Method of removing iron contaminants from liquid streams...

Details Method of removing iron contaminants from liquid streams... Method of removing iron contaminants from liquid streams...

C - Chemistry, Metallurgy

07

C

C07C 51/00 (2006.01) C07C 51/265 (2006.01) C07C 51/487 (2006.01)

Patent

CA 2480597

This invention relates to control or removal of amounts of dissolved iron that may be present in liquid process streams in the manufacture of aromatic acids. The present invention further relates to the control or removal of dissolved iron contaminants present in liquid streams during the manufacture of a crude aromatic acid. The present invention also further relates to the control or removal of dissolved iron contaminants present in liquid streams during the purification of a crude aromatic acid. The present invention also further relates to controlling of decreasing the formation of manufacture of crude aromatic acid and/or purification of crude aromatic acid.

Cette invention porte sur des procédés permettant d'agir sur des quantités de fer dissous dans des veines de liquide de traitement lors de la fabrication d'acides aromatiques ou d'extraire ce fer. Elle a également trait à des procédés permettant d'agir sur des ferrocontaminants dissous, présents dans des veines liquides lors de la fabrication d'un acide aromatique brut ou de les extraire de celles-ci. Elle concerne, en outre, des procédés permettant d'agir sur des ferrocontaminants dissous, présents dans des veines liquides lors de la purification d'un acide aromatique brut ou de les extraire de celles-ci. Elle porte, de surcroît, sur la régulation et ou la réduction de la formation d'oxydes de fer sur les surfaces d'un équipement utilisé pour la fabrication et/ou la purification d'acide aromatique brut.

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