AZM-T3.4-F2电解槽的检修组装与平稳高效运行

总结了F2型单极离子膜电解槽检修、组装工作程序及其主要内容，论述了各工序中的主要操作方法及影响电解槽高效平稳运行的关键环节。     

离子交换膜法氯碱生产的诸要点(下)

4、电解槽上面已经谈到,石棉隔膜与离子膜在本质上有许多不同,由此而使电解槽本身也必然不同。下面分类叙述。4—1)单极槽和复极槽4—2)金属槽和塑料槽4—3)阳极4—4)阴极4—4—1)软钢阴极4—4—2)活性阴极4—4—3)氧气阴极4—5)SPE(固体高分子电解质)4—1)单极槽和复极槽工业上将由单极或复极组成的各单元槽     

AZEC-M_3型离子膜电槽换膜检修网络进度和质量控制

AZEC-M_3型离子膜电解槽,又称小单极式电解槽,是由日本旭硝子株式会社开发研制成功的。M_3型电槽由阳极、阴极、橡胶槽框等零部件组成,如图1所示,电极的有效面积为0.2m~2/片,离子膜与电极之间的距离接近于零。该槽具有结构简单、可靠性高、氢过电位低、运行电流范围大、单槽能力可按需增减单元数来实现等优点。我国目前有上海天原化工厂、锦西化工厂、浙江善高化学有限公司三家企业选用了AZEC-M_3型离子膜电解槽。     

浅谈F2及MMC离子膜电解槽的运行及维护

简要介绍了F2离子膜电解槽和MMC离子膜电解槽的结构及运行状况,并对电解槽的维修及重涂前后使用情况进行了简要的对照。     

复极式离子膜电解槽设计的电力计算

离子膜电解槽分为单极式和复极式两种类型。二者的本质区别在于单元槽之间的导电联接方式不同,单极式离子膜电解槽为并联;复极式离子膜电解槽为串联。本文只对复极式离子膜电解槽的电力计算作一探讨。一、电流及电流效率的计算     

BMCA-2.5型离子膜法单极槽膜极距改造

将单极式离子膜电解槽由常极距改造为膜极距,降低了槽电压.通过对比试验,说明使用新型阴极活性涂层更能有效抵抗Fe2+和反向电流对阴极的不利影响.     

2000年国内外公司厂商有关氯碱电解技术在中国申请专利的进展与特点

20 0 0年中国专利与氯碱电解技术有关的内容有 2 4件 ,包括单极离子膜电解槽 ;复极离子膜电解槽 ;阳极修复涂层 ;阴极 ;生产高纯KOH用阳离子膜 ;汞合金电解单元和膜电解单元并联技术 ;气体扩散电极氯化钠电解槽 ;隔膜电解槽 ;有机电解合成等。     

计算机在电槽管理上的应用

利用计算机编制程序计算AZM－T，3，4－F2型离子膜电解槽的阳极效率，与牛顿重叠法比较，既提高了速度又保证了准确性，使电槽管理逐步科学化。     

离子膜电解槽国产化综合述评

介绍了国产化离子膜电解槽在我国的推广应用情况和技术现状。国内现已推广采用国产单极式离子膜电解槽和强制循环复极式离子膜电解槽，配套设施完备，并逐步向大型化发展，其性能指标已趋于国际先进水平。自然循环复极式离子膜电解槽正处在研究阶段，有望在近期推出。     

F—795膜在AZEC—F型大单极IM电解槽上的使用情况

本文对F—795膜在AZEC—F型大单极离子膜电解槽的使用情况做了简单介绍,并以生产运行中的数据对F—795离子膜的性能、槽电压、电流效率及其技术经济状况进行了分析。作者认为:电流效率、膜电压降与入槽盐水质量有密切关系;采用DSC集散系统控制能保证电槽内氯、氢压力稳定;膜寿命与其橡胶垫圈使用寿命有关。     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料，介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比，介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序，对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

Inorganic/organic nanocomposite coatings: The next step in coating performance

Inorganic/organic hybrid materials have considerable promise and are beginning to become a major area of research for many coating usages, including abrasion and corrosion resistance. Our primary approach is to prepare the inorganic phase in situ within the film formation process of the organic phase. The inorganic phase is introduced via sol-gel chemistry into a thermosetting organic phase. By this method, the size, periodicity, spatial positioning, and density of the inorganic phase can be controlled. An important aspect of the inorganic/organic hybrid materials is the coupling agent. The initial task of the coupling agent is to provide uniform mixing of the oligomeric organic phase with the sol-gel precursors, which are otherwise immiscible. UV-curable inorganic/organic hybrid systems have the advantages of a rapid cure and the ability to be used on heat sensitive substrates such as molded plastics. Also, it is possible to have better control of the growth of the inorganic phase using UV curing. It is our ultimate goal to completely separate the curing of inorganic and organic phases to gain complete control over the morphology, and hence optimization of “all” the coating properties. Thus far, it has been found that concomitant UV curing of the inorganic and organic phases using titanium sol-gel precursors afforded nanocomposite coatings which completely block the substrate from UV light while maintaining a transparent to visible light. Also, it has been found that the morphology of the inorganic phase is highly dependent on the concentration and reactivity of the coupling agent. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004, in Chicago, IL.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Some Large Wood-Boring Beetles in Southeastern USA

Ethanol and α-pinene were tested as attractants for large wood-boring pine beetles in Alabama, Florida, Georgia, North Carolina, and South Carolina in 2002–2004. Multiple-funnel traps baited with (−)-α-pinene (released at about 2 g/d at 25–28°C) were attractive to the following Cerambycidae: Acanthocinus nodosus, A. obsoletus, Arhopalus rusticus nubilus, Asemum striatum, Monochamus titillator, Prionus pocularis, Xylotrechus integer, and X. sagittatus sagittatus. Buprestis lineata (Buprestidae), Alaus myops (Elateridae), and Hylobius pales and Pachylobius picivorus (Curculionidae) were also attracted to traps baited with (−)-α-pinene. In many locations, ethanol synergized attraction of the cerambycids Acanthocinus nodosus, A. obsoletus, Arhopalus r. nubilus, Monochamus titillator, and Xylotrechus s. sagittatus (but not Asemum striatum, Prionus pocularis, or Xylotrechus integer) to traps baited with (−)-α-pinene. Similarly, attraction of Alaus myops, Hylobius pales, and Pachylobius picivorus (but not Buprestis lineata) to traps baited with (−)-α-pinene was synergized by ethanol. These results provide support for the use of traps baited with ethanol and (−)-α-pinene to detect and monitor common large wood-boring beetles from the southeastern region of the USA at ports-of-entry in other countries, as well as forested areas in the USA.