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Matches 1 - 50 out of 112,625

Document Document Title
WO/2019/051597A1
The present disclosure relates to the formation of terephthalate esters of Formula (I) which are formed by the depolymerization of polyethylene terephthalate (PET) or poly(ethylene glycol-co-1,4-cyclohexanedimethanol terephthalate). The ...  
WO/2019/053438A1
A catalyst has a modified silica support and comprises a modifier metal, zirconium and/or hafnium, and a catalytic metal on the modified support. The catalyst has at least a proportion, typically, at least 25%, of modifier metal present ...  
WO/2019/047848A1
The invention belongs to the field of quality analysis and control of traditional Chinese medicine, and provides a method for separating eighteen components in a traditional Chinese medicine composition, comprising: (1) preparing the tra...  
WO/2019/049838A1
To increase the activity of a solid acid catalyst used for the production of an aliphatic carboxylic acid ester and thereby achieve efficiency enhancement in the production of an aliphatic carboxylic acid ester. In a method for producing...  
WO/2019/050830A1
A process for recovering methacrolein and methanol from methacrolein dimethyl acetal. The method comprises a step of contacting a mixture comprising methyl methacrylate and methacrolein dimethyl acetal with a strong acid ion exchange res...  
WO/2019/047493A1
The present invention relates to an ionic liquid, a cation of which contains a hexafluoroisopropylsulfonic acid group. The ionic liquid provided by the present invention introduces a hexafluoroisopropylsulfonic acid group into a cationic...  
WO/2019/050280A1
The present invention is a method for removing a primary alcohol in esterification, in comparison to the conventional methods, which comprises: a step of reacting, in an esterification reactor comprising a liquid exit line connected to a...  
WO/2019/050281A1
The present invention is a system for producing an ester composition, comprising an integrated reactor, a gas-liquid separation column, a refining unit, an alcohol storage tank, and a mixed alcohol separation column, and the purpose of t...  
WO/2019/045810A1
This disclosure relates to ester compounds formed from gamma-branched aliphatic alcohols, lubricating oil base stocks comprising such ester compounds, lubricating oil compositions comprising such ester compounds, and method of making suc...  
WO/2019/042807A1
The present invention relates to a process for producing optical molding materials on the basis of methyl methacrylate, wherein said MMA is produced by means of an optimized method and the molding materials exhibit in particular a very l...  
WO/2019/027965A8
Iron-based homogeneous catalysts, supported by pincer ligands, are employed in the catalytic dehydrocoupling of ethanol to produce ethyl acetate and hydrogen. As both ethanol and ethyl acetate are volatile materials, they can be readily ...  
WO/2019/044914A1
The present invention addresses the problem of providing a drug solution purification method with which it is possible to obtain a drug solution exhibiting excellent impairment suppression performance. The present invention also addresse...  
WO/2019/041063A1
An isooctyl acrylate esterification reaction system device. The device comprises a light alkane removal tower, a heavy alkane removal tower, a condenser, a reboiler, and a preheater. A preheater is provided on a feeding pipe at one side ...  
WO/2019/027962A8
A process for preparing a variety of secondary and tertiary alkyl formate esters via the coupling of methanol and secondary (or tertiary) alcohols. Iron-based catalysts, supported by pincer ligands, are employed to produce these formate ...  
WO/2019/041583A1
The present invention discloses a method for preparing p-hydroxycinnamate by using an ionic liquid to catalyze lignin. The method comprises the following steps: 1) preparation of a halogen metal salt ionic liquid: preparing the halogen m...  
WO/2019/038303A1
Method of recovering an organic acid from an aqueous solution (102), comprising extracting the organic acid dissolved in the aqueous solution into a water immiscible extraction phase (123) comprising an extractant for the organic acid, s...  
WO/2019/040596A1
In various embodiments, a resin composition includes a urethane (meth)acrylate, and an inhibitor package. The inhibitor package includes at least one nitroxide radical and at least one base. The base is selected from the group consisting...  
WO/2019/040561A1
A method of operating a moving bed reactor includes introducing feed water to be treated into an internal volume of a moving bed reactor, directing the water to be treated through a moving bed of treatment media within the internal volum...  
WO/2019/034577A1
The invention relates to a method for continuously producing an acrylic acid butyl ester H2C=CH-C(=O)OR, with R = n-butyl or isobutyl, wherein aqueous 3-hydroxypropionic acid is reacted under dehydrating and esterifying conditions in the...  
WO/2019/035715A1
The invention is directed to a method of electrochemically producing valeric acid. The method of the invention comprises - contacting a solution of levulinic acid with an anode and a cathode in an electrochemical cell; and - electrochemi...  
WO/2019/032126A1
Processes for preparing heteroatom containing cyclic dimers that result in increased production efficiency and reduced waste production.  
WO/2019/029491A1
Disclosed in the present invention is a preparation method for octyl (R)-2-(4-chloro-2-methylphenoxy) propionate which can be used as a root retarder, comprising: using L-ethyl lactate as a raw material to perform sulfonation with p-tolu...  
WO/2019/030294A1
The present invention relates to a novel method for the preparation of photoaligning polymer materials comprising aryl acrylic acid ester groups, to photoalignment compositions obtained by this process, to the use of the composition as o...  
