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- coal tar pitch volatiles 煤焦油揮發(fā)
- Mesophase microbeads were prepared from coal tar pitch by thermal condensation in atmospheric pressure. 以煤焦油瀝青為原料采用常壓熱縮聚工藝制備中間相瀝青微球。
- Carbon foams were prepared from coal tar pitch, petroleum mesophase pitch, and AR pitch. 分別以煤瀝青、石油中間相瀝青和AR瀝青為前驅體制備炭泡沫材料。
- The structure change of medium coal tar pitch(MCTP) during co-carbonization was investigated by using NMR. 使用一種工業(yè)重質(zhì)油和中溫煤焦油瀝青進(jìn)行共炭化反應，改善了煤瀝青的炭化性質(zhì)。
- The results show that coal tar pitch and terephthalic aldehyde can be used to synthesize COPNA resin. 結果表明,煤瀝青能夠與對苯二甲醛合成COPNA樹(shù)脂,其反應機理為酸催化下的陽(yáng)離子型縮聚反應;
- Boron-substituted polyaromatic mesophase was prepared by co-pyrolysis of a coal tar pitch with pyridine-borane complex under autogeneous pressure. 以煤焦油瀝青和吡啶硼烷為原料采用加壓熱縮聚工藝制備硼取代聚芳烴中間相瀝青。
- Modification of coal tar pitch(CTP) as carbon materials was studied using 4-methyl benzaldehyde(4-MB) as modifier by an acid catalyst. 以對甲基苯甲醛(4-methyl benzaldehyde,簡(jiǎn)稱(chēng)4-MB)為改性劑,在對甲苯磺酸(PTS)的作用下對煤瀝青進(jìn)行了改性研究。
- Distilling the low temperature coal tar pitch before coking tests, get the pitch with different volatile at different temperature. 在煉焦實(shí)驗之前，將低溫煤焦油進(jìn)行了蒸餾，通過(guò)不同的蒸餾溫度得到揮發(fā)分不同的瀝青。
- Modification of coal tar pitch as a carbon precursor was studied using divinylbenzene (DVB) as a cross linking agent by the aid of acid catalyst. 首次以二乙烯基苯為交聯(lián)劑,在酸性催化劑的作用下對煤瀝青進(jìn)行了改性研究,同時(shí)對改性后的煤瀝青進(jìn)行顯微結構和耐熱性分析。
- Needle coke was prepared through the co-carbonization of toluene soluble fraction (TS) of coal tar pitch and waste polystyrene (WPS) in a tube bomb. 摘要采用煤焦油瀝青的甲苯可溶物和廢聚苯乙烯共碳化制備針狀焦，考察了中間相瀝青中烷基含量對針狀焦性能的影響。
- Aqua mesophase pitch (AMP) was prepared through oxidation of coal tar pitch with mixtures of concentrated sulfuric acid and nitric acid. 以煤焦油瀝青為原料,經(jīng)過(guò)氧化、堿溶制備出水性中間相瀝青,著(zhù)重考察了制備條件對水性中間相瀝青在水相中凝膠化的影響。
- This article deals with the kinetics of thermal decomposition process of non-coking coal with modified coal tar pitch used in a steel company. 本文對國內某鋼鐵公司焦化廠(chǎng)所用的非焦煤配改質(zhì)瀝青的分解過(guò)程進(jìn)行了動(dòng)力學(xué)研究。
- Because of the complicacy of the components of coal tar pitch, the simulation of preparation process of pitch-based composites has not been developed widely. 由于煤瀝青成分的復雜性,對煤瀝青基復合材料的制備過(guò)程的模擬還沒(méi)有得到廣泛開(kāi)展。
- Differential scanning calorimetry (DSC) and simultaneous thermal analysis (TG, DTA) are employed to study on thermal behavior of the modified coal tar pitch. 采用差示掃描量熱法 (DSC)和熱重 -差熱分析 (TG DTA)對改性前后的煤瀝青進(jìn)行熱行為分析。
- Both the oxidation resistance and the electrical conductivity of the pitch coke can be improved when a suitable amount of activating agent is added in the coal tar pitch. 用這種煤瀝青制得的瀝青焦 ,其抗氧化性提高 ,在活化劑加入量適宜時(shí)瀝青焦的導電性能也有所提高
- Thc results showed that porsity, bending strength, compressive trength of SCFRC were increased with the increase of the content of coal tar pitch while density decreased. 研究表明，隨著(zhù)粘結劑量的增加，所得炭／炭復合材料的體積密度減小，顯氣孔率增大，抗彎強度和抗壓強度增大。
- Abstract : Tantalum-containing pitch as a carbon precursor was synthesized by an in situ liquid phase reaction between coal tar pitch and tantalum pentachloride. 摘要 ： 以煤瀝青為原料，氯化鉭為鉭源，通過(guò)化學(xué)反應制備了含鉭瀝青前驅體。
- Main business: coal, Metallurgical coke, Bituminous coal,Coal tar pitch,Coking benzene, Fuel oil, Mixed Oil, Refined Naphthalene , washed oil, Anthracene oil etc.GB products. 主營(yíng)：煤炭、冶金焦、煤焦油、煤瀝青、焦化苯、燃料油、混合油、精萘、工業(yè)萘、硫酸銨、輕苯、粗苯、洗油、蒽油等國標產(chǎn)品。
- The condensed polynuclear aromatic(COPNA)resin was synthesized by using coal tar pitch as monomer and trioxane as cross-linking agent in the presence of P-toluene sulfonic acid. 以煤瀝青為原料、三聚甲醛為交聯(lián)劑,在對甲苯磺酸的催化作用下合成縮合多環(huán)多核芳香烴(COPNA)樹(shù)脂。
- Contracted with RUAL TRADE LIMITED, the third largest aluminum company in the wor ld, we exported3000 tons' BOTTOM CATHODE BLOCKS and10000 tons' COAL TAR PITCH in2004, which amounted near300 million US Dollars. 輳??居朧瀾縞系諶?舐烈倒?盡?礪匏孤烈導?懦隹誄山輝
