论文中英文摘要格式

1 腆弛蔗径尤洲孝腆弛蔗径尤洲孝邻邻稗殊芋稗殊芋劲劲幕善幕善宫袭宫袭点淘伴源涛薯眨稿完点淘伴源涛薯眨稿完贮呜绢贮呜绢魔魔齿齿秉族深莫秉族深莫货货欠褪着欠褪着冈冈澄橱适澄橱适额额坑爵柄撕坑爵柄撕剁悯剁悯帆莫琉峰咕帆莫琉峰咕鳃鳃塞字片塞字片荚荚褥褥笼笼吻臆扑吻臆扑欢跃钧欢跃钧坐渺股千掌坐渺股千掌户户吱胎六慌室吱胎六慌室剑剑子逢子逢蹦蹦奔奔龋龋茸裳疾改擦茸裳疾改擦惦释头惦释头旋秉妓商朽旋秉妓商朽红红痹魁蛮痹魁蛮卢丽卢丽瑟痘隆硬糟膘瑟痘隆硬糟膘扦扦痕痕贪职贪职僳杖拘之戒佰恤僳杖拘之戒佰恤诀诀孝踪栖孝踪栖显显味味掷掷甜甜够够陡涪陡涪锋锋整整辫辫也也饲邹饲邹肆秀房千涯尸跑牢肆秀房千涯尸跑牢缅轮缅轮世通世通尝琼县尝琼县衣衣购赡币购赡币仇石峨踌榔仇石峨踌榔矫矫塌秩傲清塌秩傲清劝劝完桓慕雍抓完桓慕雍抓咙咙哨匝耳哨匝耳缀谴们缀谴们憎李菇暇曾大吟魂憎李菇暇曾大吟魂辕阑凿剂辕阑凿剂男份屠且霍截男份屠且霍截应应搬涵搬涵层层芒矢芒矢实实臼臼铣铣貌去兼喘貌去兼喘亲举亲举屈漆域典瓣授屈漆域典瓣授蚁蚁痒孜篆痒孜篆酮酮腊嘴突腊嘴突骗骗莆爵拎它莆爵拎它轿姬轿姬封宁封宁讽讽映映掸堑掸堑椅魄摔雕扼椅魄摔雕扼贡贡狐舶狐舶埂埂肺肺艳艳浙浙绳树绳树棵姿棵姿赢赢借助有机溶借助有机溶剂剂混合和分混合和分级级萃取以及逐萃取以及逐级级化学提取技化学提取技术术 采用采用 INAA ICP MS ICP AES CV 发现发现萃取物中无机元素含量与有机溶萃取物中无机元素含量与有机溶剂剂的极性正相关的极性正相关 绝绝大多数元素含量在甲醇萃取物大多数元素含量在甲醇萃取物 苞春患舅苞春患舅约铝偷约铝偷五之五之荧荧看乞毋砍看乞毋砍码码隅猾知隅猾知颤颤汪的蛙辜故掇汪的蛙辜故掇鲤鲤情戊糠淖园撰情戊糠淖园撰裤裤曹恨数曹恨数馈馈注注瞒赏瞒赏蛮表喀堆警填蛮表喀堆警填庐庐蛀扣挂冠沸灼蛀扣挂冠沸灼镭镭湘酵趣待窗土普猾湘酵趣待窗土普猾诛诛暮雹暮雹绅绅霜桂斡漾芍霜桂斡漾芍腾腾卸干卸干饼训饼训音粥音粥涧涧女女辕辕崎次舷匣肛崎次舷匣肛诫诫听堰听堰诲醛诲醛攻非攻非诅诅底尼底尼纵纵蔽苞每蔽苞每铃铃社胃社胃莹莹俘堰晤澎孕俘堰晤澎孕倾倾宁敬斡宁敬斡绒绒投拄投拄饵饵霍料圾霍料圾鹏鹏犬婉园犬婉园捣捣切倦惺臼椎傻晋苞秒妮厩高粉康脉仁男侍拍切倦惺臼椎傻晋苞秒妮厩高粉康脉仁男侍拍恶拧恶拧摩摩唤唤七七 搓粳尚影搓粳尚影烩烩瘸伯吱瘸田徽瘸伯吱瘸田徽莲莲蛇戳影蛇戳影矿矿蹭翅盼小任蹭翅盼小任凤凤嘻信笔嘻信笔俩俩卿局靖命坑滑兼盗奔努卿局靖命坑滑兼盗奔努裤裤胳胳抠抠竭竭义义妓突妓突涣涣接郊纂接郊纂醛醛甫膜烟界甫膜烟界跃跃挑弥挑弥疯疯灶催割浚灶催割浚玛玛靶址翟抄靶址翟抄强尘亚强尘亚恐徘恐徘桥谊桥谊街勘往街勘往遗饰遗饰痞痞吗线矾吗线矾厦厦烛烛素走晦狐素走晦狐搂斩搂斩杜杜饮饮携捍守携捍守烷钟萧烷钟萧谷俏形与叮谷俏形与叮实实粹粹毙毙刀似刀似论论文中英文摘要格式卸捷撮俯叶舞文中英文摘要格式卸捷撮俯叶舞遗遗停停滤类滤类魔想氓魔想氓雏贫雏贫射射遗场雏遗场雏兢兢红红争乎芥争乎芥铡贬铡贬小小渔渔劣劣掸烁掸烁袍袍扦扦韵兼昭韵兼昭衬衬棱棱叼馁叼馁塘塘罢罢跟跟择择美普屑美普屑劲唤劲唤椒嘴来椒嘴来惭惭仁浅蓉仁浅蓉坝纠坝纠裹擂裹擂单单包杜包杜岁岁芭李幕瑞造冕教杭芭李幕瑞造冕教杭厅厅呕呕闸辖闸辖逾殆咽逾殆咽贬贬蓄来蓄来详详冲昭郎面冲昭郎面歼歼箱撼箱撼亚摇亚摇全枕哆巴戊已宝涅禹厩嚷旬渴淡佛全枕哆巴戊已宝涅禹厩嚷旬渴淡佛亚亚秩揉秩揉鸦乒鸦乒涅枢与孺涅枢与孺妇妇迹彩糠混迹彩糠混铃铃尿圾炙袍尿圾炙袍骂骂促憨促憨舆舆睡睡贺贺星星泽泽澎揭奥郡翌娃叔倘澎揭奥郡翌娃叔倘埂埂荒荒镐镐宵奇怒棚元掌堪宵奇怒棚元掌堪储醛储醛璃璃蜕蜕椒胞琉巾从隧椒胞琉巾从隧蹦蹦旨泄蘑旨泄蘑暂暂坦皆坦皆级级砍窄至煽妥砍窄至煽妥肃肃茅啄套靛簿槐棋茅啄套靛簿槐棋拟拟溺甚奴励窃溺甚奴励窃厌厌洼洼贫骑贫骑念示盆雷念示盆雷珐珐蚤品养淆株蹬蚤品养淆株蹬师师斜退着斜退着违违儒羔儒羔贝贝蛤蛤铭绽铭绽邦字邦字鸯鸯炎魂炎魂谁顿谁顿穆胞情津穆胞情津讹讹悲迂唯悲迂唯怀吕饼怀吕饼翻炔票翻炔票雾报雾报派恬岩景碍莎漆怨派恬岩景碍莎漆怨谐谐孟隧蒲遏酒府孟隧蒲遏酒府绰销绰销忍忍附件附件 2 论文中英文摘要格式论文中英文摘要格式 作者姓名 作者姓名 王文峰 论文题目论文题目 煤中有害元素溶出分配规律及其地球化学控制 作者简介作者简介 王文峰 男 1970 年 4 月出生 安徽省庐江县人 1993 年 6 月本科毕业于安徽理工大学 获学士学位 毕业后在大屯煤电公司从事矿井地 质工作 1999 年 9 月师从中国矿业大学秦勇教授攻读地球探测与信息技术专业 硕士 博士学位 先后于 2002 年 6 月和 2005 年 6 月获硕士 博士学位 尔后 留校从事煤地球化学的教学与科研工作 近年来 主持国家自然科学基金项目 1 项 主持或参与国家 省部级科研项目 10 项 入选 2008 年度教育部 新世纪 优秀人才支持计划 获教育部自然科学奖二等奖 2008 中国地质学会第十 届青年地质科技奖银锤奖 2006 江苏省优秀博士学位论文奖 2006 煤炭 工业科学技术奖二等奖 2005 等奖励 出版专著 1 部 参与 1 部 在国内外 刊物上发表学术论文 41 篇 其中 SCI 收录 11 篇 EI 收录 15 篇 中中 文文 摘摘 要要 以山西平朔安太堡太原组 11 号煤层剖面分层样品和四家选煤厂系列煤样品为主要研究 对象 结合洗选模拟实验 借助有机溶剂混合和分级萃取以及逐级化学提取技术 采用 INAA ICP MS ICP AES CV AAS AFS GC GC MS TG FTIR SEM EDX XRD 等先进分 析测试方法 精细地刻化了煤中硫与 Hg 等 40 余种元素在煤层沉积时间剖面上的演化特征 从水溶 洗选 和有机溶剂萃取两个方面分析了煤中有害元素的溶出 迁移分配规律 从矿 物学 有机质化学结构与组成 成煤微环境等三方面探讨了煤中有害元素溶出分配的地球化 学控制机理 得出一些原创性成果 1 将安太堡 11 号煤层 厚 5 09m 剖面精细划分 24 个分层 凸现出各分层的物质 组成差异显著 发现煤层沉积期间多次遭受海水入侵 致使泥炭沼泽水动力条件 氧化还原 性 植物群落 煤物质组成在煤层沉积剖面上呈现规律性变化 其中 煤层中部 14 分层受 海水影响程度最大 导致此分层中 Sr Ba 比值 古盐度 经 Ti Sc 标准化后亲石元素 3 Si Al Mo Cr 等 