Method and apparatus for controlling gas evolution from chemical reactions

Patent · 25 May 1999

OSTI ID:6151773

Skorpik, J R; Dodson, M G

The present invention is directed toward monitoring a thermally driven gas evolving chemical reaction with an acoustic apparatus. Signals from the acoustic apparatus are used to control a heater to prevent a run-away condition. A digestion module in combination with a robotic arm further automate physical handling of sample material reaction vessels. The invention is especially useful for carrying out sample procedures defined in EPA Methods SW-846. 8 figs.

• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• Assignee: Battelle Memorial Inst., Richland, WA (United States)
• Patent Number(s): A; US 5906943
• Application Number: PPN: US 8-700603
• OSTI ID: 6151773
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
540320 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
ACOUSTIC MEASUREMENTS
CHEMICAL REACTORS
CONTROL
EQUIPMENT
MEASURING METHODS
MONITORING
NATIONAL ORGANIZATIONS
POLLUTANTS
SAMPLERS
TEMPERATURE CONTROL
TEMPERATURE MONITORING
US EPA
US ORGANIZATIONS