JPS6475589A - Production of deashed coal-water slurry - Google Patents
Production of deashed coal-water slurryInfo
- Publication number
- JPS6475589A JPS6475589A JP23441187A JP23441187A JPS6475589A JP S6475589 A JPS6475589 A JP S6475589A JP 23441187 A JP23441187 A JP 23441187A JP 23441187 A JP23441187 A JP 23441187A JP S6475589 A JPS6475589 A JP S6475589A
- Authority
- JP
- Japan
- Prior art keywords
- coal
- froth
- wet
- purified
- pulverized
- 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
Links
Landscapes
- Liquid Carbonaceous Fuels (AREA)
Abstract
PURPOSE:To obtain the titled slurry having improved dispersibility and fluidity and excellent stability, by pulverizing coal, removing ash and S from the pulverized coal by a flotation method, dehydrating the purified coal froth and wet pulverizing or kneading the resultant froth in the presence of a surfactant. CONSTITUTION:Coal is wet or dry pulverized so that, e.g. >=80wt.% particles may pass through a 200-mesh screen, and ash, sulfur, etc., in the coal are then removed by a flotation method to provide a purified coal froth, which is then dehydrated and wet pulverized or kneaded in the presence of a surfactant, such as formalin condensate of sodium naphthalenesulfonate, to afford the aimed slurry. Furthermore, in the process, flocculants, obtained by dehydrating the purified froth and tail and consisting of metallic ions and/or polyaluminum chloride, etc., are removed and the removed water is simultaneously reutilized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23441187A JPH086106B2 (en) | 1987-09-18 | 1987-09-18 | Deashed coal-method for producing water slurry |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23441187A JPH086106B2 (en) | 1987-09-18 | 1987-09-18 | Deashed coal-method for producing water slurry |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6475589A true JPS6475589A (en) | 1989-03-22 |
JPH086106B2 JPH086106B2 (en) | 1996-01-24 |
Family
ID=16970590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23441187A Expired - Lifetime JPH086106B2 (en) | 1987-09-18 | 1987-09-18 | Deashed coal-method for producing water slurry |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH086106B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009016668A3 (en) * | 2007-08-02 | 2009-07-16 | Mario Mazza | Method for processing coal with a high content of impurities to obtain a purified fuel mixture utilizable in place of fuel oil in present-day power plants |
CN108291164A (en) * | 2015-11-25 | 2018-07-17 | 株式会社神户制钢所 | The manufacturing method of ashless coal |
-
1987
- 1987-09-18 JP JP23441187A patent/JPH086106B2/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009016668A3 (en) * | 2007-08-02 | 2009-07-16 | Mario Mazza | Method for processing coal with a high content of impurities to obtain a purified fuel mixture utilizable in place of fuel oil in present-day power plants |
US20100187090A1 (en) * | 2007-08-02 | 2010-07-29 | Mario Mazza | Method for processing coal with a high content of impurities to obtain a purified fuel mixture utilizable in place of fuel oil in present-day power plants |
CN108291164A (en) * | 2015-11-25 | 2018-07-17 | 株式会社神户制钢所 | The manufacturing method of ashless coal |
Also Published As
Publication number | Publication date |
---|---|
JPH086106B2 (en) | 1996-01-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI870999A0 (en) | PROCESS FOER SELEKTIV ANRIKNING AV KOPPARMOLYBDENMALM. | |
CN112264183A (en) | Resource treatment method of high-sulfur copper tailings, product and application thereof | |
JPS6475589A (en) | Production of deashed coal-water slurry | |
EP0201338A3 (en) | Coal-water fuel production | |
ES8701787A1 (en) | Process for preparing cellulose ethers. | |
GB2000052A (en) | Coal Beneficiation | |
BR8905827A (en) | PROCESS FOR THE PRODUCTION OF LIME MUD AND APPLIANCE FOR THE EXECUTION OF THE SAME | |
CN113546752A (en) | Two-stage floatation mica removing process for machine-made sand | |
GB609431A (en) | Improvements in the treatment of household and similar refuse for the production of manures therefrom | |
PL119578B1 (en) | Conditioning agent for froth flotation of fine coalogo shtyba | |
JPS5722118A (en) | Modifying method of gypsum formed in preparing phosphoric acid by wet process as by-product | |
RU2051752C1 (en) | Method for concentration of small-size muscovite | |
RU2005125853A (en) | COAL ENRICHMENT METHOD | |
JPS59150559A (en) | De-ashing treatment of coal | |
FR2364265A1 (en) | Processing coal for pipeline transport - as slurry in methanol, after removing sulphur and its cpds. by flotation | |
JPS5667394A (en) | Dehydrating treatment of coal-water slurry | |
JPS5765791A (en) | Production of coal-oil mixture containing deashed coal | |
GB816474A (en) | Improvements relating to the production of raw slurry for use in the manufacture of cement | |
FR2298279A1 (en) | Recovery of animal feed - from undigested and protein contg. components of manure slurries | |
CN113546751A (en) | One-stage flotation mica removing process for machine-made sand | |
JPS57162787A (en) | Preparation of coal dispesion with low moisture content | |
RU2230098C2 (en) | Water-slurried fuel manufacture method | |
JPH0469199B2 (en) | ||
JPS5643395A (en) | Recovering method of coal from slurry of raw coal | |
KR800001456B1 (en) | Process for preparing coking bond |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080124 Year of fee payment: 12 |