Abstract 1. A PROCESS FOR THE RECOVERY OF COBALT (II) IONS INITIALLY PRESENT IN A FIRST LIQUID MEDIUM CONSISTING ESSENTIALLY OF ACETIC ACID DERIVED FROM THE LIQUID PHASE OXIDATION OF AN ALIPHATIC HYDROCARBON AND THE PRODUCTION OF A FRESH SOLUTION OF THE SAME COMPRISING: (A) INCORPORATING INTO SAID FIRST ACETIC MEDIUM CONTAINING COBALT (II) IONS AND ABOUT 3 TO 15 PERCENT WATER BY WEIGHT A SOURCE OF OXALATE IONS IN A QUANTITY AT LEAST SUFFICIENT TO REACT STOICHIOMETRICALLY WITH SAID COBALT (II) IONS TO FORM COBALT OXALATE (B) FORMING A SOLID PRECIPITATE OF COBALT 8II) OXALATE IN SAID FIRST ACETIC MEDIUM WHILE AT A TEMPERATURE OF ABOUT 20 TO 150*C., (C) SEPARATING SAID PRECIPITATE OF COBALT OXALATE FROM SAID FIRST ACETIC ACID MEDIUM (D) CONTACTING SAID SEPARATED PRECIPITATE OF COBALT OXALATE WITH A SECOND MEDIUM CONSISTING ESSENTIALLY OF ACETIC ACID CONTAINING ABOUT 3 TO 15 PERCENT WATER BY WEIGHT PROVIDED AT AN ELEVATED TEMPERATURE OF ABOUT 60 TO 140*C. AND CONTAINING CALCIUM IONS DISSOLVED THEREIN IN A QUANTITY AT LEAST EQUIVALENT STOICHIOMETRICALLY THE COBALT (II) IONS CONTAINED IN SAID COBALT OXALATE TO FORM CALCIUM OXALATE, (E) FORMING A SOLID PRECIPITATE OF CALCIUM OXALATE IN SAID SECOND ACETIC ACID MEDIUM WHILE SAID COBALT (II) IONS ARE SOLUBILIZED, AND (F) SEPARAING SAID SOLID PRECIPITATE OF CALCIUM OXALATE FROM SAID SECOND ACETIC ACID MEDIUM TO PRODUCE A FRESH SOLUTION OF CO(II) IONS DISSOLVED IN ACETIC ACID.
A PROCESS FOR THE RECOVERY OF COBALT (II) IONS INITIALLY PRESENT IN A FIRST LIQUID MEDIUM CONSISTING ESSENTIALLY OF ACETIC ACID DERIVED FROM THE LIQUID PHASE OXIDATION OF AN ALIPHATIC HYDROCARBON AND THE PRODUCTION OF A FRESH SOLUTION OF THE SAME COMPRISING: (A) INCORPORATING INTO SAID FIRST ACETIC MEDIUM CONTAINING COBALT (II) IONS AND ABOUT 3 TO 15 PERCENT WATER BY WEIGHT A SOURCE OF OXALATE IONS IN A QUANTITY AT LEAST SUFFICIENT TO REACT STOICHIOMETRICALLY WITH SAID COBALT (II) IONS TO FORM COBALT OXALATE (B) FORMING A SOLID PRECIPITATE OF COBALT 8II) OXALATE IN SAID FIRST ACETIC MEDIUM WHILE AT A TEMPERATURE OF ABOUT 20 TO 150*C., (C) SEPARATING SAID PRECIPITATE OF COBALT OXALATE FROM SAID FIRST ACETIC ACID MEDIUM (D) CONTACTING SAID SEPARATED PRECIPITATE OF COBALT OXALATE WITH A SECOND MEDIUM CONSISTING ESSENTIALLY OF ACETIC ACID CONTAINING ABOUT 3 TO 15 PERCENT WATER BY WEIGHT PROVIDED AT AN ELEVATED TEMPERATURE OF ABOUT 60 TO 140*C. AND CONTAINING CALCIUM IONS DISSOLVED THEREIN IN A QUANTITY AT LEAST EQUIVALENT STOICHIOMETRICALLY THE COBALT (II) IONS CONTAINED IN SAID COBALT OXALATE TO FORM CALCIUM OXALATE, (E) FORMING A SOLID PRECIPITATE OF CALCIUM OXALATE IN SAID SECOND ACETIC ACID MEDIUM WHILE SAID COBALT (II) IONS ARE SOLUBILIZED, AND (F) SEPARAING SAID SOLID PRECIPITATE OF CALCIUM OXALATE FROM SAID SECOND ACETIC ACID MEDIUM TO PRODUCE A FRESH SOLUTION OF CO(II) IONS DISSOLVED IN ACETIC ACID.
Claim 2
Dependent Claim
231 words
A PROCESS FOR THE RECOVERY OF COBALT (II) IONS INITIALLY PRESENT IN A FIRST LIQUID MEDIUM CONSISTING ESSENTIALLY OF ACETIC ACID DERIVED FROM THE LIQUID PHASE OXIDATION OF AN ALIPHATIC HYDROCARBON AND THE PRODUCTION OF A FRESH SOLUTION OF THE SAME COMPRISING: (A) INCORPORATING INTO SAID FIRST ACETIC MEDIUM CONTAINING COBALT (II) IONS AND ABOUT 3 TO 15 PERCENT WATER BY WEIGHT A SOURCE OF OXALATE IONS IN A QUANTITY AT LEAST SUFFICIENT TO REACT STOICHIOMETRICALLY WITH SAID COBALT (II) IONS TO FORM COBALT OXALATE (B) FORMING A SOLID PRECIPITATE OF COBALT 8II) OXALATE IN SAID FIRST ACETIC MEDIUM WHILE AT A TEMPERATURE OF ABOUT 20 TO 150*C., (C) SEPARATING SAID PRECIPITATE OF COBALT OXALATE FROM SAID FIRST ACETIC ACID MEDIUM (D) CONTACTING SAID SEPARATED PRECIPITATE OF COBALT OXALATE WITH A SECOND MEDIUM CONSISTING ESSENTIALLY OF ACETIC ACID CONTAINING ABOUT 3 TO 15 PERCENT WATER BY WEIGHT PROVIDED AT AN ELEVATED TEMPERATURE OF ABOUT 60 TO 140*C. AND CONTAINING CALCIUM IONS DISSOLVED THEREIN IN A QUANTITY AT LEAST EQUIVALENT STOICHIOMETRICALLY THE COBALT (II) IONS CONTAINED IN SAID COBALT OXALATE TO FORM CALCIUM OXALATE, (E) FORMING A SOLID PRECIPITATE OF CALCIUM OXALATE IN SAID SECOND ACETIC ACID MEDIUM WHILE SAID COBALT (II) IONS ARE SOLUBILIZED, AND (F) SEPARAING SAID SOLID PRECIPITATE OF CALCIUM OXALATE FROM SAID SECOND ACETIC ACID MEDIUM TO PRODUCE A FRESH SOLUTION OF CO(II) IONS DISSOLVED IN ACETIC ACID.