摘要:
PROBLEM TO BE SOLVED: To provide a powder-processing device and powder-processing method which can increase an efficiency of processing a powder while securing safety.SOLUTION: A processing space SP is provided inside a reaction container 2. A first gas-introduction inlet 2a is provided on a lower end part of the reaction container 2. A dispersion plate 4 is attached to the gas-introduction inlet 2a. Another gas-introduction inlet 2b is provided on a lower side surface of the reaction container. In a state where a powder 10 is accommodated on the dispersion plate 4 inside the reaction container, nitrogen gas is introduced from the gas-introduction inlet 2a to the space SP for processing by passing through the dispersion plate 4, and a processing gas is introduced from the other gas-introduction inlet 2b to the space SP for processing without passing through the dispersion plate 4.
摘要:
A method (20) of making a fuel is disclosed. The method has a first step of exposing a liquid having biologically derived particles therein to an ultrasonic wave producing cavitation in the liquid and release of a precursor of the fuel from at least some of the particles into the liquid (22). The method also comprises the step of exposing the liquid with another ultrasonic wave insufficient to produce substantial cavitation in the liquid, the another ultrasonic wave providing a reaction between the liquid and the precursor to form the fuel (24).
摘要:
PROBLEM TO BE SOLVED: To provide a method for stably producing bisphenol A for a long period through preventing local catalyst deterioration by eliminating the deviated flow of a reaction liquid flowing through an ion exchange resin catalyst in the reactor, and to provide a vertical-type stationary bed reactor for the method. SOLUTION: The method for producing bisphenol A comprises a reaction process of making a phenol feedstock and an acetone feedstock flow through the vertical-type stationary bed reactor packed with the ion exchange resin catalyst and obtaining a bisphenol A-containing reaction liquid. In this process, at least part of the ion exchange resin catalyst is fluidized during 1.0-5.0°C in the absolute value of the temperature difference(ΔT) between the temperature of the reaction liquid at a position in the range falling within 20% catalyst height from the exit of the ion exchange resin catalyst bed formed in the reactor and the temperature of the reaction liquid at the exit of the reactor. COPYRIGHT: (C)2007,JPO&INPIT