molten glass corrosion resistance of immersed combustion

USAApparatus for measuring the resistivity of

USA US445184A USA USA US A US A US A US 445184 A US445184 A US 445184A US A US A US A US A US A US A Authority US United States Prior art keywords resistivity molten glass pair glass electrode Prior art date Legal status (The legal status is an assumption and is not a The device for melting glass includes a compartment 1 for melting with a discharge throat 11 defined on top by a mobile carrier 16 having an upper part 18 extending upward above the level of glass and a lower part 17 intended to be totally immersed in the molten glass. Faces of the lower part are formed of a metal or an alloy of metals resistant to corrosion by the molten glass.

USAElectric furnace for melting glassGoogle

The device for melting glass includes a compartment 1 for melting with a discharge throat 11 defined on top by a mobile carrier 16 having an upper part 18 extending upward above the level of glass and a lower part 17 intended to be totally immersed in the molten glass. Faces of the lower part are formed of a metal or an alloy of metals resistant to corrosion by the molten glass. USA US445184A USA USA US A US A US A US 445184 A US445184 A US 445184A US A US A US A US A US A US A Authority US United States Prior art keywords resistivity molten glass pair glass electrode Prior art date Legal status (The legal status is an assumption and is not a

Addition of ceramics materials to improve the corrosion

Jun 25 2019 · The corrosion resistance of high-purity alumina ceramics immersed in acid solutions (H 2 SO 4 HCl HNO 3) and alkaline solutions (NaOH KOH Na 2 O Ca(OH) 2) is determined by the degree of solubility of impurities contained within the grain limits (MgO CaO SiO FeO and Na 2 O). Due to the corrosion mechanism produced is a type of Molten glass at high temperatures is a corrosive liquid. In fact this characteristic Many factors contribute to the corrosion resistance of a refractory material. For measured 0.395 by 0.595 inches in cross-section and was long enough to be immersed in the molten glass to a depth of 1 inch (Figure 3.1). The finished test coupon was

USB2Submerged combustion burners and melters

Submerged combustion burners having a burner body a burner tip connected thereto. Submerged combustion melters including the burners and methods of using them to produce molten glass. The burner body has an external conduit and first and second internal conduits substantially concentric therewith forming first and second annuli for passing a cooling fluid therethrough. Nov 01 2016 · The molten glass corrosion is similar to that caused by the molten salt where metallic elements are easily oxidized by the dissolved oxygen or other oxidizing agents in glass for example Fe 3 . Meanwhile the reaction products are normally non-protective due to the high solubility in melts and a flowing of molten glass.

USAElectric furnace for melting glassGoogle

The device for melting glass includes a compartment 1 for melting with a discharge throat 11 defined on top by a mobile carrier 16 having an upper part 18 extending upward above the level of glass and a lower part 17 intended to be totally immersed in the molten glass. Faces of the lower part are formed of a metal or an alloy of metals resistant to corrosion by the molten glass. The influence of polyvalent metal cations on the corrosion rate of molybdenum in molten glass Ine Vanmoortel a Joost De Strycker b Eduard Temmerman a Annemie Adriaens a a Department of Analytical Chemistry Ghent University Krijgslaan 281-S12 B-9000 Ghent Belgium b Arcelor InnovationR D OCAS N.V. J. Kennedylaan 3 B-9060 Zelzate Belgium

Refractories for Glass KilnsRongsheng Kiln Refractory

Glass melting furnace refractory materials should have excellent molten glass and gases corrosion resistance. Besides they should also have enough refractoriness under load temperature and thermal shock resistance. 1. Glass furnace fireclay bricks Aug 31 2016 · This study investigated the prevention of stack corrosion under wet flue gas desulfurization conditions in a coal-fired power plant. The performance analysis and comparative studies of six materials for the prevention of stack corrosion were investigated. The ion chromatography analysis showed the acid condensation contained fluoride chloride nitrate sulphate and sulphite.

Corrosion of High Temperature Alloys by Molten Glass

Effects of Fuel Composition and Combustion Parameters on Furnace Wall Fireside Corrosion in Pulverised Coal-Fired Boilers p.857. Corrosion of High Temperature Alloys by Molten Glass p.865. Corrosion Resistance of Alloys in IGCC Environment p.873. Exploitation of Data of Alloy Corrosion in High Temperature Gases

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USAApparatus for measuring the resistivity of

USA US445184A USA USA US A US A US A US 445184 A US445184 A US 445184A US A US A US A US A US A US A Authority US United States Prior art keywords resistivity molten glass pair glass electrode Prior art date Legal status (The legal status is an assumption and is not a Nov 17 2005 · Novel Approaches to the Improvement of High Temperature Corrosion Resistance. M. Schütze W. J. Quadakkers The influence of alloying elements on the corrosion behaviour of ferritic steels in simulated combustion atmospheres. Abstract PDF References Request permissions no Molten glass corrosion resistance of new. Mo‐Ru‐Si

Robert F. Speyer s research works Georgia Tech Research

The corrosion resistance of molybdenum molybdenum disilicide and a SiC(p)/Al2O3 composite to molten E-glass at 1550degC was studied. Mo showed no tendency to oxidize as it was immersed Jul 01 2008 · Hot corrosion behaviour of BaO–MgO–SiO 2 based glass coating on nickel base superalloy was studied using 80 wt. Na 2 SO 4 20 wt. NaCl salt mixture which melts at about 700 °C. In one set of experiments the glass coated superalloy substrates were immersed in the molten salt wherein in the other samples were suspended in the salt vapour at 1000 °C.

