硝酸尾气净化制亚硝酸钙

选用价格低廉的石灰乳作为吸收液对硝酸尾气的吸收净化进行了研究，并在小试装置上进行了石灰乳与纯碱溶液的吸收对比实验。结果表明，石灰乳对NOX的吸收效果优于纯碱溶液，并且能够生产出合格的亚硝酸钙产品。     

亚硝酸钙的开发与应用

介绍了亚硝酸钙的性质、用途、主要生产方法,并详细探讨了石灰乳吸收NO_x法的生产工艺。     

一种用于生产72%片碱的新装置

介绍了一种生产质量分数为72％片碱的新装置，采用旋转薄膜蒸发器将质量分数为30％的碱浓缩至50％的液碱，再采用外热式蒸发器将50％的碱浓缩生产至72％的片碱。在1m^2旋转薄膜蒸发器装置上进行了烧碱浓缩试验，考察了流量、转速、黏度等对传热系数的影响。生产实践表明，一套50m^2装置生产72％片碱能力为1万t／a(折100％为7000t／a)。     

利用磷矿制备饲料添加剂磷酸二氢钙

以磷矿为原料制备磷酸,通过化学沉淀法脱氟除杂质得到净化的磷酸,再将净化后的磷酸与碳酸钙反应制备饲料级磷酸二氢钙.考察了硫酸质量分数、石灰乳用量、反应时间和反应温度4个因素对磷酸二氢钙产率的影响,得到了制备磷酸二氢钙的最佳工艺条件:硫酸质量分数60％,石灰乳用量7.00 g,反应时间1.5h,反应温度50℃.在此最佳工艺...     

电石渣化乳技术在环氧丙烷生产中的应用

介绍了福建东南电化股份有限公司在氯醇法环氧丙烷生产中,采用电石渣乳化配制氢氧化钙质量分数为18%的石灰乳作为氯丙醇皂化剂的工艺,和主要工艺参数的控制方法。     

锌冶炼厂重金属废水处理试验研究

分析了某大型锌冶炼厂生产废水的特征.试验研究确定了废水处理的最佳工艺流程：石灰乳中和-硫化物沉淀-石灰乳中和沉淀-KMnO4曝气氧化,得到了最优工艺运行参数：石灰乳中和的最佳pH为7～8,Na2S的投加质量浓度为4 mg/L,石灰乳中和沉淀的最佳pH为10,KMnO4的投加质量浓度为3 mg/L,曝气量为6～10 m^3/m^3.系统出水各项指标均低于〈污水综合排放标准〉（GB 8978-1996）的一级标准.     

纳米沉淀碳酸钙粒子的制备方法

介绍了一种纳米级沉淀碳酸钙粒子的制备方法。通过在石灰乳碳化过程中加入晶型控制剂，如：聚天冬氨酸、二辛基磺基琥珀酸钠、相对分子质量在500～15000的聚丙烯酸、柠檬酸等，控制晶型及晶体大小。当用柠檬酸为晶型控制剂时，其质量分数为石灰乳的5％-15％。     

稻壳制备白炭黑新方法研究

介绍了以稻壳为原料，不经过生成水玻璃的中间环节而直接制备白炭黑的新方法，通过在稀盐酸中煮沸、干燥后，在一定温度下煅烧，可制得优质白炭黑。对新方法制备白炭黑的工艺条件进行了研究，确定了反应的最佳工艺条件：盐酸质量分数为3％，煮沸时间为4h，煅烧温度为550℃。此条件下制得的产品白度在93％以上，二氧化硅质量分数在98％以上。BET法研究表明了产品的比表面积为235m^2／g；经X射线衍射（XRD）、红外光谱（IR）分析表明制备的白炭黑为非晶态结构。实验结果表明：新方法生产的白炭黑质量优于国家标准，与传统方法相比，工艺条件更为简单，成本更为低廉。     

氯化氢废气回收处理系统设计与应用

针对水处理剂生产中有害废气释放，利用负压抽吸引流物理吸收和化学吸收共同作用原理，研究和设计了废气的吸收装置，采用吸收剂分段循环和降温相结合的回收工艺，将此工艺应用于10000t／a水处理杀菌剂生产装置的氯化氢废气回收上，实验结果表明：可使氯化氢回收率达97．5％以上、盐酸质量分数达30％。     

高纯氧化镁生产新工艺

为了综合利用运城盐湖的卤水资源，以碳酸氢钠为原料与卤水进行反应生产高纯氧化镁，同时副产无水硫酸钠和氯化钠。工艺条件为：反应温度60～65℃，反应物Mg^2＋质量分数约3．3％，NaHCO3溶液质量分数约14％，加料速度约20L／min，反应时间1h，洗水量为氧化镁质量的50倍。生产的高纯氧化镁纯度达99％以上，反应后的母液经过蒸发，所得产品不经洗涤，无水硫酸钠纯度可达98％，氯化钠纯度可达97％，这样的卤水每15m^3可生产1t氧化镁，副产无水硫酸钠2．2t、氯化钠1．6t。     

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。