RussianPatents.com

Raw mix for manufacture of wall ceramics. RU patent 2254308.

FIELD: ceramics.

SUBSTANCE: raw mix contains 50.69-51.4% of flue ash from brown coal combustion, 41.17-42.06% of microsilica from crystalline silicon production, and 6.54-7.84% of electrofilter dust from aluminum production.

EFFECT: increased frost resistance and reduced average density and firing temperature.

2 tbl

 


 

IPC classes for russian patent Raw mix for manufacture of wall ceramics. RU patent 2254308. (RU 2254308):

C04B35/16 - based on silicates other than clay
C04B35/14 - based on silica
Another patents in same IPC classes:
Composition and method for producing of dinas refractory / 2243953
Invention relates to batch composition and method for production of dinas refractory. Claimed batch contains (mass %) highly refined flaked slates ≤0.4; iron-lime mixture of grade ≤0.09 mm and graded crystal quartzite of grade ‹0.5 mm 44-57 in total, including grade ‹0.09 mm 24-36; grade of 0.5-2.0 mm 12-55; and grade of 2-3.2 mm ≤28. Method includes feeding of batch components, mixing, press forming of articles, drying at 50-2200C, annealing at 1200-14500C for 90-112 h, and holding at 1375-14500C for 2-88 h. Then dinas bodies are cooled for 46-132 h.
Composition and method for producing of dinas refractory / 2243953
Invention relates to batch composition and method for production of dinas refractory. Claimed batch contains (mass %) highly refined flaked slates ≤0.4; iron-lime mixture of grade ≤0.09 mm and graded crystal quartzite of grade ‹0.5 mm 44-57 in total, including grade ‹0.09 mm 24-36; grade of 0.5-2.0 mm 12-55; and grade of 2-3.2 mm ≤28. Method includes feeding of batch components, mixing, press forming of articles, drying at 50-2200C, annealing at 1200-14500C for 90-112 h, and holding at 1375-14500C for 2-88 h. Then dinas bodies are cooled for 46-132 h.
Raw mix for manufacture of wall ceramics / 2254308
Raw mix contains 50.69-51.4% of flue ash from brown coal combustion, 41.17-42.06% of microsilica from crystalline silicon production, and 6.54-7.84% of electrofilter dust from aluminum production.
Raw mix and a method for manufacturing wall ceramics / 2254309
Raw mix contains 52. 7-56.3% of microsilica, 42.5-46.5% of flue ash, and 0.8-1.2% of electrofilter dust from original aluminum production. Wall ceramic products comprises preparation of blend, molding, drying, and firing at 800°C, and additional steaming of fired products.
Raw mixture and method for making wall ceramic article / 2255919
Invention is designated for manufacturing wall ceramic articles. The raw mixture comprises the following components in the ratio, wt.-%: microsilica in manufacturing crystalline silicon, 33.9-54.5; ash fly after combustion of brown coals, 44.5-63.5, and electrofilter dust in basic manufacturing aluminum, 1.0-2.6. Electrofilter dust represents brown color waste and comprises calcium, magnesium and aluminum fluorides, cryolite and organic substances. Method involves preparing the charge, molding, drying, roasting at 800°C and moistening ready articles by keeping in water for 24 h. Invention provides enhancing resistance to cold, reducing average density and roasting temperature of material.
Composite material / 2257362
The invention is pertaining to the field of aircraft engineering, space engineering, electrical technology, motor car and instrumentation technologies, in particular, to composites produced on the base of glass dies reinforced by continuous carbon filling materials. The technical result of the invention ensures an increased heat-resistance of a composite material at operational temperatures above 800°C. The composite material includes (in mass %): a glass die - 60.5-73.5 and a high-modular carbon fibrous material - 26.5-39.5. The glass die contains ingredients in the following ratio (in mass %): SiO2 - 58.9-87.4, B2O3 - 2.7-15, SiOC - 4.5-11.5, TiSi2 - 4.5-11.5,SiB4 -0.9-3.7.
Method of production of the protective and hardening layer in the shell of the antenna blister made out of quartz ceramics / 2263090
The invention is pertaining to the aircraft and rocket equipment, in particular, to production of the antenna blisters for rockets and may find application in mechanical engineering and other branches of industry at production of items possessive a high strength in combination with radiotransparency in the whole range of temperatures of operation. The technical result of the invention is formation of a protective and hardening layer on the inner surface of the antenna blister, which possesses a sealing function, humidity resistance and a hardening effect. The method of production of the defensive and hardening layer in a shell of the antenna blister made out of quartz ceramics includes impregnation of then inner surface of the ceramic shell with an acetonic solution of a mixture of organosilicon and phenol-formaldehyde resins in the ratio of 1:2 accordingly, density of 0.940-0.980 g/cm3. The produced layer is dried at an indoor temperature within 3-6 hours, then polymerized at the temperature of 220-240°C within 4-6 hours. The impregnation conduct by a method of the communicating vessels in the closed volume or by the method of pouring over with water in the closed volume.
