Patents by Inventor Boris Alexandrovich Lipkind

Boris Alexandrovich Lipkind 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).

  • Process for the preparation of synthetic zeolites
    Patent number: 3979335
    Abstract: A process for the preparation of synthetic zeolites comprising mixing zeolite powder of a particle size not exceeding 5 mcm with a natural binder of a particle size of 250-500 A. The resulting mixture is wetted with water and pelletized, the pellets thus obtained being calcined at 600.degree.-700.degree.C.
    Type: Grant
    Filed: December 27, 1974
    Date of Patent: September 7, 1976
    Inventors: Georgy Anatolievich Golovko, Boris Alexandrovich Lipkind, Albina Timofeevna Slepneva, Alexandr Semenovich Leontiev, Vladimir Mikhailovich Mazin, Elena Nikolaevna Berezovskaya, Valentin Alexandrovich Burylov, Alexandr Mikhailovich Zubkov, Olga Alexeevna Konakova, Alexandr Ivanovich Judaev, Valentin Nikolaevich Pavlychev, Jury Yakovlevich Ignatov, Evgeny Alexandrovich Kharitonov
  • Process for preparation of wide-pore adsorbent for use in chromatography
    Patent number: 3935299
    Abstract: A process for preparing a wide-pore adsorbent adapted for use in chromatography, comprising mixing fine disperse non-porous silica having a specific surface area S of 35 to 380 m.sup.2 /g with water followed by drying the aqueous suspension at a temperature within the range of 100.degree. to 450.degree.C to give a silica xerogel and particulating thereof. The xerogel, prior to the particulation or thereafter, is subjected to the hydrothermal treatment in an autoclave at a temperature within the range of from 100.degree. to 380.degree.C and under a pressure of 1 to 300 atm., followed by drying at a temperature of 100.degree. to 300.degree.C.The above-described process enables the preparation of an adsorbent with larger pores as compared to adsorbents prepared from fine disperse non-porous silica and produced by conventional processes. The process according to the present invention makes it possible to produce an adsorbent having a specific surface area within the range of from 2 to 280 m.sup.
    Type: Grant
    Filed: January 31, 1975
    Date of Patent: January 27, 1976
    Inventors: Andrei Vladimirovich Kiselev, Galina Lvovna Kustova, Boris Alexandrovich Lipkind, Jury Stepanovich Nikitin