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:
Jan. 20, 1976
Filed:
Apr. 26, 1973
Toray Industries, Inc., Tokyo, JA;
Abstract
A process and apparatus for determining total oxygen demand of combustible materials in aqueous dispersion. The total oxygen demand is determined as the difference in concentration of oxygen within two feed gas streams composed of an inert gas containing oxygen; the first feed gas stream serving as the reference and the second feed gas stream serving as the combustion supporting one, which passes through a combustion conduit having a porous catalyst bed and contained within a combustion zone which is heated to a combustion supporting temperature. A small sample of the combustible material in aqueous dispersion is injected into the combustion supporting feed gas stream in advance of the catalyst bed within the combustion zone. As the sample is swept through the combustion conduit, the combustible materials in aqueous dispersion are burned. The effluent gas stream is directed through a continuous differential oxygen detection device and an electrical signal corresponding to the total oxygen demand for burning the combustible materials is generated.