{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":2,"startPagecode":1},"records":[{"abstractinfo":"以络合真空浸渍法制备了Pt-Sn-K/γ-Al_2O_3,催化剂.采用吡啶吸附红外光谱、CO脉冲吸附、程序升温还原、热重及程序升温氧化等手段对催化剂进行了表征,研究了K助剂对Pt-Sn-K/γ-Al_2O_3催化剂结构及其催化C_(16)正烷烃临氢脱氢反应性能的影响.结果表明,K的引入减弱了SnO_x和Al_2O_3间的相互作用,促进了Pt对SnO_x的还原,并导致催化剂的脱氢反应活性降低.K的加入还减少了强酸中心数目,一方面减少了催化剂酸性位上的副反应,提高了产物选择性;另一方面提高了催化剂的抗积炭能力,催化剂稳定性有所改善.但过量的K助剂减弱了催化剂的金属位-酸性位的协同作用,使得催化剂活性和稳定性均有所降低.","authors":[{"authorName":"何松波","id":"673d8016-5e70-4032-9951-2869207a64e0","originalAuthorName":"何松波"},{"authorName":"赖玉龙","id":"820049f8-f867-448e-8ed2-f5cf1192fb54","originalAuthorName":"赖玉龙"},{"authorName":"毕文君","id":"7f14accd-e5b5-4aaf-9c85-97ef6a9fd455","originalAuthorName":"毕文君"},{"authorName":"杨旭","id":"5dc05aac-235d-45c6-981c-3f4b76c4a0b4","originalAuthorName":"杨旭"},{"authorName":"荣欣","id":"6e58331e-8fa4-4335-abf0-cb77756bc21e","originalAuthorName":"荣欣"},{"authorName":"孙承林","id":"762a94d0-c1a3-4f34-9e8b-396144e9de59","originalAuthorName":"孙承林"}],"doi":"10.3724/SP.J.1088.2010.90946","fpage":"435","id":"710e95f6-a5d7-4cca-87b4-9910fe8f323a","issue":"4","journal":{"abbrevTitle":"CHXB","coverImgSrc":"journal/img/cover/CHXB.jpg","id":"18","issnPpub":"0253-9837","publisherId":"CHXB","title":"催化学报 "},"keywords":[{"id":"94922ecb-6d8c-4008-86de-1a150cfe9901","keyword":"铂","originalKeyword":"铂"},{"id":"4554309d-4be2-4044-94cc-02d851cca4a0","keyword":"锡","originalKeyword":"锡"},{"id":"3f32cd7a-f458-4681-a61e-afec7cea85fc","keyword":"碱金属钾","originalKeyword":"碱金属钾"},{"id":"821aefd3-5c64-463a-b0f7-d0a28942f43f","keyword":"长链烷烃","originalKeyword":"长链烷烃"},{"id":"6bc74f76-439a-48db-ba85-e3fcdda46e26","keyword":"脱氢","originalKeyword":"脱氢"},{"id":"45b9df67-1429-4a21-887d-a39b80d9b1c7","keyword":"酸性","originalKeyword":"酸性"},{"id":"71b564dc-8743-473f-8b5a-9dee58d68807","keyword":"积炭","originalKeyword":"积炭"}],"language":"zh","publisherId":"cuihuaxb201004013","title":"K助剂对Pt-Sn-K/γ-Al_2O_3催化剂上C_(16)正构烷烃脱氢反应的影响","volume":"31","year":"2010"},{"abstractinfo":"在黔西南望谟县岜油、岜赖两地区进行了土壤地球化学测量,通过对两个测区的成矿元素Au与伴生元素As、Sb、Hg的分析、对比,并对土壤地球化学异常进行了初步评价,进而推断前燕山期包树—大观古断裂应为导矿构造,沿该断裂带寻找到工业矿体的可能性小,其旁侧构造有利部位则具备找矿前景.","authors":[{"authorName":"张凯","id":"98b0d40b-fe91-4c30-a4a4-3ad165