Patents by Inventor Esko Kiviranta

Esko Kiviranta 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).

  • Method of treating tall oil pitch
    Patent number: 8865922
    Abstract: A method of treating tall oil pitch, which comprises sterol esters of fatty acids. According to the present invention, the esters of sterols and fatty acids are broken down, in which case especially formic acid esters or acetic acid esters of sterols are formed instead. The free fatty acids and sterol esters generated are distilled or separated in another way. Use of the present invention increases the yield of fatty acids and also facilitates the separation of sterols from tall oil pitch.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: October 21, 2014
    Assignee: Forchem Oy
    Inventors: Esko Kiviranta, Juhani Saviainen, Mikko Rintola
  • METHOD OF TREATING TALL OIL PITCH
    Publication number: 20130041167
    Abstract: A method of treating tall oil pitch, which comprises sterol esters of fatty acids. According to the present invention, the esters of sterols and fatty acids are broken down, in which case especially formic acid esters or acetic acid esters of sterols are formed instead. The free fatty acids and sterol esters generated are distilled or separated in another way. Use of the present invention increases the yield of fatty acids and also facilitates the separation of sterols from tall oil pitch.
    Type: Application
    Filed: March 28, 2011
    Publication date: February 14, 2013
    Applicant: FORCHEM OY
    Inventors: Esko Kiviranta, Juhani Saviainen, Mikko Rintola
  • Method of processing tall oil
    Patent number: 8338633
    Abstract: A method of processing wood oil which is generated during pulping. In the method, low molecular weight carboxyl acid that is approximately 0.5-5.0% of the wood oil quantity (weight) is added to that wood oil early in its separation stage, in order to esterify the alcohol groups present in the wood oil, by the said acid. The protective esterification according to the present invention prevents the esterification of the alcohol groups by the fatty acids naturally present in the wood oil.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: December 25, 2012
    Assignee: Forchem Oy
    Inventor: Esko Kiviranta
  • METHOD OF PROCESSING TALL OIL
    Publication number: 20100152478
    Abstract: A method of processing wood oil which is generated during pulping. In the method, low molecular weight carboxyl acid that is approximately 0.5-5.0% of the wood oil quantity (weight) is added to that wood oil early in its separation stage, in order to esterify the alcohol groups present in the wood oil, by the said acid. The protective esterification according to the present invention prevents the esterification of the alcohol groups by the fatty acids naturally present in the wood oil.
    Type: Application
    Filed: May 15, 2008
    Publication date: June 17, 2010
    Applicant: FORCHEM OY
    Inventor: Esko Kiviranta