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硫酸盐木质素
相关语句
  sulfate lignin
     The inexpensive and convenient coal water mixture(CWM) additive is prepared by sulfonation modify with sulfate lignin.
     利用硫酸盐木质素改性制备廉价易得的水煤浆添加剂 .
短句来源
  kraft lignin
     Oxidative ammonolysis reaction of wheat soda lignin and wood kraft lignin was studied.
     对麦草碱木质素和木材硫酸盐木质素的氧化氨解反应进行研究。
短句来源
     DEMETHYLATED KRAFT LIGNIN AS A SUBSTITUTE FOR PHENOL IN WOOD ADHESIVE
     脱甲基硫酸盐木质素代替酚在木材粘合剂中的应用
短句来源
     Thus,high pressure extracted lignin could directly be converted to fusible materials,unlike kraft lignin requiring chemical modification.
     因此,高压萃取木质素可不必像硫酸盐木质素那样经化学修饰才有可能转化为可熔材料。
短句来源
     By demethylating kraft lignin the number of reactive sites with formaldehyde is increased and its reactivity towards formaldehyde is also increased because of catechol formation in the lignin structure. Through demethylation the lignin can be made more reactive than phenol itself.
     硫酸盐木质素经脱甲基增加了与甲醛反应的活性,且因在木质素结构中形成了邻苯二酚结构,其反应性能较苯酚更活泼。
短句来源
     Kraft lignin was sulfonated or sulfomethylated with sodium sulfite or sodium sulfite-formaldehyde mixture,then reacted with epichlorohydrin to block a portion of the free-phenolic hydroxyl group and at the same time to cross-link lignin molecules to increase the molecular weight,the end product as dye dispersant was obtained at last.
     硫酸盐木质素经亚硫酸盐磺化或亚硫酸盐 甲醛磺甲基化后,再用环氧氯丙烷将部分酚羟基封闭,同时使木质素分子间交联,得到改性木质素染料分散剂。
短句来源
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  “硫酸盐木质素”译为未确定词的双语例句
     STUDY ON PREPARATION OF DYE DISPERSANT BY MODIFIED CRAFT LIGNIN
     改性木材硫酸盐木质素制备染料分散剂的研究
短句来源
     A new absorbent, sulfhydryl-lignin(LS-SH), for adsorption of heavy metal ions was prepared with an industrial sulfate ignin.
     以工业硫酸盐木质素(LS)为原料,合成一种新型重金属离子吸附剂—巯基木质素(LS-SH)。
短句来源
     The spherical lignin beads were prepared by applying reverse-phase suspension polymerization technique with sulphate lignin as raw material.
     以硫酸盐木质素为原料,利用反相悬浮技术制备出球形木质素吸附剂。
短句来源
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  sulfate lignin
The aggregation stability of sulfate lignin in aqueous AlCl3 and Al2(SO4)3 solutions within wide ranges of pH values and coagulant concentrations was studied by spectrophotometry.
      
Study of the Mechanisms of Interaction between the Hydrolysis Products of Titanyl Sulfate and Sulfate Lignin
      
Hydrolysis products of TiOSO4 · 2Н2О depending on pH was shown to differently affect an aggregation stability of sulfate lignin.
      
On the Inhomogeneity of Aqueous Alkaline Solutions of Sulfate Lignin and Wood Resin
      
By the dynamic light scattering technique, it was shown for the first time that sulfate lignin, wood resin, and their mixtures are dissolved as nanoparticles in an aqueous alkaline medium (pH 12.7) at temperatures from 293 to 333 K.
      
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  kraft lignin
Recovery of Kraft Lignin from Aqueous Solutions with Oxotitanium Sulfate, Aluminum Sulfate, and Their Mixture
      
Coagulation recovery of kraft lignin from aqueous solutions with oxotitanium sulfate, aluminum sulfate, and a composite coagulant based on their mixture was studied in a wide range of coagulant concentrations and solution pH values.
      
Influence of Adsorption of Lignosulfonates on Kraft Lignin in the Presence of Tall Oil on Separation of Water-Tall Oil Emulsion
      
The values of absorption of lignosulfonates from aqueous solutions on kraft lignin were determined depending on the molecular weight of lignosulfonates and content of tall oil in the suspension.
      
Influence of the Kraft Lignin Concentration on the Efficiency of Its Coagulation Recovery from Aqueous Electrolyte Solutions
      
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This paper deals with the uti1ization of 1ignosulfonat, sulfatelignin. alkaline Jignin and hydrolytie. lignin in various fields.

本文综述了木质素磺酸盐(LS),硫酸盐木质素(SL),碱木素(KL)和水解木质素(HL)在化工、农医、高分子材料、建筑材料、油井钻探、染料、水处理、饲料、皮革等方面的利用。

By demethylating kraft lignin the number of reactive sites with formaldehyde is increased and its reactivity towards formaldehyde is also increased because of catechol formation in the lignin structure. Through demethylation the lignin can be made more reactive than phenol itself. When add the demethylated lignin dissolved in an alkaline so-lution,together with the required formaldehyde ,directly to the adhesive formulation,the resol intermediate is formed during hot pressing and the press time is not increased.It...

By demethylating kraft lignin the number of reactive sites with formaldehyde is increased and its reactivity towards formaldehyde is also increased because of catechol formation in the lignin structure. Through demethylation the lignin can be made more reactive than phenol itself. When add the demethylated lignin dissolved in an alkaline so-lution,together with the required formaldehyde ,directly to the adhesive formulation,the resol intermediate is formed during hot pressing and the press time is not increased.It is possible to substitute phenol completely with demethylated lignin and obtain an accept-able plywood adhesive. The cost of producing demethylated lignin would be about half the cost of phenol.

硫酸盐木质素经脱甲基增加了与甲醛反应的活性,且因在木质素结构中形成了邻苯二酚结构,其反应性能较苯酚更活泼。溶于碱溶液的脱甲基木质素与甲醛一起直接加入粘合剂中,热压时,不增加热压时间。有可能以脱甲基木质素完全取代酚并得到满意的胶合板粘合剂,脱甲基木质素的生产成本约为苯酚的一半。

Oxidative ammonolysis reaction of wheat soda lignin and wood kraft lignin was studied.Analysis of pH change and nitrogen compounds in reaction products show that the nitrogen content of modified lignin was up to 10.70% and 13.43%,respectively, half of which was inorganic nitrogen.The optimum reaction time for wheat and wood alkali lignin at 1 MPa and 140℃ was 30 and 45 min,respectively.

对麦草碱木质素和木材硫酸盐木质素的氧化氨解反应进行研究。对反应产物pH值的变化及氮化物的组成分析结果表明 ,改性木质素的总氮含量分别可达 1 0 .7%和 1 3.43% ,总氮中有近一半是无机氮。在 1MPa氧压和 1 40℃条件下麦草和木材碱木质素的最佳反应时间分别为 30min和 45min。

 
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