Enhanced Temperature Control of Bitumen Froth Treatment Process

A process for treating a bitumen froth to produce a diluted bitumen component and a solvent diluted tailings component, comprising:

• adding a first solvent containing stream to the bitumen froth to produce a diluted bitumen froth;
• separating the diluted bitumen froth into a first stage overflow component comprising the diluted bitumen component and a first stage underflow component;
• adding a second solvent containing stream to the first stage underflow component to produce a diluted first stage underflow component;
• and
• separating the diluted first stage underflow component into a second stage overflow component and a second stage underflow component comprising the diluted tailings component;
• wherein the process further comprises adding a chemical viscosity modifier that is derived from the diluted bitumen component, to the bitumen froth, and
• wherein the first and second solvent containing streams comprise paraffinic solvents.