Patents by Inventor Anton Niks

Anton Niks 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).

  • Ammonium nitrate containing fertilizer bodies having improved properties during storage and transportation
    Patent number: 4220463
    Abstract: Ammonium nitrate containing fertilizer bodies such as crystals, pellets, prills, and the like, are provided individually throughout their entire surface with a uniform and substantially continuous coating of C.sub.12 -C.sub.18 alkylamine(s) in the solid state, and with a thin layer of mineral oil over said coating.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: September 2, 1980
    Inventors: Willy H. P. Van Hijfte, Rafael A. J. Goethals, Anton Niks, Gerardus F. vander Sijpt
  • Process for urea granulation
    Patent number: 4219589
    Abstract: Urea granules are prepared by spraying an aqueous urea solution having a urea concentration of 70-99.9% by weight on to fluidized urea nuclei in the form of droplets having a mean drop diameter of 20-120 .mu.m at a temperature at which the water is evaporated from the solution sprayed on to the nuclei and urea crystallizes on the nuclei to form granules having a desired size.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: August 26, 1980
    Assignee: Compagnie Neerlandaise de l'Azote
    Inventors: Anton Niks, Willy H. P. Van Hijfte, Rafael A. J. Goethals
  • Ammonium nitrate containing fertilizer pellets and a process of making same having a coating of C.sub.12 -C.sub.18 alkyl amine(s) and an overcoat of mineral oil
    Patent number: 4150965
    Abstract: Ammonium nitrate containing fertilizer pellets provided individually throughout their entire surface with a uniform and substantially closed coating of C.sub.12 -C.sub.18 alkylamine(s) in the solid state, and with a thin layer of mineral oil over said coating.
    Type: Grant
    Filed: April 20, 1978
    Date of Patent: April 24, 1979
    Assignee: Compagnie Neerlandaise de l'Azote (Societe Anonyme)
    Inventors: Willy H. P. Van Hijfte, Rafael A. J. Goethals, Anton Niks, Gerardus F. VAN DER Sijpt
  • Preparation of ureaform
    Patent number: 4123570
    Abstract: Preparation of ureaform granules. A concentrated aqueous solution of a urea-formaldehyde condensate is mixed with a catalyst which at normal temperature effects virtually no acid condensation, but a elevated temperature releases sufficient strong acid to effect the acid condensation in a few seconds. The mixture of solution and catalyst is sprayed over solid ureaform particles maintained in spaced interrelationship and at such a temperature that the catalyst is decomposed and effects acid condensation, whereby the sprayed particles are coated with a layer of ureaform and dried.
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: October 31, 1978
    Assignee: Compagnie Neerlandaise de l'Azote (Societe Anonyme)
    Inventors: Willy H. P. Van Hijfte, Luc A. Vanmarcke, Anton Niks