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:
Sep. 18, 1990
Filed:
Nov. 17, 1988
Applicant:
Inventors:
Renato Carobbi, Pistoia, IT;
Franco Innocenti, Bagno A Ripoli, IT;
Assignee:
SIRAC S.r.l., , IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C13K / ; C13D / ; C13D / ;
U.S. Cl.
CPC ...
127 463 ; 127 48 ; 127 50 ; 536125 ; 536127 ; 423119 ; 423600 ;
Abstract
A process for preparing lactulose from lactose in which an aqueous lactose mixture is reacted with a sodium aluminate solution and the solution obtained is continuously neutralized by feeding this solution and a sulphuric acid solution to a reactor simultaneously in such a manner as to obtain a pH of between 4.5 and 8. By operating in this manner an aluminium hydroxide suspension is obtained which can be easily separated from the lactulose solution.