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JPS6475590A - Production of coal-water slurry in high concentration - Google Patents

Production of coal-water slurry in high concentration

Info

Publication number
JPS6475590A
JPS6475590A JP23455687A JP23455687A JPS6475590A JP S6475590 A JPS6475590 A JP S6475590A JP 23455687 A JP23455687 A JP 23455687A JP 23455687 A JP23455687 A JP 23455687A JP S6475590 A JPS6475590 A JP S6475590A
Authority
JP
Japan
Prior art keywords
coal
desulfurizing
high concentration
slurry
surfactant
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
JP23455687A
Other languages
Japanese (ja)
Inventor
Hitoshi Tominaga
Hiromitsu Ota
Hiroshi Takezaki
Hirobumi Yoshikawa
Kazunori Shoji
Yoshinori Otani
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.)
Hitachi Ltd
Mitsubishi Power Ltd
Tokyo Electric Power Company Holdings Inc
Original Assignee
Babcock Hitachi KK
Tokyo Electric Power Co Inc
Hitachi 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 Babcock Hitachi KK, Tokyo Electric Power Co Inc, Hitachi Ltd filed Critical Babcock Hitachi KK
Priority to JP23455687A priority Critical patent/JPS6475590A/en
Publication of JPS6475590A publication Critical patent/JPS6475590A/en
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Carbonaceous Fuels (AREA)

Abstract

PURPOSE:To obtain the titled slurry having a low ash and sulfur contents and excellent fluidity, by using the same surfactant as that used in a step of producing the slurry except a step of desulfurizing coal as a floating inhibitor therein. CONSTITUTION:A formalin condensate of naphthalenesulfonate used in producing a coal-water slurry in a high concentration, etc., are used as a floating inhibitor for coal in a desulfurizing step to selectively float and separate FeS2 separated as a simple substance in the desulfurizing step. Floating of coal particles similarly separated as simple substance is effectively inhibited to separate the coal particles from the FeS2. The surfactant used in the desulfurizing step can be circulated through steps using the surfactant except the desulfurizing step for reuse.
JP23455687A 1987-09-18 1987-09-18 Production of coal-water slurry in high concentration Pending JPS6475590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23455687A JPS6475590A (en) 1987-09-18 1987-09-18 Production of coal-water slurry in high concentration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23455687A JPS6475590A (en) 1987-09-18 1987-09-18 Production of coal-water slurry in high concentration

Publications (1)

Publication Number Publication Date
JPS6475590A true JPS6475590A (en) 1989-03-22

Family

ID=16972874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23455687A Pending JPS6475590A (en) 1987-09-18 1987-09-18 Production of coal-water slurry in high concentration

Country Status (1)

Country Link
JP (1) JPS6475590A (en)

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