Process for production of amino hydroxy compounds by hydrogenation of nitro hydroxy compounds

Claim 1

A MODIFIED BATCH PROCESS OF HYDROGENATING NITRO HYDROXY PARAFFIN COMPOUNDS, WHICH HAVE THEIR NITRO AND HYDROXY GROUPS ON ADJACENT CARBON ATOMS, TO THE CORRESPONDING AMINO HYDROXY COMPOUNDS, WHICH COMPRISES INTRODUCING A BATCH OF INERT SOLVENT FOR THE NITRO HYDROXY COMPOUND AND A HYDROGENATION CATALYST INTO A CLOSED REACTION ZONE, HEATING THE ZONE TO A TEMPERATURE OF FROM ABOUT 40* TO 100* C. AND PASSING HYDROGEN INTO THE ZONE UNTIL THE PRESSUSRE IS WITHIN THE RANGE OF FROM ABOUT 200 TO 2000 POUNDS PER SQUARE INCH, THEN INTRODUCING THE NITRO HYDROXY COMPOUND TO BE HYDROGENATED INTO SAID ZONE AND MAINTAINING THE CONCENTRATION OF SAID NITRO HYDROXY COMPOUND IN SAID ZONE SUBSTANTIALLY AT ZERO BY FEEDING IT SO SLOWLY THAT HYDROGENATION IS COMPLETED SUBSTANTIALLY INSTANTANEOUSLY AS IT ENTERS THE REACTION ZONE, WHILE MAINTAINING SAID CONDITIONS OF TEMPERATURE AND HYDROGEN PRESSURE, AND RECOVERING THE RESULTING AMINO HYDROXY COMPOUND FROM THE RESULTING BATCH.