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- prdhnitic anhydrite 苯连四酸酐
- Locally dolomite and anhydrite are important as cements. 局部地方白云石和硬石膏也是重要的胶结物。
- The anhydrite caused spherulite size of PP diminishing,the quantity increasing. 硬石膏的加入使得球晶尺寸减小,数量增加。
- Anhydrite products are lacunaris materials, proning to absorb water. 硬石膏制品是一种多孔材料，吸水能力非常强。
- Nodular anhydrite and enterolithic and chicken-wire structures themselves do not signify the Sabkha environment. 结构状硬石膏、香肠状和网眼状构造本身并不表示萨勃哈环境。
- Locally dolomite and anhydrite are important as cements, together with minor authigenic quartz. 在局部地方白云石和硬石膏也是重要的胶结物；还有少量自生石英。
- The research showed that the modif ied anhydrite changed from polarity to nonpolarity. 结果表明:改性后的硬石膏表面从极性变成了非极性。
- Some marlstone and anhydrite barriers exist in the reservoir, and become some non-connected oil-water system. 油藏中存在若干泥质灰岩和膏盐的隔夹层，形成多个连通不畅的油水分布系统。
- Anhydrite is a rich raw material but not used widely because of its poor gelling property. 摘要硬石膏目前在中国储量较大，但是由于胶凝性能差，利用率不高。
- The FT-IR indicated that the modifers were combined to the surface of anhydrite powder by chemical bond. FT-IR分析表明,硬脂酸与硬石膏的表面以化学键结合。
- Those who only produced maleic anhydrite with high profit are no longer optimistic about their future. 该行业高利的状况一去不返,属于只生产顺酐类型企业前景不佳。
- The rheological behavior of the anhydrite/PP composites was studied by the modified and un-modified anhydrite. 研究了硬石膏及其表面改性对聚丙烯(PP)流变行为的影响。
- The growth rate of maleic anhydrite and fumarate from 2001 to 2003 are respectively 20. 2003年我国顺酐、富马酸生产能力增长速度分别为20。
- In the porosity reservoir with anhydrite, the formation water is rich in sulfate and poor in heavy metal ion. 在与硬石膏的多孔性水库，形成水在重金属的离子的硫酸盐和贫寒上是富有的。
- Catalyst system for hydrogenation of maleic anhydrite and corresponding products are introduced. 摘要介绍了顺酐加氢反应的催化体系以及生成相应产物的情况；
- Under the circumstances, gypsum or anhydrite could accumulate to form beds many meters thick, without any co-precipitation of halite. 在这种环境下，石膏或硬石膏可以堆积成许多米厚的岩层，而没有任何石盐伴生沉淀。
- The H 2 S in the study area is formed by thermo chemical sulphate reduction(TSR)of the anhydrite underlying the gas r eservoirs. 这些H2S为飞仙关组气藏附近的硬石膏经硫酸盐热化学还原作用(TSR)而成。
- And water rich organic acid discharged from rock when gypsum changed into anhydrite, which dissolves part of the rock and form secondary porosity. 同时，石膏向硬石膏转化时，排出大量富含有机酸的水，有利于形成次生孔隙带。
- Based on the analysis on activation energy between anhydrite and hydrocarbon, the heavy hydrocarbons will be firstly consumed in the TSR process. 通过烃类与硬石膏反应的活化能分析可知，TSR反应是一个优先消耗重烃的过程。
- The preparation of anhydrite cement from phosphogypsum produced as the waste of phosphoric acid manufacture has been studied. 利用化工副产品磷石膏制硬石膏水泥的方法。
