石膏的

Based on quality analysis of gypsum slurry,the factors influencing on the quality of desulfurized gypsum are studied.

在此基础上，分析了脱硫石膏和天然石膏的成分，说明脱硫石膏的可利用性，并结合国内外的相关资料，介绍了脱硫石膏在工业、农业上的一些用途。

In order to expand the utilization methods of desulphogypsum and meet the increasing need of α-hemihydrate gypsum, this paper studies the reasonable autoclave process of α-hemihydrate gypsum made from desulphogypsum .

为了扩大脱硫石膏的应用范围，满足α半水石膏日益增加的需求，本文试图通过蒸压法摸索脱硫石膏制备α半水石膏的合理生产工艺，并对影响其物理力学性能的一些因素进行了分析。

Research on desulphogypsum fly -ash binder;2. In order to expand the utilization methods of desulphogypsum and meet the increasing need of α-hemihydrate gypsum, this paper studies the reasonable autoclave process of α-hemihydrate gypsum made from desulphogypsum .

为了扩大脱硫石膏的应用范围，满足α半水石膏日益增加的需求，本文试图通过蒸压法摸索脱硫石膏制备α半水石膏的合理生产工艺，并对影响其物理力学性能的一些因素进行了分析。

The result showed that the one-valence cationsaccelerate the hydration process of α-hemihydrate gypsum greatly because they improvethe dispersed degree of α-hemihydrate gypsum particles due to the remarkable effect ofincreasing theζpotential; the effects of bivalent and trivalent cations on ζpotentialdecrease in turn, compared with monovalent cations, the effects on both the disperseddegree of α-hemihydrate gypsum particles and the setting time of paste are little.

研究还表明：由于一价阳离子能较大程度地提高石膏浆体的ζ电位，因而有效地提高了石膏颗粒的分散程度，对α半水石膏的水化加速作用很大，而二、三价离子对石膏浆体的ζ电位影响依次减小，对半水石膏颗粒的分散程度和浆体凝结时间的影响均不如一价阳离子作用大。

Taking phosphogypsum from factory as the raw material,the possibility of transformation into plaster of paris is studied by the experiments of chemical analysis,calcining technology,check test.

以磷酸厂废渣——磷石膏为原料，通过化学成分分析、磷石膏炒制、对比研究等实验，探讨了转化为建筑石膏的可能性。

The chemical activating mechanism of UA is that CG can stimulate pozzolanicity more effective than gypsum because of higher solubility and looser crystal structure; but CG has poor property on retardation setting, and this shortage can be solved by mixing with gypsum; CS can offer alkali activity, which can depolymerize silica and aluminum glass, and benefit for other activity methods and overcome the disadvantage of HF on setting time; Sodium sulfate improves early strength greatly but loses the final strength. NF can improve both early and final strengths.

联合激发技术的化学激发机理是，煅烧石膏溶解度高及晶体结构松弛，比天然石膏的活性激发效率高，但降低石膏的缓凝作用，与天然石膏混合既可提高活性又能保持缓凝作用；干法电石渣提供碱激发，促进高钙灰中硅、铝玻璃体解聚，并克服高钙灰对凝结时间的不利影响；硫酸钠虽然早强作用明显，但使后期强度倒缩，NF使各龄期活性都得到提高；磨细的物理激发使高钙灰大颗粒中的CaO和富集碳组分被磨细、分散，活性增加而危害性降低。

A new technology of direct fluidizing calcination for FGD gypsum is introduced in this paper. The technology is able to calcine FGD gypsum homogeneously, to control the quality easily, to produce plaster with high compressive strength and bending strength.

综合国内外石膏焙烧技术的发展，并结合脱硫石膏的物性特点，以及一定的焙烧实践经验，本文介绍了一种新型的脱硫石膏直接流化焙烧技术，该技术具有物料受热均匀、产品质量易控制、焙烧设备运行可靠等特点，通过该技术所焙烧的建筑石膏相均匀性好，强度高。

According to the spirit of the CPC Central Committee 11th Five-Year Plan, the construction of a harmonious society, the construction of a conservation-oriented, sustainable development, appointed in accordance with the spirit of national wall materials innovation, protection of land cancellation clay brick, the protection of land resources, development of energy-saving and environment-friendly, high-strength lightweight wall Materials, the company's newly developed hollow plaster mold block and complete sets of equipment, in my mature technology companies plastic-and complete sets of equipment, in my mature technology companies plastic | mold and complete sets of equipment, to a mature technology company Plastic mold material, not the characteristics of gypsum, one stroke Zhigao Dian occupied the same industry, the technology to declare national patent for power plants, DAP plants, steel, electrolytic aluminum plant, the flow from gypsum, phosphogypsum, Fly ash, to solve a difficult problem, recycling-and created a good profit.

根据党中央十一五规划精神，建造和谐社会，建造节约型，可持续发展国家，根据国家墙改委精神，保护土地取消粘土砖，保护土地资源、发展节能型，环保型，轻质高强墙体材料，本公司最新研制的空心石膏砌块模具及成套设备，以我公司成熟的技术塑胶聚及成套设备，以我公司成熟的技术塑胶|模具及成套设备，以我公司成熟的技术塑胶模具材料，不占石膏的特点，一举占领了同行业至高点，本技术以申报国家专利，为发电厂、磷酸二铵厂、钢厂、电解铝厂、脱流石膏、磷石膏、粉煤灰，解决了一大难题，变废为宝，创造了可喜的利润。

The expansive prospect of preparing calcium sulphate whisker from marine gypsum is also pointed out in the article.

介绍了盐石膏的理化性质，综述了我国海盐工业废渣盐石膏在水泥、石膏建材等建筑领域以及对盐石膏的深加工等方面的综合利用研究现状，并指出利用盐石膏制备硫酸钙晶须具有广阔的发展前景。

The retarding mechanism of different retarders was explored by analysing the concentration of Ca2+ in the hydrating system, the morphology of gypsum crystals and effect of pH value on the retarding efficiency of citric acid with some morden instruments, such as Fire Atomic Absorption Spectrophotometer, Scanning Electron Microscope and so on.

论文对石膏的微结构和缓凝机理进行深入研究，研究通过原子吸收光谱仪和扫描电镜等现代仪器分析技术分析不同缓凝剂对石膏水化过程中Ca2+浓度和石膏结晶形态的影响以及pH值对柠檬酸缓凝效果的影响，探讨不同缓凝剂的缓凝机理，为今后研制更适合石膏刨花板生产的缓凝剂奠定理论基础。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。