Method for the manufacture of Fe(II)P/Fe(II)MetP compounds

US10793437B2 · kind B2 · utility

Assignee

• Chemische Fabrik Budenheim KG · DE

Inventors

• Joachim Adolf · Mainz, DE
• Dominik Braun · Langen, DE
• Gerhard Eich · Ingelheim am Rhein, DE
• David A. Engers · West Lafayette, US
• Bastian Ewald · Ludwigshafen, DE
• Christian LITTERSCHEID · Ober-Olm, DE
• Rüdiger Wissemborski · Gau-Algesheim, DE

Key dates

• Filing date: Mar 26, 2018
• Grant date: Oct 6, 2020
• Expiry date: Mar 26, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2004/61
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for the manufacture of crystal water-free iron(II) orthophosphate of the general formula Fe3(PO4)2 or crystal water-free iron(II) metal orthophosphate, iron(II) metal pyrophosphate or iron(II) metal metaphosphate of the general formula FeaMetb(POc)d, where a is a number from 1 to 5, b is a number from >0 to 5, c is a number from 2.5 to 5, d is a number from 0.5 to 3 and Met represents one or more metals selected from the group consisting of K, Rb, Cs, Mg, Ca, Sr, Ba, the transition metals (d block), in particular Sc, Y, La, Ti, Zr, Hf, Nb, Ta, Cr, Mo, W, Mn, Cu, Zn and the metals and semimetals of the third, fourth and fifth main groups, in particular B, Al, Ga, In, Si, Sn, Sb, Bi and the lanthanoids.