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1)  modified alkali lignin
改性碱木质素
1.
The absorption loss of surfactant ( especially for ORS-41) on the formation rock can be reduced significantly ( more than 50% ) by the preflush or in admixture with modified alkali lignin (HML) , the solution of HML mixed with ORS-41, alkali and polymer can reach super-low oil-water interfacial tension.
改性碱木质素(HML)作为牺牲剂可以显著地减少主表面活性剂石油磺酸钠ORS-41的吸附损失(减少量>50%),HML能和石油磺酸钠、碱、聚合物配合将油水界面张力降至超低范围,以0。
2.
With foam formation once,two kinds of alkali lignin based rigid polyurethane foams (RPUF) were prepared with respectively adding the refined alkali lignin or modified alkali lignin.
本文以麦草碱木质素为原料,经过精制和环氧氯丙烷改性后得到精制碱木质素和改性碱木质素,采用一次发泡法分别合成了两种碱木质素基硬质聚氨酯泡沫(RPUF)。
2)  modified lignin
改性木质素
1.
Making use of modified lignin slow-release ammonium phosphate can eff ectively complex the activitive Fe in the soil and slow down its activity so as to both prevent the rapidly available phosphorus from being fixed and maintain t he soil s phosphorus elements at a higher level.
利用改性木质素缓释磷铵 ,可以有效地络合土壤活性铁 ,降低其活性 ,从而阻止土壤速效磷被固定 ,使土壤磷素维持在较高的水平。
3)  lignin modification
木质素改性
4)  alkali lignin
碱木质素
1.
Study on Deoxidization of Alkali Lignin by CuO/C Catalyst;
氧化铜/活性炭(CuO/C)催化还原碱木质素研究
2.
Study on Deoxidization of Alkali Lignin by Pd/C Catalyst;
钯/炭(Pd/C)催化还原碱木质素的研究
3.
The change of chemical structure of straw alkali lignin in deoxidization reaction with cyclohexene catalyzed by CuO/C catalyst which was prepared by equal volume impregnation was studied by FTIR,UV,1H-NMR and HPLC.
用等体积浸渍法制备CuO/C催化剂,采用FTIR、UV、1H-NMR光谱和HPLC色谱,分析了以CuO/C为催化剂,以环己烯为还原剂对麦草碱木质素进行催化,研究了碱木质素的化学结构变化。
5)  chemical modification of lignin
木质素化学改性
6)  modified lignin resin
木质素改性树脂
补充资料:碱木质素
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性质:用碱从植物组织中抽提出的木质素。木质素受碱的作用,发生一定程度的碱性水解,使其溶解度增加,而被抽提出来,经沉淀分离,得到的木质素称为碱木质素。以烟道气(CO2)或酸处理中和碱法制浆蒸煮废液,也可得到碱木质素沉淀。木材中的木质素分子量约在10 000以上,而碱木质素的分子量大体在1000~2000之间。

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