Production of thiol compounds

Claim 1

A METHOD FOR THE PREPARATION OF A TIOL COMPRISING CONTACTING AT A TEMPERATURE OF AT LEAST 250*C. AND IN THE PRESENCE OF A POLAR ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF CYCLIC AND ACYCLIC CARBOXYLIC ACID AMIDES HAVING FROM 3 TO 6 CARBON ATOMS PER MOLECULE AN ALKALI METAL MONOSULFIDE AND AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF A POLYHALO AROMATIC COMPOUND, A PLYHALO HETEROCYCLIC COMPOUND, A POLYMER RESULTING FROM THE REACTION OF AN EXCESS OF A POLYHALO AROMATIC COMPOUND WITH AN ALKALI METAL MONOSULFIDE, A POLYMER RESULTING FROM THE REACTION OF AN EXCESS OF A POLYHALO HETEROCYCLIC COMPOUND WITH AN ALKALI METAL MONOSULFIDE, A DIARYL SULFIDE AND A DI(ALKARYL)SULFIDE, THE MOL RATIO OF ALKALI METAL MONOSULFIDE TO THE ABOVE POLYHALO AROMATIC AND POLYHALO HETEROCYCLIC COMPOUNDS BEING FROM ABOUT 2/1 TO ABOUT 5/1 AND THE RATIO OF ALKALI METAL MONOSULFIDE TO THE ABOVE POLYMERS, TO THE DIARYL SULFIDE AND TO THE DI(ALKARYL)SULFIDE BEING SUCH AS TO PROVIDE FROM ABOUT 1/1 TO ABOUT 5/1 GRAM MOLS OF ALKALI METAL MONOSULFIDE PER GRAM ATOM OF SULFUR PRESENT IN THE POLYMERS, DIARYL SULFIDE OR DI(ALKARYL)SULFIDE TO PRODUCE A PRODUCT, AND ACIDIFYING SAID PRODUCET WITH A MINERAL ACID THEREBY PRODUCING THE DESIRED THIOL, THE TOTAL HALOGEN ATOMS IN SAID POLYHALO COMPOUNDS NOT EXCEEDING 4.

Claim 2

A METHOD FOR THE PREPARATION OF A TIOL COMPRISING CONTACTING AT A TEMPERATURE OF AT LEAST 250*C. AND IN THE PRESENCE OF A POLAR ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF CYCLIC AND ACYCLIC CARBOXYLIC ACID AMIDES HAVING FROM 3 TO 6 CARBON ATOMS PER MOLECULE AN ALKALI METAL MONOSULFIDE AND AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF A POLYHALO AROMATIC COMPOUND, A PLYHALO HETEROCYCLIC COMPOUND, A POLYMER RESULTING FROM THE REACTION OF AN EXCESS OF A POLYHALO AROMATIC COMPOUND WITH AN ALKALI METAL MONOSULFIDE, A POLYMER RESULTING FROM THE REACTION OF AN EXCESS OF A POLYHALO HETEROCYCLIC COMPOUND WITH AN ALKALI METAL MONOSULFIDE, A DIARYL SULFIDE AND A DI(ALKARYL)SULFIDE, THE MOL RATIO OF ALKALI METAL MONOSULFIDE TO THE ABOVE POLYHALO AROMATIC AND POLYHALO HETEROCYCLIC COMPOUNDS BEING FROM ABOUT 2/1 TO ABOUT 5/1 AND THE RATIO OF ALKALI METAL MONOSULFIDE TO THE ABOVE POLYMERS, TO THE DIARYL SULFIDE AND TO THE DI(ALKARYL)SULFIDE BEING SUCH AS TO PROVIDE FROM ABOUT 1/1 TO ABOUT 5/1 GRAM MOLS OF ALKALI METAL MONOSULFIDE PER GRAM ATOM OF SULFUR PRESENT IN THE POLYMERS, DIARYL SULFIDE OR DI(ALKARYL)SULFIDE TO PRODUCE A PRODUCT, AND ACIDIFYING SAID PRODUCET WITH A MINERAL ACID THEREBY PRODUCING THE DESIRED THIOL, THE TOTAL HALOGEN ATOMS IN SAID POLYHALO COMPOUNDS NOT EXCEEDING 4.