HIGH-PRESSURE TREATING DEVICE, METHOD FOR SUPPLYING MATERIAL TO HIGH-PRESSURE TREATING DEVICE AND METHOD FOR PROTECTING HIGH-PRESSURE TREATING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a high-pressure treating device having a high-pressure reaction vessel excellent in safety and corrosion resistance and a method for protecting the high-pressure reaction vessel. ;SOLUTION: This high-pressure treating device has a first solid storage tank 101, a second slid storage tank 103, a means 309 for supplying a reaction medium into a high-pressure reaction vessel 200, a mechanism for supplying a first fluid between a first sealing mechanism and a second sealing mechanism, a mechanism for supplying a second fluid between the second sealing mechanism and the high-pressure reaction vessel and a means for forming such a pressure gradient that the pressure between the first sealing mechanism and the second sealing mechanism and the pressure between the second sealing mechanism and the high-pressure reaction vessel are gradually decreased toward the high- pressure reaction vessel.;COPYRIGHT: (C)2000,JPO