Multi-stage method for washing-out ammonia from gas, particularl

Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component

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210712, 210750, C01C 300, C02F 312, B01D 338

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045592101

ABSTRACT:
In a multi-stage washing process for the removal of ammonia from coking oven gas, a portion of waste water, produced during the separation of ammonia from ammonia-containing water in an ammonia still, is supplied to an ammonia water at the final stage of washing, at which ammonia is washed out from gas with ammonia-free water.

REFERENCES:
patent: 3540189 (1970-11-01), Siewers et al.
patent: 4311597 (1982-01-01), Bhattacharyya

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