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JP5412831B2 |
A method of replacing a first dispersion medium in a starting slurry composed of the first dispersion medium and isophthalic acid crystals with a second dispersion medium. The starting slurry is tangentially fed to a vertically extending...
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JP5408648B2 |
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JP2014019677A |
To provide a method for manufacturing a terephthalic acid, having a catalyst collection process using a pyridine ring containing chelating resin and capable of immediately, simply analyzing concentration variation of a collected catalyst...
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JP2014019676A |
To provide a method for manufacturing an aromatic carboxylic acid except a terephthalic acid, having a catalyst collection process using a pyridine ring containing chelating resin and capable of immediately simply analyzing concentration...
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JP5402924B2 |
Provided is a process for the production of high-purity trimellitic acid including subjecting a dimethylbenzaldehyde and/or an oxidized derivative of the dimethylbenzaldehyde to liquid-phase oxidation with molecular oxygen in an aqueous ...
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JP5403505B2 |
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JP2014005226A |
To provide a process for producing terephthalic acid capable of recycling a large amount of waste water generated during producing terephthalic acid as industrial water (cooling water) and/or process water and capable of reducing a volum...
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JP2013253062A |
To provide a method for reducing halogen content in an aromatic compound readily and at low cost.An organic halogen compound contained in an aromatic compound is made to react with an alkaline aqueous solution at a reaction temperature o...
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JP2013241434A |
To provide a method for producing 9,9-bis(carboxyaryl)fluorenes and esters thereof in a high yield.A compound expressed by formula (1) is allowed to react with carbon monoxide in the presence of a transition metal catalyst, water and/or ...
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JP2013542067A |
Methods and apparatus for introducing a gas into the reaction zone of a reactor. Such methods and apparatus can more evenly distribute the gas throughout the reaction zone. Spargers for introducing a gas into the reaction zone of a react...
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JP5344684B2 |
To provide a method for dehalogenating an aromatic halide, which method has low risk, is economical, has little influence on humans and the environment, and allows the hydrodehalogenation reaction of the aromatic halide to proceed effici...
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JP5345266B2 |
To provide a method for efficiently producing a high-purity aliphatic dicarboxylic acid or aromatic carboxylic acid. A carboxylic acid is efficiently produced through a process (reaction process 1) for bringing a substrate (e.g. cyclohex...
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JP2013541530A |
In a process/system for the purification of aromatic dicarboxylic acid (ACA), crude ACA solids are slurried with water recycled from at least a filtration step in a feed preparation zone. Flash steam in vapour phase is supplied to the zo...
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JP5336198B2 |
A method of reducing or eliminating inflow of water to a dehydration tower using steam for separating water from a carboxylic acid from a reactor outlet gas produced in a reactor during oxidation of an aromatic compound in a carboxylic a...
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JP2013216622A |
To provide a metal complex usable as an adsorbent having superior gas adsorption characteristics.A metal complex consists of a dicarboxylic acid compound (I) represented by general formula (I) (wherein R1, R2, R3 and R4 may be the same a...
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JP5324082B2 |
To provide a method of preparing a 9,9-bis(carboxyaryl)fluorene and its ester at a high yield. The 9,9-bis(carboxyaryl)fluorene is prepared by causing a compound represented by formula (1) to react with carbon monoxide in the presence of...
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JP5318596B2 |
To provide a method for producing 2,6-naphthalene dicarboxylic acid. The method for producing the 2,6-naphthalene dicarboxylic acid comprises the following processes: (1) a process for reacting a dilower alkyl 2,6-naphthalene dicarboxyla...
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JP5318595B2 |
To provide a method for producing 2,6-naphthalene dicarboxylic acid. The method for producing the 2,6-naphthalene dicarboxylic acid comprises the following processes: (1) a process for reacting a dilower alkyl 2,6-naphthalene dicarboxyla...
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JP5309318B2 |
To provide a process for preparing an eater, a carboxylic acid, and an amide under mild conditions in a good yield using a 1,3-dicarbonyl compound as a raw material. The 1,3-dicarbonyl compound is reacted with an alcohol to produce an es...
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JP2013537877A |
A process for producing a carbon-comprising composite is provided, wherein a porous metal-organic framework comprising at least one at least bidentate organic compound coordinated to at least one metal ion is pyrolyzed under a protective...
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JP5305279B2 |
To obtain a porous metal complex that contains an aluminum ion and has sufficient hydrogen occlusion ability and to provide a method for producing the same. The porous metal complex contains a metal complex constituted of a coordinate bo...
