JPS56115685A - Detoxification method for hydrogen cyanide absorbing liquid - Google Patents

Detoxification method for hydrogen cyanide absorbing liquid

Info

Publication number
JPS56115685A
JPS56115685A JP1958380A JP1958380A JPS56115685A JP S56115685 A JPS56115685 A JP S56115685A JP 1958380 A JP1958380 A JP 1958380A JP 1958380 A JP1958380 A JP 1958380A JP S56115685 A JPS56115685 A JP S56115685A
Authority
JP
Japan
Prior art keywords
contg
aqueous soln
aqueous
tower
ozone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1958380A
Other languages
Japanese (ja)
Other versions
JPS6411358B2 (en
Inventor
Akinosuke Nishiyama
Tadao Shin
Hideto Fujiwara
Hiroyuki Matsumura
Takahiro Katayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kawasaki Heavy Industries Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Heavy Industries Ltd filed Critical Kawasaki Heavy Industries Ltd
Priority to JP1958380A priority Critical patent/JPS56115685A/en
Publication of JPS56115685A publication Critical patent/JPS56115685A/en
Publication of JPS6411358B2 publication Critical patent/JPS6411358B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Removal Of Specific Substances (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To detoxify an aqueous soln. contg. NaCN, KCN formed by absorption of HCN economically and safely by allowing said aqueous soln. to contact an ozone- contg. gas to oxidize the same to an aqueous soln. contg. NaOCN, KOCN and hydrolyzing this at specific temp.
CONSTITUTION: An aqueous soln. 4 contg. NaCN, KCN formed by absorption of HCN after smoking treatment of, for example, vegetables and fruits is sent from an absorbing liquid tank to an oxidizing tower 11 by a pump 10. In this oxidizing tower in which packings 13 such as Raschig rings are packed, the aqueous soln. 4 is sprayed from the tower top and the ozone-contg. gas generated in an ozone generator 12 is sent from the lower part, whereby these are caused to react. The aqueous sonl. 4 is oxidized in the tower 11 to an aqueous soln. 14 contg. NAOCH, KOCN. This cyanate-contg. liquid 14 is pumped 15 into a decomposing tank 16, where it is hydrolyzed at ordinary temp. or relative low temp. below 60°C, whereby it is detoxified.
COPYRIGHT: (C)1981,JPO&Japio
JP1958380A 1980-02-19 1980-02-19 Detoxification method for hydrogen cyanide absorbing liquid Granted JPS56115685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1958380A JPS56115685A (en) 1980-02-19 1980-02-19 Detoxification method for hydrogen cyanide absorbing liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1958380A JPS56115685A (en) 1980-02-19 1980-02-19 Detoxification method for hydrogen cyanide absorbing liquid

Publications (2)

Publication Number Publication Date
JPS56115685A true JPS56115685A (en) 1981-09-10
JPS6411358B2 JPS6411358B2 (en) 1989-02-23

Family

ID=12003274

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1958380A Granted JPS56115685A (en) 1980-02-19 1980-02-19 Detoxification method for hydrogen cyanide absorbing liquid

Country Status (1)

Country Link
JP (1) JPS56115685A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH088467A (en) * 1994-06-21 1996-01-12 Chodendo Sensor Kenkyusho:Kk Magnetic shielding device and magnetic shielding method
CN104772013A (en) * 2015-03-31 2015-07-15 刘艳 Method and device for stage purification waste gas with use of ozone

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0341132U (en) * 1989-08-25 1991-04-19

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH088467A (en) * 1994-06-21 1996-01-12 Chodendo Sensor Kenkyusho:Kk Magnetic shielding device and magnetic shielding method
CN104772013A (en) * 2015-03-31 2015-07-15 刘艳 Method and device for stage purification waste gas with use of ozone

Also Published As

Publication number Publication date
JPS6411358B2 (en) 1989-02-23

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