Method for purifying 1,1-bis(4'-hydroxy-3'-methylphenyl)cyclohexane and methods of producing polycarbonates therefrom
A method for purifying 1,1-bis(4'-hydroxy-3'-methylphenyl)cyclohexane comprises dissolving said 1,1-bis(4'-hydroxy-3'-methylphenyl)cyclohexane in a first solvent consisting essentially of an alcohol to form a first solution; filtering said first solution; adding a second solvent...
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| creator | KRISHNAMURTI RAMESH KAPILA DEBJANI SRINIVASAN VEERARAGHAVAN SHYADLIGERI ASHOK DAVIS GARY C RADHAKRISHNA A. S |
| description | A method for purifying 1,1-bis(4'-hydroxy-3'-methylphenyl)cyclohexane comprises dissolving said 1,1-bis(4'-hydroxy-3'-methylphenyl)cyclohexane in a first solvent consisting essentially of an alcohol to form a first solution; filtering said first solution; adding a second solvent consisting essentially of water to the filtered first solution to form a second solution, wherein said second solution comprises about 40 parts to about 95 parts of the first solvent per 100 parts of the combined weight of the first and second solvents; crystallizing said 1,1-bis(4'-hydroxy-3'-methylphenyl) cyclohexane from said second solution to form a first crystalline product; dissolving said first crystalline product in a third solvent to form a third solution, wherein the third solvent comprises an aromatic compound; and crystallizing said 1,1-bis(4'-hydroxy-3'-methylphenyl)cyclohexane from said third solution to produce a second crystalline product. |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | Method for purifying 1,1-bis(4'-hydroxy-3'-methylphenyl)cyclohexane and methods of producing polycarbonates therefrom |
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