METHODS FOR REDUCING CAUSTIC ADDITION DURING BITUMEN EXTRACTION FROM MINED OIL SANDS

摘要

There is provided a process for treating a bituminous mixture. The processincludes separatinga bituminous mixture into a bitumen-rich stream and a bitumen-lean stream. Thebituminousmixture includes bitumen ore, an operative treatment agent, air and water. Areleasedtreatment agent is recovered from the bitumen-rich stream. The operativetreatment agentincludes the released treatment agent.