619-81-8

Usage

Uses

Used in Polymer Resin and Coating Production:
cis-1,4-Cyclohexanedicarboxybic acid is used as a key component in the production of polymer resins and coatings, contributing to their enhanced performance and durability.
Used in Adhesive and Sealant Manufacturing:
In the adhesive and sealant industry, cis-1,4-Cyclohexanedicarboxybic acid is utilized as a critical ingredient, improving the bonding strength and flexibility of these products.
Used in Plasticizer Production:
cis-1,4-Cyclohexanedicarboxybic acid is employed as a plasticizer, enhancing the flexibility and workability of various plastic materials.
Used as a Corrosion Inhibitor:
In industrial settings, cis-1,4-Cyclohexanedicarboxybic acid serves as an effective corrosion inhibitor, protecting metal surfaces from degradation and extending their service life.
Used in Pharmaceutical and Agrochemical Synthesis:
cis-1,4-Cyclohexanedicarboxybic acid is used as a building block in the synthesis of various pharmaceuticals and agrochemicals, contributing to the development of new and improved products.
Used in Consumer Product Formulation:
cis-1,4-Cyclohexanedicarboxybic acid is found in some consumer products such as paints, varnishes, and automotive coatings, where it enhances the performance and appearance of these products.

Upstream product

• 105-08-8 bis-1,4-(hydroxymethyl)cyclohexane 
• 75-03-6 ethyl iodide 
• 120-61-6 1,4-benzenedicarboxylic acid dimethyl ester 
• 3919-11-7 cis-Cyclohex-2-ene-1,4-dicarboxylic acid 
• 636-09-9 diethyl terephthalate 
• 7647-01-0 hydrogenchloride 
• 6550-96-5 cis-cyclohexane-1,4-dicarbonitrile 
• 2716-23-6 bicyclo[2.2.2]octan-2-one 
• 7697-37-2 nitric acid 
• 100-21-0 terephthalic acid 
• 64-19-7 acetic acid 
• 22646-79-3 dimethyl 1-cyclohexen-1,4-dicarboxylate 
• 10028-70-3 disodium terephthalate 
• 931-64-6 norbornene 

Downstream Products

• 1659-95-6 dimethyl 1,3-cyclohexadiene-1,4-dicarboxylate 
• 1234477-64-5 C₂₆H₃₈FN₃O₆ 
• 1229182-33-5 p-cyclohexylene-bis[N,N'-bis(2,6-diisopropylphenyl)formamidine] 
• 1229182-34-6 p-cyclohexylene-bis[N,N'-bis(2,6-dimethylphenyl)formamidine] 
• 94-60-0 dimethyl 1,4-cyclohexane dicarboxylate 
• 10534-13-1 cyclohexane-1,4-dicarbonitrile 
• 2549-93-1 1,4-bis-(aminomethyl)cyclohexane 

Relevant academic research and scientific papers

PRODUCTION METHOD FOR 1,4-CYCLOHEXANEDICARBOXYLIC ACID DERIVATIVE, 1,4-DICYANOCYCLOHEXANE AND 1,4-BIS(AMINOMETHYL)CYCLOHEXANE

A production method for producing a 1,4-cyclohexanedicarboxylic acid derivative, involves subjecting an aqueous ammonia solution of 1,4-cyclohexanedicarboxylic acid to heat concentration, thereby precipitating a 1,4-cyclohexanedicarboxylic acid derivative as a crystal.