WO/2019/030147A1
The present invention relates to oil compositions that are enriched in polyunsaturated fatty acids; compositions containing the oil compositions; and methods of making and using the oil compositions. The oil is preferably a microbial or ...  
WO/2019/029808A1
Suggested are 1,2-alkanediols of formula (I) HOCH2-CH(OH)-R1 in which R1 stands for an alkyl radical having 3 to 10 carbon atoms, said diols being substantially free of lactones and/or peroxides.  
WO/2019/026889A1
Provided is a novel monofunctional (meth)acrylate that is liquid at normal temperature and has a high refractive index. The novel monofunctional (meth)acrylate is represented by formula (1). (In the formula, R1 indicates a hydrogen atom ...  
WO/2019/027962A1
A process for preparing a variety of secondary and tertiary alkyl formate esters via the coupling of methanol and secondary (or tertiary) alcohols. Iron-based catalysts, supported by pincer ligands, are employed to produce these formate ...  
WO/2019/027959A1
Iron-based homogeneous catalysts, supported by pincer ligands, are employed in the catalytic dehydrocoupling of methanol to produce methyl formate and hydrogen. As both methanol and methyl formate are volatile materials, they can be read...  
WO/2019/026640A1
Provided are a catalyst precursor for producing a catalyst having a high yield of methacrylic acid, a catalyst, and a method for producing methacrylic acid and a methacrylic acid ester. A catalyst precursor including a heteropoly acid sa...  
WO/2019/027965A1
Iron-based homogeneous catalysts, supported by pincer ligands, are employed in the catalytic dehydrocoupling of ethanol to produce ethyl acetate and hydrogen. As both ethanol and ethyl acetate are volatile materials, they can be readily ...  
WO/2019/022886A1
A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting in a tubular reactor having at least four zones a mixture comprising methacrolein, methanol, oxygen and a base with a catalyst bed...  
WO/2019/022888A1
A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, where...  
WO/2019/020889A1
The present invention relates to the production of (meth)acrylic esters according to a continuous process by transesterification, and in particular to the purification of a crude reaction mixture comprising a C4-C12 (meth)acrylic ester w...  
WO/2019/022882A1
A method for preparing methyl methacrylate from methacrolein and methanol. The process comprises contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a nobl...  
WO/2019/022885A1
A method for preparing a heterogeneous catalyst. The method comprises steps of: (a) combining (i) a support, (ii) an aqueous solution of a noble metal compound and (iii) a C2-C18 thiol comprising at least one hydroxyl or carboxylic acid ...  
WO/2019/021993A1
A method for producing a bis-acyloxylated exomethylene compound represented by general formula (III), wherein a monoacyloxylated exomethylene compound represented by general formula (I), a carboxylic acid represented by general formula (...  
WO/2019/022889A1
A methode for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a nobl...  
WO/2019/022892A1
A method for preparing methyl methacrylate from methacrolein and methanol; said method comprising contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a nob...  
WO/2019/022887A1
A heterogeneous catalyst comprising a support and a noble metal. The catalyst has an average diameter of at least 200 microns and at least 90 wt% of the noble metal is in the outer 50% of catalyst volume.  
WO/2019/022883A1
A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal; where...  
WO/2019/022891A1
A method for preparing methyl methacrylate from methacrolein and methanol; said method comprising contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a catalyst bed of heterogeneous catalyst comprising a s...  
WO/2019/022890A1
A method for preparing methyl methacrylate from methacrolein and methanol; said method comprising contacting in a reactor a mixture comprising methacrolein, methanol and oxygen with a catalyst bed of heterogeneous catalyst comprising a s...  
WO/2019/022884A1
A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, where...  
WO/2019/016110A1
The invention discloses a method for preparation of 5-fluoro-2-methyl-3-nitrobenzoic acid and its methyl ester by conversion of 5-fluoro-2-methylbenzoic acid with fuming nitric acid and oleum and subsequent conversion with methanol.  
WO/2019/017490A1
Provided is a method for producing a pentenoic acid ester derivative using a biomass raw material, comprising step A for reacting the biomass raw material with a first alcohol in the presence of an acid catalyst to obtain a levulinic aci...  
WO/2019/011668A1
Preparation of the compounds of general formula I, among them misoprostol where R represents a straight‐ or branched‐chain C1-4 alkyl group by cuprate coupling of the vinyl cuprate of general formula II prepared by reacting the vinyl...  
WO/2019/007666A1
The invention relates to low-viscosity epoxy methacrylate compounds and to the use thereof for reducing the viscosity of reactive resins and for reducing the extrusion force of a reactive resin component containing the compounds and the ...  
WO/2019/007921A1
This invention relates to catalysts for polyesterol synthesis and the use of a di-thio compound as catalyst for the production of polyester-polyols.  
WO/2019/008561A1
Process for hydrogenating aromatic compounds over a solid catalyst in the presence of a hydrogen-containing gas comprising a first reactor operated in loop mode, a second reactor operated in straight pass, at least a part of the output o...  
WO/2019/000910A1
Disclosed is a method for preparing a 2-fluoroacrylate, using the following steps: (1) a vinyl ether with a structure as shown in formula A is mixed with monofluorodichloromethane to obtain a substituted cyclopropane compound with a stru...  

Matches 1 - 50 out of 112,625