Method for purifying quaternary onium salts

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07601871

ABSTRACT:
Provided are methods of purifying quaternary onium salts having the steps of (a) providing an quaternary onium salt solution having a first ionic impurity concentration; (b) providing an ion exchange material charged with electrochemically stable anions; and (c) contacting the salt solution with the ion exchange material to produce an quaternary onium salt solution having a second halide concentration is less than the first ionic impurity concentration.

REFERENCES:
patent: 5086374 (1992-02-01), MacFarlane et al.
patent: 5965054 (1999-10-01), McEwen et al.
patent: 5968338 (1999-10-01), Hulme et al.
patent: 6207039 (2001-03-01), Moulton et al.
patent: 2003/0121787 (2003-07-01), Reiter et al.
patent: 1246386 (1989-10-01), None
patent: 99/51529 (1999-10-01), None
patent: WO 2004/039761 (2004-05-01), None
Hajime Katano, et al.,Voltammetric Study of the Transfer of Polyammonium Ions at Nitrobenzene|Water Interface; vol. 20, Analytical Sciences, pp. 1581-1585 (Nov. 2004).
Sharon I. Lall, et al.;Polycations. Part X. LIPs, a new category of room temperature ionic liquid based on polyammonium salts, Chem. Commun., pp. 2413-2414 (2000).
Sorina Ulmeanu, et al.,Voltammetric characterisation of polyelectrolyte adsorption/transfer at the water|1,2-DCE interface; Electochemistry Communications 3; pp. 539-543 (2001).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for purifying quaternary onium salts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for purifying quaternary onium salts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for purifying quaternary onium salts will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4065107

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.