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Matches 1 - 50 out of 9,758

Document Document Title
WO/2021/063768A1
The present invention relates to an improved process for the production of alkanesulfonic acids.  
WO/2021/063730A1
The present invention relates to an improved process for manufacturing of alkanesulfonic acids.  
WO/2021/056811A1
Disclosed are an imine salt derivative and a preparation method therefor, and a preparation method for nicotine. The preparation method for nicotine comprises the following steps: adding an imine salt derivative having a general formula ...  
WO/2021/057597A1
Provided are a bissulfonate compound, a preparation method therefor, an electrolytic solution and an energy storage device. The bissulfonate compound has a structure of (I) and is applied as an additive to an energy storage device, so th...  
WO/2021/052272A1
The present invention relates to the field of magnolol derivatives, and specifically relates to magnolol, a preparation method therefor, and the use thereof. Disclosed is a magnolol derivative having a structure as shown in formula (I). ...  
WO/2021/047588A1
Disclosed is a tall oil fatty acid imidazoline sulfonate surfactant. A main component of the surfactant has a following structural formula: (I), wherein R is tall oil fatty acid alkyl. An intermediate of the tall oil fatty acid imidazoli...  
WO/2021/049492A1
[Problem] A purpose of the present invention is to provide: a higher secondary alcohol alkoxylate adduct that when used as a surfactant, exhibits excellent cleaning power, and does not have unpleasant odor and is free from turbidity and ...  
WO/2021/027237A1
The present invention relates to a method for preparing a supercritical carbon dioxide thickener for the exploitation of tight oil and gas reservoirs. The method can solve the problem of oil and gas deposits being damaged as a result of ...  
WO/2021/023582A1
Process for separating anhydrous methanesulfonic acid from a reaction mixture comprising methanesulfonic acid and sulfuric acid by distillation with at least three functional steps and the use of said methanesulfonic acid.  
WO/2021/023583A1
A process for the manufacturing of alkanesulfonic acid by reaction of an alkane with an anhydride in the presence of sulfuric acid and a starter at ambient temperature or higher and under pressure.  
WO/2021/021758A1
A surfactant formulation comprised of: a sulfosuccinate in the range of 7 to 30 percent (active); an alkylpolyglucoside in the range of 5 to 30 percent (active); water in the range of 20 to 80 percent (active); and an optional preservative.  
WO/2021/020481A1
The present invention is a method for producing an intermediate of iguratimod derivatives, a method for producing iguratimod, iguratimod having a novel crystal structure, and a method for producing the same. The present invention can rai...  
WO/2021/019862A1
The present invention provides a method for producing an aqueous tin methanesulfonate solution by dissolving tin (II) oxide in an aqueous methanesulfonic acid solution, wherein if A is the number of moles of the tin (II) oxide and B is t...  
WO/2021/012721A1
Disclosed in the present invention are a naphthalenesulfonamide compound, a preparation method, and an application. The naphthalenesulfonamide compound provided by the present invention can interfere with Keap1-Nrf2 binding and activate ...  
WO/2021/011440A1
Disclosed herein is a method for the preparation of diarylmethane dyes and triarylmethane dyes, such as Isosulfan Blue, using electrochemistry. Further disclosed is Isosulfan Blue prepared from a process employing electrochemistry, compo...  
WO/2021/008516A1
A phenyl-containing compound, an intermediate thereof, a preparation method therefor and an application thereof. Provided is a compound represented by formula I or a pharmaceutically acceptable salt thereof, where R 1, R 2, R 3, R 4 and ...  
WO/2021/004897A1
The present invention refers to a method for reducing SO3 concentration in a mixture comprising methane sulfonic acid and SO3, the method comprising: i. providing a mixture comprising methane sulfonic acid and SO3, ii. determining the am...  
WO/2021/005086A1
The present application refers to a method for reducing the SO3 concentration in a mixture comprising SO3 and a sulfonic acid R-SO3H, wherein R represents a moiety comprising at least 1 C-atom except for CH3, the method comprising: i. pr...  
WO/2021/005508A1
A method for producing tris(halosulphonyl)methane or salts of same is proposed. The method comprises reacting methanetrisulphonic acid or salts of same with an anhydride-forming agent in basic or neutral conditions, thus producing a mixe...  
WO/2021/000429A1
Disclosed in the present invention is a catalyst for preparing high purity taurine. The catalyst is N,N-disubstituted aminoethanesulfonic acid, and has a structure as shown in general formula I, wherein R1 and R2 are independently one se...  
WO/2020/259508A1
The present invention relates to the field of the production of fine chemicals, and disclosed is a method for synthesizing a sun-screening agent intermediate terephthalylidene dicamphor sulfonic acid, comprising the following steps: diss...  
WO/2020/258542A1
Provided is a method for producing taurine including: providing a reaction solution comprising alkali metal taurinate and/or alkali metal isethionate, passing at least a portion of the reaction solution through a column of basic anion ex...  
WO/2020/257930A1
Stable formulations of alkyl benzidine compounds and methods of making and using same. A short chain diol and an alkyl benzidine compound are combined together in solution at low pH and the solution is heated with moderate heat. The stab...  
WO/2020/256862A1
Compositions comprising one or more amphiphilic compounds formed from vinylidene olefins may comprise: a reaction product of one or more vinylidene olefins, in which the reaction product comprises a hydrophobic portion and a hydrophilic ...  
WO/2020/255585A1
The present invention provides a method for purifying a compound that generates an acid when irradiated with active light or radiation, said method being capable of reducing the content of metal impurities, while having excellent recover...  