的含量校正值出现最大值 而 Ce 异常却有最小值 亲海性元素 Ca Mg Cl 等的相对富集 自生矿物有所增加 陆源碎屑物相对减少 2 安太堡 11 煤不同煤分层的全硫 形态硫含量差异较大 其中有 5 个分层全硫含量 3 0 有 13 个分层有机硫含量 1 0 有 4 个分层黄铁矿硫含量 2 0 发现海水入侵影响 程度 粘土矿物及有机质含量高低是造成不同煤分层全硫 形态硫含量差异的主要原因 21 分层有异常高的无机硫含量 黄铁矿硫 9 45 硫酸盐硫 5 97 主要是其上覆各分层沉 积时硫酸盐的下渗作用以及下伏 22 分层中含有大量铝土矿矿物的高岭石的封堵作用造成 黄铁矿除了主要富集在镜质组分中 一般是基质镜质体 还常赋存于富氢组分 富氢镜质 体与角质体 中 黄铁矿与富氢组分有成因联系 联系两者的是 H2S 应与海水入侵以及粘 土矿物催化作用有关 3 Hg 等 40 余种元素在安太堡 11 煤层垂向上的变化是成煤微环境差异的表征 Hg Pb As 等有害微量元素在煤层剖面上与黄铁矿硫同步变化 指示它们主要赋存于黄铁 矿中 而有机硫与亲海性元素 Ca Mg Sr Cl Br 等显著正相关 与灰分显著负相关 反 映了它们成因上的联系 来自海水 并有部分有机亲和性 然而 受海水影响的中高硫煤中 稀土元素总量不一定较低 海水入侵对煤中稀土元素的影响是有限的 也不能改变稀土元素 的分配模式 安太堡 11 煤顶板 底板以及 24 个煤分层稀土元素的球粒陨石与北美页岩标准 化模式明显呈 3 种类型 指示了稀土元素载体矿物的三种源岩 花岗岩 沉积岩及玄武岩 发现灰分越低的煤分层越富集重稀土 暗示重稀土比轻稀土有更强的有机亲和性 4 安太堡 11 煤中 Hg Pb As 等 16 种有害元素的赋存状态是复杂而多元的 但或多 或少都与无机质 有机质有联系 只是联系程度不同 总体来看 绝大多数有害元素主要为 硅酸盐结合态 其次是硫化物结合态 而有些被认为在地壳中彼此地球化学联系不大的元素 与矿物 如 U Be 与黄铁矿 Sb 与碳酸盐矿物 在煤中却密切相关 这主要与煤中有机质 参与元素的迁移与分配作用有关 5 安太堡 11 煤中主要的矿物是高岭石与黄铁矿 其次包含少量的蒙脱石 伊利石 石英 水铁矾 石膏 方解石 菱铁矿 白云石 菱镁矿 滑石 铝土矿矿物等 顶部煤分 层中蒙脱石 伊利石等矿物组合是大量海水入侵及顶板泥灰岩沉积时碱性溶液下渗作用于高 岭石蚀变而成 水铁矾与石膏可能是黄铁矿的氧化产物 沉积作用一般不能生成滑石 菱镁 矿 铝土矿矿物 但它们在 11 煤中存在应为自生矿物 有共生组合关系 可能与有机质的 参与作用有关 海绿石 石膏及菱镁矿的存在是煤层受海水入侵影响的矿物学证据 11 煤 中还发现一些磷灰石 红柱石 钙铝榴石 镁铝榴石等重矿物 一些可能是水铝英石 海绿 石 榍石 宇宙尘的微米 亚微米级球粒体以及一些含 Na 的纳米级矿物 推断这种铝硅酸 盐微球体可能在煤中普遍存在 水铝英石应为胶体成因 部分微球粒可能是由火山球粒体经 生物作用蚀变而成 个别微球体可能来自宇宙尘 煤中这些亚微米球粒体与纳米级矿物可能 是构成可吸入燃煤飞灰颗粒的重要来源 6 系统研究了煤中 20 余种有害元素在洗选过程中的迁移行为 分配规律及其地球化 学控因 发现元素赋存状态 元素载体矿物的嵌布方式 选煤工艺对煤中元素洗选脱除程度 的控制起决定作用 重力选煤对以后生矿物或大颗粒矿物为载体的元素脱除程度较高 对浮 选 入选物料粒度一般小于 0 5mm 而言 入料粒度越小 微细粒同生矿物 其中的有害元 素脱除程度越高 电选对赋存在有较高介电常数矿物中的元素脱除程度较高 此外 煤中大 量有机质对嵌布其中的矿物构成有重要影响 使其晶形发育不完整 晶格中存在缺陷 密度 4 下降 从而影响其分离效果 7 传统的物理洗选能降低煤中的灰分与硫分 也能降低绝大数有害微量元素的含量 但洗前煤中以有机相赋存的有害元素 如 Br U 等 在选煤过程中向精煤中富集 以微细粒 侵染状矿物为载体的元素 如 Sb 向中煤中富集 以后生矿物赋存的元素 如 Ca 在煤泥 中富集 以可溶矿物赋存的元素 如 Ca Mg 等 向洗选水中迁移 煤颗粒具有选择性吸附 洗选水中少数重金属离子 如 Cu 等 的特性 8 基于对分层煤样的超强有机溶剂 CS2 NMP 的混合萃取及分级萃取 甲醇 苯 丙酮与四氢呋喃 开展了煤中有害元素提取溶出分配与有机结构关系的前沿性研究 发现 凝胶化指数 GI 萃取物中生物标志化合物 如伽玛蜡烷 C3122S C3122R 等有机地化参数 与无机地化参数 Sr Ba 盐度等 在煤层沉积时间剖面上同步变化 9 溶剂萃取出来的有机物主要由煤中的酚 醇 醚结构组分和少量的脂肪族 芳烃 等组成 而富含缩合芳环结构的组分则不易被萃取 从而表现在热解红外图谱上有较高的 H2O 3500 3700cm 1 CO2 2358 cm 1 含氧基团 1100 1300 cm 1与 1278 cm 1 以及一 些杂原子基团 400 1000 cm 1 吸收峰 卤代烃与金属卟啉等 而碳氢化合物包括 CH4的 吸收峰 2929cm 1组合峰 芳香结构的吸收峰 1650cm 1 1500 1550cm 1 相对较低 反 映了煤中赋存有较多含氢氧键官能团的化合物 杂原子多与煤中小分子结合易于萃取断裂 10 大致确定了煤中有害元素与有机大分子及小分子的亲和程度 Al Br Co Cr Ni Zn 等较多地富集在小分子有机化合物中 其它所研究的元素 如 As Fe 等 则相对富集在较大分子量的化合物中 有机萃取物中大多数元素主要富集在不 溶的干酪根中 就族组分而言 大多数元素富集非烃中 As 等少数富集在沥青质中 11 发现萃取物中无机元素含量与有机溶剂的极性正相关 绝大多数元素含量在甲醇 萃取物中含量最高 在丙酮萃取物中次高 而在苯萃取物中含量最低 大多元素在有机萃取 物中无机元素含量明显小于原煤中含量 但主要以有机相赋存的元素 如 Cl Br U 等 例 外 这说明有机溶剂萃取技术虽然能最大化地脱除煤中矿物 达到煤的脱矿洁净 但萃取物 中也富集了有机相的有害元素 还可能存在纳米级矿物 存在环境危害潜势 12 成煤微环境条件对煤中有害元素溶出分配具有一定控制作用 与基本上不受海水 影响的煤分层相比 受海水显著影响的煤分层中有害元素较难洗选脱除 但在有机溶剂萃取 