b2dd85","originalAuthorName":"张凯"},{"authorName":"宋玉国","id":"44772e1b-55ce-47ea-adfe-2dc130780cdb","originalAuthorName":"宋玉国"}],"doi":"","fpage":"8","id":"e37c77f9-796d-4d2f-a303-8385aeb10195","issue":"8","journal":{"abbrevTitle":"HJ","coverImgSrc":"journal/img/cover/HJ.jpg","id":"44","issnPpub":"1001-1277","publisherId":"HJ","title":"黄金"},"keywords":[{"id":"620a2a08-4d25-4e51-a225-21fccb018031","keyword":"土壤地球化学测量","originalKeyword":"土壤地球化学测量"},{"id":"263be838-b1e6-4f68-af33-91d45737bbd3","keyword":"成矿元素","originalKeyword":"成矿元素"},{"id":"4bce57bd-5110-4434-aca6-69a36c506aee","keyword":"伴生元素","originalKeyword":"伴生元素"},{"id":"cb4a2a90-063a-465e-bc4a-600871d18ab9","keyword":"岜油测区","originalKeyword":"岜油测区"},{"id":"960ae041-12ae-4d23-a105-a2e4a50cdac5","keyword":"岜赖测区","originalKeyword":"岜赖测区"},{"id":"d77319bd-5e7e-4779-868a-c66da3d6d457","keyword":"黔西南","originalKeyword":"黔西南"}],"language":"zh","publisherId":"huangj201208003","title":"黔西南望谟岜油、岜赖测区土壤地球化学特征","volume":"33","year":"2012"},{"abstractinfo":"西藏玉龙铜矿含铜1.6%~1.8%,含硫7.0% ~8.5%,矿石性质复杂,易泥化脉石含量高,属于难选矿石.为实现矿石中铜矿物的高效回收,简化现场工艺流程,采用铜优先浮选工艺处理该矿石,即以BK-404作铜矿物的捕收剂,石灰作黄铁矿的抑制剂,在矿浆pH值=9的低碱条件下分步粗选两次,粗精矿不再磨精选三次.试验结果表明,在原矿含铜1.66%的条件下,采用该工艺小型闭路试验可获得含铜20.63%、铜回收率82.24%的铜精矿.铜优先浮选工艺试验指标良好,减少精选浮选机配置容积,减少铜金属循环量和流失量,使铜矿物得到很好的回收,为现场的流程改造提供理论依据.","authors":[{"authorName":"罗仙平","id":"10658fef-649b-448a-9221-f6dc9969537b","originalAuthorName":"罗仙平"},{"authorName":"王鹏程","id":"59a65228-eb92-49d3-97ed-131e9c10f3e8","originalAuthorName":"王鹏程"},{"authorName":"曹志明","id":"86f9d175-41ba-44c4-95e9-584c6aaf5c9e","originalAuthorName":"曹志明"},{"authorName":"王训青","id":"cdf7ba34-a4ee-4818-b9ed-9199ff1176cb","originalAuthorName":"王训青"},{"authorName":"青岩","id":"4191e158-7ec1-49a1-96df-c3f92a8ef322","originalAuthorName":"青岩"},{"authorName":"陈飞","id":"f49982cb-317f-4cc9-8e72-35935ab611c4","originalAuthorName":"陈飞"}],"doi":"10.3969/j.issn.2095-1744.2016.06.013","fpage":"58","id":"c4ad47c4-323b-4aea-a023-7749a4069429","issue":"6","journal":{"abbrevTitle":"YSJSGC","coverImgSrc":"journal/img/cover/YSJSGC.jpg","id":"76","issnPpub":"2095-1744","publisherId":"YSJSGC","title":"有色金属工程"},"keywords":[{"id":"3bf33169-ed92-4f9a-a6a4-e0e51ce1cf76","keyword