行业动态

从原盐纯碱联合到纯碱烧碱连理山东海化:在两碱同生共赢中解决电石泥利用难题2005年10月12日上午,随着第一袋PVC树脂(聚氯乙烯)产品的顺利下线,山东海化股份有限公司总投资10亿元的氯碱树脂项目成功投产,一举成为我国一家生产纯碱、氯碱两种产品的化工企业,同时,由于在全国同行业首次实现了纯碱、烧碱的连理,成功地解决了电石法生产PVC工艺中最令人头疼的电石泥废渣综合利用难题,填补了国内空白。电石法生产PVC工艺中产生的电石泥废渣如何处理,一直是困扰行业发展的一个难题。按每生产1tPVC产生1.59t电石泥废渣计算,山东海化氯碱树脂项…     

从原盐纯碱联合到纯碱烧碱连理

山东海化;在两碱同生共赢中解决电石泥利用难题 2005年10月12日上午,随着第一袋PVC树脂(聚氯乙烯)产品的顺利下线,山东海化股份有限公司总投资10亿元的氯碱树脂项目成功投产,一举成为我国一家生产纯碱、氯碱两种产品的化工企业,同时,由于在全国同行业首次实现了纯碱、烧碱的连理,成功地解决了电石法生产PVC工艺中最令人头疼的电石泥废渣综合利用难题,填补了国内空白.     

山东海化：在两碱同生共赢中解决电石泥利用难题

2005年10月12日上午，随着第一袋PVC树脂（聚氯乙烯）产品的顺利下线，山东海化股份有限公司总投资10亿元的氯碱树脂项目成功投产，一举成为我国一家生产纯碱、氯碱两种产品的化工企业，同时，由于在全国同行业首次实现了纯碱、烧碱的连理，成功地解决了电石法生产PVC工艺中最令人头疼的电石泥废渣综合利用难题，填补了国内空白。     

国内外简讯

绥阳氯碱装置电石工程开工贵州绥阳煤电化循环经济项目氯碱电石工程开工。氯碱项目总投资37.8亿元。其中,电石项目投资13.3亿元,建设48万t/a电石工程,预计2015年4月投入试生产;离子膜法烧碱和氯产品项目预计投资24.5亿元,离子膜法烧碱规模为30万t/a、PVC规模为30万t/a、液氯     

氯碱企业“三废”排放与综合利用

以离子膜烧碱和电石法PVC生产过程为例、对氯碱生产过程的产污环节和现阶段的治理措施进行了综合分析，对不足之处提出了综合利用措施，使氯碱行业“三废”治理措施更为完善、资源的综合利用效率进一步提高。     

探讨电石法PVC烟气治理方法

分析了电石法PVC生产链中电石炉烟气及电厂烟气二氧化硫的排放情况,指出利用电石炉烟气中的CO合成氨、再将合成氨用于燃煤电厂烟气的"氨法"脱硫是具有较大应用潜力的循环经济产业链。     

印度DsCL公司因氯碱市况看好而受益

该公司制造和销售尿素、PVC树脂、烧碱、氯和水泥以及经营农产品,其销售收入分配如下(％):尿素32、氯碱16,电石和塑料17、农产品贸易27、水泥6、其它2。该公司在kota工厂生产尿素、氯碱和塑     

内蒙古海吉氯碱化工股份有限公司"三废"治理情况简介

介绍了内蒙古海吉氯碱化工股份有限公司在一期工程——15万t/a电石、6万t/a烧碱、6万t/aPVC树脂建设及生产过程中所采取的"三废"治理措施及治理情况。     

“第30届全国聚氯乙烯行业技术年会”暨“银星”杯优秀论文交流会即将召开

1会议内容1．1技术与信息交流国内外PVC树脂行业的市场现状、发展前景、发展策略提高PVC树脂质量的措施PVC行业中循环经济的实施与进展、相关技术和经验的介绍我国电石行业现状及发展对PVC树脂行业的影响干法乙炔技术在PVC生产中的应用电石法PVC生产中汞流向的全面     

基于循环经济的燃煤电厂钠法排烟脱硫

针对国内治理燃煤电厂排放的SO2,大多采用钙法(石灰石/石膏法)带来的新的污染问题,结合我国西部地区的资源特点,介绍了用烧碱脱除燃煤电厂烟气中的SO2,其脱硫液用于生产硫酸和元明粉,电石渣用于生产水泥的综合治理方法.认为在用高硫煤的大型火电厂附近建设PVC厂,用PVC厂的烧碱实施钠法脱硫,既解决了烧碱的出路,又避免了钙法脱硫石膏堆存所产生的二次污染问题.     

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。