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 …

Legal parties

Inventors (applicants): Jan Lindstedt, Gunnar Fransson, Torbjörn Van Der Meulen, Lars Sundlöf
Assignees (initial): Sekab E-Technology AB (Ornskoldsvik, SE)
Agents: Birch, Stewart, Kolasch & Birch, LLP. (attorney)

The application was examined by Sheng H Davis, Patricia L Hailey (USPTO dept. 1732)


  • 1. A method of industrial extraction of saccharides from a lignocellulose material in a plant …
  • 2. The method of claim 1 , wherein the stainless steel is austenitic stainless steel. …
  • 3. The method of claim 1 , wherein the at least one part includes at least …

International priority data

SE: 0700578 / Mar. 8, 2007 (national)

Cited documents


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Technical Field

The present invention bears upon a usage of a comparatively cheap material in an apparatus that is used in extraction of saccharides from lignocellulose material by means of hydrolysis. …

Best Embodiment

What is mentioned under this heading is in this case limited to very detailed tests, which are accounted for in the example …

Example 1

Ten different materials were tested, five were different types of stainless steels and five were nickel-based alloys expected to be of a high quality from a corrosion point of view. …

More details about Apparatus for Extraction of Saccharides From Lignocellulose Material by Means of Hydrolysis and Use of a Certain Material in the Apparatus

Miscellaneous patent data

The term of the grant was extended by 1045 days, the grant number is 08728243 (publication number), the known agent - Birch, Stewart, Kolasch & Birch, LLP., similar classification categories are Inversion of sucrose, Alkyl or cycloalkyl ethers, Treatment of starch-bearing material, Treatment of sacchariferous solutions, Catalysts used for the esterification, Products, Alkali cellulose, Return of intermediate products, Chitin, Chondroitin sulfate, Hyaluronic acid, Derivatives thereof, Preparation of other cellulose derivatives or modified cellulose, the assignee is a foreign company or corporation, the invention is titled Apparatus for Extraction of Saccharides From Lignocellulose Material by Means of Hydrolysis and Use of a Certain Material in the Apparatus, the known applicant's name is Fransson Gunnar, particularly claims a method of industrial extraction of saccharides from a lignocellulose material…, the application number is 12/450,014 (U.S.), the primary classification Hydrolysis of carbohydrates has been designated to the document, the application was published on Mar. 6, 2008, located in Ornskoldsvik (SE), the assignee company is Sekab E-Technology AB, the exemplary claims include number 1, the inventor's first name is Gunnar, and his last name is Fransson, the grant publication date is May. 20, 2014, the examination was conducted by Patricia L Hailey (1732 USPTO department) and Sheng H Davis (assistant examiner), developed by Torbjörn Van Der Meulen et al., claims 1-6 comprise the invention scope.

Invention classification information

The invention is classified under Carbohydrate manufacture and refining, Hydrolysis of carbohydrates, substrate containing cellulosic material, Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin, Preparation of polysaccharides not provided for in groups C08B 1/00-C08B 35/00, Derivatives thereof, Substrate contains cellulosic material.

Patent details
Publication number 08728243
Publication date May. 20, 2014
Kind code B2
Application number 12/450,014
Application date Mar. 6, 2008
Application type U
Application series code 12
Int. pub. country WO
Int. pub. number WO2008/108709
Int. publication Sep. 12, 2008
Int. filing country WO
Int. filing PCT/SE2008/000182
Filed internationally Mar. 6, 2008
National stage date Sep. 8, 2009
Extension term 1045
National classification 127/36
Total number of claims 6
Exemplary claims 1
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