Cupric acetate → Cupric acetate monohydrate

Temperature

70 °C

A CuCHA powder catalyst was prepared by ion-exchange with copper acetate. A 0.40 M of copper (II) acetate monohydrate solution was prepared by dissolving 89.8 g of the copper salt in 1.125 L of deionized water at 70° C. 300 g of NH4+-form CHA was then added to this solution. An ion-exchange reaction between the NH4+-form CHA and the copper ions was carried out by agitating the slurry at 70° C. for 1 hour. The pH was between 4.8 and 4.5 during the reaction. The resulting mixture was then filtered, washed until the filtrate had a conductivity of <200 μScm−1, which indicated that substantially no soluble or free copper remained in the sample, and the washed sample was dried at 90° C. The obtained CuCHA catalyst comprised CuO at 3.06% by weight and Na2O at 140 ppm.

1. customThe pH was between 4.8 and 4.5 during the reaction
2. filtrationThe resulting mixture was then filtered
3. washwashed until the filtrate
4. customthe washed sample was dried at 90° C

ORD record

ord-05f8ee60b3244b69a56cce40963c894b

Source dataset

uspto-grants-2015_10

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09162218B2