JPS5729936A - Measuring method for free calcium oxide in converter slag - Google Patents

Measuring method for free calcium oxide in converter slag

Info

Publication number
JPS5729936A
JPS5729936A JP10566080A JP10566080A JPS5729936A JP S5729936 A JPS5729936 A JP S5729936A JP 10566080 A JP10566080 A JP 10566080A JP 10566080 A JP10566080 A JP 10566080A JP S5729936 A JPS5729936 A JP S5729936A
Authority
JP
Japan
Prior art keywords
converter slag
filtrate
calcium oxide
free calcium
measured
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10566080A
Other languages
Japanese (ja)
Inventor
Yozo Takano
Hiroyasu Yoshikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP10566080A priority Critical patent/JPS5729936A/en
Publication of JPS5729936A publication Critical patent/JPS5729936A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE:To rapidly and accurately measure free calcium oxide in converter slag, by filtering after extracting the converter slag with a solvent and detecting the amount of free calcium oxide correcting an electric conductivity of the filtrate based on the absorbance of the filtrate. CONSTITUTION:Converter slag is extracted by using an extraction solvent such as ethylene glycol in an extraction apparatus 1. Next, the filtrate is sucked by using a sending pump 2 after filtering the extraction liquid and is sent to an electric conductivity measuring apparatus 4 through a tube 3 made of silicone resin and then, the electric conductivity of the filtrate is measured. This measured value is recorded on a recorder 7. The filtrate passed through the apparatus 4 is sent to an absorbance measuring apparatus 8 through the tube 3 and the absorbance i.e. coloring degree is measured. Influence upon the conductivity caused by iron, manganese is found by this measured value and by this value in used as a correction value. Further, the amount of free calcium oxide in the converter slag is found by correcting the measured value of the conductivity by this correction value.
JP10566080A 1980-07-31 1980-07-31 Measuring method for free calcium oxide in converter slag Pending JPS5729936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10566080A JPS5729936A (en) 1980-07-31 1980-07-31 Measuring method for free calcium oxide in converter slag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10566080A JPS5729936A (en) 1980-07-31 1980-07-31 Measuring method for free calcium oxide in converter slag

Publications (1)

Publication Number Publication Date
JPS5729936A true JPS5729936A (en) 1982-02-18

Family

ID=14413587

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10566080A Pending JPS5729936A (en) 1980-07-31 1980-07-31 Measuring method for free calcium oxide in converter slag

Country Status (1)

Country Link
JP (1) JPS5729936A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100365412C (en) * 2005-06-24 2008-01-30 武汉钢铁集团冶金渣有限责任公司 Measurement of steel slag age

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100365412C (en) * 2005-06-24 2008-01-30 武汉钢铁集团冶金渣有限责任公司 Measurement of steel slag age

Similar Documents

Publication Publication Date Title
JPS52104991A (en) Method and apparatus for sighting operation preparing state for oxygen measuring and detecting device
JPS5729936A (en) Measuring method for free calcium oxide in converter slag
JPS5765053A (en) Test method for subscriber line
JPS57151808A (en) Level gauge for rail
JPS5218390A (en) Method of smpling gas for analysis
JPS53128238A (en) Velocity test system
JPS5322499A (en) Analysing method and appa ratus for organic acid
JPS5289368A (en) Automatic hardness measuring apparatus
JPS5233592A (en) Ion concentration measuring apparatus
JPS5224573A (en) Method and apparatus for measuring concentrations of fluorescent magnetic poder liquid
JPS5421795A (en) Electrophoresis analysis apparatus
JPS5425775A (en) Easy measuring method of dielectric characteristics
JPS56111457A (en) Measuring method for ion concentration
JPS5477454A (en) Apparatus for detecting freeze of sludge
JPS55135744A (en) Measuring method for automatic column
JPS57203943A (en) Method of and apparatus for detecting concentration of metal ion
JPS57189056A (en) Multiitem analyzing method of blood
JPS51140681A (en) Leakage detection device
JPS53109691A (en) Flow cell type analysis method and apparatus liquid for specimen
JPS55149848A (en) Measuring instrument of induction system for surface electric potential
JPS5222998A (en) Liquid metal leakage detecting device
FR2279108A1 (en) Measurement of consolidation and permeability coeffts. of ground - using permeameter with constant water press applied during test
JPS55125445A (en) Calibrating method in measuring concentration of specific component
JPS5235773A (en) Reactive semipermeable membrane
JPS5377589A (en) Capillary type isokinetic electrophoresis apparatus