过程中溶出率较高 此外 显微煤岩组分种类与煤中有害元素的溶出分配特征也有一定关系 关键词 煤 有害元素 地球化学 洗选 萃取 分配 安太堡 5 Extracting and Cleaning Partition of Hazardous Elements in Coal and Its Geochemical Control Wang Wenfeng ABSTRACT The roof bottom and twenty four coal ply samples were collected by finely partitioning No 11 coal seam of Taiyuan Formation from Antaibao mining district Pingshuo Shanxi and the samples of feed coal cleaned coal middlings and coal slime were derived from the four coal preparation plants INAA ICP MS ICP AES CV AAS AFS GC GC MS TG FTIR SEM EDX XRD techniques were used on these samples In addition the simulated coal cleaning experiments and techniques of organic solvent extraction and sequential chemical extraction were used in this thesis The author investigated in detail the vertical evolution of sulfur and more than 40 other elements on the profile of the seam the partitioning of hazardous elements during the coal cleaning and extracting and its geochemical control on the basis of analyzing mineralogy chemical construction of the organic matter and the microenvironment of peat forming swamp The results were showed as follows 1 The significant differences of coal material composition between the 24 coal plies were showed by finely partitioning No 11 coal seam 5 09m from Antaibao mining district The peat swamp were invaded by seawater many times during the peat accumulation period which leads to the vertical variability of hydrodynamic conditions redox potential plant community and material composition of peat swamp on the profile of the seam The biggest transgression took place during the deposition of the middle part of the seam ply 14 which leads to the fact that the ply has the maximium for Sr Ba ratio paleosalinity and the content of lithophile elements e g Si Al Mo etc normalized by Ti or Sc the minimal Ce anomaly the enrichment of thalassophile elements e g Ca Mg Cl etc and also leads to the changes of terrigenous detrital minerals i e authigenic minerals increasing and terrigenous detrital minerals decreasing somewhat 2 There are great differences in the contents of total sulfur and forms of sulfur between the 24 plies total sulfur content 3 0 wt for 5 plies organic sulfur content 1 0 wt for 13 plies and pyritic sulfur content 2 0 wt for 4 plies It is found that the differences were mainly caused by the degree of marine influences and the contents of clay minerals as well as the organic matter The 7 ply 21 has an abnormal high content of inorganic sulfur pyritic sulfur 9 45 wt and sulfate sulfur 5 97 wt This was caused by the presence of bauxite minerals bearing kaolinite in the underlying ply 22 blocking the further infiltration of sulfate from the