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US 8,133,350 B2Granted
Deinking a cellulosic substrate using magnesium silicate
AssigneeNalco Company
InventorsPrasad Y Duggirala, Michael J Murcia
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Abstract
A composition and method for deinking is disclosed. The composition and method contain an activated magnesium silicate or a magnesium silicate.
Claims2
A method of removing ink from a cellulosic containing substance comprising:
- (a) adding to the substance a composition comprising:
- (1) magnesium silicate, (2) water, (3) xanthan gum, (4) tall oil fatty acid;
- and (5) sodium lauryl sulfate;
- (b) optionally excluding adding caustic soda to the cellulosic containing substance;
- and
- (c) optionally excluding adding hydrogen peroxide to the cellulosic containing substance.
3 more elements
Dependencies are inferred from the claim text.