Granular alkali metal nitrilotriacetate and processes for producing same
Abstract
Abstract CAKING-RESISTANT GRANULAR ALKALI METAL NITRILOTRIACETATE PRODUCTS ARE PREPARED BY FORMING A REACTION MIXTURE OF NITRILOTRIACETIC ACID AND ALKALI METAL CARBONATE AND WATER; THE MOLAR RATIO OF NITRILOTRIACETIC ACID TO THE ALKALI METAL CONTENT OF SAID CARBONATE BEING FROM ABOUT 1:2 TO ABOUT 1:20, SAID WATER COMPRISING FROM ABOUT 5% TO ABOUT 35% BY WEIGHT BASED UPON THE WEIGHT OF THE TOTAL REACTION MEDIUM AND DRYING THE RESULTING MIXTURE TO OBTAIN A DETERGENT ADDITIVE CONTAINING DIALKYLI METAL NITRILOTRIACETATE AND HAVING A BULK DENSITY OF FROM ABOUT 0.4 TO ABOUT 0.8 G./CC. AND HAVING ABOUT 60% OF ITS PARTICLES SMALLER THAN THE OPENINGS IN A U.S. STANDARD 10 MESH SCREEN AND ABOUT 60% LARGER THAN THE OPENINGS IN A U.S. STANDARD 60 MESH SCREEN AND LESS THAN ABOUT 8% BY WEIGHT OF WATER.
Inventors
- 👤 Chung Yu Shen
- 👤 Norman Earl Stahlheber
Bibliographic Details
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