Method of manufacture of large-size crucibles out of quartz ceramics Method of manufacture of large-size crucibles out of quartz ceramics / 2264365
The invention is pertaining to the field of refractory industry, in particular, to production of large-size crucibles out of quartz ceramics. The invention offers the method of manufacture of the based on a quartz glass large-size square crucibles used in production of the "solar" silicon. On the basis of the quartz glass (SiO2 > 99.5 %) using its wet milling produce the highly-concentrated suspensions with density of 1.88-1.92 g/cm3, expose them to stabilizations, introduce a grainy filler (50-400 microns) in amount ensuring its contents in the molding system within the limits of 25-35 %. Molding of the crucibles castings is exercised in the porous molds. At that filling-up of the molds is conducted at their positions "the bottom up" and the molds disassembling and removal of the castings - at the position of the mold "bottom down". Hardening is achieved by sintering at the temperature of 1100-1200°C or by a hydrothermal treatment at the temperatures of 150-200°C with a soaking time of 4-12 hours. The technical result of the invention is obtaining a high density with uniform properties state of a material at the stage of molding with porosity below 13 %.
Method for treatment of articles made of quartz ceramic / 2267470
Claimed method includes job conditioning in ammonia 2-10 % aqueous solution or saturated calcium oxide water-ammonia solution with ammonia concentration of 2-10 % for 0.1-0.5 h followed by autoclave treatment under pressure of 5-25 atm for 2-20 h.
Raw materials mixture for production of wall ceramic products / 2268866
The invention is pertaining to the field of construction industry, in particular, to production raw materials mixture for production of wall ceramic products. The technical result of the invention is an increased frost resistance of the products at reduction of a shrinkage and temperatures of the material roasting. The raw materials mixture contains (in mass %): microsilica of production of crystalline silicon - 30.43-31.82, a fly ash from incineration of brown coals - 56.52-59.09 and a prorash from bucking of the spent carbon lining of electrolytic baths - 9.09-13.04.
Method of production of ceramic articles / 2269502
Proposed method includes grinding the starting material by wet method for obtaining slip, stabilization of this slip, molding blanks from aqueous suspensions by slip casting method, thus forming porous gypsum molds; then heat treatment is performed; before heat treatment, surface of molded blank is treated with Cr2O3 at its concentration in water from 40 to 60 weight-%. Treatment of surface of molded blank with aqueous suspension of chromium oxide at concentration of from 40 to 60 weight-% increases blackness coefficient of blank, thus causing considerable activation of sintering process; number of technological operations and operating time are reduced considerably. Provision is made for use of rejects at molding stage.
Raw mix for manufacture of wall ceramics / 2254308
Raw mix contains 50.69-51.4% of flue ash from brown coal combustion, 41.17-42.06% of microsilica from crystalline silicon production, and 6.54-7.84% of electrofilter dust from aluminum production.
Raw mix and a method for manufacturing wall ceramics / 2254309
Raw mix contains 52. 7-56.3% of microsilica, 42.5-46.5% of flue ash, and 0.8-1.2% of electrofilter dust from original aluminum production. Wall ceramic products comprises preparation of blend, molding, drying, and firing at 800°C, and additional steaming of fired products.
Raw mixture and method for making wall ceramic article / 2255919
Invention is designated for manufacturing wall ceramic articles. The raw mixture comprises the following components in the ratio, wt.-%: microsilica in manufacturing crystalline silicon, 33.9-54.5; ash fly after combustion of brown coals, 44.5-63.5, and electrofilter dust in basic manufacturing aluminum, 1.0-2.6. Electrofilter dust represents brown color waste and comprises calcium, magnesium and aluminum fluorides, cryolite and organic substances. Method involves preparing the charge, molding, drying, roasting at 800°C and moistening ready articles by keeping in water for 24 h. Invention provides enhancing resistance to cold, reducing average density and roasting temperature of material.
Raw mixture and method of producing cellular ceramic materials Raw mixture and method of producing cellular ceramic materials / 2263087
Raw mixture comprises, in mass%, 8.81-9.37 of micro-silicon dioxide, 50.0-53.3 of ash-priming, 3.12-8.6 of carbon lining, 0.06-0.072 of aluminum powder, 0.02-0.31 of sodium carboxymethyl cellulose, and 33.8-35.07 of water. The method comprises preparing the mixture, molding, swelling by vibration, drying at a temperature of 100°C, and roasting at a temperature 800°C.