":"硫化铜矿","originalKeyword":"硫化铜矿"},{"id":"5cbe38cf-0805-4814-9c68-f0c72d603d26","keyword":"黄铁矿","originalKeyword":"黄铁矿"},{"id":"52a18f2f-01ed-4326-9032-7f126db0e5fb","keyword":"优先浮选","originalKeyword":"优先浮选"},{"id":"19522997-352d-41aa-a396-ea6f70577d7a","keyword":"高效回收","originalKeyword":"高效回收"}],"language":"zh","publisherId":"ysjs201606013","title":"西藏玉龙铜矿硫化铜矿石选矿试验研究","volume":"6","year":"2016"},{"abstractinfo":"通过分析于2009年9月22日—28日期间,在玉龙雪山周边河流白水河采集的河水样品(采样间隔为2 h),对冰雪融水补给径流的日变化特征及其规律进行了深入研究.结果表明,白水河水中所测的阴离子以SO2-4含量最高,其次为NO-3和Cl-;阳离子中主要以Ca2+、Mg2+为主,其次为Na+、K+,不同于冰雪融水中的离子浓度序列Ca2+>Na+>K+>Mg2+,反映了流域内基岩岩性对河水化学性质的影响;水体的pH值平均8.6,电导率介于29.9—73.5μS·cm-1之间,日周期波动幅度较大;受降雨影响时段,各离子含量峰值通常出现在16∶00左右,各离子含量随降雨量的增加呈增加态势(除SO2-4、NO-3外);在无降雨影响下,随径流量的增加,各离子含量表现出减小趋势.","authors":[{"authorName":"史晓宜","id":"30ece7c1-e01b-4448-a0a3-582f9b68641b","originalAuthorName":"史晓宜"},{"authorName":"何元庆","id":"44f86294-66c7-4a3d-a325-05ef4cd07af1","originalAuthorName":"何元庆"},{"authorName":"蒲焘","id":"d57f73a3-c14e-401b-a0d8-da32d6ef6534","originalAuthorName":"蒲焘"},{"authorName":"何则","id":"54d93636-8cef-4753-9249-795d71cd635d","originalAuthorName":"何则"},{"authorName":"牛贺文","id":"fe67ab56-3351-441f-9524-bb7afda7b403","originalAuthorName":"牛贺文"}],"doi":"10.7524/j.issn.0254-6108.2015.10.2015012004","fpage":"1895","id":"2147d279-28c0-4770-8377-d252c6028c2c","issue":"10","journal":{"abbrevTitle":"HJHX","coverImgSrc":"journal/img/cover/HJHX.jpg","id":"43","issnPpub":"0254-6108","publisherId":"HJHX","title":"环境化学 "},"keywords":[{"id":"7a1ee71e-5b9a-4843-9a91-6790662b3a13","keyword":"玉龙雪山","originalKeyword":"玉龙雪山"},{"id":"e37915fb-ab64-4db0-a132-d2b3b236e940","keyword":"白水河","originalKeyword":"白水河"},{"id":"0395c1cf-98e9-41ef-a653-bd794af2b8be","keyword":"水化学特征","originalKeyword":"水化学特征"},{"id":"687bf5b6-282a-4839-a6c8-74f6e67603c7","keyword":"日变化","originalKeyword":"日变化"}],"language":"zh","publisherId":"hjhx201510018","title":"玉龙雪山周边典型河流的水化学日变化特征?","volume":"","year":"2015"},{"abstractinfo":"2014年6-8月分别对丽江-玉龙雪山索道区,甘海子,丽江市区,龙蟠镇等4个地区进行降水采集,共采集87个样品,对主要化学离子(Na+、K+、NH4+、Ca2+、Mg2+、SO42-、Cl-、NO3-)电荷浓度进行分析.结果表明,离子总浓度丽江市区>龙蟠镇>甘海子>索道区.阳离子含量最高的为Ca2+和NH4,阴离子含量最高的为SO42--.分析1997-2014年丽江降水离子含量,SO42-与NO3-的比值逐年下降,表明旅游业和交通运输业对丽江大气环境质量影响显著.