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酯化酯交换酸催化剂生产生物柴油钦州亚美化工 产品名称:酯化酯交换酸催化剂1号 酸性物质负载率:35% 含水率:5% 粒度:微米级 最高使用温度:250°C 适用范围:催化各种需酸催化的酯化,酯交换,缩合反应及生物柴油生产。 特性:本产品为灰白色粉末状固体,表现质子酸酸性。本品具有高催化活性,高稳定性,耐高温,溶解性低不污染产品,易分离,无毒,对设备无腐蚀性,使用中不产生酸性气体,等优点。本品副反应少,不使原料碳化,适用于各种酯,醇,酸的反应体系,可循环使用约6次。特别适用于原料分子量较大的反应体系。 使用方法:本品无需活化,直接投入反应体系使用。反应体系为两相或多相时应适当增加搅拌速率和温度,如催化剂无法与原材料充分接触则反应速率下降。如反应体系中含水或产生水则需要将水分蒸出以便促进反应进行。本品易吸潮,请置于干燥处存放并尽快使用。使用数次后,如反应活性下降或结块,应做洗涤或干燥处理或补加催化剂。本品在碱性条件下使用或用水洗涤将使催化剂丧失催化活性 包装:25kg/袋 (牛皮纸袋衬pp防水膜) 危险特性:本品具有腐蚀性,对眼睛,粘膜有刺激作用,误服对消化系统有刺激作用。如不慎接触应用大量水清洗。本品不具备燃烧,爆炸性能,高温可使本品分解释放酸性气体。本品应置于阴凉干燥处存放,勿与遇酸发生反应的物质混放。 欢迎访问亚美化工阿里巴巴网站获取更多催化剂信息。
酯化酯交换酸催化剂生产生物柴油钦州亚美化工 产品名称:酯化酯交换酸催化剂1号 酸性物质负载率:35% 含水率:5% 粒度:微米级 最高使用温度:250°C 适用范围:催化各种需酸催化的酯化,酯交换,缩合反应及生物柴油生产。 特性:本产品为灰白色粉末状固体,表现质子酸酸性。本品具有高催化活性,高稳定性,耐高温,溶解性低不污染产品,易分离,无毒,对设备无腐蚀性,使用中不产生酸性气体,等优点。本品副反应少,不使原料碳化,适用于各种酯,醇,酸的反应体系,可循环使用约6次。特别适用于原料分子量较大的反应体系。 使用方法:本品无需活化,直接投入反应体系使用。反应体系为两相或多相时应适当增加搅拌速率和温度,如催化剂无法与原材料充分接触则反应速率下降。如反应体系中含水或产生水则需要将水分蒸出以便促进反应进行。本品易吸潮,请置于干燥处存放并尽快使用。使用数次后,如反应活性下降或结块,应做洗涤或干燥处理或补加催化剂。本品在碱性条件下使用或用水洗涤将使催化剂丧失催化活性 包装:25kg/袋 (牛皮纸袋衬pp防水膜) 危险特性:本品具有腐蚀性,对眼睛,粘膜有刺激作用,误服对消化系统有刺激作用。如不慎接触应用大量水清洗。本品不具备燃烧,爆炸性能,高温可使本品分解释放酸性气体。本品应置于阴凉干燥处存放,勿与遇酸发生反应的物质混放。 欢迎访问亚美化工阿里巴巴网站获取更多催化剂信息。
酯化酯交换酸催化剂生产生物柴油钦州亚美化工 产品名称:酯化酯交换酸催化剂1号 酸性物质负载率:35% 含水率:5% 粒度:微米级 最高使用温度:250°C 适用范围:催化各种需酸催化的酯化,酯交换,缩合反应及生物柴油生产。 特性:本产品为灰白色粉末状固体,表现质子酸酸性。本品具有高催化活性,高稳定性,耐高温,溶解性低不污染产品,易分离,无毒,对设备无腐蚀性,使用中不产生酸性气体,等优点。本品副反应少,不使原料碳化,适用于各种酯,醇,酸的反应体系,可循环使用约6次。特别适用于原料分子量较大的反应体系。 使用方法:本品无需活化,直接投入反应体系使用。反应体系为两相或多相时应适当增加搅拌速率和温度,如催化剂无法与原材料充分接触则反应速率下降。如反应体系中含水或产生水则需要将水分蒸出以便促进反应进行。本品易吸潮,请置于干燥处存放并尽快使用。使用数次后,如反应活性下降或结块,应做洗涤或干燥处理或补加催化剂。本品在碱性条件下使用或用水洗涤将使催化剂丧失催化活性 包装:25kg/袋 (牛皮纸袋衬pp防水膜) 危险特性:本品具有腐蚀性,对眼睛,粘膜有刺激作用,误服对消化系统有刺激作用。如不慎接触应用大量水清洗。本品不具备燃烧,爆炸性能,高温可使本品分解释放酸性气体。本品应置于阴凉干燥处存放,勿与遇酸发生反应的物质混放。 欢迎访问亚美化工阿里巴巴网站获取更多催化剂信息。
这篇文章对饲养有点启示性 Behavioral Ecology of the Impressed Tortoise in the Wild of Cambodia Chey Koulang The Impressed Tortoise, Manouria impressa, inhabits the evergreen forests of montane parts of Southeast Asia in Cambodia, Thailand, Vietnam, Burma, Lao PDR, Malaysia, and Southern China. It lives in high elevations about 800 meters or over, and its behavior and status in the wild are little known. It eats mostly mushrooms and is also reported to eat bamboo shoots. They are classified as Vulnerable by the IUCN Red List and listed in Appendix II of CITES. Due to difficulties in maintaining and breeding M. impressa in captivity, husbandry trials are underway to assess problems with adapting to a captive environment and possible disease infection. However, information on their natural ecology should be collected through research on wild populations. This may help improve the success with captive animals. In 2007, research on the