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.
Patent No.:
Date of Patent:
May. 21, 1996
Filed:
Jun. 21, 1993
Applicant:
Inventors:
Robert P Gallant, El Lago, TX (US);
Isaac L Smith, Baton Rouge, LA (US);
Joseph B Tedder, Jr, Seabrook, TX (US);
Lloyd T Crasto, Baton Rouge, LA (US);
George A Daniels, Baton Rouge, LA (US);
Assignee:
Albemarle Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; C07C / ;
U.S. Cl.
CPC ...
436 76 ; 436 81 ; 436139 ; 436147 ; 422 51 ; 585328 ; 585522 ;
Abstract
The process of preparing higher aluminum alkyls by olefin chain growth on alkyl aluminum is improved by using on-line flow-through calorimetry to determine the aluminum concentration of a process stream, such as the aluminum alkyl feed stream, by reacting a sample portion of the process stream with a molar excess of alcohol and measuring the change in temperature. The aluminum concentration of the stream can then be adjusted as required to maintain it within a selected range.