Aqueous slurries of carbonaceous materials

Patent · Tue Mar 13 00:00:00 EST 1984

OSTI ID:6874510

Schick, M J; Knitter, K A

Aqueous carbonaceous slurries having reduced viscosity, a stabilized network of carbonaceous material in water and improved pumpability are obtained by having present a salt of naphthalenesulfonic acid formaldehyde condensate and at least one water soluble polymer selected from the group consisting of sodium alginate, guar gum, locust bean gum, carboxymethylhydroxypropyl guar gum, hydroxypropyl guar gum and guarpak guar gum. For example, a mixture of 96.8% by weight of ammonium naphthalenesulfonic acid formaldehyde condensate and 3.2% by weight of sodium alginate can be added to an aqueous coal slurry in an amount of 0.31% by weight of the slurry.

• Assignee: Diamond Shamrock Chemicals Co.
• Patent Number(s): US 4436528
• OSTI ID: 6874510
• Resource Relation: Patent File Date: Filed date 17 Sep 1982; Other Information: PAT-APPL-419618
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
FUEL SLURRIES
STABILIZATION
VISCOSITY
CATALYTIC EFFECTS
COAL
COAL FINES
MIXTURES
POLYMERS
PUMPING
SODIUM COMPOUNDS
SULFONIC ACIDS
SURFACTANTS
WATER
ALKALI METAL COMPOUNDS
CARBONACEOUS MATERIALS
DISPERSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
MATERIALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
SLURRIES
SUSPENSIONS
013000* - Coal
Lignite
& Peat- Transport
Handling
& Storage
014000 - Coal
Lignite
& Peat- Combustion