| 摘要 |
PCT No. PCT/EP92/00370 Sec. 371 Date Sep. 30, 1993 Sec. 102(e) Date Sep. 30, 1993 PCT Filed Feb. 19, 1992 PCT Pub. No. WO92/14680 PCT Pub. Date Sep. 3, 1992Zeolite crystals having an offretite structure have smaller crystals and/or can be produced using a synthesis mixture of lower alkalinity than could otherwise be used, if a divalent metal cation, such as magnesium, barium or cobalt is included in the synthesis mixture.
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