Title:
QUANTITATIVE DETERMINATION METHOD OF TOLUENE INSOLUBLE MATTER IN COAL TAR
Document Type and Number:
Japanese Patent JP2015212672
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method of easily achieving rapid and accurate measurement of a toluene insoluble matter.SOLUTION: A solution obtained by mixing toluene into coal tars is supplied to a strainer including a filter, and is filtered, then the brightness L in the filter in the strainer is measured. On the basis of the calibration curve indicating the relationship between the brightness L and the coal tars in which toluene insoluble matter is previously determined, the toluene insoluble matter corresponding to the measured value of the brightness L is determined, and the toluene insoluble matter in the coal tars is quantitatively determined.
Inventors:
FUWA YAYOI
MUKAI TAKAMASA
AONO TOSHINAO
MUKAI TAKAMASA
AONO TOSHINAO
Application Number:
JP2014095890A
Publication Date:
November 26, 2015
Filing Date:
May 07, 2014
Export Citation:
Assignee:
JFE CHEMICAL CORP
International Classes:
G01N33/22
Domestic Patent References:
| JPS6230961A | 1987-02-09 | |||
| JPH04109367U | 1992-09-22 | |||
| JP2010248502A | 2010-11-04 | |||
| JPS58147489A | 1983-09-02 |
Foreign References:
| US4517072A | 1985-05-14 |
Attorney, Agent or Firm:
Kenji Sugimura
Keisuke Kawahara
Keisuke Kawahara
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