Granted Patent
B2
US 7,022,885 · App. 10/301,441 · Granted Apr 4, 2006
Purification on methyl tertiary butyl ether
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Abstract
The present invention relates to purification of an MTBE process stream by contact in the liquid phase with a large pore zeolite such as 13X or Zeolite Y.
Claims (3)
1. The method of separating close boiling impurities from a MTBE process stream feed comprised mainly of MTBE and containing 0.1 to about 2.0 wt % of said impurities which comprises contacting the MTBE feed in the liquid phase with a solid contact material consisting essentially of a solid large pore zeolite and recovering a MTBE product stream reduced in content of said impurities from the contact.
2. The method of claim 1 wherein the zeolite is 13x.
3. The method of claim 1 wherein the zeolite is zeolite Y.
Assignments (21)
RELEASE OF SECURITY INTEREST
Recorded Jan 23, 2014
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: LYONDELL CHEMICAL TECHNOLOGY, L.P.
Reel/Frame 032123/0799 →
RELEASE OF SECURITY INTEREST
Recorded Jan 23, 2014
From: CITIBANK, N.A.
To: LYONDELL CHEMICAL TECHNOLOGY, L.P.
Reel/Frame 032125/0296 →
RELEASE OF SECURITY INTEREST
Recorded Jan 23, 2014
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: LYONDELL CHEMICAL TECHNOLOGY, L.P.
Reel/Frame 032137/0156 →
APPOINTMENT OF SUCCESSOR ADMINISTRATIVE AGENT
Recorded Jan 23, 2014
From: UBS AG, STAMFORD BRANCH
To: BANK OF AMERICA, N.A.
Reel/Frame 032137/0639 →
RELEASE OF SECURITY INTEREST
Recorded Jan 23, 2014
From: BANK OF AMERICA, N.A.
To: LYONDELL CHEMICAL TECHNOLOGY, L.P.
Reel/Frame 032138/0134 →
SECURITY AGREEMENT
Recorded May 19, 2010
From: LYONDELL CHEMICAL TECHNOLOGY, L.P.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 024402/0681 →
SECURITY AGREEMENT
Recorded May 18, 2010
From: LYONDELL CHEMICAL TECHNOLOGY, L.P.
To: CITIBANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 024397/0818 →
SECURITY AGREEMENT
Recorded May 7, 2010
From: LYONDELL CHEMICAL TECHNOLOGY, L.P.
To: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
Reel/Frame 024342/0801 →
SECURITY AGREEMENT
Recorded May 6, 2010
From: LYONDELL CHEMICAL TECHNOLOGY, L.P.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS COLLATERAL AGENT
Reel/Frame 024342/0421 →
RELEASE OF SECURITY INTEREST
Recorded May 5, 2010
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: LYONDELL CHEMICAL TECHNOLOGY, L.P.; EQUISTAR CHEMICALS, LP
Reel/Frame 024337/0856 →
RELEASE OF SECURITY INTEREST
Recorded May 5, 2010
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: LYONDELL CHEMICAL TECHNOLOGY, L.P.; EQUISTAR CHEMICALS, LP
Reel/Frame 024337/0705 →
RELEASE OF SECURITY INTEREST
Recorded May 5, 2010
From: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
To: LYONDELL CHEMICAL TECHNOLOGY, LP
Reel/Frame 024337/0285 →
RELEASE OF SECURITY INTEREST
Recorded May 5, 2010
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: LYONDELL CHEMICAL TECHNOLOGY, LP
Reel/Frame 024337/0020 →
SECURITY AGREEMENT
Recorded Oct 30, 2009
From: LYONDELL CHEMICAL TECHNOLOGY, L.P.
To: UBS AG, STAMFORD BRANCH, AS COLLATERAL AGENT
Reel/Frame 023449/0138 →
SECURITY AGREEMENT
Recorded Apr 9, 2009
From: LYONDELL CHEMICAL TECHNOLOGY, L.P.
To: CITIBANK, N.A., AS ADMINISTRATIVE AGENT AND COLLATERAL AGENT
Reel/Frame 022708/0830 →
SECURITY AGREEMENT
Recorded Aug 4, 2008
From: BASELL POLYOLEFINE GMBH; ARCO CHEMICAL TECHNOLOGY L.P.; ARCO CHEMICAL TECHNOLOGY, INC.; ATLANTIC RICHFIELD COMPANY; BASELL NORTH AMERICA, INC.; BASELL POLYOLEFIN GMBH; LYONDELL CHEMICAL COMPANY; EQUISTAR CHEMICALS, L.P.
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 021354/0708 →
GRANT OF SECURITY INTEREST IN UNITED STATES PATENTS AND PATENT APPLICATIONS
Recorded Mar 26, 2008
From: BASELL POLYOLEFINE GMBH; ARCO CHEMICAL TECHNOLOGY L.P.; ARCO CHEMICAL TECHNOLOGY, INC.; ATLANTIC RICHFIELD COMPANY; BASELL NORTH AMERICA, INC.; EQUISTAR CHEMICALS. LP.; LYONDELL CHEMICAL COMPANY; LYONDELL CHEMICAL TECHNOLOGY, L.P.; LYONDELL PETROCHEMICAL COMPANY; NATIONAL DISTILLERS AND CHEMICAL CORPORATION; OCCIDENTAL CHEMICAL CORPORATION; OLIN CORPORATION; QUANTUM CHEMICAL CORPORATION; BASELL POLYOLEFIN GMBH
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 020704/0562 →
RELEASE OF LYONDELL CHEMICAL TECHNOLOGY, L.P. PATENT SECURITY AGREEMENT
Recorded Mar 20, 2008
From: JPMORGAN CHASE BANK, N.A.
To: LYONDELL CHEMICAL TECHNOLOGY, L.P.
Reel/Frame 020679/0063 →
SECURITY AGREEMENT
Recorded Sep 15, 2006
From: LYONDELL CHEMICAL TECHNOLOGY, L.P.
To: JPMORGAN CHASE BANK N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 018260/0306 →
CHANGE OF NAME
Recorded Jun 27, 2005
From: ARCO CHEMICAL TECHNOLOGY, L.P.
To: LYONDELL CHEMICAL TECHNOLOGY, L.P.
Reel/Frame 016206/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Nov 21, 2002
From: KARAS, LAWRENCE J.; CANDELA, LAWRENCE M.; KAHN, ANDREW P.
To: ARCO CHEMICAL TECHNOLOGY, L.P.
Reel/Frame 013521/0065 →