Method of producing lower alcohols from glycerol

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

Reexamination Certificate

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Reexamination Certificate

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07943805

ABSTRACT:
A reactive-separation process converts glycerin into lower alcohols, having boiling points less than 200° C., at high yields. Conversion of natural glycerin to propylene glycol through an acetol intermediate is achieved at temperatures from 150° to 250° C. at a pressure ranging from 1 and 25 bar. The preferred applications of the propylene glycol are as an antifreeze, deicing compound, or anti-icing compound. The preferred catalyst for this process in a copper-chromium powder.

REFERENCES:
patent: 3871445 (1975-03-01), Wanka et al.
patent: 4516632 (1985-05-01), Swift et al.
patent: 4642394 (1987-02-01), Che
patent: 5214219 (1993-05-01), Casale et al.
patent: 5266181 (1993-11-01), Matsumura et al.
patent: 5276181 (1994-01-01), Casale et al.
patent: 5616817 (1997-04-01), Schuster et al.
patent: 5811597 (1998-09-01), Hwan et al.
patent: 6080898 (2000-06-01), Drent et al.
patent: 6488742 (2002-12-01), Grunewald et al.
patent: 2002/0077501 (2002-06-01), Hoyme et al.
patent: 2005/0244312 (2005-11-01), Suppes et al.
patent: 2007/0287865 (2007-12-01), Arredondo et al.
patent: 524 1001 (1931-05-01), None
patent: 41 28 692 (1993-03-01), None
patent: 4302464 (1994-08-01), None
patent: 0523 015 (1993-01-01), None
patent: 0523014 (1993-01-01), None
patent: 0544 157 (1993-06-01), None
patent: 0713849 (1996-05-01), None
patent: 0 826 691 (1998-03-01), None
patent: 490 211 (1938-08-01), None
patent: 2002 265986 (2002-09-01), None
patent: WO 9305006 (1993-03-01), None
patent: WO 01/46102 (2001-06-01), None
patent: WO 01/66499 (2001-09-01), None
patent: WO 03/087041 (2003-10-01), None
patent: WO2005/095536 (2005-10-01), None
patent: WO 2007053705 (2007-10-01), None
PCT/US2008/087842 International Search Report & Written Opinion mailed Mar. 5, 2009, 14 pages.
European Application No. 05726117; Examination Report dated Apr. 16, 2007; 3 pages.
European Application No. 05726117; Response to Examination Report dated Oct. 26, 2007; 5 pages.
Itsuno, Organic Reactions, 1998, 52 (Bib. And Reaction equation 522 of 659).
PCT/US06/042707 International Search Report and Written Opinion; mailed Apr. 7, 2007; 16 pages.
PCT/US05/009901 International Preliminary Report on Patentability, Sep. 26, 2006; 21 pages.
U.S. Appl. No. 10/420,047; Restriction Requirement mailed Jan. 2, 2004; 4 pages.
U.S. Appl. No. 10/420,047; Response to Restriction Requirement filed Jan. 29, 2004; 2 pages.
U.S. Appl. No. 10/420,047; Office Action mailed May 19, 2004; 9 pages.
U.S. Appl. No. 10/420,047; Response to Office Action filed Aug. 3, 2004; 3 pages.
International Search Report and Written Opinion for PCT/US2005/009901, Jan. 19, 2006.
Dasari, M.A., et al.: “Low-Pressure Hydrogenolysis Of Glycerol To Propylene Glycol,” Applied Catalysis A: General, Elsevier Science, Amsterdam, Netherlands, vol. 281, No. 1-2, p. 225-231, Jan. 1, 2005.
Montassier, C., et al.: “Deactivation Of Supported Copper Based Catalysts During Polyol Conversion In Aqueous Phase” Applied Catalysis A: General, Elsevier Science, Amsterdam, Netherlands, vol. 121, No. 2, p. 231-244, Jan. 19, 1995.
Montassier, C., et al.: “Polyol Conversion by Liquid Phase Heterogeneous Catalysis Over Metals,” Heterogeneous Catalysis And Fine Chemicals, p. 165-170, 1988.
U.S. Appl. No. 12/645,213, Notice of Allowance mailed Jun. 14, 2010, 6 pages.
European Application No. 06836781.2, Communication Pursuant to Article 94(3) EPC dated Apr. 20, 2010, 8 pages.
European Application No. 05726117.4, Communication Pursuant to Article 94(3) EPC dated Jan. 12, 2010, 5 pages.
European Application No. 05726117.4, Response to Communication filed Jul. 22, 2010, 15 pages.
U.S. Appl. No. 11/510,992, Restriction Requirement mailed Mar. 15, 2010, 6 pages.
U.S. Appl. No. 11/510,992, Restriction Requirement filed Apr. 15, 2010, 14 pages.
U.S. Appl. No. 11/510,992, Notice of noncompliant response mailed Apr. 29, 2010, 2 pages.
U.S. Appl. No. 11/510,992, Response to Notice of noncompliant response filed Apr. 29, 2010, 14 pages.
U.S. Appl. No. 11/510,992, Office Action mailed Jul. 22, 2010, 5 pages.
U.S. Appl. No. 11/088,603, Examiner Interview Summary and Notice of Allowance dated Sep. 29, 2009, 7 pages.
U.S. Appl. No. 11/088,603 Office Action mailed Jul. 24, 2008; 10 pages.
U.S. Appl. No. 11/088,603 Response to Office Action filed Oct. 24, 2008; 12 pages.
U.S. Appl. No. 11/088,603 Office Action mailed Feb. 18, 2009; 8 pages.
U.S. Appl. No. 11/088,603 Response to Office Action filed Aug. 18, 2009; 15 pages.
European Application No. 06836781.2; Response dated Oct. 28, 2010, 24 pages.
U.S. Appl. No. 11/510,992, Response to Office Action filed Jan. 21, 2011, 16 pages.
European Application No. 06 836 781.2, Response to Office Action filed Oct. 28, 2010, 6 pages.
European Application No. 06 836 781.2, Summons to attend oral proceedings, Dec. 27, 2010, 8 pages.

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