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我国阻垢剂的研究进展 总被引:8,自引:1,他引:7
介绍了阻垢剂的4种阻垢机理,即螯合增溶作用、凝聚与分散作用、静电斥力作用、晶体畸变作用,综述了天然聚合物阻垢剂、含磷类聚合物阻垢剂、共聚物阻垢剂、绿色新型阻垢剂的性能及特点,重点对绿色新型阻垢剂聚环氧琥珀酸和聚天冬氨酸进行了讨论,并展望了阻垢剂的发展方向。 相似文献
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绿色阻垢剂的研究进展 总被引:15,自引:0,他引:15
介绍了具有较高阻垢活性、良好生物降解性、无毒性的被誉为绿色阻垢剂的类型和性能 ;阐述了该类阻垢剂在国内外研究的现状及发展的方向 ;比较了不同阻垢剂在相同条件下的不同阻垢效果 ;并分析了该类阻垢剂的阻垢作用机理及具有最佳阻垢作用的相对分子质量的范围 . 相似文献
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重点阐述了锅炉用缓蚀阻垢剂(锅宝)的作用机理、配方筛选、评价方法、主要性能和使用方法。用户评价表明锅宝是一种优秀的锅炉用缓蚀阻垢剂。 相似文献
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我厂3号回转窑(Φ4m×60m)生产线在1996年年底由SP窑(产量912t/d)改为NSP窑(产量1320t/d),预分解系统为四级旋风预热器带离线式分解炉 相似文献
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Conclusions It is significant that the purification on a single passage of viscose through porous ceramic corresponds to the result of a two-stage filtration of it in industrial filter-presses with standard fillings.Kiev Combine. Kiev Technological Institute of Light Industry. Translated from Khimicheskie Volokna, No. 3, pp. 20–22, May–June, 1969. 相似文献
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乙烯酮(双乙烯酮)是十分重要的化工中间体,其下游产品较多。江苏某化工厂开发生产乙烯酮(双乙烯酮)下游产品三十多个,年生产规模三万多吨,是国内以乙烯酮(双乙烯酮)为中间体生产精细化学品的综合骨干企业。针对乙烯酮(双乙烯酮)下游产品废水特点,该厂结合企业实际,开展了产品优化,结构调整,清洁生产,资源循环利用,节水降耗等工作,从源头削减了污染物的生产。同时投资二千多万元新建预处理装置三套,6000m3/d废水生化处理装置一套,使全厂乙烯酮(双乙烯酮)下游产品的废水得到了有效的治理。 相似文献
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A refined nonlinear value of the main parameter of a material, i.e., the elongation modulus versus the instant temperature value, was suggested for introduction into the computational algorithm of tempering stresses. 相似文献
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The miscibility of various amorphous polybutadienes with mixed microstructures of 1,4 addition units (cis, 1,4 and trans 1,4) and 1,2 addition units have been investigated. The studies here involved optical transparency, differential scanning calorimetry, and small angle light scattering. It was found that a 90 percent (cis) 1, 4 addition polybutadiene was immiscible with high (91 percent) 1,2 addition polybutadiene. Reduction of the 1,2 content to 71 percent induced an upper critical solution temperature (UCST) with the cis 1,4 polymer. Polybutadienes with 50 percent and 10 percent 1,2 contents were miscible above the crystalline melting temperature of the cis 1,4 polybutadiene. Immiscibility of the 91 percent 1,2 addition polymer was also found with a 10 percent 1,2 polybutadiene. The latter polymer also exhibits an UCST with the 71 percent 1,2 polymer. The results are used to interpret the characteristics of blends of polybutadienes of varying microstructure. 相似文献