Bleach catalyst compounds, method for the production thereof and use thereof

US8889611B2 · kind B2 · utility

Assignee

• CLARIANT INTERNATIONAL LTD · CH

Inventors

• Gerd Reinhardt · Kelkheim, DE
• Michael Best · Dursley, GB

Key dates

• Filing date: Nov 30, 2010
• Grant date: Nov 18, 2014
• Expiry date: Apr 20, 2031

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21C9/163
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to compounds in solid form, containing a) one or more manganese complex compounds of the general formula (1), where M is independently selected from manganese in the III or IV oxidation state, X is independently a co-ordinating or bridging species selected from H2O, O22−, O2−, O2−, OH−, HO2−, SH−, S2−, SO, Cl−, N3−, SCN−, N3−, RCOO−, NH2− and NR3, where R is a radical selected from H, alkyl and aryl, L are independently organic ligands, each of which contains at least two nitrogen atoms co-ordinated on manganese, z is an integer from −4 to +4, Y is a monovalent or multivalent counter-ion selected from chloride, sulphate, hydrogen sulphate, nitrate and acetate, which leads to charge neutrality of the complex, and q is an integer from 1 to 4, and b) one or more salts of the general formula R′—C6H4—SO3Me, where R′ is CH3 or C2H5 and denotes Me, Na, K, Ca or Mg, characterized in that the molar ratio of the manganese complex compound of the general formula (1) to salt of the general formula R′—C6H4—SO3Me is 1:0.5 to 1:5. The invention also describes a method for producing the compounds and to the use thereof as oxidation catalysts or bleach catalysts, in particular…