Ammonia → HCID 86752830, compound

Participants

Reaction Conditions

Reaction Steps

Using pump pressure, a solution of 100 kg of potassium hydrogen carbonate in aqueous solution and 41 kg of 5-(2-methylmercaptoethyl)-hydantoin in 400 l of water is fed hourly into a continuously operating pressurised column 8 made of special steel (compare FIG. 2) operated with steam. The reaction mixture is heated to 180° C. and has an average residence time of about 15 minutes at about 8 bar. Ammonia and carbon dioxide liberated is drawn off at the top of the reactor column by means of a pressure-maintaining valve. The reaction solution is depressurised at the bottom of the pressurised reactor and cooled with the heat exchanger 9. A quantity of 41.9 kg per hour of potassium methioninate in solution is obtained (94.5% of the theoretical).

Provenance & Evidence