甲基丙烯酸甲酯吸附剂的应用分析

解决了甲基丙烯酸甲酯(MMA)吸附剂在使用中存在的运行周期短、价格高、采购周期长、不易控制等问题。通过筛选6种MMA吸附剂,剖析确定了2种吸附剂可替代进口产品;进行了国产吸附剂动态吸附寿命实验,提出了国产吸附剂替代进口吸附剂的应用方案。     

乙烯-乙烷在不同吸附剂上的吸附平衡研究

以活性炭负载Cu（Ⅰ）为原料，添加适量稀土化合物，制备成NA型和NJ型配合吸附剂。实验测定了乙烯-乙烷混合气在NA型、NJ型吸附剂和活性炭上的吸附平衡等温线，并对乙烯、乙烷两种气体的等温线模型进行了拟合。结果表明，配合型吸附剂对乙烯有很好的平衡选择性，有利于乙烯-乙烷的分离，具有工业应用前景。     

苯加氢制环己烷的齐格勒型均相催化剂的研制

本文报道了国产HC—402—2型苯加氢均相催化剂的组成和性能,并与法国同类型的HC—102型催化剂作了对比。小试和工业应用的结果表明,国产HC—402—2型催化剂优于法国HC—102型催化剂。     

RAX-2000A型对二甲苯吸附剂通过技术鉴定

由中国石化石油化工科学研究院、中国石化催化剂长岭分公司等单位共同承担的“RAX-2000A型对二甲苯吸附剂研发及工业应用”项目近日通过了中国石化股份有限公司科技开发部主持的技术鉴定。     

国产高效催化剂在抚顺乙烯工业的应用

探讨了国产高效聚丙烯催化剂（N型及CS-Ⅱ型）在抚顺乙烯公司聚丙烯装置大环管生产工艺应用中出现的问题和解决方法。并通过对工业应用技术数据和经济效益的对比分析,阐述了国产高效聚丙烯催化剂替代同类进口催化剂的可行性和可靠性。     

HZ3810型工业色谱仪在合成氨装置上的应用

简述了ＨＺ３８１０型国产工业色谱仪的一些优点和不足，着重介绍了在实际应用中的一些改进。     

吸附分离对二甲苯的技术进展

简述了吸附分离法制取对二甲苯所用的亲水型和流水两类吸附剂及其人相匹配脱附剂的研究开发、工业应用现状和发展，重点介绍了ＵＩＰ的吸附分离工艺。     

吸附分离果糖和葡萄糖的基础研究

对国产的四种吸附剂吸附分离果糖和葡萄糖混合物的分离度进行了测定,筛选小了一种较为理想的吸附剂——D001型离子交换树脂;并对该树脂吸附果糖和葡萄糖的有关平衡数据进行了测定,为设计模拟移动床吸附分离装置提供了必要的数据。     

吸附脱硫剂在异丁烷脱氢装置上的工业应用

介绍山东鲁深发化工有限公司异丁烷脱氢装置循环异丁烷脱硫吸附剂由国外更换为国产脱硫剂后的使用情况。结果表明,国产脱硫吸附剂完全能够满足装置的正常生产,较国外脱硫剂具有良好的经济效益和社会效益。     

中国钛白工业与涂料

介绍了影响钛白颜料性能的基本因素(粒径),近年我国钛白工业的现状,包括产能、产量、产品结构及标准。列举了有代表性的国产锐钛型和金红石型产品生产企业、产品牌号及在涂料工业中的应用。     

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.     

Many Drugs of Abuse May Be Acutely Transformed to Dopamine,Norepinephrine and Epinephrine In Vivo

It is well established that a wide range of drugs of abuse acutely boost the signaling of the sympathetic nervous system and the hypothalamic–pituitary–adrenal (HPA) axis, where norepinephrine and epinephrine are major output molecules. This stimulatory effect is accompanied by such symptoms as elevated heart rate and blood pressure, more rapid breathing, increased body temperature and sweating, and pupillary dilation, as well as the intoxicating or euphoric subjective properties of the drug. While many drugs of abuse are thought to achieve their intoxicating effects by modulating the monoaminergic neurotransmitter systems (i.e., serotonin, norepinephrine, dopamine) by binding to these receptors or otherwise affecting their synaptic signaling, this paper puts forth the hypothesis that many of these drugs are actually acutely converted to catecholamines (dopamine, norepinephrine, epinephrine) in vivo, in addition to transformation to their known metabolites. In this manner, a range of stimulants, opioids, and psychedelics (as well as alcohol) may partially achieve their intoxicating properties, as well as side effects, due to this putative transformation to catecholamines. If this hypothesis is correct, it would alter our understanding of the basic biosynthetic pathways for generating these important signaling molecules, while also modifying our view of the neural substrates underlying substance abuse and dependence, including psychological stress-induced relapse. Importantly, there is a direct way to test the overarching hypothesis: administer (either centrally or peripherally) stable isotope versions of these drugs to model organisms such as rodents (or even to humans) and then use liquid chromatography-mass spectrometry to determine if the labeled drug is converted to labeled catecholamines in brain, blood plasma, or urine samples.     

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.     

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.     

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。     

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.