The loss rate of the sulphonation progress is within the allowable limits.
磺化损失率也在允许范围之内。
2
The catalytic activity of catalyst, which was regenerated by sulphonation, could almost all be recovered.
经磺化再生后的催化剂，其催化活性基本上能完全恢复。
3
Further quantitative detection on sulfonate rate of sulphonation chitosan in titration determines that the average sulfonate rate of products is 8.51%.