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- Ethyl tert butyl ether is synthesized from ethanol and tert butyl alcohol by reaction distillation. 以乙醇和叔丁醇为反应物,采用反应精馏法合成了乙基叔丁基醚。
- Objective] GC analytical method for butyl ether in the workplace air using sampling by charcoal tube was studied. 研究炭管采集空气中丁醚的气相色谱分析方法。
- In the presence of aminosulfonic acid catalyst,lactic acid reacted with n butyl alcohol to form n butyl lactate. 以氨基磺酸为催化剂,实现了乳酸与正丁醇反应合成乳酸正丁酯。
- Synthesis of 2,5di tert butylhydroquinone by alkylation of hydroquinone with methyl tert butyl ether (MTBE) was studied. 研究了以对苯二酚和甲基叔丁基醚 ( MTBE)为原料 ,以酸性阳离子交换树脂为催化剂合成 2 ,5二叔丁基对苯二酚 ( DBHQ)。
- The Latest progress on the method, etherifying reactor and catalyst of production of methyl tertiary butyl ether (MTBE) is reviewed. 介绍了甲基叔丁基醚(MTBE)的生产方法、工艺流程、醚化反应器和催化剂的最新研究进展。对我国的MTBE生产提出了建议。
- Tri n butyl citricate(TBC)was synthesized with zeolite supported ZrO 2 Dy 2O 3/SO 4 2 solid super acids(ZDSH) as catalysts. 用固体超强酸催化剂(ZrO2?Dy2O3/SO42 -?沸石分子筛) 催化合成柠檬酸三丁酯(TBC) 。
- The ground water in some parts of the USA has been contaminated by leaking oil tanks or pipelines, leading to higher Methyl Tertiary Butyl Ether MTBE concentrations. 美国某些地区之地下水受储油槽或油管泄漏污染而甲基第三丁基醚MTBE含量较高。
- In this paper, the research progress on the exposure,metabolism,toxicity and endocrine disruptingeffects of di n butyl phthalate were reviewed. 邻苯甲二酸二丁酯;;内分泌系统;;成形剂;;毒性作用;;塑料;;职业;;环境;;
- Three plasticizers were used: namely dioctyl phthalate (DOP), di n butyl phthalate (DBP) and di(-2-ethyl-hexyl)sebacate(DOS). 研究中采用的增塑剂为邻苯二甲酸二辛酯 (DOP)、邻苯二甲酸二正丁酯 (DBP)和癸二酸二辛酯 (DOS)。
- The bulk and solution photopolymerization of vinyl butyl ether were studied using diph-enyl-4-thiophenoxyphenyl sulfonium salt (DPTS) as photoinitiator. 以二苯基-4-苯硫基代苯基硫鎓盐(DPTS)为光引发剂,研究了乙烯基正丁醚的本体和溶液光聚合。
- The influence facts upon adhesive strength,such as hardening agent content, n butyl acrylate content,synthesis condition were discussed. 考察了固化剂含量、预固化及预聚合时间、丙烯酸丁酯含量以及引发剂含量对胶粘剂力学强度的影响。
- Producers switched to methyl tertiary butyl ether (MTBE), but it has been implicated in contaminating groundwater, and state governments are banning it. 制造厂商曾经改用甲基三级丁醚(MTBE),但这种化学物质可能与地下水污染有关,因此美国政府已禁止使用。
- N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization. 以邻氯苯甲酸和对乙氧基苯胺为原料,经过胺的苯基化、二芳胺的环化、N-烷基化、硫代化反应合成了N-丁基-2-乙氧基硫代吖啶酮。
- The effects of the amount of sodium bisulfate monohydrate,the amount of n butyl alcohol and reaction time on the yield of n butyl gallate have been investigated. 以没食子酸和正丁醇为原料,采用一水合硫酸氢钠作催化剂合成没食子酸正丁酯。
- The n butyl gallate was synthesized by esterification of butyl alcohol and gallic acid in catalysis of p methyl toluenesulfonic acid (PTSA) induced by microwaves. 采用微波辐射技术,以对甲苯磺酸(PTSA)作催化剂,没食子酸和正丁醇直接酯化合成没食子酸正丁酯。
- A study was made on the synthesis of n butyl acetate and isobutyl acetate with aminosulfonic acid as the catalyst.The optimum conditions were chosen by the experiments. 研究了以氨基磺酸为催化剂,催化合成乙酸正丁酯和乙酸异丁酯的工艺过程,实验确定了其优惠反应条件。
- Ethylene glycol tertiary butyl ether(ETB) is a product with lower photochemical reactivity and can be an acceptable subst ituted solvent for ethylene glycol butyl ether in some applications. 乙二醇叔丁基醚 ( ETB)是一种具有低光化学反应性产品 ,在一些应用领域中可作为乙二醇丁醚 ( EB)的取代溶剂。
- Hoping for dibutyl carbitol(DBC)through the dehydration of glycol butyl ether,a new highly effective extractant system for gold with structure similar to DBC was synthesized in this paper. 采用乙二醇单丁醚脱水的方法合成了高效的具有类似二丁基卡必醇结构的新金萃取剂体系 ,探讨了其合成工艺。
- The synthesis of ethyl tert butyl ether (ETBE) with ethanol (EtOH) and tert butyl alcohol (TBA) by using A 15, S 54 and D 72 strong acid cation exchange resins as catalysts was studied. 用A-15、S-54和D-72型强酸性阳离子交换树脂作催化剂、以乙醇和叔丁醇为原料,对合成乙基叔丁基醚的反应过程进行了研究。
- Discusses the mechanism and harmfulness of undesired formation of butyl ether by inter-molecular dehydration of n-butanol during DBP production. Preventive measures are also provided. 着重讨论了DBP(邻苯二甲酸二丁酯)生产过程中,丁醇分子间脱水生成丁醚的副反应机理及危害,并找出了预防副反应发生的措施。