The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 19, 2019

Filed:

Apr. 13, 2012
Applicants:

Thomas C. Eisenschmid, Cross Lanes, WV (US);

Michael C. Becker, League City, TX (US);

Donald L. Campbell, Jr., Sorrento, LA (US);

Michael A. Brammer, Lake Jackson, TX (US);

Glenn A. Miller, South Charleston, WV (US);

Edward Adrian Lord, London, GB;

Jens Rudolph, Worms, DE;

Hans-rüdiger Reeh, Einselthum, DE;

Inventors:

Thomas C. Eisenschmid, Cross Lanes, WV (US);

Michael C. Becker, League City, TX (US);

Donald L. Campbell, Jr., Sorrento, LA (US);

Michael A. Brammer, Lake Jackson, TX (US);

Glenn A. Miller, South Charleston, WV (US);

Edward Adrian Lord, London, GB;

Jens Rudolph, Worms, DE;

Hans-Rüdiger Reeh, Einselthum, DE;

Assignees:

Dow Technology Investments LLC, Midland, MI (US);

BASF SE, Ludwigshafen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/50 (2006.01); C07C 45/49 (2006.01); B01J 31/02 (2006.01); B01J 31/18 (2006.01); C07F 9/572 (2006.01);
U.S. Cl.
CPC ...
B01J 31/0255 (2013.01); B01J 31/185 (2013.01); B01J 31/186 (2013.01); C07F 9/572 (2013.01); C07F 9/5728 (2013.01); B01J 2231/321 (2013.01); B01J 2531/822 (2013.01); Y02P 20/582 (2015.11);
Abstract

The catalyst solution used in a hydroformylation process is prepared for storage by first reducing its acid concentration and/or water content, and then storing the solution under a blanket of syngas and/or an inert gas. Alternatively, or in addition to, the catalyst solution can be stored with an aqueous buffer comprising materials that will neutralize and/or absorb the acid species within the catalyst solution.


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