摘要:
Provided is a coating solution for forming a dust collecting layer, wherein the coating solution can be applied uniformly, and the formed dust collecting layer does not easily peel off from a filter element material, and allows to collect fine powder products having a small particle size. The coating solution is for forming a dust collecting layer in a dust collecting filter, and contains a fine powder, dopamine hydrochloride, and an adhesive.
摘要:
The present invention provides a method for producing lithium carbonate, that can shorten the time required in the production of lithium carbonate and has excellent maintenance property and production efficiency without forming fixed matters that require complicated procedures to remove in a reaction apparatus.
摘要:
Provided are a photocatalyst which is high in catalytic activity, is nontoxic, has a long life, allows visible light to be used directly for its photocatalytic reaction and is especially useful for hydrogen generation, and a process for producing it. It contains a cadmium compound, has a capsular structure, has an average particle diameter of 100 nm or less and can be manufactured by dropping a solution of a cadmium salt into a solution of a sodium compound or admixing a solution of a sodium compound in a suspension of particles of a cadmium compound.
摘要:
The invention provides white powder high in the lightness and a method for producing the same. The white powder has a titanium oxide film and a metallic silver film in this order on a surface of a base particle. The white powder is preferably 75 or more in the lightness L* and the base particle is preferably 70 or less in the lightness L*. Furthermore, the base particle is preferably a magnetic material and a film thickness of the titanium oxide film is preferably in the range of 5 to 500 nm.
摘要:
Silica-calcium carbonate composition particles having the characteristics of both synthetic silica and calcium carbonate are described along with paper having the particles internally filled therein and a method for making the particles.In the carbonation reaction, which typically involves a step of forming calcium carbonate, while agitating a calcium hydroxide slurry, a mixed gas of carbon dioxide and air is introduced thereinto and synthetic silica, such as colloidal silica or the like, is added before the carbonation rate arrives at 95% but after commencement of the carbonation reaction, followed by further introduction of the mixed gas to continue the carbonation reaction and completion of the carbonation reaction at the time when the pH of the slurry reaches 7, thereby providing the composite particles.
摘要:
optically coherent multilayered film-coated powder having weather resistance and a clear intended color, and processes for designing and producing the same are provided. A substance of the base particles providing an intended function and an intended color are selected; a spectral intensity curve and values in CIELAB color system of the intended color are measured; and with substances capable of being used as the coated layers and refractive indexes thereof being included in factors, substances and thicknesses of the coated layers and an order of formation of the layers are obtained that provide optically coherent multilayered film-coated powder having such values in CIELAB color system that minimizes a color difference and makes a hue ratio proximate to 1, by solving numerical solutions of the recurring formula for film multiple coherence.
摘要:
A consolidated material of coated powders obtained by a method which comprises forming a molding by mutually bonding powder particles having a given property and in which the powder particles can be made to have a desired arrangement or can be arranged in positions giving such a predetermined distance that desired properties are obtainable. The present invention shows a process for producing a consolidated material of coated powders which are mutually consolidated, comprising adhering either powders each comprising a base particle having thereon a coating film having a uniform thickness of 0.01 to 20 μm or powders each comprising base particles each having thereon plural coating films having a uniform thickness of 0.01 to 5 μm per film in which at least any adjacent coating films are different in kind, at the coating film or by an adhesive.
摘要:
A medium dispensing apparatus, a stirring and heat-retaining apparatus, and a dispensing method are provided which enable a medium to be surely supplied at an adequate temperature while variation of the dispensation amount of the medium, liquid dripping which produces air bubbles, and pulsated ejection are prevented from occurring, and local gelation of the medium and contamination due to various kinds of bacteria are prevented from occurring. In a midway of a medium sending tube 11 serving as a medium passage which guides a medium 2 from a medium container 3 to a nozzle 7, a medium returning passage 14 through which the medium is returned to the medium container 3 is branched. When the medium is not to be dispensed, the medium is circulated while the temperature of the medium is retained, and the temperature of the whole of the medium passage from the branching position of the medium sending tube 11 with respect to the medium returning tube 14 to the nozzle 7 is retained by auxiliary heating means 16. When the medium is to be dispensed, an adequate amount of the medium is supplied by means of throttle portions 50 and 51 which are disposed in two or more positions of the tube 11 and the diameter of which is smaller than that of another portion of the tube 11. The temperature of the medium is retained while uniformly stirring the medium by a first stirrer 5a in the medium container 3 and a second stirrer 5b in a heating bath 6.
摘要:
A safe medical powder with excellent performances which is a magnetosensitive powder for diagnosis, therapy, or drug delivery and which, even when placed in the body for a prolonged period, neither suffers a decrease in magnetic sensitivity nor releases ions, etc. The medical powder comprises a base particle of a ferromagnetic metal having thereon a coating layer, wherein at least the outside of the coating layer comprises a bioinert substance. Preferably, the coating layer comprising a bioinert substance comprises a layer comprises a hydrolysate of an alkoxide compound.
摘要:
A ceramic sheet comprising 5 to 50 wt. % (absolute dry weight) of a cation-modified pulp having a degree of substitution of cationic group of 0.02 to 0.04 and beaten to freeness of 200 to 100 ml C.S.F. and 50 to 95 wt. % of fine inorganic particles dispersed uniformly in and supported by said cation-modified pulp. This ceramic sheet can be easily prepared from an aqueous suspension of the cation-modified pulp and the fine inorganic particles by using a paper-making treatment.