EP 3800235 A1 20210407 - COAL ANTI-OXIDATION AGENT AND COAL OXIDATION PREVENTION METHOD
Title (en)
COAL ANTI-OXIDATION AGENT AND COAL OXIDATION PREVENTION METHOD
Title (de)
ANTIOXIDATIONSSMITTEL FÜR KOHLE UND VERFAHREN ZUR VERHINDERUNG DER KOHLEOXIDATION
Title (fr)
AGENT ANTI-OXYDATION DE CHARBON ET PROCÉDÉ DE PRÉVENTION D'OXYDATION DE CHARBON
Publication
Application
Priority
- JP 2018152252 A 20180813
- JP 2019015786 W 20190411
Abstract (en)
Provided is an antioxidant capable of coating the surface layer of a coal deposit (coal pile) and further reducing the amount of oxygen permeation into the inside of the deposit. The present invention is an antioxidant for coal, containing an oil-in-water type resin emulsion having an average particle size of emulsion particles of 0.3 µm or more and 1.0 µm or less. The antioxidant preferably further contains a surfactant. The worker sprays the above antioxidant on the coal deposit. This forms a consolidated layer on the surface of the coal deposit that is highly effective in suppressing oxygen permeation. Therefore, the permeation of oxygen in the air atmosphere into the inside of the coal deposit is blocked, thus preventing the oxidation of the coal.
IPC 8 full level
C10L 10/18 (2006.01)
CPC (source: EP KR US)
C10L 5/04 (2013.01 - EP); C10L 5/32 (2013.01 - EP); C10L 5/36 (2013.01 - EP); C10L 9/10 (2013.01 - EP); C10L 10/00 (2013.01 - EP); C10L 10/18 (2013.01 - EP KR US); C10L 2230/081 (2013.01 - EP KR US); C10L 2230/14 (2013.01 - EP); C10L 2250/04 (2013.01 - EP); C10L 2250/06 (2013.01 - EP KR US); C10L 2250/082 (2013.01 - EP KR US); C10L 2250/086 (2013.01 - KR US); C10L 2290/18 (2013.01 - EP); C10L 2290/20 (2013.01 - KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3800235 A1 20210407; EP 3800235 A4 20210804; CN 112313314 A 20210202; JP 2020026489 A 20200220; KR 20210020140 A 20210223; PH 12020552209 A1 20210628; TW 202020131 A 20200601; US 2021292674 A1 20210923; WO 2020035973 A1 20200220
DOCDB simple family (application)
EP 19849474 A 20190411; CN 201980040595 A 20190411; JP 2018152252 A 20180813; JP 2019015786 W 20190411; KR 20217001413 A 20190411; PH 12020552209 A 20201217; TW 108123678 A 20190704; US 201917266109 A 20190411