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refractory aggregate comprising

Refractory Aggregate Rongsheng Refractory Aggregate

Refractory aggregate is a kind of refractory pellet which is the composition of refractory material. It is made of various refractory materials which is sintered, broken and process. The granularity is usually over 0.088mm. As the main material in the refractory, refractory aggregate take

An Introduction to Refractory Aggregates

10/05/2002 Any aggregate can potentially be used in the formulation of a monolithic refractory. They are chosen based on their stability at the temperature of application, mechanical strength,

US7368010B2 Calcium aluminate clinker as a refractory

The present invention provides for a refractory aggregate composition comprising an improved calcium aluminate clinker having the formula C n A x wherein C is calcium oxide and A is aluminum oxide,...

Monolithic refractories comprising a hydrocolloid

Refractory monolithic batch consisting essentially of at least one refractory aggregate, a cementatious material and about 0.05 to 2.0% of a hydrocolloid based on the total weight of the batch, said hydrocolloid comprising an organic polymer capable of absorbing substantially at least 50 times its weight in water to form a substantially porous thermally insulating refractory product when the

Calcium aluminate clinker as a refractory aggregate with

The present invention provides for a refractory aggregate composition comprising an improved calcium aluminate clinker having the formula C n A x wherein C is calcium oxide and A is aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said clinker has less less than about fifty weight percent C 12 A 7.

Calcium aluminate clinker as a refractory aggregate with

25/01/2012 The present invention provides a refractory aggregate composition comprising a calcium aluminate clinker having the formula C n A x wherein C is calcium oxide and A is aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said clinker has less than about fifty weight percent C 12 A 7, and preferably less than about

Aluminum resistant refractory composition and method

13/12/2007 A refractory composition for use in contact with molten aluminum and molten aluminum alloys containing a refractory aggregate, a binder, and a treatment additive comprising a source of Sr. Methods comprising contacting a refractory composition with the Sr source to improve the resistance of the refractory to molten aluminum attack are also disclosed.

Refractory article ROSS TACONY CRUCIBLE COMPANY

There are several important types of bonds for refractory articles, used to cement the refractory aggregates comprising the article together; the glass or porcelanic bond, the crystalline bond (either same or different composition as regards the aggregate) the colloidal bond (either organic or inorganic and relying on sintering or recrystallization resulting from the firing) and the coke

Patents Assigned to Westmoreland Advanced Materials, Inc

20/09/2013 Abstract: The present invention provides for a refractory aggregate composition comprising an improved calcium aluminate clinker having the formula CnAx wherein C is calcium oxide and A is aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said clinker has from zero to less than about fifty weight percent C12A7, and

Refractory Aggregate Rongsheng Refractory Aggregate

Refractory aggregate is usually used in the making of monolithic refractory which is widely used in many industries such as power industry, metallurgy industry, petroleum industry and so on. Where to Buy Refractory Aggregate. As the skeleton material in refractory castable, high temperature refractory aggregate is indispensable in the making of monolithic refractory material. To meet the

US8123853B2 Calcium aluminate clinker as a refractory

The present invention provides for a refractory aggregate composition comprising an improved calcium aluminate clinker having the formula C n A x wherein C is calcium oxide and A is aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said clinker has from zero to less than about fifty weight percent C 12 A 7 .

Calcium aluminate clinker as a refractory aggregate with

25/01/2012 The present invention provides for a refractory aggregate composition comprising an improved calcium aluminate clinker having the formula CnAx wherein C is calcium oxide and A is aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said clinker has from zero to less than about fifty weight percent C12A7, and

AU2013200387B2 Calcium aluminate clinker as a refractory

CALCIUM ALUMINATE CLINKER AS A REFRACTORY AGGREGATE WITH AND WITHOUT BARIUM ADDITION AND USE THEREOF The present invention provides for a refractory aggregate composition comprising an improved 5 calcium aluminate clinker having the formula CA, wherein C is calcium oxide and A is aluminium oxide, wherein n is an integer from about I to about 12, wherein x is an integer

CA1249608A Abrasion resistant refractory composition

Abstract of the Disclosure A refractory composition characterized by abrasion resistance and low thermal conductivity comprising about 40 to about 96 weight percent amorphous silica, about 2 to about 50 weight percent -65 mesh calcined refractory aggre-gate having a density of at least about 140 lb/ft3 and about 2 to about 40 weight percent calcium aluminate cement.

Calcium aluminate clinker as a refractory aggregate with

The present invention provides for a refractory aggregate composition comprising an improved calcium aluminate clinker having the formula C n A x wherein C is calcium oxide and A is aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said clinker has less less than about fifty weight percent C 12 A 7.

CALCIUM ALUMINATE CLINKER AS A REFRACTORY AGGREGATE

The present invention provides for a refractory aggregate composition comprising an improved calcium aluminate clinker having the formula CnAx wherein C is calcium oxide and A is aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said clinker has from zero to less than about fifty weight percent C12A7.

