Patent classifications
B01J27/12
Synthesis of N,N-Branched Sulfamoyl Fluoride Compounds Using Bismuth Trifluoride
Methods of producing N,N-branched sulfamoyl fluoride compounds of the formula F-S(O).sub.2-NR.sub.2 by contacting bismuth trifluoride with an N,N-branched sulfamoyl nonfluorohalide compound of the formula X-SO.sub.2NR.sub.2, wherein X=chlorine (Cl), bromine (Br), or iodine (I), and each R is, independently, a linear or branched alkyl, fluoroalkyl, alkenyl, fluoroalkenyl, alkynyl, or fluoroalkynyl with 1 to 12 carbon atoms, to fluorinate the N,N-branched sulfamoyl nonfluorohalide compound. This is a non-aqueous method, the purity of product is very high, and the desired product can be isolated in quantitative yield. The N,N-branched sulfamoyl fluoride compounds so produced are useful in various applications including as electrolyte solvents and additives in electrochemical devices, such as lithium batteries and capacitors, and in biological fields, among others.
Process for the hydroformylation of olefins using a cobalt precatalyst and a diphosphine ligand
Process for the hydroformylation of olefins using a cobalt precatalyst and a diphosphine ligand.
Process for the hydroformylation of olefins using a cobalt precatalyst and a diphosphine ligand
Process for the hydroformylation of olefins using a cobalt precatalyst and a diphosphine ligand.
Process for making an oxymethylene polymer
A process for making an oxymethylene polymer comprising polymerizing at least one compound capable of forming —CH.sub.2O— repeat units (monomer) in the presence of at least one ester of the general formula I (ester): R.sup.1—CO—O—R.sup.2 (I) wherein R.sup.1 can be hydrogen, wherein R.sup.1 and R.sup.2 are independently of each other linear or branched C.sub.1 to C.sub.10 alkyl C.sub.5 to C.sub.7 cycloalkyl —[R.sup.3-0-].sub.nR.sup.4 wherein R.sup.3 is a linear or branched C.sub.2 to C.sub.5 alkylen and R.sup.4 is a linear of branched C.sub.1 to C.sub.5 alkyl and n is an integer of from 1 to 5. and in the presence of at least one Lewis acid.
Process for making an oxymethylene polymer
A process for making an oxymethylene polymer comprising polymerizing at least one compound capable of forming —CH.sub.2O— repeat units (monomer) in the presence of at least one ester of the general formula I (ester): R.sup.1—CO—O—R.sup.2 (I) wherein R.sup.1 can be hydrogen, wherein R.sup.1 and R.sup.2 are independently of each other linear or branched C.sub.1 to C.sub.10 alkyl C.sub.5 to C.sub.7 cycloalkyl —[R.sup.3-0-].sub.nR.sup.4 wherein R.sup.3 is a linear or branched C.sub.2 to C.sub.5 alkylen and R.sup.4 is a linear of branched C.sub.1 to C.sub.5 alkyl and n is an integer of from 1 to 5. and in the presence of at least one Lewis acid.
METHOD FOR PRODUCING TRIFLUOROAMINE OXIDE
There is provided a method for producing trifluoroamine oxide. The method includes a step of preparing an intermediate product by simultaneously providing and reacting nitrogen trifluoride and nitrous oxide under the presence of a SbF.sub.5 reaction catalyst; and a step of producing trifluoroamine oxide by reacting the intermediate product with potassium fluoride. The step of reacting the intermediate product with potassium fluoride is performed under atmospheric pressure and room temperature.
METHOD FOR PRODUCING TRIFLUOROAMINE OXIDE
There is provided a method for producing trifluoroamine oxide. The method includes a step of preparing an intermediate product by simultaneously providing and reacting nitrogen trifluoride and nitrous oxide under the presence of a SbF.sub.5 reaction catalyst; and a step of producing trifluoroamine oxide by reacting the intermediate product with potassium fluoride. The step of reacting the intermediate product with potassium fluoride is performed under atmospheric pressure and room temperature.
Methods of preparing an aromatization catalyst
Catalysts and method of preparing the catalysts are disclosed. One of the catalysts includes a zeolite support, a Group VIII metal on the zeolite support, and at least two halides bound to the zeolite support, to the Group VIII metal, or to both, and can have an average crush strength greater than 11.25 lb based on at least two samples of pellets of the catalyst measured in accordance with ASTM D4179.
Methods of preparing an aromatization catalyst
Catalysts and method of preparing the catalysts are disclosed. One of the catalysts includes a zeolite support, a Group VIII metal on the zeolite support, and at least two halides bound to the zeolite support, to the Group VIII metal, or to both, and can have an average crush strength greater than 11.25 lb based on at least two samples of pellets of the catalyst measured in accordance with ASTM D4179.
Selective catalytic dehydrochlorination of hydrochlorofluorocarbons
A dehydrochlorination process is disclosed. The process involves contacting R.sub.fCHClCH.sub.2Cl with a chromium oxyfluoride catalyst in a reaction zone to produce a product mixture comprising R.sub.fCCl═CH.sub.2, wherein R.sub.f is a perfluorinated alkyl group.