查询词典 pulping

In this paper the pulping of wheat straw with Na〓SO〓, HCHO and AQ was studied. The objectives of this study are to increase pulp yields, physical strength and bleachability and to produce lignosulfonate which has excellent solubilities and surface activities.

本研究采用亚硫酸钠、甲醛和蒽醌对麦草制浆，目的在提高草浆得率、物理强度和漂白性能的同时，得到水溶性和表面活性较好的木素磺酸盐，为草木素在工业上的应用开辟一条道路。

Two-year-old plantation-grown Melaleuca leucadendron from Vietnam was evaluated for its pulpability, including aspects of fiber morphology, chemical analyses, pulp properties, bleachability, and paper qualities, to establish the suitability of the material as a potential source for kraft pulping.

本文探讨速生越南产二年生白千层木材之制浆适性，进行纤维形态性质、化学组成分析及由制浆性质、漂白性及纸浆品质各项观点来评估其做为制浆原料之适用性。

The chemical compositions ,fiber morphology and physical pulping characteristics of Broussonetia papyrifera bark produced in dry-hot valley of the Jinshajiang River were analyzed.

对金沙江干热河谷区构树韧皮纤维的化学组成、纤维形态和成浆物理性能进行了分析，结果表明：构树韧皮的木素含量低，纤维素含量较高，达43。

Screening of complex-enzyme-producing strains on Broussonetia papyrifera white bast fiber ;2. According to the classification of pectinase and its action mechanism,the process conditions and effect of pectinase on bio-pulping of bast fiber material are introduce.

综述了果胶酶在制浆造纸上应用的研究进展，从果胶酶系的分类和脱胶机理的角度出发，介绍了果胶酶及其相关微生物在韧皮纤维原料酶法和发酵浸渍法制浆中的作用条件和作用效果，着重介绍了果胶酶在湿部化学上降低阳离子需求量的作用，同时讨论了外界因子对其提高细小纤维和填料留着率效果的影响，并指出果胶酶对纸浆物理性能的影响。

The black liquid is concentrated via evaporation in the first step of the pulping and alkali recovery work section. The effect of steam temperature control plays a decisive role in caustification and combustion work section.

制浆碱回收蒸发工段第一步就是通过蒸汽将黑液进行浓缩，蒸汽的温度控制效果对后续燃烧工段和苛化工段起着举足轻重的作用。

In the course of establishing standard operating procedure, The temperature, time , the feasibility without decorticating and efficiency were investigated when alliinase was deactivated used a dry heating apparatus in tunnel type, but the efficiency can be achieved less than 70%, need to be improved; The reformative cribriform plate has been proved to be good in practice result in pulping enzyme-deactivated garlic without dehulling; The extraction efficiency achieved more than 90% when volumic ratio of 20% alcohol and water is 3 I 1 and 2:1 was adopted to extract alliin two times respectively; During exact filtration, the ratio of diatomite in precoating and filtration was 3% and 1% respectively, the losses of alliin adsorbed by diatomite in extraction solution were not remarkable. In the stage of alliin isolation by ion exchange resin, three simple and sensitive detected measures were successfully adopted to control the whole process; the efficiency of alliin isolation was similar to laboratory results; The alliin yield was over 50% in acidic fractions and the purity quotient of alliin achieved above 50% after drying; Furthermore, the phenomenon was found that losses of alliin were seriously affected by the temperature and time periods in concentration.

在制定中试生产标准操作规程中，考察了隧道式干热烘干机杀酶的温度、时间和效率，干热灭酶效率只能达到70%，待改进；改良的筛板使带皮打浆效果良好，证明非脱皮熟蒜打浆的可行性，减少了工序，降低了成本；提取过程中，20%酒精分别1∶3和1∶2提取2次，效率达90%以上；硅藻土板框过滤时，探索了精滤过程中提取液中预涂和过滤时硅藻土的比例分别为3%和1%，并考察硅藻土对蒜氨酸的吸附损失，滤液澄明度良好，蒜氨酸损失很少；在树脂吸附分离阶段，采用三种简便灵敏检测手段控制生产过程，分离蒜氨酸的效果与实验室一致，酸性流分中蒜氨酸收率可达50%以上，干燥后蒜氨酸纯度达50%以上；试验发现浓缩蒜氨酸洗脱液时温度和浓缩时间对蒜氨酸损失的具有很大影响。

Results indicated that rate of delignification is 84.12% and pulp yield is 38.12% under the pulping conditions.

结果表明，该蒸煮体系对稻草木质素的脱除率达到85 。1 2 %，纸浆得率

Research was conducted on the AS-AQ pulping and the subsequent oxygen delignification of wheat straw.

研究了麦草AS-AQ法蒸煮工艺及后续氧脱木素工艺。

The decision making method of uncertain multi-attribute is applied to select bamboo species for constructing a project on 500 thousand mu(equivalent to 33350 hectare) pulpwood base of bamboo pulping paper in Jinghong.In detail,combined G with Zi based on OWA,it concludes that Z4=Lingnania distegia,Z2=Dendrocalamus hamiltonii,Gx1=Dendrocalamus giganteus,Gx2=Dendrocalamus peculiaris are finally selected as bamboo species for base target management;Z16=Dendrocalamus barbatus as prepared bamboo...

应用不确定多属性决策方法为拟建的《景洪竹浆纸项目50万亩竹子原料林基地》项目的热带大型丛生竹选择竹种，将多准则模糊决策方法的满意度G值和基于OWA算子的多属性决策方法的综合属性值Zi结合起来考察，最终选定：Z4=料慈竹，Z2=版纳甜龙竹，Gx1=龙竹，Gx2=金平龙竹4个竹种作为基地的目的经营竹种；Z16=小叶龙竹作为将来发展的储备竹种。

The fiber morphology and pulping and papermaking feasibility of Albizia falcataria and Gmelina arborea were investigated in the paper, also their main chemical compositions were determined.

摘 要：对进口阔叶木材南洋楹和石梓的化学成分、材性特点、纤维形态及制浆性能进行了研究。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。