Abstract: A fast-curing mineral binder mixture includes a titanium(IV)-based accelerator, a cement which includes at least one component which is selected from the compounds 3CaO*Al2O3, 12CaO*7Al2O3, CaO*Al2O3, CaO*2Al2O3, CaO*6Al2O3 and 4CaO*3Al2O3*SO3, and 15 to 80 wt % of a sulfate carrier, wherein the wt % is based on a weight of the fast-curing mineral binder mixture. The fast-curing mineral binder mixture can optionally include at least one alkaline component and/or at least one additive.

Abstract: A fast-curing mineral binder mixture includes a zirconium(IV)-based accelerator, a cement which includes at least one component selected from the compounds 3CaO*Al2O3, 12CaO*7Al2O3, CaO*Al2O3, CaO*2Al2O3, CaO*6Al2O3 and 4CaO*3Al2O3*SO3, and 15 to 80 wt % of a sulfate carrier, wherein the wt % is based on a weight of the fast-curing mineral binder mixture. The fast-curing mineral binder mixture can optionally include at least one alkaline component and/or at least one additive.

Abstract: A photocatalytically active particulate material includes a particle core of ZnS, particles of a nanoscale metal selected from Au, Ag, Pt, Pd, Cu or an alloy thereof loaded on the particle core, and a layer of Al2O3, SiO2, TiO2 or mixtures thereof on the loaded particle core.

Abstract: A process for producing a particulate TiO2 includes supplementing metatitanic acid with an alkali compound in a quantity of 1200 ppm to 2400 ppm of alkali, with a phosphorus compound in a quantity of 0.1 wt.-% to 0.3 wt.-% by weight of P, expressed as phosphorus, and with an aluminum compound in a quantity of 1 ppm to 1000 ppm of Al, expressed as Al, to obtain a mixture. The quantity of the alkali compound, of the phosphorus compound, and of the aluminum compound are with respect to the TiO2 content. The mixture is calcined at a constant temperature of 940° C. to 1020° C. until a numerical fraction X50 of TiO2 has a primary crystallite size of at least 200 nm, to obtain a calcined mixture. The calcined mixture is cooled to obtain a cooled calcined mixture. The cooled calcined mixture is grinded to obtain the particulate TiO2.

Abstract: A particulate TiO2 includes a TiO2 content of at least 99 wt.-%, an anatase content of at least 98 wt.-%, a primary crystallite size X50 of at least 200 nm, a numerical fraction of TiO2 with a primary crystallite size of at most 100 nm of at most 10%, a specific surface area of at most 8 m2/g as determined by BET measurements, 1200 ppm to 2400 ppm of alkali with respect to the TiO2 content, an Al content of 1 ppm to 1000 ppm, expressed as Al and with respect to the TiO2 content, a weight ratio of Al2O3 to Nb2O5 of from 0.17 to 0.74, and 0.1 wt.-% to 0.3 wt.-% of P, expressed as phosphorus and with respect to the TiO2 content.

Abstract: A process for producing a particulate TiO2 includes supplementing metatitanic acid with an alkali compound in a quantity of 1200 ppm to 2400 ppm of alkali, with a phosphorus compound in a quantity of 0.1 wt.-% to 0.3 wt.-% by weight of P, expressed as phosphorus, and with an aluminum compound in a quantity of 1 ppm to 1000 ppm of Al, expressed as Al, to obtain a mixture. The quantity of the alkali compound, of the phosphorus compound, and of the aluminum compound are with respect to the TiO2 content. The mixture is calcined at a constant temperature of 940° C. to 1020° C. until a numerical fraction X50 of TiO2 has a primary crystallite size of at least 200 nm, to obtain a calcined mixture. The calcined mixture is cooled to obtain a cooled calcined mixture. The cooled calcined mixture is grinded to obtain the particulate TiO2.

Abstract: A fast-curing mineral binder mixture includes a zirconium(IV)-based accelerator, a cement which includes at least one component selected from the compounds 3CaO*Al2O3, 12CaO*7Al2O3, CaO*Al2O3, CaO*2Al2O3, CaO*6Al2O3 and 4CaO*3Al2O3*SO3, and 15 to 80 wt % of a sulfate carrier, wherein the wt % is based on a weight of the fast-curing mineral binder mixture. The fast-curing mineral binder mixture can optionally include at least one alkaline component and/or at least one additive.

