搜索结果: 1-15 共查到“矿床学与矿相学 Co”相关记录25条 . 查询时间(0.093 秒)
新疆东部的磁海是一个以Fe-Co组合为特色的矿床。对磁海矿区镁铁超镁铁岩的年代学和地质地球化学、矿床共生Co的地质特征、黄铁矿的成分特征等研究发现，磁海矿床是一个同期两个系列(即铜镍系列和钛铁系列)幔源岩浆作用复合的岩浆热液型矿床。铜镍系列主要形成了橄榄辉长岩、橄长岩、辉长岩和角闪辉长岩等深成侵入相，辉长岩锆石U-Pb年龄为(279.1±1.4) Ma；岩石以较高的m/f值(多数>1.5)为特征；...
Swelling Behavior of Guar Gum-g-Poly(Sodium Acrylate -co-Styrene)/Attapulgite Superabsorbent Composites
attapulgite guar gum styrene superabsorbent composite swelling behavior
2011/10/10
A series of superabsorbent composites, guar gum-g-poly(sodium acrylate-co- styrene)/attapulgite [GG-g-P(NaA-co-St)/APT], were prepared by simultaneous grafting partially neutralized acrylic acid and h...
Effect of surfactant on porosity and swelling behaviors of guar gum-g-poly(sodium acrylate-co-styrene)/attapulgite superabsorbent hydrogels
Surfactant Porosity Guar gum Hydrogel Swelling behavior
2011/10/10
Novel fast-swelling porous guar gum-g-poly(sodium acrylate-co-styrene)/attapulgite (GG-g-P(NaA-co-St)/APT) superabsorbent hydrogels were prepared by simultaneous free-radical graft copolymerization re...
Effect of surfactant on porosity and swelling behaviors of guar gum-g-poly(sodium acrylate-co-styrene)/attapulgite superabsorbent hydrogels
Surfactant Porosity Guar gum Hydrogel Swelling behavior
2011/12/14
Novel fast-swelling porous guar gum-g-poly(sodium acrylate-co-styrene)/attapulgite (GG-g-P(NaA-co-St)/APT) superabsorbent hydrogels were prepared by simultaneous free-radical graft copolymerization re...
Synthesis, characterization and swelling behaviors of guar gum-g-poly(sodium acrylate-co-styrene)/vermiculite superabsorbent composites
guar gum vermiculite styrene superabsorbent composite swelling
2011/12/13
A series of novel superabsorbent composites guar gum-g-poly(sodium acrylate-co-styrene)/vermiculite (GG-g-poly(NaAco-St)/VMT) were prepared by the simultaneous graft copolymerization of guar gum (GG),...
Synthesis, characterization and swelling properties of guar gum-g-poly(sodium acrylate-co-styrene)/muscovite superabsorbent composites
superabsorbent composite guar gum styrene muscovite synergistic effects swelling
2011/12/14
A series of novel guar gum-g-poly(sodium acrylate-co-styrene)/muscovite(GG-g-P(NaA-co-St)/MVT) superabsorbent composites were prepared by free-radical grafting
copolymerization of natural guar gum (G...
将自主研发的低压进样系统与GC-FID法相结合,解决了低压样气难以抽取进样的技术难题,实现了对SUMMA采样罐内低压样气中CO、CH4的分析.罐内样气压强大于30kPa情况下,该进样装置能将待测低压气体提升至常压状态并完成进样过程.本系统采用3个六通阀、5Å分子筛与TDX-01双柱实现O2、CO、CH4的有效分离.通过对5分子筛柱的反吹去除杂质组份,既保持基线平稳,又可缩短分析周期,...
深源CO 2及其对金的富集成矿作用
地幔流体 深源CO 2 金成矿流体 金矿化
2009/10/27
目的:深源CO2与金成矿作用关系的研究是当前地学界倍受关注的前沿课题，介绍了深源CO2的特点。方法:以国内外一些典型金矿研究资料为基础，结合我们近年从事矿床地球化学研究的成果，为深源CO2与金矿化间的联系提供了直接的地质证据。结果:地球深部CO2储量巨大，且处于超临界状态，对金矿化有重要作用。结论:深源CO2对金矿化的作用主要表现为运输成矿物质和提供巨大的能量两个方面。
制备了一种聚(丙烯酸-co-丙烯酰胺)/膨润土/腐植酸钠三维网络凝胶吸附剂，重点考察了吸附剂对Cd2+吸附的pH依赖性、吸附动力学和吸附等温线。结果表明，Cd2+溶液pH值对吸附容量有较大影响。在pH＝8、吸附时间30 min、Cd2+溶液初始浓度0.02 mol/L和吸附剂用量0.10 g的条件下，吸附剂对Cd2+的饱和吸附量可达294.7 mg/g。与膨润土相比，三维网络凝胶吸附剂具有更高的吸...
铜/海泡石催化氧化CO和催化还原NOx性能的研究
铜 海泡石 CO NOx
2012/3/13
采用浸渍法制备铜/海泡石催化剂，考察其催化氧化CO和催化还原NOx性能以及预处理条件和掺加稀土元素对其性能的影响，并用XRD、BET技术对其进行表征。盐酸和硝酸改性的海泡石载体都能使铜/海泡石在190℃左右将CO完全转化；稀土元素的添加对铜/海泡石催化氧化CO的活性没有显著影响；铜/海泡石对NOx有一定的催化还原性能，添加稀土后对其催化还原活性有明显促进作用。
煤粉再燃对锅炉CO及N2O排放控制的试验研究
煤粉再燃技术 CO N2O
2012/3/16
结合CO和N2O的生成及分解机理,利用2.11WM燃煤半工业炉进行了煤粉再燃试验,研究了煤粉再燃技术对锅炉CO和N2O排放的控制效果.试验发现,随再燃比的增加和再燃区过量空气系数的减少,CO和N2O的脱除效果增强;过高或过低的一级燃烧区过量空气系数均不利于CO的脱除;N2O的脱除随一级燃烧区过量空气系数的增大而增大.煤粉炉应用煤粉再燃技术可以实现CO和N2O的同时脱除,因而可开发该技术在燃煤锅炉中...
以改性海泡石为载体,负载IB族金属(Cu,Ag,Au),制备CO还原NO的催化剂.用正交实验确定载体海泡石的改性条件.研究考察该催化剂在有氧条件下的催化还原性能,并用XRD、TGA、H2-TPR、BET等对该催化剂进行表征.研究发现,在有氧条件下,IB族金属(Cu,Ag,Au)催化剂中,Cu海泡石对CO还原NO反应的催化活性最好;Cu负载量为5%、灼烧温度为400℃的催化剂表现出较高的活性;Cu海...
Systematics of Ni and Co in olivine from planetary melt systems: Lunar mare basalts
planetary melt systems:Luna rmare basalts Co Ni
2012/3/31
ThesystematicsofCoandNiinolivinefromsixApollo12olivinebasaltswerestudied
bySIMStechniquesandcorrelatedwithmajorandminorelementdataobtainedwiththe
electronmicroprobe.Ourresults,togetherwithpreviousst...
Adsorption of Nitrilotriacetate (NTA), Co and CoNTA by Gibbsite
?Al2O3 Adsorption Chelate Cobalt Desorption Gibbsite (?Al(OH)3) Nitrilotriacetic Acid (NTA)
2011/12/27
Adsorption of Co2+ nitrilotriacetic acid (NTA) and equal-molar Co2+ and NTA by a low surface area (LSA) commercial gibbsite (3.5 m2 g−1) was investigated in batch as a function of pH (4.5 to 10....