Plant fiber material acidolysis solution electrodialysis detoxification process and device |
Title： |
| Plant fiber material acidolysis solution electrodialysis detoxification process and device |
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Application Number： |
200710098477 |
Application Date： |
2007/04/18 |
Announcement Date： |
2007/12/12 |
Pub. Date： |
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Publication Number： |
101086025 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[] |
IPC： |
C13K 1/04C07H 1/08A23L 1/015 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Zhang Jianan, Cheng Keke, Zhou Yujie, Liu Hongjuan, Liu Dehua |
Key Words： |
acidolysis, electrodialysis, detoxification, Plant fiber |
Abstract： |
The invention discloses a process for removing toxic material from acid hydrolysis solution of plant fiber raw material through electrodialysis, belonging to biological energy and green chemical industry field. It comprises following steps: cutting and dedusting plant fiber material at direct current field action in electrodialysis set, which comprises a plurality of anion exchange membrane and a plurality of cation exchange membrane; acid hydrolyzing plant fiber according to a certain solid and liquid ratio, the anion in acid hydrolysis solution moving into concentrated compartment passing through anion exchange membrane; while the cation moving into concentrated compartment passing through anion exchange membrane, so the acid in dilute compartments is removed. The invention can eliminate acid and other ionic foreigh matters from acid hydrolysis solution, greatly reduce the product loss rate and recover acid from hydrolysis solution, and it is characterized by simple device and process, good effect of removing toxic substance, easy for control, low cost and good industrial prospect. |
Claim： |
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Priority： |
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PCT： |
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