Production of low sulfur content lime from limestone

Details Production of low sulfur content lime from limestone Production of low sulfur content lime from limestone

1993-10-07

1995-01-10

Langel, Wayne

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

423177, 423637, C01F 1106

Patent

active

053805054

ABSTRACT:
A process for calcining limestone to lime to produce a low sulfur content lime product, while combusting a sulfur-containing carbonaceous fuel in a rotary kiln to provide heat for the calcination. A finely divided lime hydrate is added to the rotary kiln adjacent the combustion flame, such that the lime hydrate particles react with sulfur-containing contaminants in the hot combustion gases to form lime hydrate-sulfur reaction products, such as calcium sulfate, which are retained in the gaseous flow and removed from the rotary kiln.

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patent: 4626418 (1986-12-01), College et al.

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