PROCESS FOR PRODUCING CRYSTALLINE DTPMP

• Main Authors: KREHER, Thomas, LIEBSCH, Stephan, RUDOLPH, Carsten
• Format: Patent
• Language: English; French; German
• Published: 30.01.2019
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

The present invention relates to crystallizates of the pure aminoalkylenephosphonic acid DTPMP in three crystal polymorphs and to a process for obtaining solid crystalline DTPMP by a preferably one-stage crystallization from an aqueous product mixture comprising DTPMP, wherein the process comprises...