We measure the distributions of crude pyridine in light oil and ammonia liquor.and carry out the richening experiments of crude pyridine with the fractionation method.
英
美
- 对萃取脱酚溶剂(粗苯)及氨水中粗吡啶分布进行了测定,并采用蒸馏法富集粗吡啶。