Industrial process for production of high-purity diphenyl...

Details Industrial process for production of high-purity diphenyl... Industrial process for production of high-purity diphenyl...

2005-08-24

2010-10-12

Shiao, Rei-tsang (Department: 1628)

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

Organic compounds

Carbonate esters

C558S274000

Reexamination Certificate

active

07812189

ABSTRACT:
According to the present invention, there are provided a high boiling point material separating column A and a diphenyl carbonate purifying column B each comprising a continuous multi-stage distillation column having specified structures, and there is provided a specific process that enables a high-purity diphenyl carbonate which is important as a raw material of a high-quality and high-performance polycarbonate to be produced stably for a prolonged period of time on an industrial scale of not less than 1 ton/hr from a reaction mixture containing the diphenyl carbonate using an apparatus in which these two continuous multi-stage distillation columns are connected together.

REFERENCES:
patent: 4045464 (1977-08-01), Romano et al.
patent: 4182726 (1980-01-01), Illuminati et al.
patent: 4252737 (1981-02-01), Krimm et al.
patent: 4410464 (1983-10-01), Hallgren
patent: 4552704 (1985-11-01), Mark
patent: 4554110 (1985-11-01), Mark
patent: 4609501 (1986-09-01), Mark
patent: 5210268 (1993-05-01), Fukuoka et al.
patent: 5231212 (1993-07-01), Buysch et al.
patent: 5282965 (1994-02-01), Urairi et al.
patent: 5284965 (1994-02-01), Buysch
patent: 5334742 (1994-08-01), Schon et al.
patent: 5344954 (1994-09-01), Schon et al.
patent: 5359118 (1994-10-01), Wagner et al.
patent: 5362901 (1994-11-01), Wagner et al.
patent: 5426207 (1995-06-01), Harrison et al.
patent: 5495038 (1996-02-01), Buysch et al.
patent: 5705673 (1998-01-01), Rivetti et al.
patent: 5747609 (1998-05-01), Komiya et al.
patent: 5872275 (1999-02-01), Komiya et al.
patent: 6093842 (2000-07-01), Oyevaar et al.
patent: 6197916 (2001-03-01), Pressman et al.
patent: 6262210 (2001-07-01), Tojo et al.
patent: 6346638 (2002-02-01), Tojo et al.
patent: 6479689 (2002-11-01), Tojo et al.
patent: 6861494 (2005-03-01), Debruin
patent: 7417161 (2008-08-01), Woo et al.
patent: 7622601 (2009-11-01), Fukuoka et al.
patent: 2001/0021786 (2001-09-01), Bruin et al.
patent: 2002/0107355 (2002-08-01), Bouwens et al.
patent: 2004/0236136 (2004-11-01), Schlosberg et al.
patent: 2004/0266974 (2004-12-01), Murthy et al.
patent: 2007/0219387 (2007-09-01), Fukuoka et al.
patent: 2007/0255069 (2007-11-01), Fukuoka et al.
patent: 2007/0260083 (2007-11-01), Fukuoka et al.
patent: 2007/0260084 (2007-11-01), Fukuoka et al.
patent: 2007/0260095 (2007-11-01), Fukuoka et al.
patent: 2007/0265461 (2007-11-01), Fukuoka et al.
patent: 2007/0270604 (2007-11-01), Fukuoka et al.
patent: 2008/0051595 (2008-02-01), Fukuoka et al.
patent: 2008/0064846 (2008-03-01), Fukuoka et al.
patent: 2008/0221348 (2008-09-01), Fukuoka et al.
patent: 2008/0223711 (2008-09-01), Fukuoka et al.
patent: 736063 (1943-06-01), None
patent: 010066 (2007-08-01), None
patent: 009715 (2008-02-01), None
patent: 0 461 274 (1991-12-01), None
patent: 0530615 (1993-03-01), None
patent: 0560159 (1993-09-01), None
patent: 0569812 (1993-11-01), None
patent: 0582930 (1994-02-01), None
patent: 0582931 (1994-02-01), None
patent: 0722931 (1996-07-01), None
patent: 0781760 (1997-07-01), None
patent: 0784048 (1997-07-01), None
patent: 0855384 (1998-07-01), None
patent: 0892001 (1999-01-01), None
patent: 1016648 (2000-07-01), None
patent: 1086940 (2001-03-01), None
patent: 1174406 (2002-01-01), None
