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English Translations » 工业硫酸圈 » Niacin contains sulfur dioxide

Niacin contains sulfur dioxide

2018-09-01View Original

Thread Content

How to reduce the sulfur dioxide content in fuming sulfuric acid during its production.
Reply #22018-09-02
If no sulfur dioxide is produced ahead, can sulfur dioxide still be present in nicotinic acid behind?
Reply #32018-09-02
For this issue, you can contact Mr. Gu from Shuangshi Environment; he has previously solved the problem of separating SO2 from HCl.
Reply #42018-09-03
Raising the temperature of nicotinic acid can have a certain effect.

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Translated at 2026-07-23 11:36:03

Original: https://bbs.hcbbs.com/thread-2052225-1-1.html

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