丁二酸的
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The main products are: HH-01 fungicides HH-02 organic dispersant HH-03 cationic starch Wood HH-04 cationic starch Department HH-05 modified starch warp sizing agents also sell German Baker Chemical Co., Ltd. Main Products Defoamer series product: E640, T50 Surface Sizing Agent: A281, A288, K532, pesticides / medicine / veterinary medicine a variety of intermediate products (p-Bromo-p-Bromotoluene bromoform 1 - bromo-heptane triethyl citrate 1,2, 3 - Three Bromopropane 3 - chloro -4 - fluoro bromobenzene Bromotoluene ethylbenzene 4 - bromo -2 - bromo-ethyl-Chloroaniline 2 - bromo--5 - chloro-toluene 3 - bromo-methyl 1,6 C - Dibromo Hexane 1 - bromo -4 - nitrobenzene o-methoxy benzaldehyde acid propyl bromide p-fluorotoluene bromo dodecane toluene four of iodine bromide bromoethane three citric acid tert-butane n-butyl 2 - bromo-p-bromo-butane Hydroxybenzaldehyde between 2 - bromo-propionic acid bromide veratryl aldehyde inter-bromo-trifluoro-n-hexane of toluene on Bromoxynil Bromotoluene toluene ethylbenzene o-bromophenol bromide bromide Cyclohexane Cyclopentane bran acid dibutyl maleate Ethyl Lactate Propylene between bromine bromine bromine between aniline o-anisidine o-fluorophenol difluorobenzonitrile to aminobenzaldehyde Bromotoluene aniline on Bromobenzaldehyde Bromotoluene acid) and other relevant units have been in substantial promotion, and client set up a good relationship of cooperation has been the user's praise.
现主要产品:HH—01杀菌剂 HH—02有机分散剂HH—03阳离子淀粉 HH—04木署阳离子淀粉 HH—05 经纱上浆变性淀粉同时还代理销售德国贝克化学公司系列产品主要产品消泡剂:E640 、T50 表面施胶剂:A281、A288 、K532,农药/医药/兽药中间体多种产品(对溴苯酚对溴甲苯溴仿 1-溴庚烷柠檬酸三乙酯 1,2,3-三溴丙烷 3-氯-4-氟溴苯对溴乙苯 4-溴-2-氯苯胺溴乙酸乙酯 2-溴-5-氯甲苯 3-溴丙酸甲酯 1,6-二溴己烷 1-溴-4-硝基苯邻甲氧基苯甲醛溴乙酸丙酯对氟甲苯溴代十二烷对碘甲苯四溴乙烷溴代叔丁烷柠檬酸三丁酯 2-溴氯苯间羟基苯甲醛溴丁烷 2-溴丙酸黎芦醛溴已烷间溴三氟甲苯对溴苯腈对溴乙苯邻溴甲苯溴代环已烷溴代环戊烷糠溴酸马来酸二丁酯溴丙烯乳酸乙酯间溴苯胺间溴苯甲醚邻氟苯酚邻氟苯腈对氨基苯甲醛对溴苯胺对溴苯甲醛对溴苯甲酸)等在相关单位得到了大量推广,与客户建立了良好的合作关系,得到了用户的赞誉。
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They have close relationship as the former may provide new ideas and approaches for the later, while the later may be the simulation for the former and gives it helps in degradation products identification and mechanism explanation. It is necessary to choose a suitable system, which has high potential of treating EDs and close relationship to the natural environment, to combine the researches in the two aspects. Our group has been engaged in researches on the photochemical properties and application to water pollution control of different ferric species including Fe -OH complexes, Fe -polycarboxylate complexes, Ferric oxides and Fe -humic acid complexes. Fe -oxalate complexes system has higher efficiency than the other ferric species systems in photooxidation and degradation of organic compounds. This thesis is focused on the photodegradation of nine EDs estradiol (E2), estrone (E1), 17α-ethynyl estradiol (EE2), diethylstilbestrol , bisphenol-A , 4-Nonylphenol , 4-Octylphenol , di-n-butyl phthalate , and di (2-ethylhexyl) phthalate .
因此从处理效率和环境化学意义两方面考虑,结合本课题组在不同铁形态(包括Fe-OH配合物、Fe-多羧酸配合物、Fe氧化物、Fe-腐殖酸配合物等)的光化学特性及其在水污染控制中的应用方面较系统的研究工作基础,本论文选择了四类共9种典型的内分泌干扰物(雌二醇(E2)、雌酮(E1)、17α-乙炔基雌二醇(EE2)己雌酚、双酚A、壬基酚、辛基酚、酞酸二丁酯和酞酸二乙基己基酯),研究了它们在Fe-草酸盐配合物体系中的光降解效果,推测其降解机理,探索环境内分泌干扰物光氧化处理的新体系,同时为预测其在环境中的光降解行为提供了依据。
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Therelationship of the amount of catalyst and the ee% of product was seen to be negative nonlin-ear. Catalyst 3 was used in the enantioselective addition of diethylzinc to aromatic aldehydesand gave good results. The configuration of products was determined by the configuration ofthe catalysts' chiral carbon linked with hydroxy group. Using β- amino alcohols bearing only one chiral center as catalysts for the enantiose-lective addition were studied. D-N, N-dialkyl-2-amino butanol gave poor catalytic effect be-cause of their structure. The configuration of the product is the same as the catalyst. Anotherkind of β- amino alcohols - phenylglycine derivatives and valine derivatives have chiralcenter on the carbon linked with amino group. Catalyzed by-phenylglycine derivatives 6,7, 9, 10, the reactions gave satisfied results. The optical yields exceeded 80%.
在探讨了含有两个手性中心的β-氨基醇之后,选择了只有一个手性中心的β-氨基醇,一是手性中心为连羟基的手性碳原子:D-N,N-二烷基-2-氨基丁醇;二是手性中心为连氨基的手性碳原子:D-苯基甘氨酸衍生物和L-缬氨酸衍生物。D-2-氨基丁醇的催化效果不太好,这与其结构的空间位阻较小有关系,反应产物与连羟基手性碳构型一致;由苯基甘氨酸和缬氨酸出发合成五种β-氨基醇6-10,研究了不同ee%的-6作用下的二乙基锌-苯甲醛加成反应,发现该催化剂具有不对称放大效应;-7,9,lO的催化效果也比较令人满意,光学产率80%以上,所得产物构型与催化剂构型一致。
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The invention relates to a preparation process for synthesizing polyethylene terephthalate 1, 3- terephthalate catalyst, which comprises adding titanic acid ester, germanium compounds and cobalt compound into liquid dispersed phase of organic solution, wherein the total weight concentration is 4-10%, and preparing the catalyst through mechanical stirring or ultrasonic wave mixed ligand for 10-60 minutes in 0-120 DEG C, wherein the adding content of titanic acid ester, germanium compounds and cobalt compound are respectively 200-500ppm, 50-300ppm and 100-400ppm of reaction monomer mass of terephthalic acid or dimethyl terephthalate.
本发明涉及一种合成聚对苯二甲酸1,3-丙二醇酯催化剂的制备方法,将钛酸酯、锗化合物和钴化合物加入到有机溶剂的液体分散相中,总重量浓度为4~10%,在0-120℃通过机械搅拌或超声波混配10-60min制得;钛酸酯、锗化合物和钴化合物加入量分别是对苯二甲酸或对苯二甲酸二甲酯反应单体质量的200-500ppm、50-300ppm、100-400ppm;用此催化剂制备PTT产品,酯化和缩聚反应时间相对于单独使用钛酸四丁酯缩短了30-60min,产品特性粘数0.70-1.05dL/g,色相b值在2-6之间,切片可用于加工新型合成纤维及工程塑料产品。
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The experimental results show that using the feed technique of "starved state" can raise the conversion ratio of monomers, shorten the reactive time and get polymers with much more even distribution of molecular weight; the technique of adding azobisisobutyronitrile as an initiator first and then benzoperoxide as another initiator at later Stage of experiment can get higher initiating efficiency than using one initiator only.
结果表明:采用&饥饿态&聚合工艺可提高单体转化率,缩短反应时间,且所得到聚合物相对分子质量分布均匀;选用偶氮二异丁腈和过氧化笨甲酰两种引发剂进行复配,比选用单一引发剂的引发效果好;选用酯酸丁酯、正丁醇和丙二醇甲醚丙酸酯作混合溶剂,当配比为2:1:1时聚合体系稳定,聚合物的固体质量分数可达70%,且粘度适中。
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Our company supply raw materials and related intermediates as follows: Second dibutyryl cAMP calcium, voriconazole, terbinafine, vecuronium amines, cAMP, thiamphenicol, a chlorophenol hydrochloride esters, card network sodium phosphate tilmicosin, foscarnet, lornoxicam, Tilmicosin, Cephalosporium aspirin acid, ceftiofur hydrochloride, ceftiofur sodium, Ozagrel, ondansetron hydrochloride ketones, hydroxyurea, ticarcillin sodium, telmisartan, esmolol hydrochloride, hydrochloric acid Daguan Nikkomycin, adefovir dipivoxil, buflomedil hydrochloride, granisetron hydrochloride, warfarin sodium,-methyl gabexate acid, nicergoline, pantoprazole sodium,·, tegafur, cefepime hydrochloride, vecuronium bromide, hydrochloric acid meclofenoxate, sertraline hydrochloride, Cefonicid amine salt, aztreonam, ticarcillin, cefdinir, cefodizime sodium, sodium ferulate, colloidal pectin secretion, 2,3 - cyclopentene and pyridine, Piperacillin acid, cefetamet US-acid, hydrochloride Cefmenoxime ,3-TZ, 2 - deoxy-D-glucose, two-amidine urea benzene, sodium Cefonicid, Cefonicid intermediates, ester Cefamandole sodium, Cefalotin acid, intermediates cefpirome, cefepime sulphate, cefepime intermediate nucleus of cefepime, cefpirome nucleus, Cefamandole sodium, ceftriaxone new active ester, oxaliplatin, cyclophosphamide vary gland amines, polyene match him.
我公司供应的原料药及相关中间体为:二丁酰环磷腺苷钙、伏立康唑、盐酸特比萘芬、维库溴胺、环磷腺苷、甲砜霉素、盐酸甲氯酚酯、卡络磺钠、磷酸替米考星、膦甲酸钠、氯诺昔康、替米考星、头孢匹胺酸、头孢噻呋盐酸盐、头孢噻呋钠、奥扎格雷、盐酸恩丹西酮、羟基脲、替卡西林钠、替米沙坦、盐酸艾司洛尔、盐酸大观霉素、阿德福韦酯、盐酸丁咯地尔、盐酸格拉司琼、华法林钠、甲磺酸加贝酯、尼麦角林、泮托拉唑钠、普拉洛芬、替加氟、盐酸头孢吡肟、维库溴铵、盐酸甲氯芬酯、盐酸舍曲林、头孢尼西胺盐、氨曲南、替卡西林、头孢地尼、头孢地嗪钠、阿魏酸钠、胶体果胶泌、2,3-环戊烯并吡啶、哌拉西林酸、头孢他美酸、头孢甲肟盐酸盐、3-TZ、2-脱氧-D-葡萄糖、双脒苯脲、头孢尼西钠、头孢尼西中间体、头孢孟多酯钠、头孢噻吩酸、头孢匹罗中间体、头孢吡肟硫酸盐、头孢吡肟中间体、头孢吡肟母核、头孢匹罗母核、头孢孟多钠、头孢曲松新型活性酯、奥沙利铂、异环磷腺胺,多烯他赛。
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SM6 and SM7 of uncrystal were analyzed through GC-MS, the results showedthat SM6 main contained unsaturated fatty aldehyde with fragrance, i.e.-2,4-decadienal(58%), tetradecanoic acid (55.78%), 2-decenal(50%), Phthalic acid isobutylundecyl ester(47%), 2, 4-Decadienal(41%), 2-Undecenal (31%), 2-Methyl-Z,Z-3, 13-octadecadi-enol(18.84%), and SM7 contained saturation alkanes, i.e. 1, 2-Benzenedicarboxylic acid, butyl cyclohexyl ester(23.90%), Triacontane(22.63%),Nonacosane(21.04%), Heptadecane(18.84%), Octacosane(13.58%). Toxicological experiments were done to insure the pigment safety.
