Title: Method and equipment for preparing high concn. alkali
Application Number: 85103946 Application Date: 1985.05.22
Publication Number: 1005004 Publication Date: 1986.11.19
Approval Pub. Date: Granted Pub. Date: 1990.11.21
International Classifi-cation: B01D1/26,C01D1/42
Applicant(s) Name: Ube Industries, Ltd. Address:
Inventor(s) Name: Katsuyuki Ohayashi, Nobujiro Yokota (JP) Robert Wi
Attorney & Agent: YU HUIJUN DAI ZHENXIU
Abstract:
     Aq. alkali. is conc. under high tamp. and high pressure. Then the conc. alkali. is subjected to low pressure, lower than ambient pressure. The pressure dectease between high pressure vessel and low pressure vessel is by an absorbing apparatus which may be U type siphon liq. column preferably, so abrasieness and corrosion can be decreased greatly.
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