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JP5305278B2 |
To provide a method for producing a porous metal complex obtaining the porous metal complex having high purity and high surface area. In the method for producing the porous metal complex comprising a three-dimensional porous skeletal str...
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JP5299992B2 |
To provide an oxidation reaction method for synthesizing an oxidation product from an alcohol by an environment-conscious oxygen oxidation reaction method using water as a medium, and its catalyst. In an oxidation reaction method using o...
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JP5296534B2 |
The present invention relates to a multi-stage crystallization process which comprises the steps of feeding a solution of terephthalic acid or a slurry (raw slurry) containing terephthalic acid partially precipitated to a first crystalli...
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JP2013184892A |
To provide a metallic compound having excellent performances in gas adsorption, gas occlusion and gas separation.There is provided a metallic compound including an aromatic polyvalent carboxylic acid anion which has at least three carbox...
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JP2013184948A |
To collect steam occurring during a crystallizing process as thermal energy and condensed water, and then effectively use it by circulating it within a producing process, in producing a purified aromatic dicarboxylic acid by hydropurifyi...
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JP5291459B2 |
A dispersion medium replacement apparatus for replacing a first dispersion medium in a starting slurry composed of the first dispersion medium and a solid particle with a second dispersion medium comprising a dispersion medium replacemen...
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JP2013534929A |
In a process for the separation of solid carboxylic acid fines from mother liquor that includes such fines, the mother liquor is fed to a settlement drum at above atmospheric pressure. The mother liquor having a lower concentration of ca...
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JP5282182B1 |
Provided is a pressurized multi-chamber rotary filter capable of filtering a slurry and recovering crystal components efficiently and with high purity. The pressurized multi-chamber rotary filter 10 of the present invention includes a ro...
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JP2013533219A |
A carbocatalyst for use in oxidation and polymerization reactions includes particles having a carbon and oxygen-containing material, such as catalytically-active graphene oxide and/or catalytically-active graphite oxide. In some cases, t...
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JP2013533272A |
The disclosure provides for catalytic multivariate metal organic frameworks and methods of use thereof.
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JP5262710B2 |
The present invention provides an industrially advantageous process for producing 5-phenylisophthalic acid, which process attains excellent selectivity and yield and also realizes recovery and reuse of a catalyst. The process for produci...
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JP5254001B2 |
A process and apparatus for manufacture of aromatic carboxylic acids comprises a liquid phase oxidation of aromatic hydrocarbon feed materials and treatment of a high pressure off-gas from the liquid phase oxidation to separate water and...
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JP5250997B2 |
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JP2013530141A |
In a process for the separation and drying of crude carboxylic acid crystals from a slurry in a solvent, the slurry is supplied to a filter operating at pressure and at a temperature above the atmospheric boiling point of the solvent. A ...
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JP5245208B2 |
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JP5244399B2 |
One aspect of the present invention relates to ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in various transition-metal-catalyzed carbon-heteroatom and c...
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JP2013529674A |
In a process for the separation of carboxylic acid from a slurry in a solvent, a slurry with crystals of carboxylic acid is supplied to a filter operating at pressure and at a temperature above the atmospheric boiling point of the solven...
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JP5239261B2 |
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JP5239995B2 |
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JP5239667B2 |
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JP5234976B2 |
To provide a novel polybutylene terephthalate decomposition method capable of industrially advantageously obtaining terephthalic acid and tetrahydrofuran from polybutylene terephthalate. In the environment-harmonization type decompositio...
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JP5228165B2 |
The present application relates to novel cyclopropylacetic acid derivatives, to processes for their preparation, to their use for the treatment and/or prophylaxis of diseases and to their use for preparing medicaments for the treatment a...
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JP5227176B2 |
The invention relates to mixed oxide catalysts for the catalytic gas-phase oxidation of olefins and methylated aromatics, processes for producing the catalysts and the reaction with air or oxygen in the presence of inert gases in various...
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JP5219450B2 |
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JP5222632B2 |
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JP5219451B2 |
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JPWO2011105521A1 |
To provide a metal complex having excellent gas adsorption performance, gas storage performance and gas separation performance. The following general formula (I); [Chemical 1] (In the formula, R1~ R4Is as described in the specification. ...
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JP5213242B2 |
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JP2013116867A |
To provide a method for producing high quality isophthalic acid through liquid phase oxidation reaction, by reducing generation amount of a byproduct having a specific structure causing problems when increasing recycling rate of mother l...
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