Briquetting of lime based products with carbon based additives

Details Briquetting of lime based products with carbon based additives Briquetting of lime based products with carbon based additives

2006-09-12

2006-09-12

Theisen, Mary Lynn (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Reexamination Certificate

active

07105114

ABSTRACT:
A method is shown for briquetting quicklime fines. A source of quicklime or dolomitic quicklime fines is combined with a binder in the form of a pseudo-plastic carbon containing material which will deform under briquetting conditions of elevated temperature and pressure and flow and which will also return to a solid phase and bind the quicklime fines upon cooling. An external force is applied to the mixture of fines and binder, as with a briquetting machine, sufficient to form the mixture into a briquette having requisite strength and durability characteristics. Suitable classes of carbon containing materials include Gilsonite®, a solid coal tar pitch and recycled plastics such as polyethylene and polypropylene.

REFERENCES:
patent: 3941582 (1976-03-01), Baum
patent: 4659374 (1987-04-01), Alanko et al.
patent: 5186742 (1993-02-01), Hoffman et al.
patent: 5413746 (1995-05-01), Birjukov

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