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US 2022/0023849 A1Published application
Aqueous suspension comprising a zeolitic material and a zirconium chelate complex
AssigneeBASF SE
InventorsMaximilian HEMGESBERG, Meik RANFT, Edith SCHNEIDER, Marko BUCHHOLZ, Maik SCHLESINGER, Denis SCHWALL, Yi LIU
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Abstract
An aqueous suspension comprising water, a zeolitic material and one or more of copper and iron, and a chelate complex comprising a zirconium ion and a bidentate organic ligand bonded to said zirconium ion via zirconium oxygen bonds from two oxygen atoms comprised in said ligand, said chelate complex being dissolved in the water.
Claims18
An aqueous suspension comprising:
- (i) water;
- (ii) a zeolitic material and one or more ions of copper and iron, wherein the copper and iron is either comprised in the zeolitic material, in a source of copper and iron, or in the zeolitic material and in a source of copper and iron;
- and
- (iii) an aqueous chelate complex solution comprising a zirconium ion and a bidentate organic ligand bonded to the zirconium ion via zirconium oxygen bonds from two oxygen atoms comprised in the ligand.
1 more element
A process for preparing an aqueous suspension, wherein the process comprises:
- (a) mixing water and a zirconium salt;
- (b) adding a bidentate organic ligand to the mixture obtained from (a), and obtaining an aqueous chelate complex solution comprising a zirconium ion and the bidentate organic ligand bonded to the zirconium ion via zirconium oxygen bonds from two oxygen atoms comprised in the ligand;
- and
- (c) adding a zeolitic material and one or more ions of copper and iron to the aqueous solution obtained from (b), and obtaining an aqueous suspension, wherein the copper and iron is either comprised in the zeolitic material, or in a source of copper and iron, or in the zeolitic material and in a source of copper and iron.
1 more element
(canceled)
Dependencies are inferred from the claim text.