Abstract: A fast-curing mineral binder mixture includes a titanium(IV)-based accelerator, a cement which includes at least one component which is selected from the compounds 3CaO*Al2O3, 12CaO*7Al2O3, CaO*Al2O3, CaO*2Al2O3, CaO*6Al2O3 and 4CaO*3Al2O3*SO3, and 15 to 80 wt % of a sulfate carrier, wherein the wt % is based on a weight of the fast-curing mineral binder mixture. The fast-curing mineral binder mixture can optionally include at least one alkaline component and/or at least one additive.

Abstract: An anatase titanium dioxide includes at least one compound selected from oxides of Si, Al, and Zr in an amount of 2-50% b.w., calculated as oxides, of a total weight of the oxides, and a sulfur content of less than 150 ppm based on the total weight of the oxides.

Abstract: A method for preparing a sol comprising TiO2 and ZrO2 and/or hydrated forms of TiO2 and ZrO2. The method includes mixing a material which includes metatitanic acid in an aqueous phase with a zirconyl compound or with a mixture of several zirconyl compounds. The material is provided either as a suspension or as a filter cake from the sulfate method. The material includes a H2SO4 content of 3 to 15 wt.-% relative to a quantity of TiO2 in the material. The zirconyl compound or the mixture of several zirconyl compounds is mixed in a quantity that is sufficient to provide the sol depending on the H2SO4 content.

Abstract: A cosmetic composition includes from 0.1 wt % to 20 wt % of an organic cosmetic active ingredient which has ligand characteristics, from 0.1 wt % to 30 wt % of a titanium dioxide particulate material, and a cosmetically acceptable carrier. The titanium dioxide of the titanium dioxide particular matter is in the rutile form and has a geometric weight mean crystal size of from 0.35 ?m to 5 ?m. The particles of the titanium dioxide have a silica coating.

Abstract: An anatase titanium dioxide includes at least one compound selected from oxides of Si, Al, and Zr in an amount of 2-50% b.w., calculated as oxides, of a total weight of the oxides, and a sulfur content of less than 150 ppm based on the total weight of the oxides.

Abstract: A method for preparing a sol comprising TiO2 and ZrO2 and/or hydrated forms of TiO2 and ZrO2. The method includes mixing a material which includes metatitanic acid in an aqueous phase with a zirconyl compound or with a mixture of several zirconyl compounds. The material is provided either as a suspension or as a filter cake from the sulfate method. The material includes a H2SO4 content of 3 to 15 wt.-% relative to a quantity of TiO2 in the material. The zirconyl compound or the mixture of several zirconyl compounds is mixed in a quantity that is sufficient to provide the sol depending on the H2SO4 content.

Abstract: The invention relates to a method for preparing durable titanium dioxide particles. The preparation process includes an aqueous grinding step, which comprising providing an aqueous slurry or dispersion comprising titanium dioxide particles, aluminum containing compound and phosphorous containing compound into grinding equipment. The slurry or dispersion is subjected to an aqueous grinding process, and subsequently titanium dioxide particles having a core of titanium dioxide and a pre-coating layer thereon is obtained, said pre-coating layer containing aluminum and phosphorous containing compounds. The invention further covers the resulting titanium dioxide particles and uses thereof.

Abstract: A method for manufacturing pigmentary titanium dioxide particles coated with a SiO2 coating layer includes steps of (i) forming an aqueous dispersion containing rutile titanium dioxide particles having an average particle size of in a range of 7-1000 nm, (ii) introducing to said dispersion of step (i) a silicon containing compound and a base, (iii) adding to the dispersion obtained from step ii acid, (iv) repeating the steps ii and iii at least once. Finally, the pH of the dispersion is lowered to a value within the range from 1.9 to 9.0 before filtering and washing thus obtained product.

Abstract: A particulate TiO2 includes a TiO2 content of at least 99 wt.-%, an anatase content of at least 98 wt.-%, a primary crystallite size X50 of at least 200 nm, a numerical fraction of TiO2 with a primary crystallite size of at most 100 nm of at most 10%, a specific surface area of at most 8 m2/g as determined by BET measurements, 1200 ppm to 2400 ppm of alkali with respect to the TiO2 content, an Al content of 1 ppm to 1000 ppm, expressed as Al and with respect to the TiO2 content, a weight ratio of Al2O3 to Nb2O5 of from 0.17 to 0.74, and 0.1 wt.-% to 0.3 wt.-% of P, expressed as phosphorus and with respect to the TiO2 content.