Method for the refining of oils and fatty substances

• US 2,786,858 A
• Filed: 12/11/1952
• Issued: 03/26/1957
• Est. Priority Date: 12/13/1951
• Status: Expired due to Term

• Current Assignee: Paul Vandervoort
• Original Assignee: Paul Vandervoort
• Inventors: Vandervoort, Paul
• Application Number:
  US03/325,289
• Time in Patent Office: 1,566 Days
• US Class Current: 554/200
• CPC Class Codes: C11B 3/16 by mechanical means

Claims

1. IN A PROCESS FOR REFINING OILS AND FATTY MATERIALS BY SOLVENT EXTRACTION, WHICH COMPRISES THE STEPS OF ADMIXING THE CRUDE MISCELLA, IN THE FORM OF A SOLUTION OF THE CRUDE MATERIAL TO BE REFINED, WITH A NEUTRALIZING AGENT AND WITH ISOPROPYL ALCOHOL WHICH DISSOLVES PARTLY IN THE SOLVENT OF THE MISCELLA AND PARTLY IN THE NEUTRALIZING AGENT, SEPARATING THE RESULTANT LAYERS BY DECANTATION, SAID LAYERS COMPRISING AN UPPER LAYER CNSISTING CHIEFLY OF NEUTRALIZED MISCELLA, A LOWER LAYER CONSISTING CHIEFLY OF SOAP DISSOLVED IN ISOPROPYL ALCOHOL, AND AN INTERPHASE LAYER CONSISTING ESSENTIALLY OF GUMS AND IMPURITIES, WASHING THE UPPER AND LOWER PHASES RESULTIGN FROM SAID DECANTATION WITH WATER AND WITH A LIQUID CONTAINING THE SOLVENT OF THE MISCELLA AND THE ISOPROPYL ALCOHOL, THE FEATURES OF CARRYING OUT THE SAID WASHINGS IN A COLUMN THROUGH WHICH THE SAID PHASES PAS IN COUNTERCURRENT TO SAID WATER AND SAID LIQUID RESPECTIVELY, PASSING THE WATER AFTER IT HAS SERVED FOR WASHING THE SAID UPPER PHASE THROUGH THE SAID COLUMN SIMULTANEOUSLY WITH THE LOWER PHASE RESULTING FROM SAID DECANTATION, AND PASSING THE POOR MISCELLA RESULTING FROM THE WASHING OF THE LOWER PHASE THROUGH THE SAID COLUMN SIMULTANEOUSLY WITH SAID UPPER PHASE.