Nova Patents
ATE414682T1

Process of removing contaminants from an olefin stream using extractive distillation

Abstract

Disclosed is a method of purifying olefin containing oxygenate contaminants. The method incorporates the use of extractive distillation. Under the appropriate conditions, olefins containing very low levels of oxygenate contaminants can be recovered.

Term

Term ended

Projected expiry passed 4 June 2022, 4.3 years ago.

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77 members in 15 offices

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94369501United States of AmericaA

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US2003004056A1United States of AmericaA1
US2003004386A1United States of AmericaA1
WO03004444A1World Intellectual Property Organization (WIPO)A1
US2003018228A1United States of AmericaA1
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AU2002327466A1AustraliaA1
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US2003055183A1United States of AmericaA1
US6559248B2United States of AmericaB2
WO03020678A3World Intellectual Property Organization (WIPO)A3
TW200304393ATaiwan Province of ChinaA
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AU2003202906A1AustraliaA1
US2003199721A1United States of AmericaA1
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US6657022B2United States of AmericaB2
TW575559BTaiwan Province of ChinaB
WO03020671A9World Intellectual Property Organization (WIPO)A9
EP1421044A1European Patent Office (EPO)A1
EP1421049A1European Patent Office (EPO)A1
KR20040044501ARepublic of KoreaA
KR20040044513ARepublic of KoreaA
US6756516B2United States of AmericaB2
BR0212157ABrazilA
EP1436241A1European Patent Office (EPO)A1
BR0212088ABrazilA
US2004157732A1United States of AmericaA1
EA200400269A1Eurasian Patent Organization (EAPO)A1
US6787501B2United States of AmericaB2
EA200400270A1Eurasian Patent Organization (EAPO)A1
CN1549801AChinaA
CN1549802AChinaA
EP1490172A1European Patent Office (EPO)A1
US2004266611A1United States of AmericaA1
US6838587B2United States of AmericaB2
US6844480B2United States of AmericaB2
JP2005501895AJapanA
CN1592727AChinaA
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CN1248994CChinaC
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ZA200407580BSouth AfricaB
EA007149B1Eurasian Patent Organization (EAPO)B1
TWI261588BTaiwan Province of ChinaB
MY126258AMalaysiaA
MY127300AMalaysiaA
US7160831B2United States of AmericaB2
EA007979B1Eurasian Patent Organization (EAPO)B1
EP1421044B1European Patent Office (EPO)B1
AT356102TAustriaT
ATE356102T1AustriaT1
CN1306998CChinaC
MY129086AMalaysiaA
CN1310854CChinaC
DE60218699D1GermanyD1
CN1332916CChinaC
ES2282488T3SpainT3
US7301065B2United States of AmericaB2
MY135415AMalaysiaA
US2008269436A1United States of AmericaA1
EP1421049B1European Patent Office (EPO)B1
AT414682TAustriaT
ATE414682T1This recordAustriaT1
DE60229957D1GermanyD1
ES2318021T3SpainT3
US7541508B2United States of AmericaB2