Assertion: phosphoric acid's impurity | /r/CapableOf | comprise contacting said
Facets:
Source sentences:
text: The method of purifying phosphoric acid by removing phosphoric acid from cationic or metallic impurities, which comprises contacting said acid with a water-insoluble extractant phase comprised of a long chain hydrocarbyl amine dissolved in an organic diluent, said amine having the formula wherein R and R are members selected from the class consisting of saturated and ethylenically unsaturated aliphatic hydrocarbyl groups containing from about 7 to about 15 carbon atoms and R is a member selected from the class consisting of hydrogen and saturated and ethylenically unsaturated aliphatic hydrocarbyl groups containing from 1 to about 18 carbon atoms, said extractant phase being used in amounts sufficient to extract said phosphoric acid and to form a water-immiscible extractant phase, separating said extractant phase and said impurities and removing said phosphoric acid from said extractant phase by contacting with an aqueous solvent.
text: The method of purifying phosphoric acid by removing phosphoric acid from cationic or metallic impurities, which comprises contacting said acid with a water-insoluble extractant phase comprised of a long chain hydrocarbyl amine salt dissolved in an organic diluent, said amine having the formula wherein R and R are members selected from the class consisting of saturated and ethylenically unsaturated aliphatic hydrocarbyl groups containing from about 7 to about 15 carbon atoms, R is a member selected from the class consisting of hydrogen, saturated and ethylenically unsaturated aliphatic hydrocarbyl groups contain ing from 1 to about 18 carbon atoms, 12 is an integer from 1 to 3 inclusive and X is a member selected from the class consisting of anions of mineral acids having a Ka greater than about 8 l0 said extractant phase being used in amounts sufficient to extract said phosphoric acid and to form a water-immiscible extractant phase, separating said extractant phase and said impurities and removing said phosphoric acid from said extractant phase by contacting with an aqueous solvent.
text: The method of purifying phosphoric acid by removing phosphoric acid from cationic or metallic impurities, which comprises contacting said acid with a water-insoluble extractant phase comprised of a long chain hydrocarbyl quaternary ammonium compound dissolved in an organic diluent, said compound having the formula wherein R and R are members selected from the class consisting of saturated and ethylenically unsaturated aliphatic hydrocarbyl groups containing from about 7 to about 15 carbon atoms, R is a member selected from the class consisting of saturated and ethylenically unsaturated aliphatic hydrocarbyl groups from 1 to about 18 carbon atoms, R; is a member selected from the class consisting of saturated and ethylenically unsaturated aliphatic hydrocarbyl groups from 1 to about 15 carbon atoms and Y is a member selected from the class consisting of anions of mineral acids having a Ka greater than about 8 l0 said extractant phase being used in amounts sufiicient to extract said phosphoric acid and to form a water-immiscible eXt-ractaut phase, separating said extractant phase and said impurities and removing said phosphoric acid from said extractant phase by contacting with an aqueous solvent.
text: A method of purifying phosphoric acid by removing phosphoric acid from cationic or metallic impurities, which comprises contacting said acid with a water-insoh uble extractant phase comprised of a compound selected from the group consisting of amines and quaternary ammonium compounds dissolved in an organic diluent, said compound being characterized by containing at least 2 hydrophobic aliphatic substituent groups containing from about 7 to about 15 carbon atoms, said extractant phase being used in amounts sufiicient to extract said phosphoric acid and to form a water-immiscible extractant phase, separating said water-immiscible extractant phase and said impurities, and removing said phosphoric acid from said extractant phase by contacting with an aqueous solvent.