磷石膏

分析磷矿中SiO2含量对磷石膏结晶的影响；

The influence of SiO_2in phosphoric rock on the phosphogypsum crystal is analyzed .

实验结果表明施用磷石膏可提高滨海盐土的脱盐速率，以混施效果最好。与对照相比达到了极显著差异水平（P0.01）；

The results showed that phosphogypsum accelerates the salt moving down and mixed phosphogypsum had a very significant difference ( P0.01 ) compared to the control ;

磷石膏CFB预分解系统的热力学分析

Thermodynamical analysis of CFB system for preliminary decomposition of phosphogypsum

以往的生产工艺主要是用焦炭还原磷石膏，而且产生的SO2尾气浓度较低。

The reduction reaction of Phosphogypsum used to by coke , and the SO2 concentration was low .

我国水泥强度检验方法如采用ISO标准或相当于ISO标准后，磷石膏制水泥装置将面临着严峻的挑战。

After adopting ISO standard to test cement strength , equipment for producing cement from phosphor will face the challenge .

NP肥＋磷石膏处理比单施NP肥处理产量显著提高。

The yields or crops in the treatments with NP fertilizers and phosphorus gypsum were higher than those in single NP fertilizer treatment .

使用Marsh筒法对分别掺磷石膏和天然二水石膏作缓凝剂的水泥与不同外加剂的相容性进行了研究。

The compatibility of different superplasticizers with cement that added phosphogypsum or natural gypsum as retarder was studied by means of Marsh Cone .

磷石膏分解渣碳酸化过程中CaS转化的反应机理分为气-液相反应和液-固相反应两种反应模式。

The reaction mechanism of CaS conversion in the carbonic acid process of phosphogypsum decomposition slag may be gas-liquid phase or solid-liquid phase reaction module .

通过添加结晶改良剂，获得了过滤性能良好的粗大石膏结晶，磷石膏过滤强度>600kg干渣/（m2·h）

Some crystal improvers can cause the bigger phosphogypsum crystals with a good filtration property 〔 filtrating intensity > 600 kg / ( m 2 · h ) dried material 〕 .

磷石膏分解的固相产物及气相产物分析表明，不同高硫煤粒径、反应温度、升温速率等条件对CaS生成具有重要影响。

It was showed that reaction temperature , coal particle size and heating rate had important influence on CaS generation by gas and solid productions analyses .

磷石膏DTA曲线在1100℃处出现吸热峰，说明此时的磷石膏已开始发生熔化与分解反应。

At 1100 ℃, there is a heat absorption peak in the DTA curves of phosphogypsum , which shows the phosphogypsum has beginning to melt and decompose .

静态还原炉内煅烧磷石膏生料时，煅烧物料中已含有大量熟料矿物的过渡相，XRD图谱也显示有熟料矿物的存在。

While the raw meal calcined in the the static reduction furnace , the products contains large amounts of clinker minerals in the transition phase , XRD also showed the presence of clinker minerals .

较高浓度有机酸、低浓度海泡石和磷石膏可以促进芦竹地上部对As、Cd、Pb的累积。

The accumulation of As , Cd and Pb in aerial parts of giant reed has obviously improved under the treatments with moderate concentration of organic acids , light concentrations of sepiolite and phosphogypsum , respectively .

介绍了化学石膏的来源及其综合利用，着重介绍了FGD（烟气脱硫）石膏、磷石膏、氟石膏、柠檬酸石膏等的综合利用。

This article introduces the origin and comprehensive utilization of the chemical gypsum , especially the gypsum from the generation of FGD , H_3PO_4 , HF , lemon acid and so on .

磷石膏中P2O5含量是磷石膏能否被建材工业利用的控制指标之一。

On phosphogypsum as the raw material of building material industry , its P_2O_5 content is one of the most important controlling indexes .

二水磷石膏粉煤灰复合胶结材（PGF）是直接将未经处理的磷石膏通过加入粉煤灰和激发剂改性制得的新型胶结材。

The composite binder of dihydrate phosgypsum and fly ash ( PGF ) is a new kind of binder made from unpretreated phosgypsum , fly ash and activator .

