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Searching: furfural





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Patent # Description
US-1,040,7547 Methods of producing compounds from 5-(halomethyl)furfural
Provided herein are methods of producing compounds, such as cyclohexanone, hexanediamine, hexanediol, hexamethylenediamine, caprolactam and nylon, from...
US-1,039,9953 Preparation of furan fatty acids from 5-(chloromethyl)furfural
The present invention provides methods of making furfural fatty acids from (chloromethyl)furfural. The present invention also provides furfural fatty acids and...
US-1,039,2715 Electrochemical reductive amination of furfural-based molecules
Electrochemical cells for the reductive amination of furfural-based molecules are provided. Also provided are methods of using the electrochemical cells to...
US-1,039,2358 Oxidation chemistry on furan aldehydes
Provided herein are methods of producing halomethylfuroic and acyloxymethylfuroic acid and ester compounds from furfural starting compounds. For example,...
US-1,038,5033 Process for preparing furan-2,5-dicarboxylic acid
A process for preparing furan-2,5-dicarboxylic acid is disclosed. The process includes the following steps: preparing or providing a starting mixture including...
US-1,035,1886 Methods for high yield production of furans from biomass sugars at mild operating conditions
Facile methods for high-yield furfural and HMF production from biomass sugars are described. The methods generally involve converting the biomass sugars in high...
US-1,035,1543 Process for the preparation of a furfural derivative
A furfural derivative having the chemical formula (1) ##STR00001## wherein R represents hydrogen, an alkyl group or an acyl group, is prepared in a process,...
US-1,028,0437 Method for producing ethanol
A method for producing ethanol, which is a method for producing ethanol from a saccharide obtained from biomass, includes a step of adding an additive solution...
US-1,026,6633 Formaldehyde-free phenolic resins, downstream products, their synthesis and use
A resin composition containing the reaction product of a 5-hydroxymethyl furfural (HMF) produced in-situ from e.g., glucose and a phenolic compound. Phenolic...
US-1,026,6508 Process for the preparation of a furfural derivative comprising neutralizing an acid reaction mixture
A furfural derivative having the chemical formula (1) ##STR00001## where R represents hydrogen, an alkyl group or an acyl group, is prepared in a process,...
US-1,025,9797 Process for preparing a mixture comprising 5-(hydroxymethyl) furfural and specific HMF esters
Provided herein is a process for preparing a mixture including 5-(hydroxy-methyl)furfural (HMF) and one or more HMF esters of formula (I), the process including...
US-1,025,9789 Process for the preparation of 4-alkoxy-3-acetoxypicolinic acids
4-Alkoxy-3-hydroxypicolinic acids may be conveniently prepared from 4,6-dibromo-3-hydroxypicolinonitrile in a series of chemical steps selected from bromo...
US-1,025,3009 One-step production of furfural from biomass
Methods and processes for the production of valuable organic products and alcohols from biomass using a single-step dehydration extraction process having...
US-1,025,3008 Method for producing furan compound and furfural composition
The present invention is aimed to provide an industrially advantageous method for producing a furan compound, in which a furan compound can be efficiently...
US-1,025,2969 Methods for production of aromatic dicarboxylic acids and derivatives thereof
Provided are methods for the production of isophthalic acid (IP A) and derivatives thereof. The methods are based on the addition of beta propiolactone to...
US-1,024,6477 Isomerisation of C4-C6 aldoses with zeolites
The present invention relates to isomerization of C4-C6 aldoses to their corresponding C4-C6 ketoses. In particular, the invention concerns isomerization of...
US-1,017,3994 Conversion of biomass
Biomass feedstocks (e.g., plant biomass, animal biomass, and municipal waste biomass) are processed to produce useful products, such as fuels. For example,...
US-1,013,8218 Process for preparing furfural from biomass
Furfural is produced from biomass material containing pentosan, in high yields, in a production process comprising treating the biomass with a solution...
US-1,012,5109 Method for producing furan compound and furfural composition
The present invention is aimed to provide an industrially advantageous method for producing a furan compound, in which a furan compound can be efficiently...
US-1,011,2916 HMF production from glucose in ionic liquid media
Methods of converting lignocellulosic derivatives form 5-hydroxymethyl furfural (HMF) in ionic liquids are provided herein. Glucose is enzymatically converted...
US-1,010,0145 Amorphous polyester from bio-based bis-furan assembly
Polymers, including polyesters and polycarbonates comprising residue of bis-furan diol, which is produced from renewable furfural feedstock, and methods of...
US-1,009,3639 Process for preparing furfural from biomass
Furfural is produced from biomass material containing pentosan, in high yields, in a production process comprising treating the biomass with a solution...
US-1,009,3638 Utilizing a multiphase reactor for the conversion of biomass to produce substituted furans
The present disclosure provides methods to produce substituted furans (e.g., halomethylfurfural, hydroxymethylfurfural, and furfural), by acid-catalyzed...
US-1,008,7160 Process for the manufacture of furural and furfural derivatives
The present invention provides a process for preparing furfural and furfural derivatives using a furfural-derived solvent.
US-1,008,1611 Method for acid-catalyzed acylation of the reduction products of 5-hydroxymethyl furfural
An improved process for acid-catalyzed acylation using water-tolerant Lewis acid catalysts is described. The method involves reacting a reduction products of...