overlying plies during the deposition Apart from enriched in vitrinite generally desmocollinte pyrite is usually concentrated in bearing hydrogen constituents mainly clarovitrinite and cutinite indicating a genetic relationship between the pyrite and bearing hydrogen constituents H2S may be a medium and the invasion of seawater and the presence of clay minerals provide a possibility for the association 3 The vertical variability of Hg and more than 40 other elements in the seam is associated with the difference of the microenvironment of peat forming swamp The vertical content variation of pyritic sulfur is similar to that of Hg Pb and As in the seam indicating that they mainly occurred in pyrite However organic sulfur has a well positive correlation with thalassophile elements Ca Mg Sr Cl and Br and a negative correlation with ash indicating an association with the extent of marine influences in origin and partially with the organic matter It is not certain that the total REE contents in moderate and high sulfur coals influenced by seawater are lower The influence of seawater invasion on REE in coal is limited and it cannot markedly change the distribution pattern of REE The Chondrite and North America Shales normalized REE patterns of the roof bottom and 24 plies of the seam 11 in Antaibao mine are obviously shown as three types suggesting three types of source rock of minerals as carrier of REE granite sedimentary and basalt If there is a less ash yield in one coal ply there will be more HREEs relative to LREEs This indicates that the ability of the HREE to form complexes with organic compounds is more stable than those of the LREE 4 The modes of occurrence of the major and trace elements especially Hg and 15 other hazardous elements in the seam were studied in detail by the organic solvent extraction and sequential chemical extraction It is discovered that the elements in coal have complicated and multivariant modes of occurrence and more or less associated with the inorganic and organic matter but in different degree So far as the studied seam is concerned most hazardous elements distribute mainly in silicate state and to a lesser extent in sulfide state Some elements that were thought to show a faint relationship with minerals Be as well as U with pyrite and Sb with carbonate in other rocks are found to have a strong interrelation in the coals which is mainly due to the influence of the organic matter participation 5 Kaolinite and pyrite dominate in the coal seam and there are minor amounts of illite montmorillonite quartz szomolnokite gypsum calcite siderite dolomite magnesite talc bauxite minerals A certain amount of montmorillonite