Selenium Or Tellurium Or Compound Containing Same Patents (Class 502/215)
  • Palladium (II) bis(hexafluoroacetylacetonate), adducts derived therefrom and uses thereof
    Patent number: 4410569
    Abstract: Preparation of palladium (II) bis(hexafluoracetylacetonate) and adducts derived therefrom are disclosed, said adducts having the formulaPd(F.sub.6 ACAC).sub.2.L.sub.nwherein L is a Lewis base selected from certain classes, and n is an integer from 1 to 4. These compounds are useful in preparing catalytic and primer surfaces of elemental palladium.
    Type: Grant
    Filed: February 23, 1982
    Date of Patent: October 18, 1983
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Allen R. Siedle
  • Catalyst reactivation
    Patent number: 4409122
    Abstract: A process for the reactivation of spent tellurium-containing oxidic catalysts (suitable for oxidation, ammoxidation and/or oxidative dehydrogenation of olefines), wherein a solid particulate tellurium compound especially tellurium oxide compound, is mixed with the spent catalyst to raise the tellurium content thereof to a value of between 90% and 500% of the original catalyst content.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: October 11, 1983
    Assignee: Stamicarbon, B.V.
    Inventors: Engelina C. Kleuskens, Johannes G. H. Maessen, Theodorus J. van de Mond