摘要:
The present invention addresses the problem of providing a method for producing microparticles. Composite microparticles are separated by mixing at least two kinds of fluids to be processed in a thin film fluid that is formed between approachable and separable opposing processing surfaces that relatively rotate, wherein the fluids to be processed are a metal fluid comprising at least two kinds of metal elements that are dissolved in a solvent in the form of metal and/ or metal compound and a fluid for separation containing at least one kind of separating substance for separating a composite substance comprising the at least two kinds of metal elements. The molar ratio between the at least two kinds of metal elements contained in the resulting microparticles is controlled by controlling the circumferential speed of the rotation at a confluence where the metal fluid and the fluid for separation merge at this time.
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:
The invention addresses the problem of providing a novel method for controlling the particle size of deposited fine particles in a fine particle production method that introduces a fluid to be processed between at least two processing surfaces, which are disposed facing each other, are advancible and retractable, and at least one rotates relative to the other, to deposit fine particles in the thin fluid film which forms between said processing surfaces. A fluid to be processed is introduced between processing surfaces (1, 2) that are disposed facing each other, are advancible and retractable, and at least one rotates relative to the other to deposit fine particles in the thin fluid film that forms between the processing surfaces (1, 2). The particle size of said fine particles is controlled by controlling the temperature of the fluid to be processed that contains the deposited fine particles. Said temperature control can be accomplished by providing a temperature adjusting apparatus (33) and a jacket (34) in the flow channel or receptacle for the fluid to be processed after outflow and controlling the temperature of the fluid to be processed that contains the deposited fine particles.
摘要:
Provided is a more suitable method for producing ceramic microparticles. The present invention uses at least two types of fluids to be processed; at least one of the fluids to be processed is a fluid containing a ceramic starting material liquid that mixes and/ or dissolves a ceramic starting material in a basic solvent; of the fluids aside from the ceramic starting material liquid, at least one of the fluids to be processed is a fluid containing a solvent for precipitating ceramic microparticles; and ceramic microparticles are precipitated by mixing the fluid containing the ceramic starting material liquid and the fluid containing the solvent for precipitating ceramic microparticles within a thin film fluid formed between at least two surfaces (1,2) for processing that are provided facing each other, are able to approach and separate each other, and of which one is able to rotate with respect to the other. Ceramic microparticles having as increased crystallinity are obtained by mixing the fluid containing the precipitated ceramic microparticles precipitate and a fluid containing an acidic substance.
摘要:
In order to enable the more stable performance of uniform treatment such as reaction by reducing pulsation generated in a fluid introduced between treatment surfaces using a micropump effect, provided is a device for treating an object to be treated between treatment surfaces (1, 2) facing each other of treatment parts which can move close to and away from each other and at least one of which rotates relatively with respect to the other, and performing the treatment by introducing a fluid between the treatment surfaces using a micropump effect by a recessed section (13) formed in at least one of the treatment surfaces (1, 2) and mixing and stirring the fluid between the treatment surfaces. The micropump effect generates force in the direction in which the treatment surfaces (1, 2) move away from each other by the rotation of a treatment part (10) and the recessed section (13) formed in the treatment surface (1) to thereby produce the effect of introducing the fluid between the treatment surfaces (1, 2). The recessed section (13) is formed so as to extend in the circumferential direction and inward/outward direction of the treatment surface (1), and multiple recessed sections (13) are provided or an additional recessed section (α) different from the recessed sections (13) is formed in at least one of the treatment surfaces (1, 2).
摘要:
A fluid processing apparatus for processing a material to be processed between processing surfaces (1, 2) of processing members capable of approaching to and separating from each other, so as to rotate relative to each other, introduces a first fluid between the processing surfaces (1, 2), introduces a second fluid between the processing surfaces (1, 2) from another flow path (d2) independent of the first fluid, and mixes and stirs the first and second fluids between the processing surfaces (1, 2) to undergo treatment. A processing member (20) of the apparatus is composed by assembling a plurality of divided components of the processing member (20a, 20b). An opening (d20) and a flow path (d2) are formed in the space between the plurality of components of the processing member (20a, 20b). This eliminates the need to create all ring-shaped disks which are the processing member (20) as one block, and also eliminates the need to substantially process the flow path (d2) leading to the opening (d20), thereby making it possible to easily undergo decomposition and cleaning.
摘要:
A fluid is processed between processing surfaces capable of approaching to and separating from each other, at least one of which rotates relative to the other. A first fluid containing a material to be processed is introduced between processing surfaces 1 and 2, by using a micropump effect acting with a depression 13 arranged on the processing surfaces from the center of the rotating processing surfaces. A second fluid containing a material to be processed, independent of this introduced fluid, is introduced from another fluid path d2 that is provided with an opening d20 leading to the processing surfaces, whereby the processing is done by mixing and stirring between the processing members 1 and 2. In a plane along the processing surfaces, directionality accompanies the introducing direction from the opening of the second fluid into the processing surfaces. Regarding the introducing direction of the second fluid, it is an outward direction away from the center for the fluid in the radial direction on the processing surface, and it is a forward direction for the fluid in the rotation direction of the fluid between the rotating processing surfaces.
摘要:
The present invention provides a method for producing nanoparticles, which comprises maintaining a minute space of 1 mm or less between two processing surfaces capable of approaching to and separating from each other and being rotating relative to each other, allowing the minute space maintained between the two processing surfaces to serve as a flow path of a processed fluid thereby forming a forced thin film of the processed fluid and separating nanoparticles in the forced thin film.