Process for the production of aliphatic dinitrile

Claim 1

A METHOD FOR PREPARING AZELONITRILE BY FORMING TWO TERMINAL NITRILE GROUPS IN PLACE OF THE DOUBLE BONDS OF UNSATURATED FATTY ACIDS SELECTED FROM THE GROUP CONSISTING OF OLEIC ACID, LINOLIEC ACID AND MIXTURES THEREOF WHICH COMPRISES THE STEPS OF DISSOLVING THE UNSATURATED FATTY ACIDS IN A NITRILE SOLVENT SELECTED FROM THE GROUP CONSISTING OF PELARGONONITRILE, CAPRONITRILE AND MIXTURES THEREOF; REACTING SAID UNSATURATED FATTY ACIDS WITH OZONIZED OXYGEN AT A TEMPERATURE FROM ABOUT 10*C. TO ABOUT 50*C. TO FORM OZONIDES THEREOF; CLEAVING SAID OZONIDES IN THE PRESENCE OF A REACTION PROMOTING AGENT SELECTED FROM THE GROUP CONSISTING OF ORTHOPHOSPHORIC ACID, PYROPHOSPHORIC ACID, METAPHOSPHORIC ACID, PHOSPHORUS ACID, POLYPHOSPHORIC ACIDS, PHOSPHORIC ANHYDRIDE, TEIRTHYLPHOSPHATE, TRIBUTYL PHOSPHATE, TRICOTYL PHOSPHATE, TRICRESYL PHOSPHATE, ETHYL METAPHOSPHATE, BUTRYL PYROPHOSPHATE AND OCTYL PHOSPHITE IN A DECOMPOSING ZONE, AND REACTING THE PRODUCTS RESULTING FROM SAID CLEVAGE THEREOF WITH OXYGEN AT A TEMPERATURE FROM ABOUT 80*C. TO ABOUT 120*C. IN THE PRESENCE OF AN OXIDATION CATALYST TO FROM ORGANIC ACIDS SELECTED FROM THE GROUP CONSISTING OF MONOBASIC AND DIBASIC ACIDS AND MIXTURES THEREOF, THEREAFTER CONTACTING SAID MONOBASIC AND DIBASIC ACIDS WITH AMMONIA AT A TEMPERATURE FROM 320 TO 360*C., IN A NITRILIZING ZONE TO FORM NITRILE GROUPS THEREON, THEREBY PRODUCING A MIXTURE OF AZELONITRILE AND AT LEAST ONE MONONTRILE FROM THE GROUP CONSISTING OF CAPRONITRILE, PELAGONONITRILE AND MIXTURES THEREOF, AND SEPARATING AZELONITRILE FROM SAID MIXTURES.

Claim 2

A METHOD FOR PREPARING AZELONITRILE BY FORMING TWO TERMINAL NITRILE GROUPS IN PLACE OF THE DOUBLE BONDS OF UNSATURATED FATTY ACIDS SELECTED FROM THE GROUP CONSISTING OF OLEIC ACID, LINOLIEC ACID AND MIXTURES THEREOF WHICH COMPRISES THE STEPS OF DISSOLVING THE UNSATURATED FATTY ACIDS IN A NITRILE SOLVENT SELECTED FROM THE GROUP CONSISTING OF PELARGONONITRILE, CAPRONITRILE AND MIXTURES THEREOF; REACTING SAID UNSATURATED FATTY ACIDS WITH OZONIZED OXYGEN AT A TEMPERATURE FROM ABOUT 10*C. TO ABOUT 50*C. TO FORM OZONIDES THEREOF; CLEAVING SAID OZONIDES IN THE PRESENCE OF A REACTION PROMOTING AGENT SELECTED FROM THE GROUP CONSISTING OF ORTHOPHOSPHORIC ACID, PYROPHOSPHORIC ACID, METAPHOSPHORIC ACID, PHOSPHORUS ACID, POLYPHOSPHORIC ACIDS, PHOSPHORIC ANHYDRIDE, TEIRTHYLPHOSPHATE, TRIBUTYL PHOSPHATE, TRICOTYL PHOSPHATE, TRICRESYL PHOSPHATE, ETHYL METAPHOSPHATE, BUTRYL PYROPHOSPHATE AND OCTYL PHOSPHITE IN A DECOMPOSING ZONE, AND REACTING THE PRODUCTS RESULTING FROM SAID CLEVAGE THEREOF WITH OXYGEN AT A TEMPERATURE FROM ABOUT 80*C. TO ABOUT 120*C. IN THE PRESENCE OF AN OXIDATION CATALYST TO FROM ORGANIC ACIDS SELECTED FROM THE GROUP CONSISTING OF MONOBASIC AND DIBASIC ACIDS AND MIXTURES THEREOF, THEREAFTER CONTACTING SAID MONOBASIC AND DIBASIC ACIDS WITH AMMONIA AT A TEMPERATURE FROM 320 TO 360*C., IN A NITRILIZING ZONE TO FORM NITRILE GROUPS THEREON, THEREBY PRODUCING A MIXTURE OF AZELONITRILE AND AT LEAST ONE MONONTRILE FROM THE GROUP CONSISTING OF CAPRONITRILE, PELAGONONITRILE AND MIXTURES THEREOF, AND SEPARATING AZELONITRILE FROM SAID MIXTURES.