Patent · US Active

Method and apparatus for removing chloride from samples containing volatile organic carbon

US9499421B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

Endress+Hauser Conducta GmbH+Co. KG · DE

Inventors

Ulrich Kathe · Leonberg, DE
Andrea Gross · Mühlacker, DE
Anja Gerlinger · Stuttgart, DE

Key dates

Filing date	Nov 12, 2014
Grant date	Nov 22, 2016
Priority date	—
Expiry date	Nov 16, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG01N33/1826
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for removing chloride from samples containing volatile organic carbon, wherein a chloride containing sample is mixed with a difficulty volatile acid, wherein hydrochloric acid gas arises, which is present in dissolved form in a sample-acid mixture and then the hydrochloric acid gas is purged by a carrier gas from the sample-acid mixture, wherein the hydrochloric acid gas is removed from the carrier gas following the purging and the carrier gas is fed back to the sample-acid mixture. In order during the hydrochloric acid purging largely to suppress the driving out of easily volatile organic compounds, the sample-acid mixture has a temperature of approximately 3° C. to 30° C., wherein, following the purging from the sample-acid mixture, the hydrochloric acid gas is removed from the carrier gas by absorption with water.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.