Title:
【発明の名称】クレゾール混合物から金属イオンを除く方法
Document Type and Number:
Japanese Patent JP2002500679
Kind Code:
A
Abstract:
A method for removing of metal ions from cresol or from mixtures of aromatic compounds containing cresol is disclosed, wherein the water content in the cresol mixture is adjusted to at least about 0.5 per cent by weight by the addition of water and the water-and-cresol mixture is subsequently passed over an acid ion exchanger. As a result of this process a metal ion content of less than 20 ppb per metal ion is achieved.
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Inventors:
Tarby Aski Jörg
Furman Etgal
Bruggemann Wolfgang
Furman Etgal
Bruggemann Wolfgang
Application Number:
JP54889399A
Publication Date:
January 08, 2002
Filing Date:
March 30, 1999
Export Citation:
Assignee:
Lute Garth Fauefte Akchen Gesellshaft
International Classes:
B01J39/04; C07C37/82; C07C37/86; C07C39/07; (IPC1-7): C07C37/82; C07C39/07
Attorney, Agent or Firm:
Mitsufumi Ezaki (3 others)