Abstract: A composition for use in forming a heat insulating hot top liner which comprises, by weight, 0 to 20% of a pulverized organic fibrous material, 0 to 40% of a pulverized inorganic fibrous material, 50 to 90% of a refractory material and sufficient liquid carrier to prevent dusting, with the total per cent of the fibrous materials ranging from 5 to 50%. A method for making the insulating composition and a method for making a liner for a hot top which includes transporting the composition to a remote location for forming are also disclosed.

Abstract: A cellular product useful for such purposes as fire resistance, thermal insulation, and acoustical sound proofing may be produced from a mineral cement, such as gypsum cement, portland cement, calcium aluminate cement, or magneisa cement, an organic film former such as guar gun, or an inorganic film former such as bentonite, a mixture of nonionic and anionic surfactants, a lightweight aggregate, such as perlite, vermiculite, or hollow silicate spheres, and air in amount substantially in excess of that used in air entrainment of cement, whereby the product has a density which is only a small fraction of the density of the mineral cement and aggregate composition per se.

Abstract: An olefine polymerization catalyst comprises (1) a solid transition metal compound, (2) an organo-compound of a non-transition metal compound, (3) a tetra-alkyl diamine and (4) a phosphine oxide derivative, wherein one of the compounds (3) and (4) has been milled with the transition metal compound. The catalyst system may optionally include a polyene. The catalyst combines good polymerization activity with a low yield of soluble polymer.

Abstract: Foamed sodium silicate ceramic obtained by mixing sodium silicate 30-36% by weight of aluminum hydroxide or 30-36% by weight of aluminum hydroxide and 5-20% by weight of ceramic fibers; and method of manufacturing the same.

Abstract: This invention relates to a method of manufacturing cement clinker from raw material in the form of cement raw slurry wherein the raw material is subjected to an initial heat treatment by bringing it into contact with hot gases by subjecting it to an initial spray drying in a spray dryer to convert the raw slurry into cement raw meal and preheated in a suspension preheater prior to burning it in a rotary kiln. Hot gases are directed from the rotary kiln to the preheater for preheating the spray dried raw meal while hot gases are directed to the spray dryer to provide heat for spray drying the raw slurry. A means for producing supplementary hot gases is provided with means for directing said supplementary hot gases in a manner to provide supplementary heat for heat treating the raw material prior to feeding it into the kiln. A rotary kiln plant for manufacturing cement clinker from raw material in the form of cement raw slurry according to the method of the invention is also disclosed.

Abstract: An improved pozzolan is fabricated from scoria cinder processed to a particle size below 10,000 Blaine. When incorporated with the cement in a concrete mixture, this pozzolan imparts rapid tensile strength to the concrete upon curing. A new and improved concrete is also provided which consists solely of cement and scoria cinder aggregate of graded particle size.

Abstract: This invention relates to a refractory mass of the art known per se for casting, ramming or stamping refractory linings and for metallurgical ladles or tapping channels, based on refractory grog and binder, to which mass there has been added straw-shaped, channel-forming elements, equally distributed throughout the mass, in sufficient amount to make possible rapid-drying.

Abstract: A method of heat treating a preheated, pulverous raw material consisting of or containing lime, such as cement raw meal. Preheated pulverous raw material is accumulated in a lower portion of a calcination chamber and a substantially incombustible gas is introduced into the accumulation at a sufficient velocity to traverse the accumulation to cause surface portions to overflow a weir. An oxygen-containing gas is introduced into a flame chamber overlying the accumulation. At least one flame is maintained within the flame chamber by burning a fuel therein. The heat necessary for at least partially calcining particles of raw materials suspended in the incombustible gas and oxygen-containing gas is transmitted from the flame to the suspension of raw materials. The treated materials may then be subjected to a finishing calcination and/or any other final heat treatment.

Abstract: A method of forming a peat based product comprises the steps of mixing raw peat with a binder, e.g. Portland Cement, and an amount of internal draining agent for the peat, e.g. hydrated lime, and pressing the resulting mix in a mould to remove at least half the chemically free water content from the mix. The amount of internal draining agent for the peat is preferably not less by weight than about half the amount of binder, and the water content of the raw peat is usually at least 90% by weight and this may be reduced to less than 35% by weight of the mix during pressing. In a variation, a mixture of ground silica sand and hydrated lime initially provides the draining agent, and the pressed article is cured in an autoclave, the silica and hydrated lime combining during autoclaving to provide the binder.

