Process for separating amino acids and aminosulponic acids through adsorption on zeolites

US5731459A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Stefan Stockhammer · Alzenau, DE
• Wiltrud Schafer-Treffenfeldt · Obertshausen, DE
• Gunter Knaup · Bruchköbel, DE
• Karlheinz Drauz · Alzenau, DE
• Elfriede Sextl · Geiselbach, DE

Key dates

• Filing date: Aug 28, 1996
• Grant date: Mar 24, 1998
• Expiry date: Aug 28, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C227/40
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for removing amino acids and/or aminosulphonic acids from preferably aqueous solutions which contain these as impurities by adsorbing the amino acids on zeolites. Solutions to which the process according to the invention can be applied are produced, for example, from the industrial synthesis of oligopeptides in which the amino acids serving as starting materials are always present in solution, sometimes to a not inconsiderable residual concentration, together with the desired end product.