Patents Assigned to Westmoreland Advanced Materials, Inc

20/09/2013 Abstract: The present invention provides for a refractory aggregate composition comprising an improved calcium aluminate clinker having the formula CnAx wherein C is calcium oxide and A is aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said clinker has from zero to less than about fifty weight percent

Patents Assigned to Taiko Refractories Co., Ltd. Justia

Abstract: A premixed material is obtained by tempering a castable refractory powder composition comprising refractory aggregate, fine refractory powder, alumina cement, a dispersing agent and an alumina cement hydration stopper with water. The hydration stopper is acidic in a state of an aqueous solution. The amount of the hydration stopper is controlled such that the premixed material has a

Refractory composition comprising nitride filler and

The refractory composition of claim 1 comprising about 30 to 75 parts by weight colloidal sol binder, based on the weight of the filler. 5. The refractory composition of claim 1 wherein said filler comprises silicon oxynitride or silicon aluminum oxynitride wherein the aluminum and oxygen are in a solid solution of silicon nitride. 6. The refractory composition of claim 1 further comprising

US3432312A Refractory mold composition and method

refractory composition mold weight aggregate Prior art date 1965-09-08 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.) Expired Lifetime Application number Inventor Roy C Feagin Edward L Dahowski Peter Kosmos Ronald R Robb Current Assignee (The listed

US5252526A Insulating refractory Google Patents

A refractory mix for forming high strength, low thermal conductivity refractory shapes comprising from about 40 to 75% by weight of at least one dense refractory aggregate, about 10 to 30% by weight of a bonding agent, and about 5 to 25% by weight of hollow ceramic microspheres having a diameter of about 1 to 350 microns.

Wet-gunning method for dense castable refractory composition

The method for wet-gunning a castable refractory composition includes the steps of (a) preparing a cement-free, castable refractory composition comprising 70-98 weight % of refractory aggregate having a particle size of 10 mm or less, 2-30 weight % of ultrafine refractory powder having a particle size of 10 .mu.m or less, and 0.01-1.0 weight % (outer percentage) of a dispersing agent, and

Insulating Castable Refractories Specification Best

On the face of it all insulating castable refractories look the same, comprising a mixture of aggregates, cement and additives, such as clay and fillers. When mixed with water, they will form a slurry suitable for application via casting, gunning, ramming, pouring or plastering, and in some compositions, pumping and shot-creting. It is important to realise that all castable refractories can be

Kenneth A. McGowan Inventions, Patents and Patent

Abstract: The present invention provides for a refractory aggregate composition comprising an improved calcium aluminate clinker having the formula CnAx wherein C is calcium oxide and A is aluminum oxide, wherein n is an integer from about 1 to about 12, wherein x is an integer from about 1 to about 24, and wherein said clinker has from zero to less than about fifty weight percent C12A7.

Patents Assigned to Taiko Refractories Co., Ltd. Justia

Abstract: A premixed material is obtained by tempering a castable refractory powder composition comprising refractory aggregate, fine refractory powder, alumina cement, a dispersing agent and an alumina cement hydration stopper with water. The hydration stopper is acidic in a state of an aqueous solution. The amount of the hydration stopper is controlled such that the premixed material has a

US Patent Application for REFRACTORY BINDER SYSTEM Patent

26/01/2018 A refractory aggregate system, comprising: a refractory aggregate; an anhydrous liquid; and an oleophilic rheology modifier, wherein the anhydrous liquid is selected from the group consisting of tall oil, propylene glycol, linseed oil, soybean oil, and combinations thereof. 2. The system of claim 1, wherein the anhydrous liquid is present in the formulation in an amount in the range from and

US20100009840A1 Cement-free refractory Google Patents

The present invention describes a cement free refractory mixture. The mixture comprises a pH buffer and a component containing a metal or fumed silica. Water may impart good flow characteristics to the mixture and can produce an effective low temperature cure. At elevated temperatures, an article formed using this mixture has superior refractory and physical properties.

Cement-free refractory by Vesuvius Crucible Company AU

Similarly, refractory tubes used in aluminum-killed steels must resist a build-up of alumina that could otherwise clog the tube. Finally, the refractory article must be strong enough to resist mechanical forces, such as compressive, tensile and torsional stresses. [0004] Commonly, refractory articles are formed from a combination of refractory aggregate and a binder. The binder holds the

US Patent Application for CEMENT-FREE REFRACTORY Patent

06/07/2007 Commonly, refractory articles are formed from a combination of refractory aggregate and a binder. The binder holds the aggregate in place. Both the aggregate and binder can profoundly affect the properties of the article. Common aggregates include silica, zirconia, silicon carbide, alumina, magnesia, spinels, calcined dolomite, chrome magnesite, olivine, forsterite, mullite, kyanmite