DISPERSANT FOR CARBONACEOUS SOLID WATER SLURRY

Dispersant (for carbonaceous solid-water slurries) is obtd. by polymerising the following monomers: (A) polyalkylene glycol mono(meth)acrylate monomer (0.1-7 mol.%) of formula (I) (B) sulphoalkyl(meth)acrylate monomer (5-94.9 mol.%) of formual (II), (C) unsatd. carboxylic acid monomer (5-94.9 mol.%)...

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Bibliographische Detailangaben
Hauptverfasser:	SHOICHI TAKAO, TAKAKIYO GOTO, TSUNEO TSUBAKIMOTO, YOSHIHIRO KAJIBATA, HAYAMI ITO, SHUHEI TATSUMI
Format:	Patent
Sprache:	eng
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR LIQUEFIED PETROLEUM GAS LUBRICANTS METALLURGY NATURAL GAS PEAT PETROLEUM, GAS OR COKE INDUSTRIES SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Beschreibung
Zusammenfassung:	Dispersant (for carbonaceous solid-water slurries) is obtd. by polymerising the following monomers: (A) polyalkylene glycol mono(meth)acrylate monomer (0.1-7 mol.%) of formula (I) (B) sulphoalkyl(meth)acrylate monomer (5-94.9 mol.%) of formual (II), (C) unsatd. carboxylic acid monomer (5-94.9 mol.%) of formual (III) and (D) other monomers (0-20% mol.%). The sum of monomers (A), (B), (C), and (D) is 100 mol.%. The dispersant is a water-soluble copolymer and/or salt with an ave. mol. wt. of 1000-500,000 (prefd. 5000-300,000). where R1, R4, R6, R7 are each H or CH3, (R6, R7 can be -COOY but not at the same time); R2 is a 2-4C alkylene gp.; R3 is a 1-30C alkyl, alkenyl, aryl, etc. gp.; R5 is a 1-4C alkylene gp.; R8 is H, CH3, -COOY or -CH2COOY; X, Y are each H, alkali metal, alkaline earth metal, ammonium, amine.