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Class Information
Number: 560/99
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Carboxylic acid esters > Aromatic acid moiety > Polycarboxylic acid > Processes > Esterification of acid, salt, acid halide or anhydride with alcohol > Metal containing catalyst utilized
Description: Processes wherein the esterification reaction is carried out in the presence of a metal containing catalyst.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8344174 Batch esterification Jan. 1, 2013
8288595 Plasticiser alcohol and production improvement Oct. 16, 2012
8143459 Plasticiser alcohol and production improvement Mar. 27, 2012
8034970 Method of making phthalic acid diesters Oct. 11, 2011
7772417 Heterogeneous organotin catalysts Aug. 10, 2010
7358385 Bicyclo[4.3.0]nonane-3(4),7(8)-dicarboxylic acid and a process for its preparation Apr. 15, 2008
7307183 Process for producing tetrabromobenzoate esters Dec. 11, 2007
7276621 Production of di-(2-ethylhexyl) terephthalate Oct. 2, 2007
6989461 Catalyst for asymmetric (transfer) hydrogenation Jan. 24, 2006
6310235 Method for producing ester plasticizers Oct. 30, 2001
6211398 Process for the preparation of dialkyl esters of naphthalenedicarboxylic acids Apr. 3, 2001
6100374 Method of purifying crude naphthalenedicarboxlic acid and process for preparing polyethylene naphthalate Aug. 8, 2000
6028211 Composition and method for reducing fouling in process equipment used for manufacturing aromatic materials Feb. 22, 2000
5922900 Process for producing carboxylic acid esters and catalysts therefor Jul. 13, 1999
5880310 Process for producing plasticizer esters Mar. 9, 1999
5760265 Process for preparation of an ester utilizing an esterifying catalyst Jun. 2, 1998
5728323 Process for preparing dialkyl tetrahalophthalates Mar. 17, 1998
5719311 Catalytic processes for esterification of carboxylic acids Feb. 17, 1998
5710316 Transesterification process for making allyl esters of aromatic carboxylic acids Jan. 20, 1998
5646331 Process for working up residues from the raw ester distillation in the preparation of dimethyl terephthalate(DMT) Jul. 8, 1997
5571938 Esterification process using a catalyst consisting of sand, stannous tin and aluminate Nov. 5, 1996
5534652 Preparation of plasticizer esters from phthalic anhydride residue Jul. 9, 1996
5532405 Preparation of plasticizer or polyol esters by the staged addition of the lower boiling point reactant Jul. 2, 1996
5502240 Esterification process using a titamium zeolite catalyst Mar. 26, 1996
5451687 Process for producing O,O'-diacyltartaric anhydride and process for producing O,O'-diacyltartaric acid Sep. 19, 1995
5434294 Method of making plasticizers Jul. 18, 1995
5324853 Process for the production of plasticizer and polyolesters Jun. 28, 1994
5245072 Process for production of biodegradable esters Sep. 14, 1993
5208366 High yield method for preparation of dialkyl esters of polyhaloaromatic acids May. 4, 1993
5138025 Stabilized naphthalenedicarboxylic acid diesters Aug. 11, 1992
5087730 Method for producing a purified ester Feb. 11, 1992
5049697 High yield method for preparation of dialkyl esters of polyhaloaromatic acids Sep. 17, 1991
5015759 Process for increasing the direct esterification reaction rate of a diacid with a glycol May. 14, 1991
4868324 Purification of diphenyl phthalates Sep. 19, 1989
4820862 Process for the preparation of dimethyl terephthalate Apr. 11, 1989
4775497 Esterification process with calcium hydroxyaryl phosphonate-organosilicon heterocycle catalyst system Oct. 4, 1988
4767881 Synthesis of diphenyl phthlates Aug. 30, 1988
4754053 Process for preparing alkyl tetrabromophthalates Jun. 28, 1988
4745211 Process for the preparation of purified bis(2-hydroxyethyl) ester of 2,6-naphthalenedicarboxylic acid May. 17, 1988
4675434 Process for producing phthalic acid esters Jun. 23, 1987
4661622 Method for producing composite ester Apr. 28, 1987
4615836 Process for preparing alkylmercaptoalkyl esters Oct. 7, 1986
4564697 Halogenated polyol-ester neutralization agent Jan. 14, 1986
4526725 Catalyst composition and method for the manufacture of esters Jul. 2, 1985
4506091 Removal of catalyst residues from polyesters Mar. 19, 1985
4503256 Phlorophenone derivatives, processes for preparing such compounds, uses and pharmaceutical compositions of phlorophenone compounds Mar. 5, 1985
4473702 Method for producing diallyl ester of aromatic dicarboxylic acid Sep. 25, 1984
4398034 Process for the preparation of low molecular weight polyesters from hydroxypivaldehyde Aug. 9, 1983
4374263 Process for the production of esters in the presence of a heterogeneous esterification catalyst Feb. 15, 1983
4346230 Process for the preparation of dimethyl terephthalate Aug. 24, 1982

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