Raw material mixture and method of manufacture of ceramic materials of high-porous structure Raw material mixture and method of manufacture of ceramic materials of high-porous structure / 2263088
Proposed mixture includes the following components, mass-%: microsilica, 8.06-8.31; fly ash, 56.30-58.20; aluminum powder, 0.40-0.42; detergent, 0.40-0.42; carboxymethyl cellulose, 0.81-0.98; calcium chloride, 0.17-0.19; water, 32.20-33.54. Method of manufacture of ceramic materials of high-porous structure includes preparation of mixture, molding, vibration bulging, drying at temperature of 100°C and roasting at temperature 900°C.
Refractory foamed carbon-containing material / 2263648
Invention relates to manufacturing light porous carbon-containing refractory materials. Invention proposes material showing inorganic cellular structure prepared by foaming and hardening the slip composition prepared from ground charge with a gas-forming agent - finely divided crystalline silicon mixed with water glass in the following mass ratios of components in the slip composition: water glass : silicon = (3-6):1 and charge : water glass = (1.0-1.5):1. Charge comprises components in the following ratio, mas. p. p.: mineral filling agent, 45-53; calcined shungite, 15-22; aluminum powder, 10-15. Quartz sand, quartzite, perlite, vermiculite, dinas, cement fly ash and slags are used as a mineral filling agent, Foamed material comprises 12-20 wt.-% of silicon carbide and 25-51 wt.-% of kyanite prepared by exothermic reaction at 1400-1700°C carrying out in volume of hardened porous material. Material shows porosity 60-81% and heat conductivity 0.08-0.18 Wt/m x K at 20°C and shows high mechanical indices and stability in oxidizing medium. Material can be prepared without large energy and labor consumptions.
Raw mixture for production of wall ceramic articles / 2267471
Claimed mixture contains as starting components (mass %) microsilica from crystal silicium production 51.9-52.9; fly ash from brown coal combustion 43.3-42.4; electrostatic cleaner from aluminum production 0.9-1.0, and detergent 2.9-4.7.
Raw materials mixture for production of wall ceramic products / 2268866
The invention is pertaining to the field of construction industry, in particular, to production raw materials mixture for production of wall ceramic products. The technical result of the invention is an increased frost resistance of the products at reduction of a shrinkage and temperatures of the material roasting. The raw materials mixture contains (in mass %): microsilica of production of crystalline silicon - 30.43-31.82, a fly ash from incineration of brown coals - 56.52-59.09 and a prorash from bucking of the spent carbon lining of electrolytic baths - 9.09-13.04.
Raw mixture for making wall ceramic article / 2269500
Invention proposes a raw mixture and composites for making wall ceramic articles. Proposed raw mixture for making wall ceramic articles comprises as raw components microsilica from manufacture of crystalline silicon, fly ash after combustion of brown coals, spills after crushing the depleted coal fettling of electrolyzers and detergent "Taiga" taken in the following ratio of components, wt.-%: microsilica, 30.4-31.0; fly ash, 56,3-57.5; spills after crushing the depleted coal fettling of electrolyzers, 8.8-9.0, and detergent "Taiga", 2.7-4.3. Invention provides enhancing strength and resistance to cold, decreasing shrinkage and the roasting point.
Method of manufacturing products based on silica-containing binder Method of manufacturing products based on silica-containing binder / 2283818
Invention relates to manufacture of a variety of different-destination building products such as bricks, wall blocks, footway materials, face wall and floor tiles as well as various heat-insulation and structural heat-insulation units like slabs, blocks, shells, and segments showing elevated strength and heat-insulation characteristics based on silica-containing binder using non-expensive mineral raw material and production wastes. Method involves preparing silica-containing binder with density 1.1-2.1 g/cc from mixture composed of inorganic bonding material, silica-containing component, and water under vigorous stirring in high-speed mixer at stirring speed 1500-2500 rpm, stirred particle vibration frequency2000-35000 Hz, and heating to 80-90°C followed by cooling at stirring with speed 40-100 rpm for 10-12 h to 15-25°C. Preparation of molding blend is accomplished by blending 9.0-13.5% of silica-containing binder with silica-containing aggregate, homogenizing the blend, and heat treatment of molded products at 400-950°C. When combustible aggregates are used heat treatment is carried out at 90°C.
© 2013-2014 Russian business network RussianPatents.com - Special Russian commercial information project for world wide. Foreign filing in English.