Process for producing free-flowing particles comprising or consisting of an n-guanylamino acid

2:

• The process according to claim 1, further comprising:
• d) separating the precipitated or crystallized particles comprising N-guanylamino acid from the solution or suspension obtained in c), and
• e) drying the particles separated in d).

3:

• The process according to claim 1, wherein the solvent of the solution or suspension provided in a) comprises water, an organic solvent, or a mixture thereof.

4:

• The process according to claim 1, wherein the pH value set in b) and/or c) is held for 30 minutes or less.

5:

• The process according to claim 1, wherein the N-guanylamino acid is guanidinoacetic acid.

6:

• The process according to claim 5, wherein the pH of the solution or suspension obtained in b) is lower than a pKa of guanidinoacetic acid.

7:

• The process according to claim 6, wherein the pH of the solution or suspension obtained in b) is lower than 2.9.

8:

• The process according to claim 5, wherein the pH of the solution or suspension obtained in c) is larger than a pKa of guanidinoacetic acid and lower than a pKb of guanidinoacetic acid.

9:

• The process according to claim 8, wherein the pH of the solution or suspension obtained in c) is larger than 2.9 and lower than the pKb of guanidinoacetic acid.

10:

• The process according to claim 8, wherein the pH of the solution or suspension obtained in c) is larger than 4 and lower than 10.91.

11:

• The process according to claim 8, wherein the pH of the solution or suspension obtained in c) is from 5 to lower than 10.91.

12:

• The process according to claim 5, wherein the crystallization of guanidinoacetic acid is initiated at a pH of at least 5.

13:

• The process according to claim 1, wherein the N-guanylamino acid comprising the solution or suspension provided in a) or the N-guanylamino acid contained in the solution or suspension results from a chemical reaction of an amino acid with cyanamide.

14:

• The process according to claim 1, wherein the N-guanylamino acid comprising the solution or suspension provided in a) or the N-guanylamino acid contained in the solution or suspension results from a fermentative production of the N-guanylamino acid.