Highly-efficient Ru/Al-SBA-15 catalysts with strong Lewis acid sites for the water-assisted hydrogenation of: P -phthalic acid

Ruthenium nanoparticles supported onto aluminum-doped mesoporous silica catalysts (Ru/Al-SBA-15) are fabricated using hydrothermal and impregnation methods for catalysis application. The Ru/Al-SBA-15-3 catalyst at a Si/Al molar ratio of 3 exhibited excellent catalytic performance for the hydrogenation of p-phthalic acid with high conversion efficiency (100.0%) and cis-isomer selectivity (84.0%) in water. Moreover, this system displays exceptional stability and recyclability through preserving the conversion efficiency, as well as a cis-isomer selectivity of 90.2 and 83.3%, respectively, after reusing it fourteen times. Such an exceptional system can also be ideal for the hydrogenation of aromatic dicarboxylic acids and their ester derivatives in water. Strong Lewis acid sites due to doped Al species play significant roles in the hydrogenation reaction. Moreover, isotope labeling studies indicated that water molecules effectively participated in the hydrogenation reaction. Hydrogen and water contributed half of the hydrogen atoms for this hydrogenation reaction. In the end, a plausible mechanistic pathway for the hydrogenation of p-phthalic acid using the Ru/Al-SBA-15-3 catalyst in water is proposed.

Catalyst for aqueous phase catalytic hydrogenation of phthalic acids and ester derivatives thereof and preparation method and application thereof

The invention discloses a catalyst for aqueous phase catalytic hydrogenation of phthalic acids and ester derivatives thereof, a preparation method and application thereof. The catalyst adopts an acidic composite carrier of aluminum-doped ordered mesoporous silica, and combines specific Si/Al, ordered mesoporous size and active component loading capacity to realize catalytic hydrogenation of phthalic acids and ester derivatives thereof in the water phase to prepare corresponding cyclohexanedicarboxylic acids and derivatives thereof. The catalyst is low in raw material cost, simple in preparation process and lower in noble metal loading capacity, wherein the catalytic reaction temperature is 40-100 DEG C, the hydrogen pressure is 3-6MPa, the reaction time is 0.2-3h, the conditions are mild,the solvent is pollution-free and the catalytic efficiency is high.

POWDERY 1,4-CYCLOHEXANEDICARBOXYLIC ACID

An object of the present invention is to provide a powder of high-purity 1,4-cyclohexanedicarboxylic acid with excellent powder flowability. The invention provides a powder of high-purity 1,4-cyclohexanedicarboxylic acid having particle size distributions (volume basis) such that D10 is within a range of 5 to 55 μm, D50 is within a range of 40 to 200 μm, and D90 is within a range of 170 to 800 μm; and having an aerated bulk density of 0.4 to 0.8 g/cm3, a packed bulk density of 0.5 to 1.0 g/cm3, and a compressibility of 10 to 23%.

Catalytic hydrogenation products of aromatic and aliphatic dicarboxylic acids

Hydrogenation of aromatic dicarboxylic acids gave 100 % selectivity to respective cyclohexane dicarboxylic acid with 5 % Pd/C catalyst. 5 % Ru/C catalyst was observed to give over hydrogenation products at 493 K and at lower temperature (453 K) the selectivity for cyclohexane dicarboxylic acids was increased. Hydrogenation of phthalic acid with Ru-Sn/Al2O3 catalyst was observed to give phthalide instead of 1,2-benzene dimethanol or 2-hydroxy methyl benzoic acid. Ru-Sn/Al2O3 catalyst selectively hydrogenated the carboxylic group of cyclohexane dicarboxylic acids to give cyclohexane dimethanol. Use of proper catalysts and reaction conditions resulted in desired products.

Method for synthesizing cyclohexanecarboxylic acid by catalyzing hydrogenation of benzene rings through rubidium-gallium-loaded catalytic material

The invention relates to the fine chemical engineering field and particularly relates to a method for synthesizing cyclohexanecarboxylic acid by catalyzing hydrogenation of benzene rings through a rubidium-gallium-loaded catalytic material. According to the method, aromatic ring carboxylic acid is catalyzed by virtue of the rubidium-gallium-loaded catalytic material in deionized water and generates selective addition reaction with hydrogen at a low temperature and a relatively low pressure so as to generate cyclohexanecarboxylic acid; the reaction temperature is low, the reaction pressure is lower than that in the prior art, no organic solvent is adopted, the side reactions are few, and the product is conveniently purified, and the method is suitable for industrial production; and the prepared rubidium-gallium-loaded catalytic material can be recycled, is high in catalytic activity and strong in selectivity and is a very promising novel catalytic material.