patent: 1 760 069 (2007-03-01), None
patent: 1762559 (2007-03-01), None
patent: 1762560 (2007-03-01), None
patent: 1767518 (2007-03-01), None
patent: 1 783 112 (2007-05-01), None
patent: 1 787 977 (2007-05-01), None
patent: 1792890 (2007-06-01), None
patent: 1795523 (2007-06-01), None
patent: 1255746 (1995-11-01), None
patent: 51-75044 (1976-06-01), None
patent: 51-105032 (1976-09-01), None
patent: 54-48732 (1979-04-01), None
patent: 54-48733 (1979-04-01), None
patent: 54-63023 (1979-05-01), None
patent: 56-25138 (1981-03-01), None
patent: 56-123948 (1981-09-01), None
patent: 56-123949 (1981-09-01), None
patent: 57-176932 (1982-10-01), None
patent: 57-183745 (1982-11-01), None
patent: 58-185536 (1983-10-01), None
patent: 60-169444 (1985-09-01), None
patent: 60-169445 (1985-09-01), None
patent: 60-173016 (1985-09-01), None
patent: 61-172852 (1986-08-01), None
patent: 61-291545 (1986-12-01), None
patent: 62-277345 (1987-12-01), None
patent: 1-93560 (1989-04-01), None
patent: 1-265062 (1989-10-01), None
patent: 1-265063 (1989-10-01), None
patent: 1-265064 (1989-10-01), None
patent: 3-291257 (1991-12-01), None
patent: 4-9358 (1992-01-01), None
patent: 4-100824 (1992-04-01), None
patent: 4-198141 (1992-07-01), None
patent: 4-211038 (1992-08-01), None
patent: 4-224547 (1992-08-01), None
patent: 4-230242 (1992-08-01), None
patent: 4-235951 (1992-08-01), None
patent: 5-213830 (1993-08-01), None
patent: 6-9506 (1994-01-01), None
patent: 6-9507 (1994-01-01), None
patent: 6-41022 (1994-02-01), None
patent: 6-157424 (1994-06-01), None
patent: 6-184058 (1994-07-01), None
patent: 7-101908 (1995-04-01), None
patent: 7-304713 (1995-11-01), None
patent: 9-40616 (1997-02-01), None
patent: 9-59224 (1997-03-01), None
patent: 9-59225 (1997-03-01), None
patent: 9-110805 (1997-04-01), None
patent: 9-165357 (1997-06-01), None
patent: 9-169704 (1997-06-01), None
patent: 9-173819 (1997-07-01), None
patent: 9-176094 (1997-07-01), None
patent: 9-194435 (1997-07-01), None
patent: 9-194436 (1997-07-01), None
patent: 9-194437 (1997-07-01), None
patent: 9-255772 (1997-09-01), None
patent: 10-245366 (1998-09-01), None
patent: 11-12230 (1999-01-01), None
patent: 11-49727 (1999-02-01), None
patent: 11-92429 (1999-04-01), None
patent: 11-228504 (1999-08-01), None
patent: 2000-191596 (2000-07-01), None
patent: 2000-191597 (2000-07-01), None
patent: 2001-64234 (2001-03-01), None
patent: 2001-64235 (2001-03-01), None
patent: 2003-113144 (2003-04-01), None
patent: 2003-119168 (2003-04-01), None
patent: 2003-155264 (2003-05-01), None
patent: 2003-516376 (2003-05-01), None
patent: 2003-300936 (2003-10-01), None
patent: 2003-342209 (2003-12-01), None
patent: 2004-131421 (2004-04-01), None
patent: 2004-323384 (2004-11-01), None
patent: 2006-182683 (2006-07-01), None
patent: 2006-199643 (2006-08-01), None
patent: 2006-206497 (2006-08-01), None
patent: 2 041 869 (1995-08-01), None
patent: WO-91/09832 (1991-07-01), None
patent: WO-92/18458 (1992-10-01), None
patent: WO-97/11049 (1997-03-01), None
patent: WO-99/64382 (1999-12-01), None
patent: WO-99/64492 (1999-12-01), None
patent: WO-00/18720 (2000-04-01), None
patent: WO-00/51954 (2000-09-01), None
patent: WO-01/42187 (2001-06-01), None
patent: WO-02/40439 (2002-05-01), None
patent: WO-03/016257 (2003-02-01), None
patent: WO03/066569 (2003-08-01), None
patent: WO-2005/123638 (2005-12-01), None
patent: WO-2006/001256 (2006-01-01), None
patent: WO-2006/022294 (2006-03-01), None
patent: WO-2006/025424 (2006-03-01), None
patent: WO-2006-025478 (2006-03-01), None
patent: WO-2006/041075 (2006-04-01), None

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