采用主因子分析法进行分析,NH4、SO42-、NO3-在第一因子中为高载荷,受人类污染的影响,Na+与K+、C1-在第二因子中高载荷,受海洋源影响.Ca2+、Mg2+在第三因子中高载荷,受陆地源影响.","authors":[{"authorName":"石晓非","id":"6fe65050-b65e-4523-97d6-1c83c5b59b88","originalAuthorName":"石晓非"},{"authorName":"牛贺文","id":"61d8b737-a4bc-450a-b0e3-a449099e9111","originalAuthorName":"牛贺文"},{"authorName":"何元庆","id":"4cbe6e6d-9e42-4de6-86a6-8f541f2bbd62","originalAuthorName":"何元庆"},{"authorName":"齐翠姗","id":"6ba2f013-cbdc-4d41-a2dd-58289f7c1730","originalAuthorName":"齐翠姗"},{"authorName":"蒲焘","id":"e12efe1e-066c-4369-aca0-9776f6af351b","originalAuthorName":"蒲焘"},{"authorName":"史晓宜","id":"7f37ea20-89d3-4a93-ab4a-58a0d552bbc7","originalAuthorName":"史晓宜"}],"doi":"10.7524/j.issn.0254-6108.2017.05.2016112003","fpage":"994","id":"4890ec5a-5350-4419-8c72-fa1208a691cf","issue":"5","journal":{"abbrevTitle":"HJHX","coverImgSrc":"journal/img/cover/HJHX.jpg","id":"43","issnPpub":"0254-6108","publisherId":"HJHX","title":"环境化学 "},"keywords":[{"id":"5e7c5a7f-25ae-48a6-8f9a-d7b8c8d8549b","keyword":"丽江-玉龙雪山","originalKeyword":"丽江-玉龙雪山"},{"id":"c9a0e579-4832-4511-9c5a-7593cb03e738","keyword":"雨水化学","originalKeyword":"雨水化学"},{"id":"4d4b2461-6ae5-4f63-8ac1-e86e9eb06bab","keyword":"人类活动","originalKeyword":"人类活动"}],"language":"zh","publisherId":"hjhx201705007","title":"丽江-玉龙雪山地区大气降水化学特征","volume":"36","year":"2017"},{"abstractinfo":"建立了高效液相色谱法(HPLC)同时测定注射用赖氨匹林中阿司匹林和游离水杨酸含量的方法.采用的色谱柱为Hypersil BDS C18柱,流动相为甲醇-水-冰醋酸(体积比为35∶65∶3),检测波长为280 nm.阿司匹林和水杨酸的质量浓度分别为0.028 g/L~0.141 g/L和0.77 mg/L~3.85 mg/L时线性关系良好,其线性相关系数分别为0.999!9和0.999!8;加样回收率分别为99.27%(RSD=0.8%)及99.61%(RSD=1.3%).","authors":[{"authorName":"董煜","id":"14445532-4a3c-4287-b299-f04b9832b5b9","originalAuthorName":"董煜"},{"authorName":"赵远征","id":"a0afb7ce-1e67-4ded-9470-68fd65237242","originalAuthorName":"赵远征"},{"authorName":"张怡娜","id":"d9962e82-d543-4a48-9554-9f31f1d42cb7","originalAuthorName":"张怡娜"}],"doi":"10.3321/j.issn:1000-8713.2002.03.024","fpage":"277","id":"0ecc5cc0-b096-417f-8559-2a3973a8d4fc","issue":"3","journal":{"abbrevTitle":"SP","coverImgSrc":"journal/img/cover/SP.jpg","id":"58","issnPpub":"1000-8713","publisherId":"SP","title":"色谱 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