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Patent No. 5687752

Dining Table Having Integral Dishwasher

A space-saving dishwasher, which may be installed within a counter top or table, having a dish-carrying rack that is vertically shiftable through the open top of the dishwasher for facilitating loading and unloading of the dishes.

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Class 562/482 - Preparation by isomerization


Subclass of Class 562 - Organic compounds -- part of the class 532-570 series
Definition: Processes wherein the acid is produced by isomerization,
No. of patents: 10
Last issue date: 11/12/2002


NumberTitleIssue Date
6479699Process for carboxylation of naphthoic acid to naphthalene dicarboxylic acid
Disclosed is a method for selective carboxylation of naphthoic acid, or other aromatic mono-acids to form primarily 2,3-naphthalene dicarboxylic acid (2,3-NDA) or other aromatic diacids which comprises reacting said aromatic mono-acid in the presence of o...
11/12/2002
6441224Process for carboxylation of naphthoic acid to naphthalene dicarboxylic acid
Disclosed is a method for selective carboxylation of naphthoic acid, or other aromatic mono-acids to form primarily 2,3-naphthalene dicarboxylic acid (2,3-NDA) or other aromatic diacids which comprises reacting said aromatic mono-acid in the presence of o...
08/27/2002
6426430Method for reduction of potassium in an integrated process for the production of 2,6--NDA
Disclosed is a method for reducing alkali metals in aromatic dicarboxylic acids produced by disproportionation or rearrangement of an alkali salt of a mono- or dicarboxylic acid to levels acceptable for polymerization which comprises: a) Washing the aroma...
07/30/2002
4942257Method of manufacturing alkali metal salt of 2,3,6,7-naphthalenetetracarboxylic acid
A method of manufacturing an alkali metal salt of 2,3,6,7-naphthalenetetracarboxylic acid. Either a sodium salt or a mixture of sodium salt and potassium salt of at least one naphthalenecarboxylic acid selected form the group consisting of naphthoic acids...
07/17/1990
4918226Process for converting formate esters to carboxylic acids
A process for converting formic acid esters or transesterification products thereof to carboxylic acids comprising contacting a formic acid ester of the formula (HCOO)n --R where R is aliphatic, cycloaliphatic or aralkyl and n is 1 or 2 with a ...
04/17/1990
4820868Process for preparation of naphthalene-2,6-dicarboxylic acid dialkali metal salts
Disclosed is a process for the preparation of a naphthalene-2,6-dicarboxylic acid dialkali metal salt which comprises heating an alkali metal salt of naphthoic acid and/or a dialkali metal salt of naphthalene-dicarboxylic acid under pressure with carbon d...
04/11/1989
4345098Process for producing benzene carboxylic acid salts and their acids
A process for producing an isomerized benzene carboxylic acid salt by treating a mixture of an aromatic material, water, and a water soluble reagent comprising a Group Ia or IIa metal with oxygen under conditions sufficient to convert at least a portion o...
08/17/1982
4263451Removing carbonaceous contaminant from zinc oxide
A method for removing carbonaceous impurity from zinc oxide by contacting a water slurry of contaminated zinc oxide with oxygen in a reactor at reaction conditions sufficient to produce oxide products of the carbon contaminants and passing the reactor eff...
04/21/1981
4230885Conversion of aromatic carboxylates to terephthalate
Mixture of salts of aromatic mono- or polycarboxylic acids are converted to terephthalate salts in presence of selected catalyst or catalyst mixture, e.g., a mixture of potassium, sodium and cesium benzoates, is disproportionated in the presence of zinc a...
10/28/1980
39548401,3,5,7-Naphthalenetetracarboxylic acids and process for preparation thereof
A novel 1,3,5,7-naphthalenetetracarboxylic acid, an alkali salt thereof, or an ester thereof, and a novel process for preparation thereof, and method of effective purification thereof....
05/04/1976
 
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