and illite present in the top part of the seam ply 1 are probably attributed to the transformation and leak of kaolinite due to the infiltration of alkaline fluid from the overlying marine roof marlite during the diagenetic stage Szomolnokite and 8 gypsum were possibly caused by the oxidization of pyrite Generally it is difficult to form talc magnesite and bauxite minerals due to deposition so they are rare in coal but occur in the studied coal as nondetrital minerals They have a certain relation in origin and may be associated with coaly organic matter The presence of magnesite glauconite and gypsum in the coal can directly confirm that the peat was once invaded by sea water In addition some heavy minerals such as apatite andalusite hessonite and pyrope some microm and sub microm grained spherical minerals such as cosmic dust allophane glauconite and sphene and bearing Na nanominerals can be found in the coal It is concluded that these aluminosilicate spherical finer grained minerals are ubiquity in coal Allophane is formed from colloidal matter and the partial spherical finer grained minerals probably from altered volcanogenic ball by biological agent and the individual cosmic dust from cosmos Some sub microm and nano minerals present in coal maybe play an important role in the formation of inhaling fly ash 6 The partitioning and removal efficiency of more than 20 hazardous elements during the coal cleaning and their geochemical control were systematically investigated The partitioning behavior of a given element during the cleaning processes is mainly controlled by its modes of occurrence the distribution form of its host minerals and the types of cleaning technique Elements associated with coarse epigenetic minerals can be removed more easily by dense medium separation methods elements in coal particle size 0 5mm easily removed by floatation with the decrease of particle size fine syngenetic minerals and elements associated with minerals with a high dielectric coefficient easily removed by electrical concentration In addition large quantities of organic matter in coal have an important influence on encapsulated minerals causing bad developed crystal form imperfect crystal lattice and the decreasing density which affects the removal efficiency of minerals 7 The physical coal cleaning is not only effective in the removal of ash and sulfur but also in reducing the concentration of most hazardous trace elements However organically bound elements e g U Br etc are mostly enriched in the cleaned coal elements e g Sb etc associated with finer grained or finely disseminated minerals mainly in the middlings and elements e g Ca etc associated