CN104692661A - Foaming agent used for process of making foamed glass from CRT screen glass - Google Patents

Foaming agent used for process of making foamed glass from CRT screen glass Download PDF

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Publication number
CN104692661A
CN104692661A CN201310656769.4A CN201310656769A CN104692661A CN 104692661 A CN104692661 A CN 104692661A CN 201310656769 A CN201310656769 A CN 201310656769A CN 104692661 A CN104692661 A CN 104692661A
Authority
CN
China
Prior art keywords
nitrate
glass
sb2o3
foaming agent
agent used
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201310656769.4A
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Chinese (zh)
Inventor
易家吉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN RENXIN GLASS MATERIALS Co Ltd
Original Assignee
TIANJIN RENXIN GLASS MATERIALS Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANJIN RENXIN GLASS MATERIALS Co Ltd filed Critical TIANJIN RENXIN GLASS MATERIALS Co Ltd
Priority to CN201310656769.4A priority Critical patent/CN104692661A/en
Publication of CN104692661A publication Critical patent/CN104692661A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C03C1/002—Use of waste materials, e.g. slags
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C11/00—Multi-cellular glass ; Porous or hollow glass or glass particles
    • C03C11/007—Foam glass, e.g. obtained by incorporating a blowing agent and heating

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

The invention provides a foaming agent used for a process of making foamed glass from CRT screen glass. The foaming agent comprises Sb2O3 and an oxidizing agent. The oxidizing agent is nitrate. The main reaction mechanism is: Sb2O3+2[O] to Sb2O5 to Sb2O3+O2, wherein the Sb2O3+2[O] to Sb2O5 is low temperature section reaction, and the reaction temperature is below 600DEG C; the Sb2O5 to Sb2O3+O2 is high temperature section reaction, and the reaction temperature is over 700DEG C, the nitrate is one of sodium nitrate, potassium nitrate, magnesium nitrate and calcium nitrate, or a mixture of multiple components. For the foaming agent, Sb2O3 and the nitrate are in a mass ratio of 7:1-5:1, and mass of the foaming agent added during production accounts for 0.05-0.4% of the total raw material mass. The foaming agent provided by the invention can generate evenly distributed bubbles with similar volume sizes in the glass matrix generating, and has great help for improving the mechanical, temperature and optical properties of foamed glass.

Description

A kind of whipping agent used in CRT panel glass manufacture foamed glass process
Technical field
The present invention relates to glass manufacturing area, specifically refer to a kind of whipping agent used in CRT panel glass manufacture foamed glass process.
Background technology
Come from the indicating meter using cathode tube, CRT accounts for 2/3 of computer or televisor total mass.Glass accounts for 85% of CRT total mass, mainly comprises panel glass, cone glass and neck glass.Along with the development of science and technology, liquid-crystal display progressively substitutes CRT monitor, the amount of discarded CRT is also increasing year by year, China is the big country as household electrical appliance production and consumption, scrap peak period for one that has entered CRT monitor, predict that annual superseded amount will reach more than 5,000,000.
Containing multiple hazardous and noxious substances in CRT glass, direct landfill can make the heavy-metal contaminated soil such as lead, cadmium and water body.Meanwhile, animals and plants absorb each heavy metal species by water body, build up enrichment with food chain, finally enter human body thus serious harm population health.Therefore the renewable resource of discarded CRT glass are treated as a problem demanding prompt solution.Scholars more both domestic and external have carried out experimental study to the resource utilization of CRT glass.Wherein, multicellular glass is a kind of is main raw material with glass, adds whipping agent, a kind of novel environment friendly foam materials that additive is fired under certain processing condition.The performances such as it has that unit weight is little, intensity is high, high-low temperature resistant, sound-absorbing and protection against corrosion, have been widely used in the industries such as building, pipeline and petrochemical complex.
Whipping agent makes the necessary raw material of foamed glass, selects different whipping agents and content thereof can have a huge impact the air hole structure of product and crystallization.
Summary of the invention
The invention provides a kind of whipping agent used in CRT panel glass manufacture foamed glass process.
Concrete technical scheme is: a kind of whipping agent used in CRT panel glass manufacture foamed glass process, comprises Sb 2o 3and oxygenant, described oxygenant is nitrate.
Principal reaction mechanism is: Sb 2o 3+ 2 [O] → Sb 2o 5→ Sb 2o 3+ O 2
Wherein: Sb 2o 3+ 2 [O] → Sb 2o 5for low-temperature zone reaction, temperature of reaction is below 600 DEG C;
Sb 2o 5→ Sb 2o 3+ O 2for high temperature section reaction, temperature of reaction is more than 700 DEG C.
Further, described nitrate is one-component in SODIUMNITRATE, saltpetre or magnesium nitrate, or the mixture of various ingredients.
Further, the proportioning of described whipping agent is: Sb 2o 3be 7:1 ~ 5:1 with the mass ratio of nitrate.
Further, the quality of the whipping agent added when producing accounts for 0.05 ~ 0.4% of overall raw material quality.
Whipping agent provided by the present invention, can generate and be evenly distributed, the bubble that volume size is close in glass basis, and for improving the machinery of foamed glass, temperature, optical property be very helpful.
Accompanying drawing explanation
Fig. 1 is the optical photograph of sample.
Fig. 2 is the SEM photo of sample.
Embodiment
Describe embodiments of the invention in detail below in conjunction with accompanying drawing, it should be noted that, the present embodiment is narrative, is not determinate, can not limit protection scope of the present invention with this.
Embodiment 1:
A kind of whipping agent used in CRT panel glass manufacture foamed glass process:
Composition: Sb 2o 3: 5g, KNO 3: 25g, CRT panel glass: 60kg.
Embodiment 2:
A kind of whipping agent used in CRT panel glass manufacture foamed glass process:
Composition: Sb 2o 3: 5g, NaNO 3: 35g, CRT panel glass: 80kg.
Embodiment 3:
A kind of whipping agent used in CRT panel glass manufacture foamed glass process:
Composition: Sb 2o 3: 5g, Mg (NO 3) 2: 25g, CRT panel glass: 7kg.
Embodiment 4:
A kind of whipping agent used in CRT panel glass manufacture foamed glass process:
Composition: Sb 2o 3: 5g, KNO 3: 35g, CRT panel glass: 10kg.
Embodiment 5:
A kind of whipping agent used in CRT panel glass manufacture foamed glass process:
Composition: Sb 2o 3: 5g, NaNO 3: 30g, CRT panel glass: 70kg.
Embodiment 6:
A kind of whipping agent used in CRT panel glass manufacture foamed glass process:
Composition: Sb 2o 3: 5g, Mg (NO 3) 2: 30g, CRT panel glass: 8.7kg.

