合成原料的配比发生改变，产品4A分子筛中会分别含有羟基方钠石、B型分子筛等杂相； 控制好原料配比，可以得到纯4A分子筛、纯B型分子筛、纯X型分子筛。
By changing the proportion of raw materials, different kinds of molecular sieves are obtained, such as those of 4A zeolite, B zeolite, X zeolite , hydroxy sodalite and their mixtures.
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