Filter melting method for separating mixtures

A method for separating a mixture into a liquid and a material by using filter crystals, the method comprising the steps of:

• producing the filter crystals by cooling a mother liquid;
• providing the mixture including the liquid to be passed and the material to be captured, the material being immiscible and dispersed in the liquid;
• forming a crystal-filter layer of the filter crystals on the supporting wall of a rotating basket;
• supplying the mixture to the crystal-filter layer to allow the liquid to pass through the crystal-filter layer and the holes of the supporting wall, while capturing the material by the crystal-filter layer, thereby separating the liquid from the mixture, an average distance between the holes of the supporting wall being larger than an average thickness of the crystal-filter layer that has captured the material;
• separating from the supporting wall the crystal-filter layer that has captured the material;
• and
• melting the filter crystals in the crystal-filter layer that has captured the material to allow the filter crystals and the captured material to separate.