THE PREPARATION OF A SOLUTION OF HYDROXYETHYLETHYLENEDIAMINETRIACETIC ACID FROM A SOLUTION OF TRISODIUM HYDROXYETHYLETHYLENEDIAMINETRIACETATE AND THE SEPARATION OF OXALIC ACID-HYDROXYETHYL-ETHYLENEDIAMINETRIACETIC ACID SOLUTIONS BY MEANS OF ION EXCHANGE. Report No. 237. Period covered : December 27, 1957-August 8, 1958
A method for the semicontinuous preparation of hydroxyethylethylenediaminetriacetic acid (HEDTA) by means of ion exchange from a 41% solution of trisodium hydroxyethylethylenediaminetriacetate is presented. The yield of hydroxyethylethylenediaminetriacetic acid from the 41% trisodium hydroxyethylethylenediaminetriacetate solution was 82% of the theoretical yield. Separation of an yttrium concentrate produced in the liquid-liquid contactor with the hydroxyethylethylenediaminetriacetic acid prepared in the pilot plant gave a yield of 73.4% of the yttrium oxide recovered from the columns as high purity yttrium oxide. An hydroxyethylethylenediaminetriacetic acid solution free of oxalic acid was recovered in 95% yield from a solution of oxalic acid and hydroxyethylethylenediaminetriacetic acid. A method for the analysis of solutions containing hydroxyethylethylenediaminetriacetic acid and oxalic acid was developed. (auth)
- Research Organization:
- Michigan Chemical Corp., St. Louis, Mich.
- NSA Number:
- NSA-15-005931
- OSTI ID:
- 4082189
- Report Number(s):
- TID-11093
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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