Pumping of aqueous slurries

To improve the pumpability of aqueous slurries of mineral dusts, e.g. coal tailings, and cement, there is added a dispersing agent comprising a copolymer of a hydrophilic material and a relatively less hydrophilic material. A preferred dispersing agent is a water-soluble copolymer of polyacrylic aci...

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Bibliographische Detailangaben
Hauptverfasser:	HARDMAN, MICHAEL P, LAMMIMAN, STEVEN A
Format:	Patent
Sprache:	eng
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY CONVEYING FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR HANDLING THIN OR FILAMENTARY MATERIAL LIQUEFIED PETROLEUM GAS LUBRICANTS METALLURGY NATURAL GAS PACKING PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PNEUMATIC TUBE CONVEYORS SHOP CONVEYOR SYSTEMS STORING SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING
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Beschreibung
Zusammenfassung:	To improve the pumpability of aqueous slurries of mineral dusts, e.g. coal tailings, and cement, there is added a dispersing agent comprising a copolymer of a hydrophilic material and a relatively less hydrophilic material. A preferred dispersing agent is a water-soluble copolymer of polyacrylic acid and polymethacrylic acid.