The present invention discloses thiol compositions containing monothiotricyclodecenes, dithiotricyclodecanes, and intermolecular sulfide compounds, as well as mining chemical collector compositions containing such thiol compositions. Flotation processes for recovering metals, such as copper and molybdenum, from ores using the mining chemical collector compositions also are disclosed.

The invention relates to a process for continuously preparing methyl mercaptan by reacting a mixture comprising carbon compounds with sulfur and hydrogen, wherein the carbon disulfide and hydrogen sulfide compounds which form are subsequently converted to methyl mercaptan.

The invention relates to a process for continuously preparing methyl mercaptan by reacting a mixture comprising carbon compounds with sulfur and hydrogen, wherein the carbon disulfide and hydrogen sulfide compounds which form are subsequently converted to methyl mercaptan.

The invention relates to a process for continuously preparing methyl mercaptan by reacting a mixture comprising carbon compounds with sulfur and hydrogen, wherein the carbon disulfide and hydrogen sulfide compounds which form are subsequently converted to methyl mercaptan.

[6,6]-Phenyl C.sub.71 butyric acid derivatives (C.sub.70-PCBR.sub.3) having a selectivity of greater than 95 wt % of the α-isomer are provided by reacting fullerene C.sub.70 with a dialkyl sulfonium tetrafluoroborate having the formula:

##STR00001##

[6,6]-Phenyl C.sub.71 butyric acid derivatives (C.sub.70-PCBR.sub.3) having a selectivity of greater than 95 wt % of the α-isomer are provided by reacting fullerene C.sub.70 with a dialkyl sulfonium tetrafluoroborate having the formula:

##STR00001##

The present invention relates to a catalyst which comprises a support material and an oxidic composition containing at least one alkali metal and tungsten, a process for producing such catalysts and also a process for preparing alkyl mercaptans by reaction of alkanols with hydrogen sulphide in the presence of such a catalyst.

The present invention relates to a catalyst which comprises a support material and an oxidic composition containing at least one alkali metal and tungsten, a process for producing such catalysts and also a process for preparing alkyl mercaptans by reaction of alkanols with hydrogen sulphide in the presence of such a catalyst.

A system and method for use in synthesis and promoting interactions of chiral molecules. The system can include: a container configured for containing fluid mixture comprising one or more reactant molecules and at least one surface comprising ferromagnetic or paramagnetic material located to be in at least partial contact with reactants in said container. The ferromagnetic of paramagnetic material can be magnetizable with magnetization direction perpendicular to said at least one surface, thereby providing chiral selective synthesis from said one or more reactant molecules. The technique can enable selective interactions of enantiomers of selected handedness of chiral molecules or formation of selected enantiomers from achiral molecule reactants.

A system and method for use in synthesis and promoting interactions of chiral molecules. The system can include: a container configured for containing fluid mixture comprising one or more reactant molecules and at least one surface comprising ferromagnetic or paramagnetic material located to be in at least partial contact with reactants in said container. The ferromagnetic of paramagnetic material can be magnetizable with magnetization direction perpendicular to said at least one surface, thereby providing chiral selective synthesis from said one or more reactant molecules. The technique can enable selective interactions of enantiomers of selected handedness of chiral molecules or formation of selected enantiomers from achiral molecule reactants.