The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2014
Filed:
Mar. 06, 2008
Torbjörn Van Der Meulen, Örnsköldsvik, SE;
Gunnar Fransson, Bureå, SE;
Lars Sundlöf, Skellefteå, SE;
Jan Lindstedt, Örnsköldsvik, SE;
Torbjörn Van Der Meulen, Örnsköldsvik, SE;
Gunnar Fransson, Bureå, SE;
Lars Sundlöf, Skellefteå, SE;
Jan Lindstedt, Örnsköldsvik, SE;
Sekab E-Technology AB, Ornskoldsvik, SE;
Abstract
The present invention relates to the use of a comparatively cheap material for the containment of at least a strongly acidic mineral acid solution highly diluted with water, by means of which saccharides are extracted from lignocellulose material by hydrolysis at a temperature of 175-240° C. and a pressure of 6-34 bar (0.6-14 MPa) as well as a time of 1-60 minutes and is characterized in that the material comprises, in addition to iron in an amount greater than any other individual substance and usually at least 50% by weight, at least chromium in an amount of 10.5-30% by weight, nickel in an amount of 2.5-29% by weight, and molybdenum in an amount of 0-7% by weight. The invention also relates to an apparatus.