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:
Mar. 12, 1985
Filed:
Nov. 15, 1982
Applicant:
Inventors:
Kazuhiro Yamazaki, Hyogo, JP;
Takamichi Miwa, Osaka, JP;
Assignee:
Daicel Chemical Industries, Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
159-3 ; 159 482 ;
Abstract
A concentrator including a vacuum evaporator having a cylindrical upper part and a lower part in the form of an inverted cone. A pipe for introducing a feedstock solution is installed with a downwardly opening end thereof positioned in substantially the center of the vacuum evaporator. A pipe is provided for removing solvent vapor from the evaporator, and a pipe is provided for recovering concentrated solution from the bottom of the evaporator.