查询词典 lime-stone

The process waste of making PVC- carbide slag ,its main composition is Ca 2,can replaces the lime for causticization on the theoretics.

生产聚氯乙烯的厂家有大量废弃物——电石渣，其主要成分为Ca2，将电石渣用于碱回收苛化，试验，结果表明是完全可行的。

Lime is the first human application of cementitious materials.

石灰是人类最早应用的胶凝材料。

Cement plot experiment indicates that a mixture of 1 part phenyl mercuryacetate to 5 parts hydrated lime or 1: 15 and 1: 20 ethyl mercury chlor...

梢钥隙ㄆ浞啦≡霎a效果低於赛力散消石灰粉，在大田试验的条件下，每公顷纯收益只及赛力散消石灰粉的50%。

The invention discloses a synthetic using method of smelting high-furnace dust, which comprises the following steps: grinding the high-furnace dust with 1.5-15% zinc; proceeding magnetic cobbing; reclassifying to obtain the refined ferric ore; disposing ore tail through waste acid of titanium dioxide with 15-30% sulphuric acid; transmitting the zinc oxide in the solution at zinc sulfate pattern; separating solid and liquid solution through lime; obtaining refined zinc ore through S2-, CO32-, HCO3- ion; floating the immersed slag through neutral oil.

一种炼铁高炉炉尘资源综合利用的方法，含锌1.5％～15％的高炉炉尘经磨矿、磁选、重选回收铁矿物获得铁精矿，选矿尾矿用含硫酸15％～30％的钛白废酸处理，使其中的氧化锌以硫酸锌的形式转入溶液中，固液分离得出的溶液用石灰中和除铁后，再用S2-、CO32-、HCO3-离子沉锌获得锌精矿，浸出渣用中性油浮选获得炭精矿。该方法将钛白废酸和高炉炉尘结合在一起，使之成为互为所需的原料和试剂，有效地将两种废弃物变成了有价资源，较好解决了环境污染问题，同时又能产生好的经济效益。

Connection elbow s have been produced by an easy operation that horizontal cluster casting with core_up moulding technology has been adopted which consists of water glass and lime sand cured by CO2 for molding and coremaking with reasonably selected method while feeding through making the most of gating, hence all performance targets of products meeting desired technical requirements.

采用水玻璃石灰石砂CO_2硬化制型、芯，合理选择造型方法，采用组芯水平串铸工艺，充分利用浇道补缩铸件，生产操作方便，所获得的接线弯头性能等各项指标，均达到技术要求。

M/s. The following dimensionless relationships were obtained: Sh=2+0.073Re〓Sc〓〓〓 The desulphurization process by powder injection and blowing in RH refining of molten steel and its mechanism have been considered and analyzed. Based on the tworesistance mass transfer theory and the mass balance of sulphur in the system, a kinetic model for the process has been developed. The related parameters of the model have been reasonably determined. Modeling and calculations for the process by injecting and blowing the lime based powder flux under the assumed operating modes in a RH degasser of 300t capacity have been carried out using the model.

考虑颗粒与液流的相对速度，RH—PTB条件下熔池传质特性可由下式表征： Sh=2+0.073Re〓Sc〓考虑紊流中脉动速度引起的能量耗散，RH—PTB条件下熔池传质过程服从如下关系：〓将粉剂颗粒与钢液间的传质当作刚性的气泡与钢液间的传质处理，对RH—PTB过程有：〓考察和分析了RH喷粉脱硫过程及机理，基于双重阻力传质理论和体系内硫的质量衡算，建立了RH喷粉脱硫过程的动力学模型，确定了模型各有关参数，包括各传质系数和脱硫处理过程中钢液内参与脱硫反应的粉剂量等。

By flue gas of 2000m〓/h, some normal wastes (seawater, fly ash of power plant, basic waste water, etc) and lime are used on the research of dry, semi-dry, and wet FGD and its corresponding pressure and temperature decrease on stuffing tower, the effect of Ca/S ratio, inlet SO2 concentration, inlet flue gas temperature, and L/G ratio on desulfuration efficiency is analyzed, the instrument of dehumidify was studied by experiment and appropriate instrument of dehumidify was chosen.

在浙大热能所大约相当于1吨／小时出力的锅炉的尾部烟道上的多功能传热除尘脱硫一体化试验研究装置上，利用海水、电厂灰、碱性废水和石灰开展了半工业性的干法、半干法、湿法烟气脱硫研究，分析了Ca／S比、进口SO〓浓度、进口烟温、喷水量等因素对脱硫效率的影响，并探讨了湿法烟气脱硫中的烟温问题，对湿法烟气脱硫反应塔的阻力特性和除湿装置进行了试验研究，选取了合适的除湿元件。

The overlying 0.8 m thick packstone and lime mudstone has a characteristic dendroid appearance.

此面之上是0.8m 厚的浅水的局限台地相沉积，具有树枝状的构造和外貌。

It is convenient for sinter to be leached, and the secondary reaction appears little. The slurry after sinter leaching is transferred into autoclave for desilicification at about 170℃, and the siliceous modulus of solution reaches more than 200. Then some lime is added for deep-desilication at normal pressure, the siliceous modulus of solution increases more than 600 even if the Al2O3 content is more than 200g/L.The SiO2 coefficient in hydrate garnet from deep-desilication is more than 0.28. Under conditions of the addition of seed and application of novel technology of carbonization, the contents of Na2O and SiO2 in product are less than 0.37% and 0.025%, respectively.

实验结果显示：烧成的熟料溶出条件宽松，二次反应程度弱；溶出浆液在170℃左右直接进行加压脱硅，脱硅后溶液的硅量指数大于200，再加入适量的石灰进行深度脱硅，即使溶液中氧化铝浓度超过200g/L时，精液的硅量指数也大于600，且得到的水化石榴石中二氧化硅饱和系数大于0.28；通过加入晶种和采用新的碳酸化分解工艺制度，产品中的SiO2 含量降至0.025%， Na2O含量小于0.37%；加入表面活性剂，不仅能将碳分母液蒸发至Na2OT浓度大于300g/L，而且还可有效减缓表面上结疤的形成速度。

A kind of pellet desulfurization reagent made by pulverized coal ash and slaked lime was filled in the fixed-bed and the simulated moving-bed. The desulphur and dust collection performance of the reactor were studied.

本文研究了以粉煤灰、消石灰和石膏制备的粒状脱硫剂，在固定床和模拟移动床实验装置中对粒状脱硫剂层的脱硫和除尘性能进行了实验。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。