石膏的

Preparation of dehydrated gypsum phases of β-series in forms of hemihydrates, anhydrite and anhydrite in laboratory is presented in the paper.

本文介绍了β系列三种石膏脱水相——半水石膏、无水石膏和无水石膏的试验室制备条件。

This paper used anhydrite associated with ferruginous mineral from Cheng Chao iron ore as primary raw material to develop successfully a new type of light wall material under the action of G N M J four compound excitation system and FX compound reinforcing fibre with suitable forming procedure.

本研究以武钢矿业公司程潮铁矿共生的硬石膏为主要原料，在广泛探索的基础上，筛选出G－N－M－J四元复合激发体系，有效地激发了硬石膏的活性，在FX复合纤维的增强作用下，采用合适的成型工艺条件，成功地研制出一种新型的轻质墙体材料—纸面硬石膏板，对试制样品的测试结果表明，各项性能达到或接近以半水石膏为主要原料的纸面石膏板的国家标准，为综合利用程潮铁矿的矿物资源开辟了新的途径，对硬石膏在新型建筑材料领域中的开发应用，更有着开拓性的意义。

Preparation of a high-strength α-hemihydrate gypsum based on complex pastern material is studied by using a complex active agent of industrial waste to improve the crystal properties of hemihydrate gypsum and to eliminate impurities' effect on the properties of products of phosphorous gypsum ,such as phosphorous and fluorine.

以磷石膏为基体原料制备高强α-半水石膏基复合材料，利用工业废渣中的激发剂来改进半水石膏的结晶性质，以消除磷石膏中磷、氟等杂质对磷石膏制品性能影响，同时激发剂使具有潜在活性的矿渣得以活化，制备的低温陶瓷化磷石膏基复合材料制品兼具陶瓷和石膏性能；SEM图片表明，制备的复合材料水化后晶体结构粗大、致密

PG was used to produce different types of binding materials as β-hemihydrate gypsum,Ⅱanhydrate gypsum and α-hemihydrate gypsum and the relevant factors were also studied systematically including the pretreatment methods of raw material, preparation process, the material properties, the mixing proportions, curing conditions and the hydration mechanism of different systems.

对磷石膏制备胶结材进行了深入、系统研究，包括β-半水石膏、Ⅱ-无水石膏的原料预处理方式、制备工艺、性能及其复合胶结材配比、养护、性能与水化硬化机理，α-半水石膏的制备工艺及其性能影响因素，二水磷石膏改性胶结材的配比、养护、性能及其改性机理。

The mechanism of crystallization of flue gas desulfurization sludge waste into α form calcium sulfate hemihydrate through differential scanning calorimetry is obtained.

借助差示微分扫描量热仪等分析手段，得出了溶液结晶法从烟气脱硫残渣中制备α型半水石膏的结晶机理：烟气脱硫石膏首先经过脱水生成β型半水石膏，再由β型半水石膏转化为α型半水石

It shows that gypsum is stable at the pressure less than 407 MPa; and then gypsum begins to dissolve with the increasing pressure. Gypsum stops dissolving and phase transition happens (gypsum-bassanite) to some degree. After phase transition, bassanite disappears with the rising pressure.

结果表明：压力小于407 MPa时，石膏的形态无明显变化；随着压力的升高，石膏开始溶解，溶解至一定程度，石膏发生了向半水石膏转化的相变；相变完成后，半水石膏继续溶解至消失。

Gypsum mine owned companies rich reserves of high quality, an area of 3 square company, has proven reserves of 390 million tons, the annual extraction capacity of 300,000 tons, gypsum dihydrate of the total reserves of 40 percent, of which an egg cream Dihydrate 10-15% of gypsum, in more than 95 percent grade, crystal water in more than 18 per cent, accounting for two gypsum plaster dihydrate of 30-40 per cent, with an average grade of 85 percent or more, crystal water in more than 17 per cent, 3 Sulphur dioxide in more than 40 percent, 3 gypsum, with an average grade of 70 percent or more, the crystallization of water in 13 percent or more, three more than 35 per cent in sulphur dioxide, widely used in cement industry.

公司所属石膏矿山储量丰富、品质优良，占地3平方公司里，已探明的储量为3.9亿吨，年开采能力为30万吨，二水石膏占总储量的40%，其中一级蛋膏占二水石膏10-15%，品位在95%以上，结晶水在18%以上，二级膏占二水石膏的30-40%，平均品位在85%以上，结晶水在17%以上，三氧化硫在40%以上，三级石膏，平均品位在70%以上，结晶水在13%以上，三氧化硫在35%以上，广泛用于水泥行业。

In this study, gypsum used in gypsum moulde is studied so as to study further the influence of a gypsum and plaster, a gypsum and desulphurization gypsum , raw gypsum and gpsum and anhydrite with gypsum on modle gypsum. All conclusions are developmental to the development of porcelain industry.

我们对价格较低的β-半水石膏粉进行各项改性研究，希望以此为基础，再探讨α-半水石膏与天然建筑石膏、α-半水石膏与脱硫石膏混合以及生石膏与天然建筑石膏、无水石膏与天然建筑石膏混合对模型石膏的影响，还讨论了石膏细度对模型石膏的影响，所有的研究结果对我国陶瓷产业的发展有一定的借鉴意义。

In this study,α gypsum used in gypsum moulde is studied so as to study further the influence of a gypsum and plaster,α gypsum and desulphurization gypsum,raw gypsum and gpsum and anhydrite with gypsum on modle gypsum. All conclusions are developmental to the development of porcelain industry.

我们对价格较低的β-半水石膏粉进行各项改性研究，希望以此为基础，再探讨α-半水石膏与天然建筑石膏、α-半水石膏与脱硫石膏混合以及生石膏与天然建筑石膏、无水石膏与天然建筑石膏混合对模型石膏的影响，还讨论了石膏细度对模型石膏的影响，所有的研究结果对我国陶瓷产业的发展有一定的借鉴意义。

After analysing good applied foreground of FGD gypsum,the paper indicates the problems that will meet in using FGD gypsum,and puts forward synthetical measures in dealing with FGD gypsum.lt includes: stabilizing the outputs and quality of FGD gypsum in projecting and running FGD equipments;the problems and treatment measures that FGD gypsum is applied to cement retarder;establishing the standards of FGD gypsum that fits Chinese situation consulting criterions of FGD gypsum abroad as soon as possible;calculating the short amount of gypsum in some provines and regions in China and the feasibility of technology and economy about FGD gypsumus use;suggesting that our nation come on some policies that encourage coal-burning powerplants to install FGD equipments , put FGD gypsum to rational use, in order that it will further develop multiple use of FGD gypsum in China.

在分析了我国脱硫石膏的良好的应用前景的同时，本文也指出了脱硫石膏推广应用中可能会遇到的问题，提出了一些综合处理措施。这包括脱硫装置设计和运行烟气脱硫设备过程中稳定脱硫石膏的产量和质量、脱硫石膏用作水泥缓凝剂的问题及处理措施、参考国外脱硫石膏产品质量标准尽快制定适合我国国情的脱硫石膏产品质量标准、推算我国缺少石膏资源的省区石膏的短缺量以及利用脱硫石膏的技术经济可行性，建议国家出台有关鼓励燃煤电厂安装烟气脱硫装置和合理利用脱硫石膏的一些政策，以进一步推进我国脱硫石膏的综合利用。

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。