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- technical alkali lignin 工业碱木素
- The lignosulfonate water reducing agent was prepared via oxidation and sulfonation of wheat straw alkali lignin. 以麦草碱木素为原料,采用氧化磺化法,制备了磺化碱木素减水剂。
- The principle and possibility of using chemical methods and physical methods for increasing the reaction activity of alkali lignin are analyzed. 分析了采用化学和物理等方法增加碱木质素自身的反应活性的原理和可能性。
- Hydroxyl values of straw alkali lignin and modified lignin resin were determined by potentiometric titration in suitable composite acylation system. 选用合适的复合酰化体系,通过电位滴定,测定了工业碱木质素及其改性树脂的羟值。
- The results showed that alkali lignin of rice straw is a good fertilizer raw material.It has high dissociable humic acid content and good fertilizer efficiency. 结果表明,稻草碱木素具有较高的游离腐殖酸含量,其活性高,肥效好;
- Wheat straw oxygen alkali lignin (AOL) was precipitated from the oxygen alkali pulping black liquor by adding HCl and H AOL was synthesized from AOL and propylene oxide (PO) under high temperature and high pressure . 用盐酸分离出麦草氧碱黑液中的木素 ,用环氧丙烷 (PO)在高温高压下使木素改性。
- Abstract: A heterogeneous catalytic system for methylolation of alkali lignin was constituted of tetrahydrofuran containing purified alkali lignin and solid alkali catalyst with special structure . 文摘:将合成出的具有特定结构的复合型固体碱催化剂，与溶有纯化碱木素的四氢呋喃建立起多相催化体系，对碱木素进行了多相催化羟甲基化作用。
- Hydroxyalkyal lignin was synthesized from alkali lignin with propylene oxide.Then it was epoxided by epichlorohydrin catalyzed via boron trifluoride etherate to form ligninbased epoxy resin. 摘要以碱木质素为原料，三氟化硼乙醚为催化剂，用环氧丙烷对碱木质素进行丙氧基化改性后，与环氧氯丙烷反应合成木质素基环氧树脂。
- This paper reviews the application of petroleumsulfonate and the use of lignosulfonate in oil recovery enhancement. The modification of straw based alkali lignin is also briefly discussed. 论述了石油磺酸盐和木素磺酸盐在提高石油回收中的应用，并根据我国实情，提出了草类碱木素磺化改性的新方法。
- A heterogeneous catalytic system for methylolation of alkali lignin was constituted of tetrahydrofuran containing purified alkali lignin and solid alkali catalyst with special structure . 将合成出的具有特定结构的复合型固体碱催化剂，与溶有纯化碱木素的四氢呋喃建立起多相催化体系，对碱木素进行了多相催化羟甲基化作用。
- Factors influencing alkylation and oxidation, changes in the moleculer structure of the alkali lignin, and the reactivity of the final lignin-based surfactant product were being discussed. 并对改性过程木素分子结构的变化、改性产物的表面活性以及对改性反应的影响因素进行了探讨。
- alkali lignin of wheat and straw pulp 草浆碱木素
- The Methylolation of Alkali Lignin through Heterogeneous Catalysis 碱木素的多相催化羟甲基化
- The Application of Modified Alkali Lignin in Tertiary Oil Recovery 改性碱木质素产品在三次采油中的应用研究
- Keywords alkali lignin;heterogeneous catalysis;methylolation; 碱木素;多相催化;羟甲基化;
- He learned technical skills by trial and error. 他通过不断摸索掌握技能。
- Here is some catalogue and technical data. 这儿有一些产品目录和技术资料。
- Keywords CuO/C catalyst;Alkali Lignin;Reductive Reaction;Activate; 催化剂;碱木质素;还原反应;活化;
- This book is too technical for me. 对我来说，这本书太专业了。
- The article is rather technical in places. 这篇论文中有些地方相当专业化。
