Patents by Inventor Janos Forstner

Janos Forstner 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).

  • Catalyst for hydrocracking and method for catalytic hydrodewaxing of gas oil
    Patent number: 6054040
    Abstract: The invention relates to a new catalyst applicable in hydrocracking of hydrocarbons. The catalyst contains as catalytically active components: a) a ZSM-5 zeolite wherein 10-100% of the exchangeable hydrogen ions have been replaced by nickel ions, and b) 0.3-3 parts by weight of magadiite in hydrogen form for 1 part by weight of component (a). The catalyst can be applied in hydrodewaxing of gas oil, and enables the production with an extremely low pour point.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: April 25, 2000
    Assignee: MOL Magyar Olaj- es Gazipari Reszvenytarsasag
    Inventors: Maria Balai, Hermann Beyer, Gabriella Borbely, Istvan Czagler, Pal Feher, Janos Forstner, Gabor Georgiades, Janos Gergely, Jozsef Horvath, Bela Jover, Laszlo Kantor, Imre Kovacs, Istvan Lencse, Jozsef Perger, Jozsef Petro, Erno Ratosi, Gabriella Pecsvari Szalmasne, Laszlo Szirmai, Jozsef Szollosi, Laszlo Zsida
  • Process for the preparation of catalysts and for cracking mineral oil fractions
    Patent number: 5807474
    Abstract: The invention relates to a process for the preparation of catalysts or catalyst additives by kneading and/or grinding, spray-drying and heat-treating a suspension containing a catalytically active component as well as aluminum hydroxide and/or one or more aluminum hydroxy compound(s) and other binding agent(s) and optionally kaolin(ite), which comprises using one or more aluminum-containing silicic acid modification(s) of formula (I),H.sub.4+y-z ?(SiO.sub.4/2).sub.x-y (AlO.sub.4/2).sub.y (SiO.sub.3/2 O).sub.4-z (AlO.sub.3/2).sub.z !, (I)wherein y is less than 1; z is less than 1; and x is 0, 4, 10, or 16 to 18, instead of the kaolin(ite) or a part thereof to be used as filling material. The process and the catalysts or catalyst additives render it possible to increase the butene fraction of cracked products.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: September 15, 1998
    Assignee: MOL Magyar Olaj-es Gazipari Reszvenytarsasag
    Inventors: Maria Balai, Hermann Beyer, Istvan Czagler, Arpad Csoka, Pal Feher, Janos Forstner, Laszlo Galambos, Laszlo Kantor, Antal Katona, Maria Lenkei, Gabriella Pal nee Borbely, Tamas Sulyok, Laszlo Szirmai, Eszter Tatrai, Olga Terenyi nee Gavrikova, Gabor Tolvaj
  • Process for manufacturing methylene-bis (dibutyl-dithiocarbamate) with ASTM colour less than 2
    Patent number: 5744629
    Abstract: The invention relates to improved manufacture of methylene bis-(dibutyl-dithiocarbamate) with ASTM coulour less than 2, by reacting aqueous solutions of dibutyl amine and sodium hydroxide with carbon disulfide, treating the obtained reaction product with methylene dichloride, followed by vacuum stripping, phase separation and filtration of the precipitated sodium chloride. According to the invention, during reaction with carbon disulfide the temperature of the mixture is kept at or below 15.degree. C. and the vacuum stripping is performed in two steps, first between 45.degree. C. and 100.degree. C. and at a pressure of 5-50 kPa, then phase separation is carried out at a temperature between 35.degree. C. and 50.degree. C., followed by stripping the separated organic phase in vacuum also at a temperature between 45.degree. C. and 100.degree. C. and at a pressure of 5-50 kPa.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: April 28, 1998
    Assignee: MOL Magyar Olaj- es Gazipari Rt.
    Inventors: Bela Jover, Janos Forstner, Jozsef Petro, Szabolcs Szoboszlay, Imre Fekete, Karoly Csergo, Gyula Sztreharszki, Gyula Raksi, Janos Kiss, Ferenc Miko, Jeno Baladincz, Jozsef Toth