Clean the device with ultrasonic for 30 minutes to remove particulate impurities attached to the inner wall, then soak it in hydrofluoric acid for 2 minutes to remove other harmful ions attached to the inner wall, rinse it with deionized water, and place it at a high temperature protected by nitrogen. In the furnace, bake at 1000°C for 10 hours to remove free water and part of structured water attached to the inner wall, and then slowly drop to room temperature;

[0047] (2) Select the elemental raw materials arsenic and sulfur with a purity of 99.999%, and accurately weigh the raw materials according to the formula. The sulfur is placed in the raw material tube, the arsenic is placed in the receiving tube, and 50ppm of aluminum is placed in the receiving tube. TeCl 4 Place in the raw material pipe;

[0048] (3) Connect the opening o...

Example Embodiment

[0053] Example 2: Taking the composition as Ge 28 Sb 12 Se 60 Take the high-purity chalcogenide glass as an example, including the following specific steps:

[0054] (1) Clean the device with ultrasonic for 30 minutes to remove particulate impurities attached to the inner wall, then soak it in hydrofluoric acid for 2 minutes to remove other harmful ions attached to the inner wall, rinse it with deionized water, and place it at a high temperature protected by nitrogen. In the furnace, bake at 1000°C for 10 hours to remove free water and part of structured water attached to the inner wall, and then slowly drop to room temperature;

[0055] (2) Select elemental raw materials germanium, antimony and selenium with a purity of 99.999%, and accurately weigh the raw materials according to the formula, where selenium is placed in the raw material tube, germanium and antimony are placed in the receiving tube, and 300ppm of aluminum is introduced into the receiving tube. 200ppm TeCl 4 Place i...

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Abstract

The invention provides a device and a method for preparing high-purity chalcogenide glass. By means of the device and the method, the technical problem that the chalcogenide glass prepared in the prior art is high in purity content, large in absorbing consumption, complex in purification and the like. The device comprises a first vertical pipe, a second vertical pipe, a connection pipe and a third vertical pipe, wherein the upper end of the third vertical pipe is the only opening of the device, the lower ends of the first vertical pipe and the second vertical pipe are both enclosed, and the upper ends of the first vertical pipe and the second vertical pipe are communicated with each other through the connection pipe; the connection pipe is perpendicular to the first vertical pipe and the second vertical pipe, or an included angle formed by the connection pipe and the first vertical pipe is an obtuse angle; and the lower end of the third vertical pipe is communicated with the connection pipe. By means of a process for repeatedly distilling chalcogenide simple substance raw materials, water impurities containted in the chalcogenide simple substance raw materials is eliminated, and the method and the device are simple in process, no secondary pollution can be guided in during preparation, and impurity absorbing of the chalcogenide glass is remarkably eliminated.

Description

technical field [0001] The invention relates to a device and method for preparing high-purity chalcogenide glass, which can be used for the purpose of removing impurities from high-purity chalcogenide glass, especially for impurities such as carbon, hydrogen and oxygen that have serious absorption in the middle and far infrared. Background technique [0002] Chalcogenide glass is a special type of glass different from traditional oxide glass. It has excellent mid-to-far infrared transmission ability, high third-order nonlinear refractive index, good rare earth doping ability, transmission in mid-to-far infrared, and all-optical switching. , ultra-low loss optical fiber communication, mid-infrared laser dielectric materials and other fields have broad application prospects. Chalcogenide glass has a very low theoretical loss, about 0.01-0.1dB / km. However, due to the influence of the preparation process and impurities, the loss of the prepared chalcogenide glass is much greater...

Claims

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Application Information

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IPC IPC(8): C03B5/16C03C1/02
Inventor 彭波许彦涛郭海涛陆敏韦玮
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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