Hot corrosion of glass coating on nickel base superalloy

Jul 01 2008 · Hot corrosion behaviour of BaO–MgO–SiO 2 based glass coating on nickel base superalloy was studied using 80 wt. Na 2 SO 4 20 wt. NaCl salt mixture which melts at about 700 °C. In one set of experiments the glass coated superalloy substrates were immersed in the molten salt wherein in the other samples were suspended in the salt vapour at 1000 °C. Aug 01 2016 · Castable cements on metals form a protective barrier that is able to prevent permeation of molten salts towards metallic surfaces. Silica-based castable cements are capable of protecting containment metallic alloys from the corrosive attack of molten chlorides at temperatures as high as 650 °C.Boron nitride (BN) blocking the pores in the cured cement prevents permeation of the molten

Molybdenum silicide based materials and their properties

Molybdenum disilicide (MoSi2) is a promising candidate material for high temperature structural applications. It is a high melting point (2030 °C) material with excellent oxidation resistance and a moderate density (6.24 g/cm3). However low toughness at low temperatures and high creep rates at elevated temperatures have hindered its commercialization in structural applications. The chemical corrosion on tank glass furnace refractories includes molten glass and refractory material reaction caused corrosion glass batching material dusts and refractory material reaction caused corrosion glass batching material volatiles and refractory materials reaction caused corrosion fuel ash composition and combustion products

CiteSeerX — Refractory Degradation in Glass tank Melters

Refractories for glass furnaces normally are limited to compositions based on A12O3 ZrO2 and SiO2 with or without Cr2O3. Alumina-zirconia-silicate (AZS) refractories in contact with molten glass form a viscous silicate layer adjacent to the refractory thus restricting contact and therefore increasing corrosion resistance. Submerged combustion burners having a burner body a burner tip connected thereto. Submerged combustion melters including the burners and methods of using them to produce molten glass. The burner body has an external conduit and first and second internal conduits substantially concentric therewith forming first and second annuli for passing a cooling fluid therethrough.

Glass Tank Furnace Refractories Construction Wikipedia

Aug 10 2020 · Fused cast α-corundum bricks won t contaminate glass liquid under 1350℃ they also have excellent molten glass corrosion resistance and excellent high temperature abrasion resistance. So fused α-corundum bricks are ideal refractory product for glass melting furnace clarification part cooling part working tank etc. S. Kamakshi Sundaram Jen‐Yan Hsu Robert F. Speyer Molten Glass Corrosion Resistance of Immersed Combustion‐Heating Tube Materials in Soda‐Lime‐Silicate Glass Journal of the American Ceramic Society 10.1111/j..1994.tb09765.x 77 6 () (2005).

Thermal Sprayed Coatings Used Against Corrosion and

Corrosion and wear problems are still of great relevance in a wide range of combustion or electrical energy for plasma- and arc-based processes) into a stream of hot gases. The coating material is heated eventually melted and accelerated by this high- molten salt and molten glass atings used against high -temperature oxidation. (spalling resistance) abrasion and slag corrosion. Due to their exceptionally high resistance to spalling and corrosive actions of molten glass chemical attacks of soda borax and other frits they are most suitable for Glass Melting Furnace (GMT) Oil fired

REFEL Laboratory REFEL

Corrosion resistance The resistance to thermal and chemical stresses is tested with the dynamic finger test and the static plate corrosion test according to the International Commission on Glass Technical Committee 11 (the so-called TC11). In the dynamic finger test a cylindrical sample is rotated in a platinum crucible together with molten Jun 25 2019 · The corrosion resistance of high-purity alumina ceramics immersed in acid solutions (H 2 SO 4 HCl HNO 3) and alkaline solutions (NaOH KOH Na 2 O Ca(OH) 2) is determined by the degree of solubility of impurities contained within the grain limits (MgO CaO SiO FeO and Na 2 O). Due to the corrosion mechanism produced is a type of

Materials and Corrosion Vol 56 No 11

Nov 17 2005 · Novel Approaches to the Improvement of High Temperature Corrosion Resistance. M. Schütze W. J. Quadakkers The influence of alloying elements on the corrosion behaviour of ferritic steels in simulated combustion atmospheres. Abstract PDF References Request permissions no Molten glass corrosion resistance of new. Mo‐Ru‐Si Refractories for glass furnaces normally are limited to compositions based on A12O3 ZrO2 and SiO2 with or without Cr2O3. Alumina-zirconia-silicate (AZS) refractories in contact with molten glass form a viscous silicate layer adjacent to the refractory thus restricting contact and therefore increasing corrosion resistance.

Glass Engineering

1691X has minimal contamination and higher corrosion resistance to molten glass. The new product ZB-1691X is suitable for side walls and paving blocks of glass melting furnace. ZB-1711 The high-zirconia AZS fused cast refractory class containing 41 ZrO2. It is highly corrosion resistant against molten glass and by strengthening matrix glass The corrosion resistance of molybdenum molybdenum disilicide and a SiC(p)/Al2O3 composite to molten E-glass at 1550degC was studied. Mo showed no tendency to oxidize as it was immersed

Refractory Degradation in Glass tank Melters. A Survey of

corrosion resistance to wool fiber glass as compared to pure AZS. Corrosion resistance data was obtained using the ASTM C-621 finger test with a 1 cm 2 x 5 cm long specimen at 1450 C and a test duration of 4 d. The glass composition contained typically 19 Na 2 O and 7 B 2 O 3. These refractories are intended for sidewalls pavers The kinetics of corrosion of plasma sprayed and extruded MoSb materials were investigated in molten alkali borosilicate glass under static and dynamic conditions at "C for 0.5-1510 hours. The corrosion behavior was compared to zirconia alumina yttria mullite yttria-alumina