FR2268062A2 - Preventing spontaneous combustion of underground coal - by injecting surfactant contg metal chloride soln into borings in coal - Google Patents
Preventing spontaneous combustion of underground coal - by injecting surfactant contg metal chloride soln into borings in coalInfo
- Publication number
- FR2268062A2 FR2268062A2 FR7502633A FR7502633A FR2268062A2 FR 2268062 A2 FR2268062 A2 FR 2268062A2 FR 7502633 A FR7502633 A FR 7502633A FR 7502633 A FR7502633 A FR 7502633A FR 2268062 A2 FR2268062 A2 FR 2268062A2
- Authority
- FR
- France
- Prior art keywords
- coal
- spontaneous combustion
- agent
- borings
- metal chloride
- 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
- 239000003245 coal Substances 0.000 title abstract 4
- 238000002485 combustion reaction Methods 0.000 title abstract 3
- 230000002269 spontaneous effect Effects 0.000 title abstract 3
- 229910001510 metal chloride Inorganic materials 0.000 title 1
- 239000004094 surface-active agent Substances 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 abstract 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 abstract 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 239000001110 calcium chloride Substances 0.000 abstract 1
- 229910001628 calcium chloride Inorganic materials 0.000 abstract 1
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical group OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- 125000003827 glycol group Chemical group 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 229910001629 magnesium chloride Inorganic materials 0.000 abstract 1
- 229920000151 polyglycol Polymers 0.000 abstract 1
- 239000010695 polyglycol Substances 0.000 abstract 1
- 239000000080 wetting agent Substances 0.000 abstract 1
- 230000003245 working effect Effects 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K21/00—Fireproofing materials
- C09K21/02—Inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/10—Treating solid fuels to improve their combustion by using additives
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/18—Impregnating walls, or the like, with liquids for binding dust
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The parent patent describes an agent for preventing spontaneous combustion of coal in underground workings which consists of a major proportion of calcium and/or magnesium chloride, and contains wetting agents, esp. ethers of dialkyl-phenyl-polyglycols with 5-20 glycol groups in the glycol ether group, and 1-9C alkyl groups. In this addition agent is introduced under pressure in the form of an aqs. soln. contg. 25-35 wt. % of the agent into holes bored into the mass of coal. Gives good protection against spontaneous combustion with less frequent inspection and fewer applications of the agent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2419444A DE2419444C3 (en) | 1973-04-25 | 1974-04-23 | Substrate for an enzyme |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2268062A2 true FR2268062A2 (en) | 1975-11-14 |
| FR2268062B2 FR2268062B2 (en) | 1978-07-13 |
Family
ID=5913645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7502633A Granted FR2268062A2 (en) | 1974-04-23 | 1975-01-28 | Preventing spontaneous combustion of underground coal - by injecting surfactant contg metal chloride soln into borings in coal |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2268062A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2425251A1 (en) * | 1978-05-13 | 1979-12-07 | Kalk Chemische Fabrik Gmbh | STORED COAL TREATMENT PROCESS |
| WO2018222062A1 (en) * | 2017-06-01 | 2018-12-06 | Aquastatin Ltd. Belgrade | Agent for suppression dust, fire and ice |
-
1975
- 1975-01-28 FR FR7502633A patent/FR2268062A2/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2425251A1 (en) * | 1978-05-13 | 1979-12-07 | Kalk Chemische Fabrik Gmbh | STORED COAL TREATMENT PROCESS |
| WO2018222062A1 (en) * | 2017-06-01 | 2018-12-06 | Aquastatin Ltd. Belgrade | Agent for suppression dust, fire and ice |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2268062B2 (en) | 1978-07-13 |
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