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- Dichlorofluorobenzene is prepared from pchloronitrobenzene by catalyic chlorination,fluorination and thermic chlorination, the total yield is 73%. 以对氯硝基苯为原料经催化氯化、氟化、热氯化三步反应制备2，4二氯氟苯，总收率可达73%25。
- It is very important to biopsy for every polyform pathological lesion in order to reduce the misdiagnosis and missed diagnosis. 对息肉状病变应重视其病理学检查，逐个取活检，以减少不必要的误诊和漏诊。
- Results The radioreactions in maxillary sinus and sphenoidal sinus might be classified as patch form, crescent form, ring form and polyform. 结果上颌窦和蝶窦的放射反应可分为片状型、月牙型、环型和息肉型。
- This summary of literatures tries to give us usful aids in which dioxygen complexes are designed and synthesized and employed as oxidants or as cataly... 本文献综述试图对设计和合成分子氧络合物,并把它们用作氧化剂、有机配位体催化氧化的中间体、加氧酶和氧化酶的研究模型、或分离和制取氧过程中的载氧体,提供有用的参考。
- Cocoa butter equivalent(CBE)production from palm oil m idfraction(POMF)and stearic acid methyl ester(SAME)by interesterification cataly zed by 1,3 specific lipases in solvent free system was studied. 研究了在无溶剂系统中,利用1,3位置特异性脂肪酶催化POMF与硬脂酸甲酯进行酯交换反应制取类可可脂。
- Catalyic Synthesis of n-Butyl lactate formate with anhykrous calcium chloride 乳酸正丁酯的简易合成
- Keywords Fatty Acid Nitriles;Glycerides;Catalyic Ammoniation-Dchydration; 脂肪腈;脂肪;催化氨化和脱水;
- Keywords Perovskite type catalyst;Oxidative dehydrogenation of ethanol;Catalyic activity; 钙钛矿型催化剂;乙醇氧化脱氢;催化活性;
- Keywords Aluminophosphate molecular sieve;Hydrothermal synthesis method;Alkylation;Long-chain alkylbenzene;Enviroment amity cataly; 关键词水热合成法;磷铝分子筛;烷基化;选择性;环境友好;
- naphtha polyforming 石脑油聚合重整
- catalytic polyforming 催化聚合重整
- polyforming 裂化重整联合过程
- catalyic synthesis 催化合成
- polyform distillate [化] 聚合重整馏分
- polyformv. 聚合重整
- polyform process 聚合重整
- Cataly 催化
- cataly cracking 催化裂化
- cataly engineering 催化剂工程
- cataly st oxidation 催化氧化
