湿摩擦牢度提升剂FK-406的性能与应用

介绍湿摩擦牢度提升剂FK-406的性能及应用。提升剂FK，406使用于活性染料和硫化染料染色的纯棉和纯麻及其混纺织物，其湿摩擦色牢度提高1级以上，可达到3级以上，且对皂洗等其它色牢度无影响。处理时烘干温度以110℃为宜，pH值范围则为5．5～6．5。     

Effects of Pre- and Postharvest Chitosan Treatments to Control Storage Grey Mold of Table Grapes

ABSTRACT: The effectiveness of pre- and postharvest treatments with chitosan (0.1, 0.5, and 1.0%) to control Botrytis cinerea on table grapes was investigated. In postharvest treatments, small bunches dipped in chitosan solutions and inoculated with the pathogen showed a reduction of incidence, severity, and nesting of grey mold, in comparison with the control. Single berries artificially wounded, treated with the polymer, and inoculated with B. cinerea showed a reduced percentage of infected berries and lesion dia. Higher chitosan concentrations demonstrated greater decay reduction. All preharvest treatments significantly reduced the incidence of grey mold, as compared to the control. Table grapes treated with 1.0% chitosan showed a significant increase of phenylalanine ammonia-lyase (PAL) activity. Consequently, besides a direct activity against B. cinerea , chitosan produces other effects contributing to reduce decay.     

NON-IMPLICATION OF HOP α- AND β- ACIDS AS SOURCES OF SULPHUR COMPOUNDS IN BEER

Whereas hop oil terpenoids can give rise to organoleptically undesirable sulphur compounds in beer brewed using hops dressed on the bine with sulphur, the hop resin α- and β-acids and their transformation products appear incapable of reactions with sulphur under analogous conditions. The evidence indicates that the hop resins are not potential sources of sulphur compounds in beer     

船舶SO_x排放控制技术研究

应对IMO Tier III SOx排放法规,目前有三种技术方案,即使用低硫燃油、液化天然气以及废气洗涤技术。基于船舶动力装置和不同技术方案的具体特点,分别从成本、对发动机和环境的影响、应用可行性以及未来前景等方面,对上述三种硫排放控制技术进行了分析。分析表明:相比之下,废气洗涤方案是最可行和最经济的硫排放控制技术。     

丙酮酸缩肼叉-1,3-二噻茂烷的合成

报道了一种新型、低毒的有机硫杀菌剂——丙酮酸缩肼叉－1，3－二噻茂烷的合成，并对目标化合物的结构进行了分析。     

低浓度酸性气回收处理控制难点与对策

在简要介绍镇海炼化分公司两套采用常规Claus＋SCOT尾气处理硫磺回收装置（Ⅳ、Ⅴ硫磺）工艺技术特点的基础上，对处理低浓度酸性气（即H2S含量低，CO2含量高的酸性气）的工况变化进行分析，提出了处理低浓度酸性气时的主要控制难点和对策措施。低浓度酸性气中富含的CO2在反应炉中燃烧会直接导致反应炉温度下降和过程气中羰基硫含量的增加，如果不及时采取措施加以解决，将会造成装置能耗增加，并且使净化后尾气中H2S浓度和烟气中SO2排放浓度上升，影响装置高效、环保运行。以上不利影响可以通过改变反应器温度、优化脱硫单元操作、分流低浓度酸性气等对策加以克服。     

High temperature oxygen separation for the sulphur family of thermochemical cycles - part I: Membrane selection and flux testing

This work investigates the feasibility of applying high temperature oxygen separation to the sulphuric acid decomposition process, a common step in the Sulphur Iodine and Hybrid Sulphur thermochemical cycles for massive scale hydrogen production. Process simulations indicate that the decomposition yield can be increased from 62.3% to 90.1% by using a catalytic membrane reactor. Equilibrium calculations show yttria-stabilised zirconia (YSZ), combined with platinum electrodes, to be a candidate membrane for the separation process. Bespoke experimental apparatus was designed and commissioned in order to investigate the oxygen flux through YSZ membranes in the presence of sulphur dioxide, during external voltage application. Results from an experiment at 900 °C show that oxygen permeation through YSZ membranes occurs under these conditions. X-ray diffraction and impedance spectroscopy are used to investigate the reason for the oxygen flux decrease with time.     

金昌冶炼厂Ausmelt炉烟气单体硫超标浅析

对金昌冶炼厂Ausmelt炉烟气单体硫超标的原因进行了分析，介绍了采取的措施及取得的效果。     

高硫锰矿脱硫的试验研究

阐述了高硫锰矿对富锰渣高炉冶炼的危害，以及开发利用的迫切性。针对高硫锰矿的矿相结构、还原和氧化气氛及GTO法块状颗粒料脱硫进行了试验研究，结果表明：高硫锰矿的脱硫效果不仅与脱硫工艺方法及温度有关，而且还与某一高温下的停留时间有关，采用GTO法脱硫，突破了国内外利用高硫锰矿块状物(8～40mm)进行脱除高S的瓶颈，取得了突破性的脱硫效果，GTO法脱硫率达91．88％，达到了富锰渣高炉冶炼的入炉要求。     

钢中超低碳硫分析探讨

以日本HORIBA公司的EMIA - 82 0 0H碳硫仪为分析仪器 ,通过对燃烧条件、空白和试样污染、仪器稳定性和量值传递等相关因素的选择试验 ,建立了钢中超低碳硫分析方法。方法精密度和准确度符合ISO标准要求 ,检测下限为 1ppm ,10分钟内可发出报告 ,完全满足炼钢生产需要