Method of producing refined oils and/or fats, and method for producing tocopherols

A method of producing refined oils and/or fats, comprising:

• a type 1 distillation step that comprises subjecting raw material oils and/or fats to thin film distillation under a type 1 condition;
• a type 3 distillation step that comprises subjecting a type 1 distillate fraction obtained after the type 1 distillation step to thin film distillation under a type 3 condition;
• a type 2 distillation step that comprises subjecting a type 3 distillate fraction obtained after the type 3 distillation step to thin film distillation under a type 2 condition;
• and
• a mixing step that comprises mixing a type 1 residual fraction obtained after the type 1 distillation step and a type 2 residual fraction obtained after the type 2 distillation step to obtain a mixed oil,
• the type 1 condition including a temperature of 250° C. or more and 290° C. or less and a degree of vacuum of 0.1 Pa or less,
• the type 2 condition and the type 3 condition each including a temperature lower than that in the type 1 condition and a degree of vacuum of 0.1 Pa or less,
• the temperature in the type 2 condition being 5° C. or more and 15° C. or less lower than that in the type 3 condition.

A method of producing tocopherols, comprising:

• a type 1 distillation step that comprises subjecting raw material oils and/or fats to thin film distillation under a type 1 condition;
• a type 2 distillation step that comprises subjecting a type 1 distillate fraction obtained after the type 1 distillation step to thin film distillation under a type 2 condition;
• a type 3 distillation step that comprises subjecting a type 2 residual fraction obtained after the type 2 distillation step to thin film distillation under a type 3 condition;
• and
• a collecting step that comprises collecting a type 3 distillate fraction obtained after the type 3 distillation step,
• the type 1 condition including a temperature of 250° C. or more and 290° C. or less and a degree of vacuum of 0.1 Pa or less,
• the type 2 condition and the type 3 condition each including a temperature lower than that in the type 1 condition and a degree of vacuum of 0.1 Pa or less,
• the temperature in the type 2 condition being 5° C. or more and 15° C. or less lower than that in the type 3 condition.

A method of producing tocopherols, comprising:

• a type 1 distillation step that comprises subjecting raw material oils and/or fats to thin film distillation under a type 1 condition;
• a type 3 distillation step that comprises subjecting a type 1 distillate fraction obtained after the type 1 distillation step to thin film distillation under a type 3 condition;
• a type 2 distillation step that comprises subjecting a type 3 distillate fraction obtained after the type 3 distillation step to thin film distillation under a type 2 condition;
• and
• a collecting step that comprises collecting a type 2 residual fraction obtained after the type 2 distillation step,
• the type 1 condition including a temperature of 250° C. or more and 290° C. or less and a degree of vacuum of 0.1 Pa or less,
• the type 2 condition and the type 3 condition each including a temperature lower than that in the type 1 condition and a degree of vacuum of 0.1 Pa or less,
• the temperature in the type 2 condition being 5° C. or more and 15° C. or less lower than that in the type 3 condition.