并对紫红丝膜菌色素非晶体部分的黄色油状物SM6和紫色粉末物SM7作了GC-MS分析,结果显示SM6中主要为具有香气成分的不饱和脂肪醛,其中含量较高的依次为:-2,4-癸二烯醛(58%)、十四烷酸(55.78%)、2-癸烯醛(50%)、邻苯二甲酸异丁基十一烷酯(47%)、2,4-癸二烯(41%)、2-十一碳烯醛(31%)、2-甲基-Z,Z-3,13-十八碳二烯酸(18.45%)等;SM7中主要为饱和直链烷烃,其中含量较高的依次为:1,2-苯二羧酸丁基环己酯(23.90%)、三十烷(22.63%)、二十九烷(21.04%)、十七烷(18.84%)、二十八烷(13.58%)。
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Results: Nine compounds were obtained from the ethyl acetate fraction of C. speciosa and were identified as methyl chlorogenate, 5-O-cafeoyl quinic acid butyl ester, quinic acid butyl ester, 5-hydroxymethyl-furan-2-carbaldehyde, triacontanoic acid,-epicatichin, 7,8-dihydroxy-coumanrin, protocatechuic acid ethyl ester, and protocatechuic acid.
结果:从皱皮木瓜的乙酸乙酯萃取部位分离鉴定了9种化合物,分别为绿原酸甲酯,5-O-咖啡酰基-奎宁酸丁酯,奎宁酸丁酯,5-羟甲基-2-糠醛,三十烷酸,-表儿茶素,7,8-二羟基香豆素,3,4-二羟基苯甲酸乙酯,原儿茶酸。
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Results The mixing, loading and storing processes of the construction, might generate lots of occupational hazards, including toluene, dimethylbenzene, trimethylbenzene, isopropanol, butyl alcohol, propanol, methyl methacrylate, butyl acetate, methyl isobutyl ketone, methyl ethyl ketone, acetic ether, nitro-cotton, n-hexane, n-heptane, carbinol, ethanol, ethyl propionate, diisobutyl ketone, glycol ether, isoamyl acetate, 2,4-toluene diisocyanate, isophorone, noise, power frequency electric fields.
结果 该项目在混兑生产和装卸、仓储过程中,可能产生的职业病危害因素主要有甲苯、二甲苯、三甲苯、异丙醇、丁醇、丙醇、甲基丙烯酸甲酯、乙酸丁酯、甲基异丁基甲酮、丁酮、乙酸乙酯、硝化棉、正己烷、正庚烷、甲醇、乙醇、乙酸丙酯、二异丁基甲酮、乙二醇乙醚、乙酸异戊酯、2,4甲苯二异氰酸酯、异佛尔酮、噪声、工频电场。
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A four-ball tester was used to evaluate the load carrying and antiwear properties of bismuth dibutyldithiocarbamate,bis-dibutyldithiocarbamates(V7723),sulfurized isobutylene,molybdenum ester non sulfur and phosphorus in a mineral oil respectively and their synergistic effects.
利用四球试验机评价了二丁基二硫代氨基甲酸铋与二丁基二硫代氨基甲酸酯(V7723)、硫化异丁烯和非硫磷钼酸酯添加剂的极压和抗磨性能,以及它们之间的极压和抗磨协同作用。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。