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Acetic acid equipments using material in PTA, PVA, aldehyde oxidation and methyl alcohol carbonyl synthetic four plants in chemical industry and chemical fibre production are analyzed.
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对化工化纤生产中的精对笨二甲酸、聚乙烯醇、乙醛氧化生产醋酸与甲醇羰基合成醋酸4个装置醋酸设备用材进行分析,并对含Cl-、含Br-、含I-的醋酸及含Cl-的甲乙混酸对不锈钢、铜、钛与镍基合金等金属材料腐蚀原因作了讨论。 |
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Study on the microwave synthesis of acetylsalicylic acid by p-Toluene Sulphonic Acid catalyst;
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对甲苯磺酸催化微波合成乙酰水杨酸的研究 |
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This paper reviews the research of Chinese medical syndromes of Sjogren syndrome in the past three years.
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对近3年有关干燥综合征中医证候学研究方面的文献资料作回顾整理。 |
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When the loop-flow aeration technology is used to treat oil-containing chemical wastewater with COD concentration of 4 000 mg/L after anaerobic treatment,the effluent COD,BOD5 and NH3-N are 110 to 150 mg/L,8 to 13 mg/L and 5 to 9 mg/L respectively.
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对经厌氧处理后COD约为4 000 mg/L的油脂化工废水采用环流曝气工艺进行处理,出水COD为110~150 mg/L、BOD5为8~13 mg/L、NH3-N为5~9 mg/L。 |
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Significant progress in research on the molecular pathogenesis of Alzheimer disease(AD) has been made in the last two decades.
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对老年性痴呆症发病的分子机理的研究在近20余年取得了很大进展,其中一个里程碑式的发现就是阐明了高度磷酸化的微管相关蛋白tau为组成病理性双螺旋细丝的主要蛋白成分。 |
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Study on Legal Protection of Subject s Right of Informed Consent in Clinical Trial;
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对临床试验中“受试者知情同意权”法律保护的研究 |
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Research progress on nursing and treatment of chronic cardiac failure patient;
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对慢性心力衰竭病人治疗与护理的研究进展 |
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Based on stereo-analysis of these two oxidized products,the mechanism of costunolide oxidized by m-CPBA under the given conditions is tentatively expounded.
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对木香烯内酯的间氯过苯甲酸氧化反应进行了研究。 |
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On the Social Functionality of Rural Technology Core Households;
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对农村科技核心户社会功能的探讨 |
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Performance of Co/diatomite catalyst in selective hydrogenation of cinnamaldehyde to cinnamyl alcohol was studied.
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对肉桂醛选择加氢制肉桂醇的钴/硅藻土催化剂进行了研究。 |
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The study on separation and purification of oil and gum in the Artemisia aphaerocephala kraschen seed is described.
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对沙蒿籽的油脂、胶质进行了提取分离和纯化研究,沙蒿籽含油脂20%,沙蒿油不饱和脂肪酸含量高达90%以上。 |