磷石膏分解生成CaS的单因素实验表明，煤的粒度、反应温度、物料C/CaSO4摩尔比和反应时间都是影响磷石膏分解生成CaS的重要影响因素。

The single factor experiment results of CaS generation in the process of phosphogypsum decomposition show that coal particle size , reaction temperature , C / CaSO4molar ratio and reaction time are important influence factors for the reaction .

本文所采用的化学方法是在土壤表面施加土壤结构改良剂，结构改良剂的主要成分为聚丙烯酰胺（PAM）与磷石膏（PG）。

The chemical regulation method studied in the paper applied soil conditioners to the soil . Polyacrylamide ( PAM ) and phosphor-gypsum ( PG ) are known to be good soil conditioners for maintaining soil structure and increasing infiltration .

由此，通过磷石膏边坡在10m与20m高度下不同坡率的稳定性分析，提出了磷石膏干法堆放边坡设计的坡率参考值，对于现行的建筑边坡规范是个很好的补充。

Thus , through stability analysis about phosphogypsum slope at 10m and 20m height and in different slope rate , the reference values are presented to design phosphogypsum slope rate and supplemented to the existing building criterion .

掺入适量粉煤灰和磷石膏以及少量的水泥即可制成标号M5至M15的热再生干混砂浆。

A new type of M5 ~ M15 recycled dry-mixed mortar was made from activity concrete powders mixed with appropriate fly ash , phosphogypsum and a little cement .

用两种无机非金属材料对磷石膏进行改质，使磷石膏中P2O5、F-、SO42-生成难溶于水的钙盐。

Modification of phosphorous gypsum with two inorganic non-metallic materials was conducted through the formation of hard-to-dissolve calcium salt from the P2O5 、 F - 、 SO42 - .

分析磷酸浓度、氨用量、中和度、磷酸中的SO3含量、磷石膏带入量、磷酸中的杂质对磷酸铵产品有效养分含量的影响；

The effects of phosphoric acid concentration , ammonia consumption , neutralization degree , SO_3 and phosphogypsum and other impurities in H_3PO_4on the available nutrients of AP are examined .

碳酸化反应的单因素实验表明，C02气体流量、液固比、反应时间都是影响磷石膏分解渣碳酸化生成CaS的重要影响因素，反应温度几乎不会有影响。

The single factor experiment results of the carbonic acid reaction show that CO2gas flow , liquid-solid ratio and reaction time are important influence factors for the reaction ; Reaction temperature almost has no effect .

本文论述了我省发展K2SO4生产的重要性，介绍了目前K2SO4的主要生产方法，着重指出用磷石膏和氯化钾制造K2SO4的经济意义和环境效益。

The paper describes the importance of K2SO4 development in Hubei province , summarizes current production technology of K2SO4 , and emphasizes that high economical and environmental benefit can be achieved producing K2SO4 from phosphogypsum and potassium chloride .

利用磷石膏为主要原材料，加入适当外加剂制成的磷石膏陶瓷材料，性能优良，抗压强度达80MPa以上，外观色彩美丽。

The Phosphate gypsum ceramic by the phosphate gypsum and the suitable additions has good properties , compress strength over 80 MPa , and its colour is very beautiful .

将磷石膏（CaSO4·2H2O）煅烧成能广泛应用于建筑领域的半水石膏（CaSO4·1/2H2O）是磷石膏综合利用的有效途径之一。

A effective way of phosphogypsum comprehensive utilization is to calcine the phosphogypsum ( CaSO 4 · 2H 2 O ) to stucco ( CaSO 4 · 1 / 2H 2 O ) which is widely used in the field of building material .

磷石膏复盐法制备硫酸钾工艺改进

Technical Improvement of Preparing Potassium Sulfate from Phosphogypsum by Compo-site-salt Method

磷石膏胶凝材料的生产磷石膏生产粉刷石膏的加工工艺研究

Study on the process of producing building gypsum plaster with phosphogypsum

磷石膏综合利用状况及对策分析

Analysis to Current Situation & Countermeasures about Comprehensive Utilization of Phospho-Gypsum

提高磷石膏在水泥系统中反应活性的研究

Study on Improvement of Reaction Activity of Phosphogypsum in Cement System