US-1,005,3441 Methods for purifying 5-(halomethyl)furfural
The present disclosure provides methods for purifying a 5-(halomethyl)furfural composition, including 5-(chloromethyl)furfural, at operating conditions that...
US-1,004,0774 Preparation of Furfural using mixed solvents
Processes for the preparation of furfural from a xylose containing feedstock and more particularly to an elevated temperature conversion of a xylose containing...
US-1,003,0001 Process for the production and isolation of 5-hydroxymethylfurfural
The present invention relates to a process for the synthesis of 5-hydroxymethyl furfural (HMF) comprising the steps of: 1) dehydrating at least one saccharide...
US-1,001,7486 Conversion of fructose-containing feedstocks to HMF-containing product
The present invention relates generally to processes for converting fructose-containing feedstocks to a product comprising 5-(hydroxymethyl)furfural (HMF) and...
US-1,001,1579 Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidation
Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing at least...
US-1,001,1577 Methods for producing 5-(halomethyl)furfural
The present disclosure provides methods to produce 5-(halomethyl)furfural, including 5-(chloromethyl)furfural, by acid-catalyzed conversion of C6 saccharides,...
US-1,000,5749 Closed-loop production of furfural from biomass
Methods and processes for the production of valuable organic products and alcohols from biomass material using a closed-loop process having numerous advantages...
US-9,982,317 Systems and methods for acid recycle
Methods and systems for pretreating lignocellulosic biomass are disclosed. An acid solution between 1% to 1.6% sulfuric acid is applied to the biomass. The...
US-9,976,194 Sugar compositions
A sugar composition comprising at least 40% dissolved solids in an aqueous solution having a viscosity at least 10% lower than a 42 DE (Dextrose Equivalents)...
US-9,976,160 Method of producing sugar liquid
A method of producing a sugar liquid from biomass includes decomposing a fermentation inhibitor contained in a sugar aqueous solution obtained from biomass with...
US-9,944,614 Production of furfural from xylose
Described is a method for producing furfural from one or more substances selected from the group consisting of xylose, oligosaccharides comprising xylose units...
US-9,885,119 Electrochemical and photoelectrochemical reduction of furfurals
Electrochemical cells and photoelectrochemical cells for the reduction of furfurals are provided. Also provided are methods of using the cells to carry out the...
US-9,884,834 Combined levulinic acid and furfural production from biomass
A process is provided for improved levulinic acid production form biomass, wherein furfural is recovered from vapor flow from the levulinic acid production...
US-9,828,615 Methods for high yield production of furans from biomass sugars at mild operating conditions
Facile methods for high-yield furfural and HMF production from biomass sugars are described. The methods generally involve converting the biomass sugars in high...
US-9,783,517 Method for synthesis of an output including diesters of 5-methyl-2-furoic acid
The present invention describes methods and apparatuses for the synthesis of 5-(chloromethyl)-2-furaldehyde (CMF) from saccharides in pure or crude form, the...
US-9,783,516 Reduction of HMF ethers with metal catalyst
Methods of making reduced derivatives of hydroxymethyl furfural using metal catalysts are described. The derivatives may have tetrahydrofuran or furan nucleus...
US-9,783,473 Process for production of hexamethylenediamine from carbohydrate-containing materials and intermediates therefor
Processes are disclosed for the conversion of a carbohydrate source to hexamethylenediamine (HMDA) and to intermediates useful for the production of...
US-9,718,798 Solid forms of 5-(halomethyl)furfural and methods for preparing thereof
Provided are solid forms of 5-(halomethyl)furfural, including a crystalline form of 5-(chloromethyl)furfural. Provided are also methods for preparing solid...
US-9,708,356 Method for manufacturing monosaccharides, oligosaccharides, and furfurals from biomass
The present invention provides a method for efficiently producing monosaccharides, oligosaccharides, and furfurals from biomass. A biomass is hydrolyzed under...
US-9,707,547 Oxidation catalyst for furfural compounds and applying method thereof
An oxidation catalyst includes a nickel-containing material, a manganese-containing material and a bromine-containing material, wherein the molar number of the...
US-9,683,328 Preparation of biofuels and other useful products such as 5-(hydroxymethyl)-furfural
Polycarbon biofuels may be made from feedstock such as wood waste, agricultural wastes and waste paper. The feedstock may be cooked under acidic conditions to...
US-9,637,463 Utilizing a multiphase reactor for the conversion of biomass to produce substituted furans
The present disclosure provides methods to produce substituted furans (e.g., halomethylfurfural, hydroxymethylfurfural, and furfural), by acid-catalyzed...
US-9,611,241 Conversion of fructose-containing feedstocks to HMF-containing product
The present invention relates generally to processes for converting fructose-containing feedstocks to a product comprising 5-(hydroxymethyl)furfural (HMF) and...
US-9,598,341 Process to prepare levulinic acid
The invention describes processes to prepare levulinic acid, formic acid and/or hydroxymethyl furfural from various biomass materials.
US-9,586,922 Methods for purifying 5-(halomethyl)furfural
The present disclosure provides methods for purifying a 5-(halomethyl)furfural composition, including 5-(chloromethyl)furfural, at operating conditions that...
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