Felxible method for the common production of formic acid, a...

Details Felxible method for the common production of formic acid, a... Felxible method for the common production of formic acid, a...

2006-01-31

2006-01-31

Zucker, Paul A. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C562S609000, C562S891000

Reexamination Certificate

active

06992212

ABSTRACT:
Formic acid and a carboxylic acid having at least two carbon atoms and/or derivatives thereof are prepared jointly by a process in which(a) a formic ester (I) is transesterified with a carboxylic acid having at least two carbon atoms (II) to form formic acid (III) and the corresponding carboxylic ester (IV); and(b) at least part of the carboxylic ester (IV) formed in step (a) is carbonylated to give the corresponding carboxylic anhydride (V).

REFERENCES:
patent: 2045739 (1936-06-01), Wiezevich
patent: 3328439 (1967-06-01), Hamilton
patent: 3787485 (1974-01-01), Fernandez
patent: 4002678 (1977-01-01), Naglieri et al.
patent: 4018816 (1977-04-01), Onoda et al.
patent: 4112235 (1978-09-01), Schmerling
patent: 4239698 (1980-12-01), Isshiki et al.
patent: 4333885 (1982-06-01), Feitler
patent: 4358411 (1982-11-01), Porcelli et al.
patent: 4374070 (1983-02-01), Larkins et al.
patent: 4430273 (1984-02-01), Erpenbach et al.
patent: 4519956 (1985-05-01), Lin et al.
patent: 4559183 (1985-12-01), Hewlett
patent: 4959498 (1990-09-01), Luft et al.
patent: 4978778 (1990-12-01), Isshiki et al.
patent: 5003104 (1991-03-01), Paulik et al.
patent: 24 41 502 (1975-05-01), None
patent: 27 10 630 (1978-09-01), None
patent: 28 44 371 (1979-04-01), None
patent: 28 36 084 (1980-03-01), None
patent: 30 24 353 (1981-01-01), None
patent: 35 06632 (1986-08-01), None
patent: 048 174 (1982-09-01), None
patent: 087 870 (1983-09-01), None
patent: 193 799 (1986-09-01), None
patent: 336 218 (1989-10-01), None
patent: 348 309 (1989-12-01), None
patent: 479 463 (1992-04-01), None
patent: 677 505 (1995-10-01), None
patent: 1 365 351 (1974-09-01), None
patent: 2013184 (1979-08-01), None
patent: 2 333 773 (1999-09-01), None
patent: 82/01704 (1982-05-01), None
patent: 93/04026 (1993-04-01), None
U1.Ency.Ind.Chem,6thEd.2000, Elec.Rel. Formic Acid.
U1.Ency.Ind.Chem.6thEd.2000,Elec.Rel. Actic Acid.
U1.Ency.Ind.Chem.6thEd.2000,Elec Rel. Acetic Anhydride and mixed fatty acid anhyudrides.
U1.Ency.Ind.Chem.6thEd.2000,Elec.Rel. Vinyl Esters.
Derwent.89-128337/17=SU 1432-048.
U1.Ency. Ind.Chem.6thEd.2000,Elec.Rel. Ketenes.
Derwent 87-209292/30 = J6 2135-445.
Derwent 97-316511/29 = JP 09124544.
Derwent Novel 2, 2, 4, 4-tetra-methyl-cyclobutane-diol mfr. by pyrolysis of isobutyric anhydride to di methyl ketone. . .
Apparatus for the preparation of ketene. . . , Fisher et al., Received Feb. 19, 1953, 1055-1057.
Inorganic Chem. Com. vol. 3, No. 11, Marr et al., 617-619.

Affiliated with

Also associated with

Rating

Felxible method for the common production of formic acid, a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Felxible method for the common production of formic acid, a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Felxible method for the common production of formic acid, a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3564035