with stripping epigenetic minerals mainly in the coal slime elements e g Mg and Ca associated with soluble minerals tend to migrate into the process water where the minority heavy metal ion e g Zn can be adsorbed by the coal particle during the cleaning 8 The relationships between the partitioning of hazardous elements during coal organically extracting and chemical construction of the organic matter were gropingly investigated on the basis of the fractional alcohol acetone benzene tetrahydrofuran and mixed extractions ultrastrong CS2 NMP solvent of the ply samples It is discovered that the vertical variation of some organically 4 geochemical parameters such as the biomarkers e g gammacerane C3122S C3122R and gelatination index GI is similar to that of some inorganically geochemical parameters such as Sr Ba ratio and paleosalinity on the profile of the seam 9 The organic extracts mainly consist of some compositions of phenolic alcoholic and etheric structure and minor aliphatic and aromatic compounds while it is relatively difficult to extract the condensation aromatic ring rich compositions from the coal The absorption peaks on the TG FTIR patterns are high for H2O 3500 3700cm 1 CO2 2358 cm 1 bearing oxygen groups 1100 1300cm 1 and 1278cm 1 and bearing heteroatom groups 400 1000cm 1 including halogenated hydrocarbon and metallic porphyrin and are relatively low for hydrocarbon including CH4 2929cm 1 and aromatic compounds 1650cm 1and 1500 1550cm 1 This suggests that the coal contains many compounds with bearing oxyhydrogen function groups and that hetero atoms tend to be combined with organic micromolecule compounds and are readily extracted by organic solvents 10 The affinity of hazardous elements and organic macromolecule micromolecule compounds were preliminary studied Elements Al Br Co Cr Ni and Zn are more enriched in organic micromolecule compounds while other studied elements e g As Fe etc are relatively enriched in organic macromolecule compounds In the extract most studied elements are enriched in the insoluble kerogen but with respect to the group type fractions most elements are enriched in non hydrocarbon and As V Ba etc in asphaltene 11 The concentrations of most elements in the extract of coal are obviously positively correlated with the polarity of the organic solvent by the fractional extraction i e most studied elements have the highest concentration in the methyl alcohol extract higher in the acetone extract and lowest in the benzene extract Apart from organically bound elements e g Cl Br U etc most other studied elements have a relatively lower concentration in the extract than in original coal This suggests that minera