Patents by Inventor Lazar D. Pertsov

Lazar D. Pertsov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4261905
    Abstract: The method for preparing furfuryl alcohol comprises hydrogenation of furfural in the presence of a mixture of a copper-chromite catalyst promoted with oxides of alkali-earth metals, and ceramic material. This mixture is disposed in four beds at a ratio between the catalyst and the ceramic material of 1:2 in the first bed, 1:1 in the second bed, 2:1 in the third bed and 2.5:1 in the fourth bed downstream of the flow of the mixture of furfural and hydrogen. The hydrogenation process is conducted at an elevation of temperature from 50.degree. to 140.degree. C. under a pressure of from 60 to 65 atm, followed by the introduction of monoethanolamine or hydrazine hydrate into the resulting catalyzate.
    Type: Grant
    Filed: October 30, 1979
    Date of Patent: April 14, 1981
    Inventors: Elizaveta A. Preobrazhenskaya, Juldash Mamatov, Ivan P. Polyakov, Lidia G. Grankina, Jormukhamat G. Abduganiev, Ildgam A. Bekbulatov, Alexei M. Degovtsov, Larisa J. Chivanova, Lazar D. Pertsov, Bassheva B. Berezina