Title:
METHOD FOR TREATING EXCESS AMMONIACAL LIQUOR
Document Type and Number:
Japanese Patent JP2016112516
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for treating excess ammonia liquor continuously and stably over a long period of time.SOLUTION: A part of excess ammonia liquor generated during purifying coke oven gas is introduced into a decompression type ammonia stripper 1 and subjected to vacuum distillation, ammonia is removed from a part of the excess ammonia liquor and ammonia-containing steam distilled from the decompression type ammonia stripper 1 is introduced into a condenser 11, followed by cooling and condensation. At this time, the ammonia-containing steam is condensed while spraying the other part of the ammonia liquor to the vicinity of an introduction port into which the ammonia-containing steam is introduced of an inner surface of the condenser 11.SELECTED DRAWING: Figure 1
Inventors:
NITTA JUNYA
Application Number:
JP2014253958A
Publication Date:
June 23, 2016
Filing Date:
December 16, 2014
Export Citation:
Assignee:
JFE CHEMICAL CORP
International Classes:
C02F1/20; B01D5/00; B01D19/00; C10B45/00
Domestic Patent References:
| JPS52148962A | 1977-12-10 | |||
| JP2005239934A | 2005-09-08 | |||
| JP2007045852A | 2007-02-22 | |||
| JP2005213436A | 2005-08-11 | |||
| JPS5541860A | 1980-03-24 | |||
| JPH07256233A | 1995-10-09 | |||
| JPS61234982A | 1986-10-20 | |||
| JPH059476A | 1993-01-19 | |||
| JP2003112001A | 2003-04-15 | |||
| JP2007039613A | 2007-02-15 |
Foreign References:
| US4323430A | 1982-04-06 |
Attorney, Agent or Firm:
Tetsuya Mori
Suzuki Isobe
Hide Tanaka Tetsu
Ichi Hirose
Toru Miyasaka
Suzuki Isobe
Hide Tanaka Tetsu
Ichi Hirose
Toru Miyasaka