Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q7305359> ?p ?o }
Showing triples 1 to 34 of
34
with 100 triples per page.
- Q7305359 subject Q7732013.
- Q7305359 abstract "Red oil is defined as a substance of varying composition formed when an organic solution, typically tri-n-butyl phosphate (TBP, an agent used for extracting heavy metals in nuclear reprocessing plants) and its diluent, comes in contact with concentrated nitric acid at a temperature above 120 °C.Red oil is relatively stable below 130 °C, but it can decompose explosively when its temperature israised above 130 °C. Three red oil events have occurred in the United States: at the Hanford Site in 1953, and at the Savannah River Site (SRS) in 1953 and 1975. A red oil explosion also occurred in 1993 at the Tomsk-7 site at Seversk, Russia.Generic types of equipment capable of producing red oil in the complex are categorized as evaporators, acid concentrators, and denitrators. The chemicals necessary to produce red oil are, at a minimum, TBP and nitric acid; other, contributory chemicals can include diluent (kerosene-like liquid used to dilute TBP) and/or aqueous phase metal nitrates.Controls for prevention or mitigation of a red oil explosion are generally categorized as controlsfor temperature, pressure, mass, and concentration. Maintaining a temperature of less than 130 °C isgenerally accepted as a means to prevent red oil explosions. Sufficient venting serves to keep pressure from destroying the process vessel, while also providing the means for evaporative cooling to keep red oil from reaching the runaway temperature. Mass controls utilize decanters or hydrocyclones to remove organics from feedstreams entering process equipment capable of producing red oil. Limiting the total available TBP is another mass control that mitigates the consequence of a red oil explosion by limiting its maximum available explosive energy. Finally, concentration control can be utilized to keep the nitric acid below 10 M (moles/liter). A U.S. government study concluded that none of the controls should be used alone; rather, they should be used together to provide effective defense in depth for prevention of a red oil explosion.Within the ethylene industry, "Red oil" is a term that describes an organic contaminant frequently encountered in caustic towers. The "red oil" is an organic polymer that forms from the aldol condensation of acetaldehyde in sodium hydroxide solution. Initially, the acetaldehyde forms a light floating yellow oil. Quickly this will continue to polymerize into a more familiar orangish/red color – hence the term "red oil". This red oil, particularly when aged, forms a more sticky heavy oil that is difficult to separate. This causes fouling and plugging issues in the caustic tower and downstream spent caustic handling systems, making red oil a contaminant that is closely monitored in the industry.".
- Q7305359 wikiPageExternalLink TECH-33.pdf.
- Q7305359 wikiPageExternalLink Ethylene%20plant%20effects%20on%20WAO%20operations_EPC_4-2009.pdf.
- Q7305359 wikiPageWikiLink Q102769.
- Q7305359 wikiPageWikiLink Q1208852.
- Q7305359 wikiPageWikiLink Q1284526.
- Q7305359 wikiPageWikiLink Q1415361.
- Q7305359 wikiPageWikiLink Q1439803.
- Q7305359 wikiPageWikiLink Q151313.
- Q7305359 wikiPageWikiLink Q174211.
- Q7305359 wikiPageWikiLink Q1764892.
- Q7305359 wikiPageWikiLink Q179057.
- Q7305359 wikiPageWikiLink Q182168.
- Q7305359 wikiPageWikiLink Q1896787.
- Q7305359 wikiPageWikiLink Q192036.
- Q7305359 wikiPageWikiLink Q193909.
- Q7305359 wikiPageWikiLink Q2458173.
- Q7305359 wikiPageWikiLink Q3268188.
- Q7305359 wikiPageWikiLink Q3917316.
- Q7305359 wikiPageWikiLink Q420061.
- Q7305359 wikiPageWikiLink Q42332.
- Q7305359 wikiPageWikiLink Q4723929.
- Q7305359 wikiPageWikiLink Q5251405.
- Q7305359 wikiPageWikiLink Q613394.
- Q7305359 wikiPageWikiLink Q61457.
- Q7305359 wikiPageWikiLink Q7576319.
- Q7305359 wikiPageWikiLink Q76904.
- Q7305359 wikiPageWikiLink Q7732013.
- Q7305359 wikiPageWikiLink Q81163.
- Q7305359 wikiPageWikiLink Q83320.
- Q7305359 wikiPageWikiLink Q908282.
- Q7305359 comment "Red oil is defined as a substance of varying composition formed when an organic solution, typically tri-n-butyl phosphate (TBP, an agent used for extracting heavy metals in nuclear reprocessing plants) and its diluent, comes in contact with concentrated nitric acid at a temperature above 120 °C.Red oil is relatively stable below 130 °C, but it can decompose explosively when its temperature israised above 130 °C.".
- Q7305359 label "Red oil".