JPS57162788A - Preparation of coal dispersion with low moisture content - Google Patents

Preparation of coal dispersion with low moisture content

Info

Publication number
JPS57162788A
JPS57162788A JP4615181A JP4615181A JPS57162788A JP S57162788 A JPS57162788 A JP S57162788A JP 4615181 A JP4615181 A JP 4615181A JP 4615181 A JP4615181 A JP 4615181A JP S57162788 A JPS57162788 A JP S57162788A
Authority
JP
Japan
Prior art keywords
moisture content
low
mineral oil
mixture
volatile mineral
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
JP4615181A
Other languages
Japanese (ja)
Inventor
Tsuneo Miyashita
Tsutomu Fukushima
Masao Yamaguchi
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.)
KOKAN KOGYO KK
Kokan Mining Co Ltd
JFE Engineering Corp
Original Assignee
KOKAN KOGYO KK
Kokan Mining Co Ltd
NKK Corp
Nippon Kokan 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 KOKAN KOGYO KK, Kokan Mining Co Ltd, NKK Corp, Nippon Kokan Ltd filed Critical KOKAN KOGYO KK
Priority to JP4615181A priority Critical patent/JPS57162788A/en
Publication of JPS57162788A publication Critical patent/JPS57162788A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To obtain the titled dispersion capable of reducing the content and improving the thermal efficiency, by adding a low-volatile mineral oil to a mixture of a finely pulverized coal with water, adding a surfactant, etc. thereto, and stirring the resultant mixture.
CONSTITUTION: 0.2W5.0%, based on the final moisture content, low-volatile mineral oil, e.g. purified kerosene or light oil, is added to a mixture of a finely pulverized coal having a particle diameter ≤3mm with water to form an oily film on the surface of coal particles and adjust the moisture content. A foamable surfactant or polyelectrolyte dispersing agent is added to the resultant mixtue and stirred to afford the aimed dispersion.
EFFECT: The low-volatile mineral oil is capable of acting as a collecting agent for in ore floatation or efficiency improver in gravity concetration and further improving the moisture reducing action.
COPYRIGHT: (C)1982,JPO&Japio
JP4615181A 1981-03-31 1981-03-31 Preparation of coal dispersion with low moisture content Pending JPS57162788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4615181A JPS57162788A (en) 1981-03-31 1981-03-31 Preparation of coal dispersion with low moisture content

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4615181A JPS57162788A (en) 1981-03-31 1981-03-31 Preparation of coal dispersion with low moisture content

Publications (1)

Publication Number Publication Date
JPS57162788A true JPS57162788A (en) 1982-10-06

Family

ID=12738974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4615181A Pending JPS57162788A (en) 1981-03-31 1981-03-31 Preparation of coal dispersion with low moisture content

Country Status (1)

Country Link
JP (1) JPS57162788A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414026A (en) * 1981-07-30 1983-11-08 Nippon Kokan Kabushiki Kaisha Method for the production of ferrochromium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414026A (en) * 1981-07-30 1983-11-08 Nippon Kokan Kabushiki Kaisha Method for the production of ferrochromium
US4515352A (en) * 1981-07-30 1985-05-07 Nippon Kokan Kabushiki Kaisha Rotary furnace used for the production of ferrochromium

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