The results indicated that the trace elements molybdenum and zirconium increased considerably the gas yields of the lignitic organic matter while selenium did not.
分析结果表明,除硒元素外,随着钼元素和锆元素的
,
煤有机质气态产物的生成量显著提
。
煤的；煤的The results indicated that the trace elements molybdenum and zirconium increased considerably the gas yields of the lignitic organic matter while selenium did not.
分析结果表明,除硒元素外,随着钼元素和锆元素的,煤有机质气态产物的生成量显著提。
Humic acid (HA ) was abstracted from leonardite,and a composite superabsorbent (HA PSA ) was prepared by compounding poly (acrylic acid ) and lignitic humic acid.
以风化煤为原料制备腐植酸(HA),将HA与
保水剂(PSA)复合,获得HA保水剂(HA-PSA)。
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