Production of fatty esters

• US 2,494,366 A
• Filed: 07/15/1947
• Issued: 01/10/1950
• Est. Priority Date: 07/15/1947
• Status: Expired due to Term

• Current Assignee: Francis J. Sprules, Price, Donald
• Original Assignee: Francis J. Sprules, Price, Donald
• Inventors: Sprules, Francis J., Price, Donald
• Application Number:
  US02/761,160
• Time in Patent Office: 910 Days
• US Class Current: 554/167
• CPC Class Codes: C11C 3/003 by esterification of fatty acids with alcohols C11C3/02 takes precedence

Claims

1. IN A PROCESS FOR PRODUCING ALKYL ESTERS OF FATTY ACIDS, THE STEPS COMPRISING TRANSETERIFYING FATTY MATERIALS HAVING ACID VALUES OF AT LEAST ONE BY CONTACTING SAID FATTY MATERIALS WITH AT LEAST TWO MOLES OF A MONOHYDRIC ALCOHOL PER FATTY ACID EQUIVALENT, SAID MONOHYDRIC ALCOHOL CONTAINING FROM ONE TO EIGHT CARBON ATOMS, IN THE PRESENCE OF A SUFFICIENT AMOUNT OF AN ALKALINE CATALYST TO NEUTRALIZE THE FREE FATTY ACIDS IN THE FATTY MATERIAL AND PROVIDE A SLIGHT EXCESS OF ALKALINE MATERIAL TO SERVE AS THE TRANSESTERIFICATION CATALYST, HEATING THE MASS FOR A SHORT TIME TO EFFECT TRANSESTERIFICATION, ADDING A SUFFICIENT AMOUNT OF AN ACID CATALYST TO SPLIT THE SOAPS IN THE REACTION MASS, NEUTRALIZE THE ALKALINE CATALYST IN THE REACTION MASS, AND PROVIDE A SLIGHT EXCESS OF ACIDIC MATERIAL TO SERVE AS AN ESTERIFICATION CATALYST, AND THEN ESTERFYING THE FREE FATTY ACIDS IN THE REACTION MASS WITH THE MONOHYDRIC ALCOHOL PRESENT THEREIN BY FURTHER HEATING OF THE MASS.