US 7,579,191 B2
Reaction method using microreactor
Hideharu Nagasawa, Minami-Ashigara (Japan); and Kazuhiro Mae, Kyoto (Japan)
Assigned to FUJIFILM Corporation, Tokyo (Japan)
Filed on May 27, 2004, as Appl. No. 10/854,805.
Claims priority of application No. 2003-154404 (JP), filed on May 30, 2003; and application No. 2003-189657 (JP), filed on Jul. 01, 2003.
Prior Publication US 2005/0036921 A1, Feb. 17, 2005
Int. Cl. G01N 35/08 (2006.01); B01F 15/00 (2006.01); B01L 3/02 (2006.01); G01N 35/00 (2006.01)
U.S. Cl. 436—52  [366/167.1; 422/99; 422/100; 436/43] 9 Claims
OG exemplary drawing
 
1. A reaction method comprising
flowing fluids through a microreactor,
coaxially laminating the fluids and causing the fluids to flow as laminar flows whose sections orthogonal to the co-axis are annular, and
reacting the fluids by diffusing the fluids in a normal direction of contact interfaces of the fluids,
wherein the microreactor has a plurality of fluid supply routes in communication with one reaction channel as a multicylindrical structure having a co-axis and causes a plurality of fluids to flow together in the reaction channel via the respective fluid supply routes,
wherein among said plurality of laminated fluids, at least one fluid is a fluid not participating in the reaction of other fluids and
wherein the cross-sectional thickness of said fluids participating in the reaction is varied by increasing or decreasing the flow rate of said fluid not participating in the reaction.