Claims (4)

1. use the whipping agent in CRT panel glass manufacture foamed glass process, it is characterized in that: comprise Sb 2o 3and oxygenant, described oxygenant is nitrate.
2. a kind of whipping agent used in CRT panel glass manufacture foamed glass process according to claim 1, is characterized in that: described nitrate is one-component in SODIUMNITRATE, saltpetre or magnesium nitrate, or the mixture of various ingredients.
3. a kind of whipping agent used in CRT panel glass manufacture foamed glass process according to claim 1 and 2, is characterized in that: the proportioning of described whipping agent is: Sb 2o 3be 7:1 ~ 5:1 with the mass ratio of nitrate.
4. a kind of whipping agent used in CRT panel glass manufacture foamed glass process according to claim 1, is characterized in that: the quality of the whipping agent added when producing accounts for 0.05 ~ 0.4% of overall raw material quality.
CN201310656769.4A 2013-12-05 2013-12-05 Foaming agent used for process of making foamed glass from CRT screen glass Pending CN104692661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310656769.4A CN104692661A (en) 2013-12-05 2013-12-05 Foaming agent used for process of making foamed glass from CRT screen glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310656769.4A CN104692661A (en) 2013-12-05 2013-12-05 Foaming agent used for process of making foamed glass from CRT screen glass

Publications (1)

Publication Number Publication Date
CN104692661A true CN104692661A (en) 2015-06-10

Family

ID=53340268

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310656769.4A Pending CN104692661A (en) 2013-12-05 2013-12-05 Foaming agent used for process of making foamed glass from CRT screen glass

Country Status (1)

Country Link
CN (1) CN104692661A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105884194A (en) * 2016-03-30 2016-08-24 青岛昱泰药用包装科技有限公司 Method for manufacturing brown ultraviolet cutoff glass from abandoned CRT front-screen glass
RU2698388C1 (en) * 2018-07-11 2019-08-26 Общество с ограниченной ответственностью "Аксиома" Method for production of granulated foamed glass

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105884194A (en) * 2016-03-30 2016-08-24 青岛昱泰药用包装科技有限公司 Method for manufacturing brown ultraviolet cutoff glass from abandoned CRT front-screen glass
CN105884194B (en) * 2016-03-30 2018-06-08 青岛昱泰药用包装科技有限公司 The method for manufacturing brown ultraviolet cutoff glass with panel glass before discarded CRT
RU2698388C1 (en) * 2018-07-11 2019-08-26 Общество с ограниченной ответственностью "Аксиома" Method for production of granulated foamed glass

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PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150610