CORROSION PREVENTING METHOD OF METAL MATERIAL

Title:

CORROSION PREVENTING METHOD OF METAL MATERIAL

Document Type and Number:

Japanese Patent JPH07278854

Kind Code:

A

Abstract:

PURPOSE: To obtain an effective corrosion preventing effect for a metal material of a device and to realize an industrial process to handle org. sulfonic acid by using copper ion as a corrosion inhibitor to be coexistent with the org. sulfonic acid to be handled in the device.

CONSTITUTION: Copper ion is made to coexist in an aq. soln. containing org. sulfonic acid in such a device that the org. sulfonic acid is handled, especially, in a device to produce alcohols by hydration of olefins using the org. sulfonic acid as a catalyst. By this method, the corrosion rate of the metal material of the device can be largely decreased. Thus, a process to handle an org. sulfonic acid soln. can be performed by using an inexpensive corrosion inhibitor and inexpensive material such as stainless steel without causing corrosion.

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Inventors:

HATTORI AKIYUKI
NAKAMURA KAZUHIRO
NODA TOSHIKI
WASHIYAMA TOMOHIRO

Application Number:

JP6853094A

Publication Date:

October 24, 1995

Filing Date:

April 06, 1994

Export Citation:

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Assignee:

TOSOH CORP

International Classes:

C07C29/04; C07B61/00; C07C31/02; C23F11/04; C23F11/18; (IPC1-7): C23F11/04; C07C29/04; C07C31/02

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