JPS56125491A - Method of deliming and granulation for coal slurry - Google Patents

Method of deliming and granulation for coal slurry

Info

Publication number
JPS56125491A
JPS56125491A JP2894880A JP2894880A JPS56125491A JP S56125491 A JPS56125491 A JP S56125491A JP 2894880 A JP2894880 A JP 2894880A JP 2894880 A JP2894880 A JP 2894880A JP S56125491 A JPS56125491 A JP S56125491A
Authority
JP
Japan
Prior art keywords
coal
slurry
surfactant
added
deliming
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
JP2894880A
Other languages
Japanese (ja)
Other versions
JPS585232B2 (en
Inventor
Hiroshi Kamata
Kazumoto Saito
Toshiaki Murata
Korehisa Miwa
Masao Goto
Toshiro Fukuda
Jun Taguchi
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.)
Sanyo Chemical Industries Ltd
Zaidan Hojin Sekitan Gijutsu Kenkyusho
Original Assignee
Sanyo Chemical Industries Ltd
Zaidan Hojin Sekitan Gijutsu Kenkyusho
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 Sanyo Chemical Industries Ltd, Zaidan Hojin Sekitan Gijutsu Kenkyusho filed Critical Sanyo Chemical Industries Ltd
Priority to JP55028948A priority Critical patent/JPS585232B2/en
Priority to US06/169,807 priority patent/US4331447A/en
Priority to CA000369493A priority patent/CA1157794A/en
Priority to AU67442/81A priority patent/AU526115B2/en
Publication of JPS56125491A publication Critical patent/JPS56125491A/en
Publication of JPS585232B2 publication Critical patent/JPS585232B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Glanulating (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

PURPOSE: To delime coal with good workability at lower cost, by a method in which an oil is added to an aqueous slurry of pulverized coal to which is added a surfactant and the slurry is stirred.
CONSTITUTION: To an aqueous slurry of pulverized coal of approx. 50% or less concentrations is added 10W2,000ppm (based on coal amount) surfactant (e.g., a nonionic surfactant and/or an anionic surfactant), together with, if necessary, 5% or less (based on the aqueous slurry) inorganic electrolyte (e.g., Na2HPO4), and then the equeous slurry is further mixed with 2W30% (based on coal amount) oil (e.g., an organic liquid immiscible with water, such as hydrocarbon oils) and stirred at a revolving speed of approx. 300W1,500rpm for deliming and granulation. Then, the granular coal obtained of a grain size of 0.2W5mm is screened and the slurry containing ungranulated coal and lime is separated for removal to obtain delimed coal granules.
COPYRIGHT: (C)1981,JPO&Japio
JP55028948A 1980-03-04 1980-03-06 Deashing and powdering method Expired JPS585232B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP55028948A JPS585232B2 (en) 1980-03-06 1980-03-06 Deashing and powdering method
US06/169,807 US4331447A (en) 1980-03-04 1980-07-17 Coal treatment for ash removal and agglomeration
CA000369493A CA1157794A (en) 1980-03-04 1981-01-28 Coal treatment for ash removal and agglomeration
AU67442/81A AU526115B2 (en) 1980-03-04 1981-02-19 Removal of ash from and agglomeration of coals using a surfactant and an oil fraction binder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55028948A JPS585232B2 (en) 1980-03-06 1980-03-06 Deashing and powdering method

Publications (2)

Publication Number Publication Date
JPS56125491A true JPS56125491A (en) 1981-10-01
JPS585232B2 JPS585232B2 (en) 1983-01-29

Family

ID=12262623

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55028948A Expired JPS585232B2 (en) 1980-03-04 1980-03-06 Deashing and powdering method

Country Status (1)

Country Link
JP (1) JPS585232B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56149495A (en) * 1980-04-21 1981-11-19 Kao Corp Granulating agent for water slurry of coal powder
JPS58136698A (en) * 1982-02-08 1983-08-13 Kawasaki Heavy Ind Ltd Preparation of highly concentrated coal slurry
JPS59105090A (en) * 1982-12-09 1984-06-18 Ube Ind Ltd Deashing of coal
JPS61215698A (en) * 1986-03-20 1986-09-25 Neos Co Ltd Additive for water-slurried coal
JPH02169693A (en) * 1988-12-22 1990-06-29 Taiho Ind Co Ltd Material for treatment of coking coal
KR20180008771A (en) 2015-06-24 2018-01-24 제이에프이 스틸 가부시키가이샤 Ferro-coke production method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149331U (en) * 1983-03-26 1984-10-05 株式会社東海理化電機製作所 switch device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56125486A (en) * 1980-03-05 1981-10-01 Sanyo Chem Ind Ltd Additive for deliming and granulation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56125486A (en) * 1980-03-05 1981-10-01 Sanyo Chem Ind Ltd Additive for deliming and granulation

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56149495A (en) * 1980-04-21 1981-11-19 Kao Corp Granulating agent for water slurry of coal powder
JPS58136698A (en) * 1982-02-08 1983-08-13 Kawasaki Heavy Ind Ltd Preparation of highly concentrated coal slurry
JPS6010073B2 (en) * 1982-02-08 1985-03-14 川崎重工業株式会社 Method for producing highly concentrated coal slurry
JPS59105090A (en) * 1982-12-09 1984-06-18 Ube Ind Ltd Deashing of coal
JPH0138436B2 (en) * 1982-12-09 1989-08-14 Ube Industries
JPS61215698A (en) * 1986-03-20 1986-09-25 Neos Co Ltd Additive for water-slurried coal
JPS6328959B2 (en) * 1986-03-20 1988-06-10 Neos Kk
JPH02169693A (en) * 1988-12-22 1990-06-29 Taiho Ind Co Ltd Material for treatment of coking coal
KR20180008771A (en) 2015-06-24 2018-01-24 제이에프이 스틸 가부시키가이샤 Ferro-coke production method
US11111441B2 (en) 2015-06-24 2021-09-07 Jfe Steel Corporation Method for producing ferrocoke

Also Published As

Publication number Publication date
JPS585232B2 (en) 1983-01-29

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