Amino ethanol Dithiocarbonates

The general expression of amino ethanol dithiocarbonates can be given as follows  

Amino ethanol dithiocarbonates can be produced by the following reaction  

According to reports, the following amino ethanol dithiocarbamates had been synthesized  

The synthetic reaction of trialkyl hydroxyl amino ethanol dithiocarbonates is given as follows  

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Amino ethanol Dithiocaibonates Diphenyl amino ethanol dithiocarbonate ... 

The following trialkyl hydroxyl amino ethanol dithiocarbonates had been synthesized ... 

Flotation results of Cu-Ni sulhde ore showed that the flotation performance of dibutyl amino ethanol dithiocarbonate is relatively better among these above reagents. Tributyl amino ethanol dithiocarbonate has good collecting capability, but low selectivity. 

It was recently reported that a new amino ethanol dithiocarbonate (RiR2NCH20H) was prepared from primary amine and formaldehyde under the condition of 10 % diluting agent, 30-36 % NaOH solution, and addition of CS2 at 25-30 °C. When the numbers of C atoms of Rj and R2 are less 30, the new amino ethanol dithiocarbonate owns good collecting capability and selectivity. 

According to the structure characteristics, amino ethanol dithiocarbonates are amphoteric collectors. The property of amino ethanol dithiocarbonate varies with pH ... 

The flotation performance of amino ethanol dithiocarbonates is influenced obviously by pH, especially nearby its isoelectric point. 

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