Number | Name | Date | Kind |
---|---|---|---|
3498746 | Smaltz et al. | Mar 1970 | |
3795728 | Scheel | Mar 1974 | |
4134964 | Ehlers et al. | Jan 1979 | |
4557915 | Nineuil | Dec 1985 |
Number | Date | Country |
---|---|---|
467843 | Jan 1936 | GBX |
1024924 | Apr 1963 | GBX |
Entry |
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Article by James R. Lear et al., J. Agr. Foodchem., vol. 14, No. 1, pp. 27-33 (1966) titled "Precipitated Impurities in Wet Process Phosphoric Acid". |
Article by M. Mathew et al., in American Minerologist, vol. 66, pp. 392-397 (1981). |