Invention Grant
- Patent Title: Method for vapor phase pulping with alcohol and sulfur dioxide
- Patent Title (中): 用酒精和二氧化硫气相制浆的方法
-
Application No.: US12409357Application Date: 2009-03-23
-
Publication No.: US08268125B2Publication Date: 2012-09-18
- Inventor: Theodora Retsina , Vesa Pylkkanen , Adriaan Reinhard P. van Heiningen
- Applicant: Theodora Retsina , Vesa Pylkkanen , Adriaan Reinhard P. van Heiningen
- Applicant Address: US GA Atlanta
- Assignee: API Intellectual Property Holdings, LLC
- Current Assignee: API Intellectual Property Holdings, LLC
- Current Assignee Address: US GA Atlanta
- Agent Ryan P. O'Connor
- Main IPC: D21C3/06
- IPC: D21C3/06 ; D21C3/20
Abstract:
A method for the fractionation of lignocellulosic materials into cellulose, hemicelluloses and lignin in a batch or continuous process in a treatment with vaporous mixture of aliphatic alcohol, sulfur dioxide and water. Cooking conditions are varied to get different proportions of cellulose, hemicelluloses and lignin. Chemical recovery through pressure release is described.
Public/Granted literature
- US20090236060A1 METHOD FOR VAPOR PHASE PULPING WITH ALCOHOL AND SULFUR DIOXIDE Public/Granted day:2009-09-24
Information query
