Recovery of sodium thiocyanate from industrial process...

Details Recovery of sodium thiocyanate from industrial process... Recovery of sodium thiocyanate from industrial process...

2008-01-01

2008-01-01

Langel, Wayne A. (Department: 1754)

Chemistry of inorganic compounds

Nitrogen or compound thereof

Carbon containing

C210S650000, C210S651000

Reexamination Certificate

active

07314606

ABSTRACT:
The present invention relates to a membrane-based nanofiltration process for separating sodium thiocyanate (NaSCN) from industrial solution containing impurities such as β-sulfopropionic acid, β-sulfopropionitrile, sodium sulfate and salts of iron and calcium in a single step to obtain a colorless aqueous solution for spinning of acrylic fiber in textile industry.

REFERENCES:
patent: 4415677 (1983-11-01), Lee et al.
patent: 4636376 (1987-01-01), Maloney et al.
patent: 4702805 (1987-10-01), Burkell et al.
patent: 5071563 (1991-12-01), Shiga et al.
patent: 5858240 (1999-01-01), Twardowski et al.
patent: 04321514 (1992-11-01), None
patent: 04338110 (1992-11-01), None
“Application of membrane separation impurity removal process in PAN production”. Yuan, Hua-bin; Jin, Zhen. Shihua Jishu Yu Yingyong, 20(6), 385-387, 391 (Chinese) 2002. (no month, Abstract only).

Affiliated with

Also associated with

Rating

Recovery of sodium thiocyanate from industrial process... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recovery of sodium thiocyanate from industrial process..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovery of sodium thiocyanate from industrial process... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2791182