behavioral ecology of M. impressa got underway in the Central Cardamom Protected Forest (CCPF), located in Southwest Cambodia, as a thesis for an MSc on conservation biodiversity at Royal University of Phnom Penh. Radio telemetry was used in the study and research was directed at determining the various forest habitats, micro-habitats, temperature, humidity, home range, and food types. Twelve tortoises were attached with the radio transmitters in the study, four females and eight males. Habitats The study site in the Cardamom Mountains, known as Impressed Tortoise Mountain, consists of evergreen and bamboo forest. The forests are wet with rain nearly every day in the rainy season and less so in the dry season. Mostly the tortoises hide under logs, bamboo tubes, tree roots, or leaf litter, or in holes. The habitat is generally covered with full canopy to semi canopy, or on rare occasions, completely open. If the canopy is full, M. impressa stays under tree roots or leaf litter, or around tree stumps; however they are more visible and exposed than in the semi- and open canopy. They remain completely hidden in open areas. The temperature recorded during the study was 150 C minimum at 4 AM and 270 C maximum at 1:30 PM. The temperature of the micro-habitat is cooler than compared to the ambient temperature. Micro-habitat temperature was recorded at 180 to 210 C. Humidity was very high, ranging from 70% to 96%, being higher at night. Humidity at micro habitats was 78% to 98%, but rarely would drop lower, to 66% at the lowest, in the afternoons. On no occasion did we find M. impressa basking or soaking in water. Soaking activity is seen in captivity, and observed by the local people only at high temperatures. Food Types We found that M. impressa primarily eats many kinds of mushrooms and two plant species. There are reports indicating that bamboo shoots are also eaten, however this study could not confirm that. The plant and mushrooms species are not yet identifiedbecause there are no scientists that are familiar with these groups of Cambodia. We hope they will be identified soon. Behavior The Impressed tortoise spends the majority of its time hiding, more so than any other activity. Sometimes they remain hidden in one place for up to two weeks, especially when in a hole; also the first time after being released with a transmitter they remain hidden for long periods of time. A tortoise can travel about 200m or more in one day, even a small tortoise about 0.5 kg. The body size of the tortoise was not found to be related to the home range. A study on activity patterns will be conducted later when we have suitable equipment for this type of research.
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