对苯二甲酸

词组短语

terephthalic acid · p-phthalic acid

与对苯二甲酸相关的网络例句 [注：此内容来源于网络，仅供参考]

Research and application of treating waste water with carbinol by biochemical method ;2. Biochemical method and Fe-C method were used for the treatment of terephthalic acid wastewater.

采用生化法和铁碳法进行对苯二甲酸废水的处理研究，结果得出：CODCr=2000mg/L是微生物降解对苯二甲酸的抑制质量-体积分数；pH值为8～9时活性污泥处理对苯二甲酸废水比较理想；铁碳法处理对苯二甲酸废水35h后，CODCr的去除率达到了80%以上。

This design is low stretch of 30,000 tons of high-strength type polyester production workshop after preliminary design, high low stretch of polyester staple fiber dosage is in the biggest species, it is PTA or dimethyl terephthalic acid and glycol as raw materials via esterification or the ester exchange reaction and condensation of terephthalic acid polymer fibre - together into glycol, this design USES Germany JiMa process, high scientific and technological content, is a kind of high strength, good elasticity, and heat resistance, good abrasion resistance, corrosion resistant polyester.

帮忙把涤纶论文绪论翻译成英语，要求不用翻译软件，可以用软件查单词本设计是"年产30000吨高强低伸型涤纶短纤维后加工生产车间初步工艺设计"，高强低伸型涤纶短纤维是涤纶短纤维中用量最大的品种，它是以精对苯二甲酸或对苯二甲酸二甲酯和乙二醇为原料经酯化或酯交换和缩聚反应而制得的成纤高聚物——聚对苯二甲酸乙二醇酯，本设计采用德国吉玛工艺，科技含量较高，是一种强度高、弹性好、耐热性好、耐磨性好、耐腐蚀的涤纶短纤维。

The method was based on the aromatic hydroxylation of terephthalate by hydroxyl radical, produced from the homolysis of peroxynitrite in weak acid media, to yield a highly fluorescent product, 2-hydroxy-terephthalate, which was then detected fluorimetrically.

具体做法是将ONOO〓在pH 5.0的缓冲液中转化为其共轭酸ONOOH，而ONOOH本身不稳定，均裂生成·OH，·OH进攻对苯二甲酸生成强荧光产物2-羟基对苯二甲酸，利用荧光分析法测定2-羟基对苯二甲酸，从而间接确定ONOO〓的含量。

The invention relates to a process for producing polyethylene terephthalate 1, 3-propanediol, which comprises the following steps: using titanic acid ester as major catalyst, using germanium compounds and cobalt compounds as synergic catalyst, conducting esterification reaction for poly terephthalic acid and 1, 3-propanediol according to the molar 1:1.05-2.2 under the nitrogen pressure of 0.1-0.4MPa and 230-265 DEG C, or conducting ester exchanging reaction for poly terephthalic acid and 1, 3-propanediol according to the molar ratio 1:1.8-2.2 in 160-220 DEG C, decompressing reaction to high vacuum 10-150Pa, wherein the final temperature of reaction is 265-275 DEG C, recovering to normal pressure with nitrogen to obtain the PTT product.

本发明涉及一种生产聚对苯二甲酸1，3-丙二醇酯的方法，采用以钛酸酯为主催化剂，锗化合物和钴化合物为协同催化剂，对苯二甲酸二甲酯和1，3-丙二醇按摩尔1∶1.05-2.2，在0.1-0.4MPa氮气压力和230-265℃下进行酯化反应，或对苯二甲酸二甲酯和1，3-丙二醇按摩尔比1∶1.8-2.2，在160-220℃进行酯交换反应，将反应减压至高真空10-150Pa，反应终温在265-275℃，用氮气恢复到常压，得到本PTT产品；大大缩短了反应时间，直接聚合制备特性粘度在0.7-1.05dL/g的PTT切片，使反应产物色相良好，PTT产品可用于纤维加工及工程塑料领域。

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。

Tetrachloroterephthalic acid was prepared by chlorinating terephthalic acid, oleumsolvent and iodine catalyst. Tetrachloroterephthalic acid was acylated by sulphurous oxychloride in the presence of DMF to form tetrachloroterephthaloyl chloride. The acyl chloride product was fluorinated by potassium fluoride and esterified by methanol to synthesize dimethyl tetrafluoroterephthalate. The ester was reduced with potassium borohydride and lithium chloride to give tetrafluoroterephthalyl alcohol. The above product was bromated in the hydrobromic acid to obtain 4-bromomethyl-2,3,5,6-tetrafluoro-benzene methanol. 4-Methyl-2,3,5,-6-tetrafluorobenzene ethanol was obtained by reducing the bromide with magnesium. In the exist of DCC and DMAP, tefluthrin was got by the condensation reaction between 4-methyl-2,3,5,6-tetrafluoro-benzene methanol and-(1RS,3RS)- 3-(2- chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cycolpropanecar-boxylate acid.

