摘要:
The present invention addresses the problem of providing a novel, sold metal alloy. Provided is a metal alloy containing two or more types of metal, wherein an equilibrium diagram of the metal alloy shows the two or more types of metal in a finely mixed state at the nanolevel in a specific region where the two types of metal are unevenly distributed. This metal alloy has a substitutional solid solution of the two or more types of metal as the principal constituent thereof. This metal alloy is preferably one obtained by precipitation after mixing ions of two or more types of metal and a reducing agent in a thin-film fluid formed between processing surfaces, at least one of which rotates relative to the other, which are arranged so as to face one another and are capable of approaching and separating from one another.
摘要:
The problem addressed by the present invention is to provide a method for producing microparticles. Provided is a method that is for producing microparticles and that is characterized by containing at least the the following two steps: (I) a step for preparing a microparticle starting material solution by dissolving at least one type of microparticle starting material in a solvent using high speed stirring or ultrasonic waves, and (II) a step for precipitating microparticles by mixing the microparticle starting material solution and at least one type of precipitation solvent for precipitating the microparticle starting material in a thin film fluid formed between at least two processing surfaces that are disposed facing each other, are able to approach/ separate from each other, and of which at least one rotates relative to the others.
摘要:
Disclosed are: a quinacridone pigment composition containing quinacridone microparticles which have durability and spectral characteristics equivalent to those required for a magenta color of a dye; and a method for producing the quinacridone microparticles. Specifically disclosed are: a quinacridone pigment composition containing at least one type of quinacridone microparticles, wherein the quinacridone microparticles are characterized in that the difference between the maximum transmittance (Tmax1) and the minimum transmittance (Tmin) (i.e., Tmax1 - Tmin) is 80% or more in a transmission spectrum at 350 nm to 800 nm and the difference between the maximum transmittance (Tmax2) and the minimum transmittance (Tmin) (i.e., Tmax2 - Tmin) is 30% or more in a transmission spectrum at 350 nm to 580 nm, or that the difference between the maximum transmittance (Tmax1) and the minimum transmittance (Tmin) (i.e., Tmax1 - Tmin) is 80% or more in a transmission spectrum at 350 nm to 800 nm and the wavelength (λmax) at which the transmittance in a transmission spectrum at 350 nm to 500 nm becomes maximum is less than 430 nm; and a method for producing the quinacridone microparticles.
摘要:
The present invention addresses the problem of providing a method for producing microparticles having a controlled crystallite diameter. At least two types of fluids to be processed; i.e., a raw material fluid containing a substance to be separated, and a separating fluid containing a substance for causing separation of the substance to be separated, are mixed in a thin film fluid formed between at least two processing surfaces which are approachably and separably disposed facing each other. At least one processing surface rotates relative to the other, and the substance to be separated giving a controlled crystallite diameter is caused to separate. At this time, specific conditions related to the fluid to be processed introduced between the processing surfaces are varied to control the crystallite diameter of the substance to be separated. The specific conditions are at least two conditions selected from the group consisting of: the type of substance to be separated included in the raw material fluid and/ or substance included in the separating fluid; the concentration of the substance to be separated included in the raw material fluid and/ or substance included in the separating fluid; the pH of the raw material fluid and / or separating material fluid; the introduction temperature of the raw material fluid and/ or separating fluid; and the introduction velocity of the raw material fluid and/ or separating fluid.
摘要:
Provided is a method for producing metal microparticles in which the ratio of crystallite diameter to the particle diameter of the metal microparticles is controlled. At least two types of fluid to be processed are used, including a metal fluid in which a metal or a metal compound is dissolved in a solvent, and a reducing agent fluid which includes a reducing agent. Sulfate ions are included in one or both of the metal fluid and the reducing agent fluid. The fluid to be processed is mixed in a thin film fluid formed between at least two processing surfaces, at least one of which rotates relative to the other, and which are disposed facing each other and capable of approaching and separating from each other, and metal microparticles are precipitated. The present invention is characterized in that at this time, the ratio (d/D) of the crystallite diameter (d) of the metal microparticles to the particle diameter (D) of the metal microparticles is controlled by controlling the molar ratio of metal and sulfate ions in the mixed fluid to be processed.
摘要:
The present invention addresses the problem of providing a new method for increasing the production of fine particles. Using at least two types of fluids to be processed, a raw material fluid containing at least one type of fine particle raw material and a fluid for treating the fine particle raw material, fine particles are obtained by mixing the fluids to be processed in a thin film fluid formed between at least two processing surfaces (1, 2) which are disposed to be faced with each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other. At this time, the production of the fine particles is increased by introducing the raw material fluid from the centers of the processing surfaces (1, 2).
摘要:
Provided is a method for producing an oxide and/ or hydroxide characterized in that the ratio of oxide and hydroxide has been controlled. The method produces an oxide, a hydroxide, or a mixture thereof, and obtains an oxide and/ or a hydroxide characterized in that the ratio of oxide and hydroxide has been controlled by means of changing a specific condition relating to at least one fluid to be processed introduced between processing surfaces (1, 2) when causing the precipitation of the oxide, hydroxide, or mixture thereof by mixing an basic fluid containing at least one type of basic substance and a fluid containing at least one type of metal or metallic substance as the fluids to be processed between the processing surfaces (1, 2) that are provided facing each other, are able to approach to and separate from each other, and of which at least one rotates relative to the other. The specific condition is at least one condition selected from the group consisting of: the speed of introduction of at least one of the fluids to be processed; and the pH of at least one of the fluids to be processed.