JPS5617638A - Flame retarding treatment of carbon material for so3/so2 conversion - Google Patents

Flame retarding treatment of carbon material for so3/so2 conversion

Info

Publication number
JPS5617638A
JPS5617638A JP9289479A JP9289479A JPS5617638A JP S5617638 A JPS5617638 A JP S5617638A JP 9289479 A JP9289479 A JP 9289479A JP 9289479 A JP9289479 A JP 9289479A JP S5617638 A JPS5617638 A JP S5617638A
Authority
JP
Japan
Prior art keywords
phosphoric acid
soln
carbon material
inert gas
impregnated
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
JP9289479A
Other languages
Japanese (ja)
Other versions
JPS5915025B2 (en
Inventor
Shinichi Ochiwa
Kenji Kunihara
Yoshikazu Hirose
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP54092894A priority Critical patent/JPS5915025B2/en
Publication of JPS5617638A publication Critical patent/JPS5617638A/en
Publication of JPS5915025B2 publication Critical patent/JPS5915025B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Catalysts (AREA)
  • Treating Waste Gases (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

PURPOSE: To obtain a carbon catalyst for SO3/SO2 conversion having high flame resistance and a long life by impregnating a carbon material with a mixed soln. of phosphoric acid and a water soluble metal salt capable of forming a highly heat resistant inorg. compound by reaction with phosphoric acid followed by heating at a predetermined temp. in an inert gas atmosphere.
CONSTITUTION: A carbon material such as carbon black is impregnated with a mixed soln. of phosphoric acid and a water soluble metal salt such as aluminum sulfate capable of forming a highly heat resistant inorg. compound by reaction with phosphoric acid. The mixed soln. is an aqueous soln. contg. the salt and phosphoric acid in 1:0.5W1:5 molar ratio. The impregnated carbon material is then activated by heating at 500W1,000°C in an atmosphere of an inert gas such as N2. This heat treatment is preferably carried out after separating the soln. from the impregnated material by filtration and drying the material at about 150°C in an atmosphere of an inert gas such as N2.
COPYRIGHT: (C)1981,JPO&Japio
JP54092894A 1979-07-21 1979-07-21 Flame retardant treatment method for carbon material for SO↓3/SO↓2 conversion Expired JPS5915025B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54092894A JPS5915025B2 (en) 1979-07-21 1979-07-21 Flame retardant treatment method for carbon material for SO↓3/SO↓2 conversion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54092894A JPS5915025B2 (en) 1979-07-21 1979-07-21 Flame retardant treatment method for carbon material for SO↓3/SO↓2 conversion

Publications (2)

Publication Number Publication Date
JPS5617638A true JPS5617638A (en) 1981-02-19
JPS5915025B2 JPS5915025B2 (en) 1984-04-07

Family

ID=14067159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54092894A Expired JPS5915025B2 (en) 1979-07-21 1979-07-21 Flame retardant treatment method for carbon material for SO↓3/SO↓2 conversion

Country Status (1)

Country Link
JP (1) JPS5915025B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584405A (en) * 1983-04-18 1986-04-22 Texaco Inc. Activated carbon catalysts and preparation of linear polyethylene polyamines therewith

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109364735B (en) * 2018-11-07 2021-05-18 江西理工大学 Method for reducing sulfur trioxide in nonferrous smelting flue gas by using metal sulfide
CN109364734B (en) * 2018-11-07 2021-05-11 江西理工大学 Method for reducing output of waste acid in non-ferrous metal smelting flue gas treatment process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584405A (en) * 1983-04-18 1986-04-22 Texaco Inc. Activated carbon catalysts and preparation of linear polyethylene polyamines therewith

Also Published As

Publication number Publication date
JPS5915025B2 (en) 1984-04-07

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