JPS55167140A - External heating type kiln for manufacturing cobalt oxide - Google Patents

External heating type kiln for manufacturing cobalt oxide

Info

Publication number
JPS55167140A
JPS55167140A JP7226879A JP7226879A JPS55167140A JP S55167140 A JPS55167140 A JP S55167140A JP 7226879 A JP7226879 A JP 7226879A JP 7226879 A JP7226879 A JP 7226879A JP S55167140 A JPS55167140 A JP S55167140A
Authority
JP
Japan
Prior art keywords
gas
cobalt oxide
starting material
nitric acid
soln
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.)
Pending
Application number
JP7226879A
Other languages
Japanese (ja)
Inventor
Usaburo Sato
Seiji Hashimoto
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.)
Eneos Corp
Original Assignee
Nippon Mining Co 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 Nippon Mining Co Ltd filed Critical Nippon Mining Co Ltd
Priority to JP7226879A priority Critical patent/JPS55167140A/en
Publication of JPS55167140A publication Critical patent/JPS55167140A/en
Pending legal-status Critical Current

Links

Landscapes

  • Inorganic Compounds Of Heavy Metals (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Abstract

PURPOSE: To recover nitric acid from NOx gas in exhaust gas by dissolving metalliccobalt in nitric acid, thermally decomposing the resulting aqueous cobalt nitrate soln. to obtain cobalt oxide, and washing gas generated.
CONSTITUTION: External heating type kiln 1 for manufacturing cobalt oxide is composed of product releasing tapered tip section 4 and body 2, and section 4 is lowered at an incline of 3/90 to the horizontal plane. Starting material soln. S fed from starting material supply pipe 28 flows down to thermal decomposition region 42 through reservoir region 40. In region 42 soln. S is thermally decomposed at 300W350°C to obtain cobalt oxide, and simultaneously NOx gas G is generated. Water is converted into steam by evaporation and drawn out of gas hole 32 of starting material supply means 20 together with gas G. The decomposition gas thus recovered is fed to a nitric acid manufacturing apparatus through gas recovering pipe 30.
COPYRIGHT: (C)1980,JPO&Japio
JP7226879A 1979-06-11 1979-06-11 External heating type kiln for manufacturing cobalt oxide Pending JPS55167140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7226879A JPS55167140A (en) 1979-06-11 1979-06-11 External heating type kiln for manufacturing cobalt oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7226879A JPS55167140A (en) 1979-06-11 1979-06-11 External heating type kiln for manufacturing cobalt oxide

Publications (1)

Publication Number Publication Date
JPS55167140A true JPS55167140A (en) 1980-12-26

Family

ID=13484360

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7226879A Pending JPS55167140A (en) 1979-06-11 1979-06-11 External heating type kiln for manufacturing cobalt oxide

Country Status (1)

Country Link
JP (1) JPS55167140A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017014040A (en) * 2015-06-30 2017-01-19 住友金属鉱山株式会社 Method for producing nickel oxide powder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017014040A (en) * 2015-06-30 2017-01-19 住友金属鉱山株式会社 Method for producing nickel oxide powder

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