废润滑油的回收利用

对生产中产生的废润滑油通过过滤除去较大颗粒杂质并进行沉降处理,然后在真空分离器中进行雾状闪蒸脱水和破乳处理,除去水分和气体,再进行精滤除去粒径为0．05mm以上的杂质,最终得到水分质量分数不大于3×10^—4的再生油;将再生油与增塑剂混用于混炼胶,将废润滑油处理得到的油泥用于建筑行业,可在解决废润滑油排放污染问题的同时得到较高的经济效益。     

EPDM脱硫反应的条件及其再生胶的性能

在使用剪切流动反应槽对橡胶进行脱硫反应时，通过调节添加的解聚剂或再生油的用量，来控制再硫化橡胶的力学性能。     

密炼机残余密封油在全钢载重子午线轮胎中的应用

研究密炼机残余密封油（简称再生油）在全钢载重子午线轮胎中的应用。结果表明：随再生油用量的增大,全钢载重子午线轮胎胎体帘布胶和胎面胶的门尼粘度、FL和Fmax减小,焦烧时间延长,硫化速度变化不明显;硫化胶的定伸应力、拉伸强度、撕裂强度和压缩生热减小,拉断伸长率增大,密度和硬度变化不大;当在胎体帘布胶中添加3份再生油时,成品轮胎性能达标同时可降低成本。     

温度压力在废油再生分子蒸馏中的影响研究

通过单因素控制法进行分子蒸馏实验,利用油液检测设备得到不同温度压力下的再生油液部分理化指标。从色度8号的废油中得到色度4.5号的再生油液,根据方差分析和回归分析确定在210~240℃、30~90 Pa,再生油液运动粘度(y)和凝点(SP)与温度(T)、压力(P)的关系为SP=-23.594+0.018 6T-0.058 6T/P和y=19.181+0.038 9T-0.029P-0.208T/P。     

中国润滑油废油再生市场需求分析

中国润滑油废油市场容量不断上升的现状,使相关企业和终端用户对废油再生的需求不断提升。分析了中国润滑油废油市场容量及相关政策,同时对废油再生技术和再生油利用进行了概述。     

年处理10万吨再生油和年产4.4万吨润滑油调和项目

正采用德国MRD(多伦贝格油品精炼公司)废润滑油蒸馏--加氢精制的生产工艺,即将废润滑油加热蒸馏,分馏出润滑油馏分和残渣,然后将润滑油馏分进行加氢精制处理,年产基础油8.5万吨、年产润滑油4.4万吨。项目主体工程为再生油装置和润滑油装置,并配套建设循环水站、罐区、污水收集池、办公楼等公用工程、储运工程及辅助设施。同时依托园区现有部分公用工程和辅助设施。     

工业废水回用循环冷却水的可行性研究

对处理后达到国家一级排放标准的工业废水采用深度处理方法,使其达到再用水标准,回用于循环冷却水以代替原来的城市自来水作为补水,以达到节约水资源,降低生产成本的目的。     

浅析本体法ABS装置中的导生油系统

导生油系统广泛应用于聚苯乙烯、ABS、聚酯等装置中,笔者介绍了本体法ABS装置中导生油系统的工程设计。     

再活化处理活性炭对水中铁离子的吸附研究

通过再活化处理改变杏壳活性炭的孔隙结构,在不同条件下对比研究了再活化处理对活性炭吸附水中Fe3+的影响.研究结果表明,再活化处理丰富了活性炭的孔隙结构,增大了孔径;0.5 g活性炭投入50 mLFe3+浓度为500 mg/L的溶液中,2种活性炭对Fe3+吸附量和去除率达到最大,再活化处理活性炭的Fe3+吸附量接近50 ...     

刘庄——南湖地区油气运移条件分析

本文从油气运聚时期与断层活动期的配置关系和油气运移模式两方面对刘庄——南湖地区油气运移条件进行了分析研究。该区的油气运移主要有沙二段时期和东营组两个时期,主要的生油洼陷包括海通集生油洼陷和前梨园生油洼陷。     

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.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

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。