Title: Process and plant to extract and concentrate tannins from wood and from other natural products
Application Number: 98810729 Application Date: 1998.10.27
Publication Number: 1278189 Publication Date: 2000.12.27
Approval Pub. Date: 2004.11.24 Granted Pub. Date: 2004.11.24
International Classifi-cation: B01D11/02;B01D61/02;B01D61/14;B01D63/10;B01D71/68;C07G17/00
Applicant(s) Name: Proras S. R. L. Address:
Inventor(s) Name: C. Mustacchi;G. Matturro;P.Danesi
Attorney & Agent: long chuangong
Abstract:
    Process and a plant to extract and concentrate tannins from wood and from other solid natural products containing it characterized in that the solid products are subjected to an extraction ( 1 ) by percolation with water and/or steam and the thus obtained tannin solution is subjected to nanofiltration ( 5 ).
Time: 4