褐煤

It is the unsolidified sediment consisting of disordered kaolinite and small amount organic matter and lignite materials.

常含少量有机质或与褐矿层等。

The results indicated that the trace elements molybdenum and zirconium increased considerably the gas yields of the lignitic organic matter while selenium did not.

析结果表明,除硒元素外,随着钼元素和锆元素的加入,褐有机质气态产物的成量显著提高。

Humic acid (HA ) was abstracted from leonardite,and a composite superabsorbent (HA PSA ) was prepared by compounding poly (acrylic acid ) and lignitic humic acid.

以风化褐为原料制腐植酸(HA),HA与普通型保水剂(PSA)复合,获得HA型保水剂(HA-PSA)。

In this study a series of different maturation degree coals are yielded by thermally treating a lowgrade lignite, and are used as the sorbents for sorption equilibrium study of phenanthrene.

云南先锋褐采用热模拟的实验方法制得一组成熟度不同的,并的干酪根用于对菲的吸附研究。