Abstract:

Ammonia recovery process is described in this paper, i.e. the ammonia vapor used to be burnt out in A.S. process will be recovered for emission desulfurization in sinter plant, with liquefied ammonia saved by 4 500t annually and with direct economic benefit up to 17.1 million RMB; the concentrated ammonia liquor is delivered to saturator for producing ammonia sulfate fertilizer, with production of 18 250t each year and with economic benefit up to 25.55 million RMB.