Method for removing iodide compound from organic acid

Details Method for removing iodide compound from organic acid Method for removing iodide compound from organic acid

2011-07-26

2011-07-26

Zucker, Paul A (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

Reexamination Certificate

active

07985878

ABSTRACT:
An iodide compound is adsorbed and removed from an organic acid containing the iodide compound as an impurity by passing the organic acid through a packed bed of a cation-exchange resin having silver ion carried thereon at 50° C. or lower. The cation-exchange resin is a macroporous-type resin with an average particle size of 0.3 to 0.6 mm and an average pore size of 15 to 28 nm, and silver ion substitutes for 40 to 60% of the active site.

REFERENCES:
patent: 5801279 (1998-09-01), Miura et al.
patent: 6657078 (2003-12-01), Scates et al.
patent: 0196173 (1986-10-01), None
patent: 0296584 (1988-12-01), None
patent: 0484020 (1992-05-01), None
patent: 0535605 (1993-04-01), None
patent: 0687662 (1995-12-01), None
patent: 2006-016349 (2006-01-01), None
patent: 90-006072 (1986-10-01), None
patent: 00/56454 (2000-09-01), None
Kun et al, Journal of Polymer Science: Part C, The Pore Structure of Macroreticular Ion Exchange Resins, 1967, 16, pp. 1457-1469.
International Search Report of PCT/JP2007/063513, Mailing Date of Oct. 18, 2007.
Korean Office Action dated Jan. 10, 2011, issued in corresponding Korean Patent Application No. 10-2009-7005147.
Japanese Office Action date Feb. 2, 2011, issued in corresponding Japanese Patent Application No. 2006-258437.

Affiliated with

Also associated with

Rating

Method for removing iodide compound from organic acid 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 removing iodide compound from organic acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for removing iodide compound from organic acid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2678850