共 18 条
[1]
BUSHELL CHG, 1969, Patent No. 3462017
[2]
BUSHELL CHG, 1969, Patent No. 3462016
[3]
HOPPE R, 1976, ENG MIN J, V177, P81
[4]
Hsieh S. S., 1985, Minerals and Metallurgical Processing, V2, P10
[5]
KIUKKOLA K, 1980, 2ND P INT C PHOSPH C, P219
[6]
LAWVER JE, 1982, MIN CONGR J, V68, P27
[7]
LAWVER JE, 1983, Patent No. 4372843
[8]
LAWVER LE, 1980, Patent No. 4189103
[9]
LEHR JR, 1981, Patent No. 4287053
[10]
MAIR AD, 1986, Patent No. 4588498