THE CONTROL OF COATED MATERIALS BY MEANS OF A QUICK EXTRACTOR FITTED WITH A SEPARATED TANK

DIJON LABORATORY UTILIZES A SO-CALLED SEPARATED TANK PATENTED EXTRACTOR, TO CARRY OUT ITS COATED MATERIALS CONTROLS. THE APPARATUS IS COMPOSED OF A FLASK, A SEPARATED EXTRACTION TANK AND A COOLING TOWER. THE SYSTEM IS A QUADRUPLE ACTING ONE. THE COATED MATERIAL COLLECTS THE SOLVENT VAPOUR CONDENSED BY THE COOLER, SOAKS IN THE SOLVENT IS SUBMITTED TO A RISE OF TEMPERATURE AND IS SUBMITTED TO SWIRLING BY THE SOLVENT BOILING. THE STRIPPING IS EXCELLENT AND THE EXTRACTION TIME RATHER SHORT /FROM 35 MINUTES TO AN HOUR, ACCORDING TO THE FLASK-HEATER/. THE MEASUREMENT OF THE FILLER CONTENT OF THE SOLVENT IS CARRIED OUT DIRECTLY, THE WHOLE SOLVENT BEING FILTERED IN A LARGE-CAPACITY APPARATUS. THIS AVOIDS THE POSSIBILITIES OF MISTAKES DUE TO MEASUREMENT OF THE WHOLE VOLUME OF SOLVENT, MEASUREMENT OF THE VOLUME AND THE REPRESENTATIVITY OF AN ALIQUOT PART, EXTRAPOLATION OF THE ACHIEVED RESULT, AS THE MATERIALS ARE RAPIDLY DRIED IN AN INFRARED OVEN. TWO TYPES OF EXTRACTOR EXIST, THE FIRST ONE USES 350 TO 700 GRAMS OF COATED MATERIALS /ACCORD- ING TO THE CARTRIDGE/ AND THE OTHER ONE USES 1,000 TO 1,300 GRAMS, THE EXTRACTION TIME BEING ALMOST THE SAME.

• Supplemental Notes:
  • No11, Pp9-12, 5PHOT, 5REF
• Authors:
  • Clement, A
• Publication Date: 1965-1

Media Info

• Serial:
  • Bull Liaison Labs Routiers /France/
  • Publisher: Laboratoire Central des Ponts et Chausees (LCPC)

Subject/Index Terms

• TRT Terms: Boiling; Coatings; Condensation; Container tanks; Control; Cooling; Cooling towers; Drying; Fillers (Materials); Filters; Materials; Measurement; Separators; Solvents; Stripping (Pavements); Temperature; Vapors
• Old TRIS Terms: Coolers; Extractors; Flask
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00210504
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: Aug 11 1970 12:00AM