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 coal

Info

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
Application number
FR7502633A
Other languages
French (fr)
Other versions
FR2268062B2 (en
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.)
Chemische Fabrik Kalk GmbH
Original Assignee
Chemische Fabrik Kalk GmbH
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
Priority claimed from DE2419444A external-priority patent/DE2419444C3/en
Application filed by Chemische Fabrik Kalk GmbH filed Critical Chemische Fabrik Kalk GmbH
Publication of FR2268062A2 publication Critical patent/FR2268062A2/en
Application granted granted Critical
Publication of FR2268062B2 publication Critical patent/FR2268062B2/fr
Granted legal-status Critical Current

Links

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.
FR7502633A 1974-04-23 1975-01-28 Preventing spontaneous combustion of underground coal - by injecting surfactant contg metal chloride soln into borings in coal Granted FR2268062A2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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