Method for clarifying and decoloring float glass

A float glass and decolorization technology, used in glass furnace equipment, glass manufacturing equipment, manufacturing tools, etc., can solve the problems of reducing glass transmittance, high cost of rare earth oxides, and affecting glass quality.

Inactive Publication Date: 2011-06-01
INNER MONGOLIA UNIV OF SCI & TECH
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Most of the above inventions utilize the addition of a large amount of cerium oxide and sulfate as clarifiers, or the addition of MnO 2 、Nd 2 o 3 , La 2 o 3 etc., to achieve the purpose of physical and c

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 clarifying and decoloring float glass
  • Method for clarifying and decoloring float glass
  • Method for clarifying and decoloring float glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0074] The present invention will be described in more detail by the following examples, but the present invention is not limited to the following examples.

[0075] All use the basic batching of ordinary float glass in the following examples, and the contents of each component are as shown in Table 1:

[0076] Table 1 embodiment basic batching ingredient list / % (by weight percentage)

[0077]

[0078]

[0079] Introduce the above basic components through sandstone, dolomite, limestone, and soda ash, and add the required La 2 (CO 3 ) 3 、Ce 2 (CO 3 ) 3 、Pr 2 (CO 3 ) 3Or add the rare earth enrichment and Glauber's salt after the initial separation of Baotou rare earth mine, mix the batching materials thoroughly, the total mass is 100g, put them into a corundum crucible, and then put them on the platform in the glass melting furnace. After 5 hours, melt the After the molten glass is cast onto a steel plate coated with zirconium powder, it is placed in a holding fur...

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
Thicknessaaaaaaaaaa
Flexural strengthaaaaaaaaaa
Microhardnessaaaaaaaaaa
Login to view more

Abstract

The invention provides a method for clarifying and decoloring float glass. On the basis of the common float glass, a lanthanum carbonate [La2(CO3)3], cerium carbonate [Ce2(CO3)3], praseodymium carbonate [Pr2(CO3)3] and sodium sulfate (NaSO4) composite clarifying and decoloring agent is added, or rare earth richment (lanthanum cerium carbonate richment or lanthanum cerium praseodymium carbonate richment) which is initially separated from rare-earth mineral in Baotou and sodium sulfate are added, so that the thickness of the melted glass is 4 millimeters, visible light transmissivity in wavelength range of 380 to 780 nm is over 94 percent, whiteness is less than 0.085, breaking strength is more than 310 MPa, and microhardness is more than 8,100 MPa. The glass has high visible light transmissivity, small whiteness value, high breaking strength and high microhardness. The quality of the white float glass is obviously improved. The method can be widely applied in the fields of building glass, photovoltaic electric technology, experimental apparatuses and the like.

Description

Technical field: [0001] The invention relates to a method for clarifying and decolorizing float glass, which can be widely used in architectural glass, photovoltaic technology and experimental instruments, and belongs to the field of glass preparation. Background technique: [0002] In recent years, with the rapid development of my country's economy, the level of optoelectronic technology and experimental research has been greatly improved, and the market demand for ultra-clear and ultra-hard glass has expanded. However, the production of ultra-clear glass is difficult and costly, and the supply exceeds demand. As we all know, the color of white float glass is caused by the iron oxide in the raw material, iron in the glass as Fe 2+ and Fe 3+ Exist, Fe 2+ Make the glass blue-green, Fe 3+ Make the glass yellow-green, Fe 2+ is Fe 3+ Twelve times the coloring power, the color of the glass is determined by Fe 2+ and Fe 3+ The balance state is determined. [0003] At prese...

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
IPC IPC(8): C03B5/225
Inventor 李梅柳召刚张晓伟胡艳宏王觅堂张永强
Owner INNER MONGOLIA UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap