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- The refined process of 2,6 di tert butyl 4 methylphenol is studied by means of batch distillation and the design of technological process on the basis of the result is completed. 採用間歇精餾方法,對2,6二叔丁基對甲苯酚的精製過程進行了研究,並根據研究結果進行了工藝過程的設計。
- Hexamethylene glycol bis[3 (3,5 di tert butyl 4 hydroxyphenyl)] propionate was synthesized without solvent with methyl 3 (3,5 di tert butyl 4 hydroxyphenyl) propionate and hexamethylene glycol as raw materials and organic tin as catalyst. 以 3 -(3 ,5 -二叔丁基 -4-羥基苯基 )丙酸甲酯 (簡稱 3 ,5 -甲酯 )與 1 ,6-己二醇為原料 ,有機錫為催化劑 ,在無溶劑的條件下合成了己二醇雙 [3 -(3 ,5 -二叔丁基 -4-羥基苯基 ) ]丙酸酯。
- As per our clients overseas, we are looking for suppliers of below products.Ethyl malonyl chloride CAS NO:36239-09-5 Di tert butyl malonate CAS NO:541-16-2 Pls contact us for more details. 求購丙二酸乙酯醯氯和二叔丁基丙二酸 應我公司國外客戶需求,特尋如 下產品的中國生產廠商 丙二酸乙酯醯氯 CAS NO:36239-09-5 二叔丁基丙二酸 CAS NO:541-16-2 有意者,請聯繫。
- Keywords addition reaction;selectivity;potassium tert butoxide;methyl (3;5 di tert butyl 4 hydroxyphenyl) propionate; 加成反應;選擇性;叔丁醇鉀;3.;5-二叔丁基-4-羥基苯丙酸甲酯;
- Keywords 2;6 di tert butyl 4 methylphenol (BHT);oxygenfreeradicals;antioxidation; 二叔丁基-4-甲基苯酚;氧自由基;抗氧化作用;
- Keywords methyl 3;5 di tert butyl 4 hydroxyphenylpropionate;1;6 hexanedimine;aminolysis;reaction mechanism;reaction kinetics; 二叔丁基-4-羥基苯丙酸甲酯;己二胺;氨解反應;反應機理;反應動力學;
- NEW PROCESS FOR PREPARING METHYL 3,5 DI TERT BUTYL 4 HYDROXYBENZYLPROPIONATE WITH 2,6 DI TERT BUTYLPHENOL AND METHYLACRYLATE 殷金柱,魏東煒,宋衛,李復生, 二叔丁基苯酚與丙烯酸甲酯反應製取3,5-二叔丁基-4-羥基苯丙酸甲酯的工藝
- Keywords phenol tert butylation;methyl tert butyl ether;2;4 di tert butyl phenol; 苯酚叔丁基化;2.;4-二叔丁基苯酚;甲基叔丁基醚;
- Ethyl tert butyl ether is synthesized from ethanol and tert butyl alcohol by reaction distillation. 以乙醇和叔丁醇為反應物,採用反應精餾法合成了乙基叔丁基醚。
- The influence of the p tert butyl phenolic resin level on the dynamic properties of NR/NBR/ENR blend was investigated. 研究了對叔丁基酚醛樹脂用量對NR/NBR/環氧化天然橡膠 (ENR)共混物動態力學性能的影響。
- Its structure was determined as 2,4 di tert butylphenol by the spectrum data of IR, MS, 1HNMR and 13 CNMR. 經過IR,MS,1HNMR和13CNMR等波譜數據分析,確定其結構為2,4-二叔丁基苯酚。
- Synthesis of 2,5di tert butylhydroquinone by alkylation of hydroquinone with methyl tert butyl ether (MTBE) was studied. 研究了以對苯二酚和甲基叔丁基醚 ( MTBE)為原料 ,以酸性陽離子交換樹脂為催化劑合成 2 ,5二叔丁基對苯二酚 ( DBHQ)。
- Synthesis of sterically hindered dicyclohexylmethyl、L menthyl and tert butyl diazoacetate by diazo transfer was described on this paper. 研究了用重氮轉移法合成具有較大空間位阻的重氮乙酸二環己基甲酯、L-薄荷酯和叔丁酯。
- The advanced technical study on synthesis of Tert Butyl benzene was introduced.The totyal yield and the quality of Tert Butyl benzene was improved. 介紹了叔丁基苯合成工藝改進的方法,提高了產品的質量和收率。
- The old technological conditions of antioxidant 1076 being prepared from. 2,6 di tert butyphenol,methacrylate and n octadecanol have been improved. The yield is above 80%. 對以 2 ,6 -二叔丁基苯酚、丙烯酸甲酯和十八碳醇為主要原料合成抗氧劑 10 76的原工藝條件進行改進 ,使總收率達 80%25以上。
- The old technological conditions of antioxidant 1076 being prepared from.2,6 di tert butyphenol,methacrylate and n octadecanol have been improved.The yield is above 80%. 對以2,6-二叔丁基苯酚、丙烯酸甲酯和十八碳醇為主要原料合成抗氧劑1076的原工藝條件進行改進,使總收率達80%25以上。
- 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型強酸性陽離子交換樹脂作催化劑、以乙醇和叔丁醇為原料,對合成乙基叔丁基醚的反應過程進行了研究。
- Ethyl tert butyl ether (ETBE) is a good additive for gasoline with high octane number.Some typical production technologies overseas and domestic research situations of ETBE synthesis are introduced. 乙基叔丁基醚(ETBE)是一種性能優良的高辛烷值汽油調和組分。
- The continuous synthetic process of 2,4 di tert butylphenol was studied in a tubular fluid bed reactor, while isobutylene was used as alkylating agent and strong acidity positive ion exchange resin as catalyst. 以強酸性陽離子交換樹脂為催化劑 ,異丁烯為烷基化劑 ,在管式流化床連續反應器中研究了苯酚烷基化反應合成 2 ,4 二叔丁基苯酚的反應工藝。
- N' tert butyl N substituted acylurea N′-叔丁基N取代醯基脲