对苯二甲酸与氯气在碘存在下以发烟硫酸为溶剂进行氯化制备四氯对苯二甲酸；再以DMF为催化剂与二氯亚砜反应生成四氯对苯二甲酰氯；以氟化钾为氟化剂，环丁砜为溶剂置换氟化，再与甲醇酯化得到四氟对苯二甲酸甲酯；以KBH4-LiCl为还原剂二甲醚为溶剂反应制得四氟对苯二甲基苄醇；以氯苯为溶剂在溴化氢溶液中溴化得到溴化产物；在乙醇溶液中经镁粉还原得到4-甲基-2，3，5，6-四氟苄醇；甲基苄醇与功夫酸在催化剂二环己基碳二亚胺和4-二甲氨基吡啶作用下缩合得到七氟菊酯，总收率达43.6%。

A HPLC method has been developed for the simultaneous determination of 4-methylbenzy- lalcohol,p-tolualdehyde,4-caboxybenzaldehyde,benzoic acid,p-toluie acid,terephthalic acid,o- phthalic acid and isophthalic acid in the residue from purification of terephthalic acid.

其残渣中含有再利用价值很高的中间产物：4一甲基苯甲醇(4一MBA)，对甲基苯甲醛(P一tolual-dehyde)，4一竣基苯甲醛(4一CBA)，苯甲酸，对甲基苯甲酸，对苯二甲酸，邻苯二甲酸，间苯二甲酸等。

The crystallization behavior of polyethylene terephthalate ; random poly (ethylene/tetramethylene terephthalate) P (ET/BT ; poly (ethylene terephthalate/ isophthalate) P (ET/EI and poly (ethylene terephthalate/adipate) P (ET/EA copolyesters; and block polyethylene terephthalate/polyethylene glycol and polyethylene terephthalate/polytetramethylene glycol were studied by DLI ; DSC; WAXD; PLM and IR technique.

本文通过缩聚反应合成了不同分子量的聚对苯二甲酸乙二酯；聚对苯二甲酸酯P(ET／BT、聚（对苯二甲酸／间苯二甲酸）乙二醇酯P(ET／EI和聚乙二醇酯P(ET／EA等系列的无规共聚酯以及PET／PBG和PET／PEG等系列的嵌段共聚酯，并采用DLI、DSC、WAXD、IR和NMR等实验技术着重研究了它们的结晶行为与共聚酯的序列结构。

The crystallization behavior of polyethylene terephthalate ; random poly (ethylene/tetramethylene terephthalate) P (ET/BT ; poly (ethylene terephthalate/ isophthalate) P (ET/EI and poly (ethylene terephthalate/adipate) P (ET/EA copolyesters; and block polyethylene terephthalate/polyethylene glycol and polyethylene terephthalate/polytetramethylene glycol were studied by DLI ; DSC; WAXD; PLM and IR technique.

中文题名PET及其共聚酯的结晶行为副题名外文题名 The crystallization behavior of PET and its copolyesters 论文作者边界导师封麟先叶胜荣教授学科专业高分子化学与物理研究领域\研究方向学位级别博士学位授予单位浙江大学学位授予日期2001 论文页码总数10，159页关键词聚对苯甲酸乙二酯聚酯结晶馆藏号BSLW /2003 /O633 /1 本文通过缩聚反应合成了不同分子量的聚对苯二甲酸乙二酯；聚对苯二甲酸酯P(ET／BT、聚（对苯二甲酸／间苯二甲酸）乙二醇酯P(ET／EI和聚乙二醇酯P(ET／EA等系列的无规共聚酯以及PET／PBG和PET／PEG等系列的嵌段共聚酯，并采用DLI、DSC、WAXD、IR和NMR等实验技术着重研究了它们的结晶行为与共聚酯的序列结构。

By utilizing three benezenemulticarboxylate derivatives (H2chdc, H2aip, NaH2sip), we obtain 12 coordination polymers. Especially, compelexes 1 and 2 are based on one-dimensional ···OHInOHIn···chains as building units, while complex 3 is based on double four-ring [In8(μ2-O)4(μ2-H2O)8]16+, complex 4 is based on trinuclear In3(μ3-O)(CO2)6, complexes 11 and 12 are both based on nested bistranded helices.