WO/2020/256852A1
Compositions comprising one or more amphiphilic compounds formed from lightly branched olefins may comprise: a reaction product of one or more lightly branched olefins, in which the reaction product comprises a hydrophobic portion and a ...  
WO/2020/238942A1
Provided is a method for preparing sodium taurate as a taurine intermediate. The method comprises the following steps: providing sodium hydroxyethyl sulfonate and an ammonia source; and placing the sodium hydroxyethyl sulfonate and the a...  
WO/2020/238943A1
The present invention provides an ammonolysis reaction system, comprising: an ammonolysis reactor, which is a vessel for an ammonolysis reaction, the ammonolysis reaction using ammonia as an aminating agent; an ammonia separation device ...  
WO/2020/003147A3
A hydrophilic polymer comprising pendent groups of the formula I: Wherein: W is independently selected from –OH, -COOH, -SO3H, -OPO3H, -O-(C1-4alkyl), -O-(C1-4alkyl)OH, -O-(C1-4alkyl)R2, -O-(C2H5O)qR1 –(C=O)-O-C1-4alkyl and –O-(C=O...  
WO/2020/234537A1
The present invention relates to a process for preparing a compound having the following formula (II): wherein R1 represents F or a linear or branched alkyl radical, substituted with at least one fluorine atom, said process comprising a ...  
WO/2020/229757A1
The present invention relates to a continuous process for filtering a suspension of 2-acrylamido-2-methylpropane sulfonic acid crystals by means of a pressurized rotary filter. The invention also relates to the polymers obtained with 2-a...  
WO/2020/230800A1
The present application discloses a method and a compound useful in the preparation of a compound represented by formula (XI). Furthermore, the present application discloses a compound that is represented by formula (XI) and that has few...  
WO/2020/216735A1
The invention relates to a process for preparing bis(fluorosulfonyl) imide, comprising the steps of: i) providing a stream A1 containing hydrofluoric acid and providing a reactor containing a liquid phase A2 that contains bis(halosulfony...  
WO/2020/218316A1
Provided is a method for producing an arylsulfonic acid ester compound which comprises: a first step, in which an arylsulfonic acid of formula (1) (wherein A is an aromatic group, B is an aromatic group substituted by a halogen atom, n i...  
WO/2020/216736A1
The invention relates to a process for preparing bis(fluorosulfonyl) imide, comprising the steps of: i) providing a stream A1 containing hydrofluoric acid; providing a reactor containing a liquid phase A2 that contains bis(halosulfonyl) ...  
WO/2020/212298A1
The present application refers to a process for providing anhydrous alkane sulfonic acid in purified form.  
WO/2020/212299A1
The present invention relates to a process for manufacturing of anhydrous methanesulfonic acid (MSA) and to methanesulfonic acid manufactured by said process and its uses.  
WO/2020/214560A1
A method of producing purified bis(fluorosulfonyl) imide includes providing a liquid mixture including bis(fluorosulfonyl) imide and fluorosulfonic acid and then contacting the liquid mixture with gaseous ammonia. The gaseous ammonia rea...  
WO/2020/197917A1
The present invention provides novel crystalline salt forms of 6,6-dimethyl-2-{2-[(1-methyl-1H-pyrazol-5-yl)amino]pyrimidin -4-yl}-5-[2-(morpholin-4-yl)ethyl]-5,6-dihydro-4H-thieno[2,3 -c]pyrrol-4-one.  
WO/2020/187893A1
The present invention refers to a method for the production of alkane sulfonic acid, in which SO3 and an alkane are contacted with each other in the presence of a solvent, said solvent does constitute a superacid and the combination of s...  
WO/2020/187155A1
Use of an apocynin dimer analogue derivative in preparing a medicament or a health care product for preventing and treating Parkinson's disease. The structure of the apocynin dimer analogue derivative is as shown in formula I. The apocyn...  
WO/2020/187902A1
The present invention refers to a method for the production of haloalkane sulfonic acid, in which SO3 and an haloalkane are contacted with each other in the presence of a solvent, said solvent does not constitute a superacid and the comb...  
WO/2020/187901A1
The present invention refers to a method for the production of haloalkanesulfonic acid, in which SO3 and an haloalkaneare contacted with each other in the presence of a solvent, said solvent does constitute a superacid and the combinatio...  
WO/2020/187894A1
The present invention relates to a method for the purification of alkanes, especially methane, wherein an alkane comprising impurities, especially methane, is reacted with an active compound, optionally in the presence of sulfur trioxide...  
WO/2020/187897A1
The present invention refers to a method for the production of alkane sulfonic acid, in which SO and an alkane are contacted with each other in the presence of a solvent, said solvent does not constitute a superacid and the combination o...  
WO/2020/185513A1
Processes for making reactive surfactants are disclosed. In one such process, a fatty epoxide, a glycidyl ether, or a combination thereof is reacted with an olefin-functional nucleophile to produce an olefin-functional hydrophobe. The ol...  
WO/2020/159007A1
The present invention relates to a method for synthesizing acyloxybenzenesulfonate, which is a bleaching activator, from an aqueous solution at a low temperature. The production unit cost can be reduced due to the production being from a...  
WO/2020/003152A3
A polymer having a backbone comprising a polyhydroxylated polymer cross linked by a C3 to C8 diacid.  
WO/2019/212835A3
Improved initiators, solvents, and processing equipment and methods are disclosed for improving the yields and efficiency of a manufacturing process which uses a radical chain reaction to convert methane (CH4), which is a gas under any n...  
WO/2020/144030A1
The present invention relates to a process for the synthesis of organosulfate salts of amino acid esters comprising the steps of reacting at least one lactam with at least 3 carbon atoms in the lactam ring with sulfuric acidin an aqueous...  

Matches 1 - 50 out of 9,758