共查询到19条相似文献,搜索用时 125 毫秒
1.
2.
利用曼尼奇反应原理 ,制备了多胺基磷酸钠陶瓷助磨剂 ,系统的研究了原料配比、磷原料以及胺原料种类、反应温度、反应时间等助磨剂合成工艺对其助磨效果的影响规律。结果表明 :所制备的助磨剂对石英、滑石和锆英石等陶瓷硬质原料具有明显的助磨效果 ,优于传统的工业助磨剂。较佳的助磨剂制备工艺为 :以乙二胺和五氯化磷为原料 ,胺∶甲醛∶磷原料的摩尔比 =1∶4∶4 ;反应回流温度 10 5℃ ,反应时间 1.5 - 2h。 相似文献
3.
4.
笔者设计、合成和配制出一种由改性腐植酸、聚羧酸钠和无机盐组成的高分子型复合陶瓷浆料减水助磨剂。通过实验和工厂的生产结果表明,所研制的减水助磨剂可使球磨时间减少25%,浆料含水率低于31%,节能效果显著。 相似文献
5.
6.
7.
8.
9.
高纯镁砂是重要的耐高温材料,氧化镁陶瓷则广泛应用于透光材料领域,对两种材料的生产工艺开展研究具有重要理论和实际意义。本文系统地综述了利用菱镁矿、卤水生产高纯氧化镁及镁砂的各种技术,以及氧化镁陶瓷的烧结方法和烧结助剂对烧结过程的影响;介绍了菱镁矿制备高纯镁砂,卤水沉淀法、卤水直接热解法制备高纯氧化镁,以及电熔法制备高纯镁砂等技术。指出了每种生产技术的优缺点及今后的研究与发展方向。介绍了常压烧结、热压烧结、热等静压烧结、放电等离子烧结、微波烧结和真空烧结等氧化镁陶瓷烧结技术及其进展,总结了烧结助剂对烧结过程的影响及其机理,指出氧化镁陶瓷未来的研究关键主要在于对粉体合成技术、致密化烧结技术及烧结助剂的研究。 相似文献
10.
11.
12.
介绍不同的研磨介质在油墨中的应用,并讨论了研磨介质的种类,体积比及尺寸对基料细度的影响。实验表明选择合适的研磨介质能提高分散研磨的效率。 相似文献
13.
以磷钼酸铵为敏化剂,采用固相研磨法合成了磷钼酸铵敏化光催化剂TiO_2-PMoN。通过X射线衍射、红外吸收和紫外-可见吸收光谱法对样品进行表征,以罗丹明B为模拟污染物,评价其光催化活性。结果表明,所得TiO_2-PMoN催化剂为锐钛矿型和金红石型的混合类型,与纯磷钼酸铵相比,TiO_2-PMONH_4光催化剂在(360~850)cm~(-1)的吸收出现了宽化现象,磷钼酸铵敏化使TiO_2在可见光区的吸收增强,吸收边红移,太阳光照射40min,TiO_2-PMoN光催化降解罗丹明B的脱色率为95%。 相似文献
14.
15.
本文以三乙醇胺、改性丙三醇、十二烷基磺酸钠为主要原料复合一种新型的助磨剂,此助磨剂对矿渣具有良好的助磨效果,通过实验发现,当改性丙三醇是十二烷基磺酸钠4倍摩尔配比关系时,助磨效果最好。实验还研究了助磨剂对不同配比矿渣水泥的助磨效果,结果发现当矿渣比例达到50%,助磨剂掺入量在0.04%情况下助磨效果也显著。实验测试了此助磨剂对水泥性能影响以及对水泥颗粒分布的影响,并且,通过XRD和SEM分析了对水泥水化的影响。 相似文献
16.
Experiments were performed to grind scrap tire peels into fine powders in the cryogenic grinding process. The temperature distribution within a scrap tire peel was calculated by a numerical method of transient heat transfer. The optimal temperature of the compressed air in the vortex mill was also found by experiments and compared with calculated results. Calculations were in good agreements with the corresponding experimental data. The proposed calculating method may be applied in the design of the cryogenic grinding process for recovering the cold-energy stored in the fine powders. 相似文献
17.
Kuk Cho Hankwon Chang Dae Sup Kil Byoung-Gyu Kim Hee Dong Jang 《Journal of Industrial and Engineering Chemistry》2009,15(2):243-246
A one-step grinding process to obtain CaCO3 nanoparticles from a micrometer-sized CaCO3 was studied. A high-speed beads mill was employed to grind the particles, and poly(acrylic acid, sodium salt) was used to disperse the ground particles. The main parameters, which were investigated, were the slurry concentration, the rotor speed, the bead size, and the surfactant concentration. The larger bead size, higher slurry concentration, and faster rotor speed showed higher grinding efficiencies. However, there was severe agglomeration of the ground particles resulting in larger secondary particles as the grinding time increased after the certain point. The dispersion and enhanced grinding of particles were achieved by the surfactant. The particle size distribution of the ground particles had a narrow peak around 190 nm that was measured by the diffraction method. The primary particle size of the ground particles was around 40 nm. 相似文献
18.
转炉钢渣粉磨性能的实验研究 总被引:15,自引:1,他引:15
对转炉钢渣粉磨性能进行了实验研究。结果表明,钢渣的易磨性比熟料差,但优于矿渣。在钢渣所合矿物中,硅酸盐矿物易磨,含铁矿物难磨。通过粉后方式,可以将钢渣中具有胶凝活性的矿物选择性分离出来。 相似文献