Basf Se Corporation

Yingzhong Shen

Lars Wittenbecher

Heinrich Lang

Copper (I) formate complexes of general formula LCu(HCOO).x COOH are decomposed in order to separate metallic copper, wherein x is a number from 0 to 10, n amounts to, 2, 3 or 4 and the n ligands L represent, independent of one another, one of the following ligands: a phosphane of formula RRRP; a phosphite of formula (RO)(RO)(RO)P; an isocyanide of formula R&#x2014;NC; an alkene of general formula RRC&#x2550;CRR; or an alkyne of general formula RC&#x2550;CR; wherein R, R, Rand Rrepresent, independent of one another, hydrogen, a linear or branched, optionally partly or fully fluorinated alkyl, aminoalkyl, alkyoxialkyl, hydroxialkyl, phosphinoalkyl or aryl radical having up to 20 carbon atoms, with the exception of triphenylphosphino-copper (I) formate and 1,1,1-tris(diphenylphosphinomethyl)ethane-copper (I) formate.

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Nanjing, China

Yingzhong Shen