METHOD FOR PRODUCING 1,4-DICYANOCYCLOHEXANE, 1,4-BIS(AMINOMETHYL)CYCLOHEXANE AND 1,4-CYCLOHEXANEDICARBOXYLIC ACID

A method for producing 1,4-dicyanocyclohexane, having a step of obtaining 1,4-dicyanocyclohexane by subjecting a heated concentrate of an aqueous ammonia solution of 1,4-cyclohexanedicarboxylic acid to a cyanation reaction.

Synthesis of 1,4-Cyclohexanedimethanol, 1,4-Cyclohexanedicarboxylic Acid and 1,2-Cyclohexanedicarboxylates from Formaldehyde, Crotonaldehyde and Acrylate/Fumarate

Valuable polyester monomers and plasticizers—1,4-cyclohexanedimethanol (CHDM), 1,4-cyclohexanedicarboxylic acid (CHDA), and 1,2-cyclohexanedicarboxylates—have been prepared by a new strategy. The synthetic processes involve a proline-catalyzed formal [3+1+2] cycloaddition of formaldehyde, crotonaldehyde, and acrylate (or fumarate). CHDM is produced after a subsequent hydrogenation step over a commercially available Cu/Zn/Al catalyst and a one-pot hydrogenation/oxidation/hydrolysis process yields CHDA, whereas 1,2-cyclohexanedicarboxylate is obtained by a Pd/C-catalyzed tandem decarbonylation/hydrogenation step.

Preparation method for 1,4-cyclohexanedimethanol or 1,4-cyclohexanedicarboxylic acid

The invention relates to a preparation method for 1,4-cyclohexanedimethanol or 1,4-cyclohexanedicarboxylic acid. The preparation method for 1,4-cyclohexanedimethanol comprises the following steps: step 1, subjecting crotonaldehyde, formaldehyde and acrylate to a D-A cycloaddition reaction under base catalysis so as to produce ester group-substituted cyclohexene formaldehyde; and step 2, subjectinga resulting product to complete hydrogenation under the action of a transition metal catalyst to produce 1,4-cyclohexanedimethanol. The preparation method for 1,4-cyclohexanedicarboxylic acid comprises the following steps: step 1, subjecting crotonaldehyde, formaldehyde and acrylate to a D-A cycloaddition reaction under base catalysis so as to produce ester group-substituted cyclohexene formaldehyde; step 2, subjecting a double bond on the resulting product to hydrogenation so as to form an ester group-substituted cyclohexane formaldehyde or cyclohexane methanol; step 3, subjecting cyclohexane formaldehyde or cyclohexane methanol or a mixture thereof to a one-step oxidation reaction so as to form ester group-substituted cyclohexanecarboxylic acid; and step 4, carrying out hydrolysis on aresulting product of the previous step so as to produce 1,4-cyclohexanedicarboxylic acid. The invention provides novel processes for preparing the fine chemicals consisting of 1,4-cyclohexanedimethanol and 1,4-cyclohexanedicarboxylic acid from lignocellulose-based platform chemicals.

PREPARATION METHOD OF 1,4-CYCLOHEXANEDICARBOXYLIC ACID AND PREPARATION METHOD OF 1,4-CYCLOHEXANEDIMETHANOL

The present invention relates to a method for producing 1,4-cyclohexanedicarboxylic acid and a method for producing 1,4-cyclohexanedimethanol. According to the present invention, the method ensures high conversion rates by allowing most of the reactants to participate in a reaction, improves economic feasibility and efficiency in the reaction by simplifying a reaction process, achieves high selectivity by minimizing by-products within a short period of time, and stably controls flow rate of reactants and products. To this end, the method for producing 1,4-cyclohexanedicarboxylic acid includes a step of bringing terephthalic acid and hydrogen gas into contact via counter current in the presence of a metal catalyst which is immobilized on a silica carrier and contains a palladium (Pd) compound.COPYRIGHT KIPO 2018