Method of producing solid moldings from a by-product of wet lime

Details Method of producing solid moldings from a by-product of wet lime Method of producing solid moldings from a by-product of wet lime

1992-11-20

1995-03-07

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Recycling of reclaimed or purified process material

Of gaseous process material

264 82, 264234, 264333, B28B 100

Patent

active

053955617

ABSTRACT:
A method of producing solid molding products from a slurry which has undergone absorption in wet-limestone gypsum desulfurization of flue gas includes the steps of concentrating the gypsum-containing absorption slurry, mixing and kneading the solid concentrated slurry with flyash and quicklime or slaked lime, molding the mixture into a given shape using a mold and then curing a resulting molding product in a reaction chamber wherein a part of desulfurized gas is passed. The method also includes solidifying a molded product by drying with water-saturated hot air produced with heat recovered from the flue gas and with water added into a heat recovery process.

REFERENCES:
patent: 4127628 (1978-11-01), Uchida et al.
patent: 4219515 (1980-08-01), Helser et al.
patent: 4219519 (1980-08-01), Goksel
patent: 4250134 (1981-02-01), Minnick
patent: 4342732 (1982-08-01), Smith
patent: 4397801 (1983-08-01), Minnick
patent: 4477397 (1984-10-01), Helser
patent: 4925614 (1990-05-01), Gebhard
patent: 5211750 (1993-05-01), Smith et al.

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