METHOD FOR PURIFYING AMMONIA AND AMMONIA PURIFICATION SYSTEM

WIPO Patent Application WO/2012/132560

A1

The present invention is a method for purifying ammonia and an ammonia purification system with which ammonia can be purified at a high recovery rate by a simple procedure and in a short purification time under low energy consumption. A second partial condenser (3) of an ammonia purification system (100) partially condenses crude ammonia gasified by a first evaporator (2) and separates and removes, as a liquid-phase component, the impurities having low volatility from the crude ammonia. A first partial condenser (5) partially condenses the gas-phase component separated by the second partial condenser (3) and separates and removes, as a gas-phase component, the impurities having high volatility.

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TAI SHINICHI (JP)
HATA HIROYUKI (JP)
MORIMOTO SHIGERU (JP)
YOSHIDA YOSHINORI (JP)
TSUNO SHUJI (JP)
FUKUSHIMA ATSUHITO (JP)

PCT/JP2012/052779

October 04, 2012

February 07, 2012

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SUMITOMO SEIKA CHEMICALS (JP)
TAI SHINICHI (JP)
HATA HIROYUKI (JP)
MORIMOTO SHIGERU (JP)
YOSHIDA YOSHINORI (JP)
TSUNO SHUJI (JP)
FUKUSHIMA ATSUHITO (JP)

C01C1/02; C01C1/12

DD159259A3	1983-03-02
US6065306A	2000-05-23
JP4605705B2	2011-01-05
JPH10120415A	1998-05-12
JPH0462710B2	1992-10-07
JPH07240407A	1995-09-12
DE4239021A1	1994-05-26
JP2006516527A	2006-07-06
JP2004536011A	2004-12-02
JP2008505830A	2008-02-28

SAIKYO, Keiichiro (JP)
Keiichiro Saikyo (JP)

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