Abstract: The present invention relates to novel lightweight cellular cement compositions, methods of preparing such compositions and methods of casting the compositions into lightweight high strength structural members.

Abstract: A gel is prepared through the intermediary of an acid hydrolysate. The hydrolysate is produced by the hydrolysis of an organic silicate with the metal salt whose oxide it is desired to gell.

Abstract: A process for the manufacture of a modified titanium-containing component of a Ziegler-Natta catalyst for the polymerization of C.sub.3-6 .alpha.-monoolefins, wherein a specific titanium-containing compound and a specific phosphorus-containing compound are dry-milled at a specific grinding acceleration in a vibratory ball mill. The characteristic feature of the process of the invention is that a mill is used which has a specific useful volume and the mill is initially charged with a specific amount of the titanium-containing compound, which is milled at a low temperature while the phosphorus-containing compound is gradually added, whereupon milling is continued while the temperature of the process material is gradually raised to a specific value and maintained at said value for a specific period of time, whereupon, if desired, milling is again continued at a lower temperature for a specific period of time.

Abstract: Inorganic coating compositions with alkali silicate comprising a viscous aqueous suspension which is obtained by heating above 50.degree. C. the mixture comprising an aqueous 10-50 weight percent solution of alkali silicate and 5-300 weight percent (vs. the solid component in said 10-50 weight percent aqueous solution) of amorphous silica powder hardenable upon application of a hardener solution comprising a surface tension reducing agent and an aqueous solution of at least one compound selected from phosphoric acid, phosphates, chlorides, sulfates, nitrates, fluorosilicates and ammonium persulfate.

Abstract: A rigid gel is prepared by treating a solution of an aluminium hydroxyhalide solution of a specified formula and composition with an acetate or lactate accelerator. The invention has particular application to the preparation of refractories.

Abstract: A method is described for the side chain chlorination of alkyl aromatic compounds by chlorination in the presence of a novel catalytic composition comprising phosphorus trichloride and bis (dimethyl thio carbamoyl) di-sulfide. Reaction is with ultra violet light at elevated temperatures.

Abstract: A composition of a silica-containing material and an additive of organic and inorganic materials which decomposes to generate gases at low temperatures is disclosed along with a method of making a lightweight aggregate from the composition.

Abstract: A method for working quick hardening cements comprising preparing (A) a composition comprising a cement paste, mortar or concrete and (B) a composition comprising a powder or suspension composition of calcium aluminate and inorganic sulfate, mixing the composition (A) and the composition (B) and quickly executing the mixture immediately after the admixture.

Abstract: A catalyst for hydrogenation, isomeration and hydrosilylation of alkenes employes, as a polymeric supporting material, polyphenylene with a catalytically active metal (e.g., rhodium, ruthenium, palladium or platinum) deposited thereon.

Abstract: Dense coherent composition of matter composed essentially of, on a weight basis, 10 to 30% aluminum-base metal phase finely interspersed throughout a mass of substantially submicron size crystals of at least 60% magnesium aluminate spinel, 0 to 10% alpha alumina, 0 to 2% mullite and 0 to 5% magnesium aluminum boride. Made by bringing molten aluminum-base metal at 650.degree.-850.degree.C. (only up to 750.degree.C when MgO content of the base composition noted below is less than 8%) into contact with a mass of melted and solidified material consisting essentially of, analytically by weight, at least 65% being a base composition and 0 to 35% B.sub.2 O.sub.3, the base composition consisting of 5 to less than 40% MgO, 5 to 43% Al.sub.2 O.sub.3 and 35 to 85% SiO.sub.2. Upon contact, metal reacts with mass to transform a substantial portion of the mass into the cermet composition of matter. May be used in form of abrasive grain and/or abrasive articles.

Abstract: A mortar comprising an inorganic binder such as anhydrite, gypsum or cement is rendered more flowable and processible by incorporating therein a sulfonic acid group-containing formaldehyde condensation product with a cycloalkanone, e.g. preferably about 0.05 to 5% by weight of the binder of the condensation product of sodium sulfite, formaldehyde and cyclohexanone. There may also be present an auxiliary such as FeSO.sub.4,7 H.sub.2 O,Al.sub.2 (SO.sub.4).sub.3.18 H.sub.2 O or KAl(SO.sub.4).sub.2, as well as an additive such as a plasticizer, hardening accelerator, retarder, air-entraining agent, thickener, activator, anti-foam agent or synthetic resin dispersion, and/or an aggregate such as sand, silica, perlite, pumice or foamed plastic beads.