Recovery of Ammonia in the Dipeptide Manufacturing Processes

Autor:	and Takahiro Sano, Satoshi Kato, Toru Sugaya
Rok vydání:	2001
Předmět:	Ammonia chemistry.chemical_compound Dipeptide Biochemistry chemistry Manufacturing process Yield (chemistry) Production cost Scientific method Organic Chemistry Physical and Theoretical Chemistry Pulp and paper industry Cost savings
Zdroj:	Organic Process Research & Development. 5:132-135
ISSN:	1520-586X 1083-6160
Popis:	An example of an improvement in recovering ammonia in a dipeptide manufacturing process is described. The synthetic method, which makes use of the ammonolysis reaction, has been studied and found to produce dipeptides of satisfactory quality in high yield on a large scale. However, the treatment of unreacted ammonia in the ammonolysis reaction caused a reduction in the productivity and increased the production cost during actual manufacture. Therefore, a method to recover the unreacted ammonia has been investigated through simulations and trial runs using model solutions. Consequently, the modified process provided an improvement in the productivity and cost savings. In addition, the recovered ammonia could possibly be used for recycling. It was verified in a lab experiment that the reused ammonia did not lower the quality of the dipeptide.
Databáze:	OpenAIRE
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