Immediately-before-stirring-type fluid processing device and processing method

An immediately-before-stirring-type fluid processing apparatus, wherein the apparatus comprises:

• at least two processing surfaces disposed in a position facing each other;
• and
• a rotating mechanism which rotates at least one of the at least two processing surfaces relative to the other of the at least two processing surfaces,
• wherein the fluid processing apparatus configured such that the at least two processing surfaces define a circular flow path through which a fluid to be processed passes, and such that fluid processing of the fluid to be processed can be carried out between the at least two processing surfaces when the fluid to be processed under a state of being in a thin film fluid passes through the circular flow path from an inner side to an outer side in a radius direction thereof,
• wherein a cylindrical stirring space is arranged in an inner side of the circular flow path in a radius direction,
• wherein a stirring blade and an independent adjusting device are disposed in the stirring space,
• wherein the stirring blade rotates together with the at least one of the processing surfaces,
• wherein the independent adjusting device is disposed so as to be movable against the stirring blade, and
• wherein by moving the independent adjusting device, a stirring ability to the fluid to be processed in the stirring space changes independently from a rotation number of the at least one of the processing surfaces.

An immediately-before-stirring-type fluid processing method, comprising the steps of:

• using a fluid processing apparatus in which at least one of at least two processing surfaces that are disposed in a position facing each other rotates relative to the other of the at least two processing surfaces with a rotation number of 6000 rpm or less;
• introducing a fluid to be processed into a circular flow path defined by the at least two processing surfaces;
• passing the fluid to be processed that is made to a thin film fluid between the at least two processing surfaces through the circular flow path from an inside to an outside in a radius direction thereof, thereby carrying out a reaction treatment in the thin film fluid;
• to the fluid to be processed that is before being introduced into the fluid processing apparatus, carrying out preliminary adjusting steps including a preparation step to adjust a mixing and dissolution state thereof and a temperature adjusting step to adjust a temperature thereof;
• feeding the fluid to be processed after having been subjected to the preliminary adjusting steps into the fluid processing apparatus;
• carrying out an immediately-before-stirring-step before the reaction treatment in the fluid processing apparatus;
• in the immediately-before-stirring-step, disposing a stirring blade in a cylindrical stirring space disposed in an inner side of the circular flow path in a radius direction thereof, and giving a stirring energy to the fluid to be processed by rotation thereof so as to carry out a stirring treatment to the fluid to be processed that is immediately before being introduced into the circular flow path;
• and
• carrying out the reaction treatment in the thin film fluid that is formed when the fluid to be processed is passing through between the at least two processing surfaces under a laminar flow condition.