选择了三类取代苯羧酸配体： 2，5-二羟基-1，4-对苯二甲酸(2，5-H2chdc)； 5-氨基间苯二甲酸(5-H2aip)； 5-磺酸基间苯二甲酸钠盐(5-NaH2sip)和InCl3反应合成了十二个配位化合物：其中1、2以···OHInOHIn···链为构筑单元， 3以双四元环[In8(μ2-O)4(μ2-H2O)8]16+为构筑单元，4以棱柱状三核铟In3(μ3-O)(CO2)6为构筑单元，而11、12以嵌套的双股螺旋链为构筑单元。

与对苯二甲酸相关的网络解释 [注：此内容来源于网络，仅供参考]

pet：聚对苯二甲酸乙二酯

请选择订购方式:(1005275-0118-0002) 聚对苯二甲酸乙二酯(PET)的固相连续聚合的反应器和方法[技术摘要] 本发明提供了一种用来提高低分子量PET预聚物流的特性粘度(I.V.)的聚对苯二甲酸乙二酯(PET)的固相连续聚合的反应器和方法,

PTA：精对苯二甲酸

PTA)">对苯二甲酸(PTA) 江苏宜兴市 7800.00/吨 0吨 查看详情PTA)">精对苯二甲酸(PTA) 江苏南京市白下区 7400.00/吨 0吨 查看详情PTA)精对苯二甲酸">(PTA)精对苯二甲酸 江苏宜兴市 7000.00/吨 0吨 查看详情PTA)">工业用精

dimethyl terephthalate：对苯二甲酸二甲酯

dimethyl sulfoxide 二甲亚砜 | dimethyl terephthalate 对苯二甲酸二甲酯 | dimethyl 二甲基;乙烷

dimethyl terephthalate：二甲基对酞酸盐(对苯二甲酸盐脂)

Dimethyl phthalate 二甲基酞酸盐 A D D B D | Dimethyl terephthalate 二甲基对酞酸盐(对苯二甲酸盐脂) A D D B D | Dintro chlorobenzene 二硝基氯苯 A D D A D

polybutylene terephthalate：聚对苯二甲酸丁二醇酯

聚对苯二甲酸丁二醇酯(PBT): 一、聚对苯二甲酸丁二醇酯(PBT)的概述 聚对苯二甲酸丁二醇酯(Polybutylene terephthalate),又名聚对苯二甲酸四次甲基酯. 简称PBT. 它是对苯二甲酸与1,4-丁二醇的缩聚物...

polybutylene terephthalate：聚对苯二甲酸丁二酯

polybutylene terephthalate 聚对苯二甲酸丁二醇酯 | polybutylene terephthalate 聚对苯二甲酸丁二酯 | polybutylene 聚丁烯

dioctadecyl terephthalate：对苯二甲酸双酯

dioctadecyl adipate 己二酸双酯 | dioctadecyl terephthalate 对苯二甲酸双酯 | dioctyl phthalate 邻苯二甲酸二辛酯

terephthalic acid：对苯二甲酸,对 酸

terephthaldehyde polymers 对苯二甲酸 聚体 | terephthalic acid 对苯二甲酸,对 酸 | terephthalic acid polymers 对苯二甲酸聚体

purified terephthalic acid：纯对苯二甲酸

对苯二甲酸(terphthalic acid或1,4-benzenedicar boxylic acid,即 TA),而 PTA则是纯对苯二甲酸(purified terephthalic acid)的简称,分子式为C8H6O4,结构式为初期生产的对苯二甲酸由于纯度低,不能用于直接酯化法生产纤维级聚酯,

terephthalic acid polymers：对苯二甲酸聚体

terephthalic acid 对苯二甲酸,对 酸 | terephthalic acid polymers 对苯二甲酸聚体 | terephthaloyl chloride 氯化对苯二甲醯