US 12,258,541 B2
Crumbly phase composition of methylglycine N,N diacetic acid
Elwin Schomaker, Deventer (NL); Paulus Johannes Cornelis Van Haeren, Deventer (NL); Martin Heus, Deventer (NL); Marco Ypma, Deventer (NL); Stijn Richard Gerard Oudenhoven, Deventer (NL); and Roy Gérard Doppen, Deventer (NL)
Assigned to NOURYON CHEMICALS INTERNATIONAL B.V., Arnhem (NL)
Appl. No. 17/415,786
Filed by NOURYON CHEMICALS INTERNATIONAL B.V., Arnhem (NL)
PCT Filed Dec. 17, 2019, PCT No. PCT/EP2019/085755
§ 371(c)(1), (2) Date Jun. 18, 2021,
PCT Pub. No. WO2020/127349, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 18215420 (EP), filed on Dec. 21, 2018.
Prior Publication US 2022/0073842 A1, Mar. 10, 2022
Int. Cl. C11D 3/26 (2006.01); C07C 229/16 (2006.01); C11D 3/30 (2006.01); C11D 3/33 (2006.01); C11D 7/32 (2006.01); C11D 11/02 (2006.01); C11D 17/00 (2006.01); C11D 17/06 (2006.01)
CPC C11D 3/33 (2013.01) [C07C 229/16 (2013.01); C11D 3/30 (2013.01); C11D 7/3245 (2013.01); C11D 11/02 (2013.01); C11D 17/06 (2013.01); C11D 17/065 (2013.01); C07B 2200/13 (2013.01); C11D 2111/14 (2024.01)] 18 Claims
 
1. A crumbly phase composition containing on total weight of the composition
(i) 70-87 wt % of organic compounds and salts thereof containing 85 to 100 wt % of MGDA-Na3 on the basis of total organic compounds and salts thereof, wherein at least 60 wt % of the MGDA-Na3 is crystalline wherein the MGDA-Na3 that is crystalline is at least 75% of crystal type I on the basis of total crystalline MGDA-Na3 content, further wherein said crystal type I is a dihydrate crystal, and
(ii) 20-30 wt % of water.