Polytetrahydrofuran ( PTHF ) with narrow molecular mass distribution was prepared by cationic ring-opening polymerization of tetrahydrofuran using H_2SO_4 · SO_3-HClO_4 system as a catalyst .

以发烟硫酸-高氯酸为催化剂，通过 四氢呋喃的阳离子开环聚合合成了窄分子量分布的聚四氢呋喃（PTHF）。

Separation of methanol tetrahydrofuran water system by extractive distillation and phase separation with salt has been studied .

研究了萃取精馏技术和加盐分相技术在甲醇 四氢呋喃水体系分离中的应用。

The dynamic adsorption model that described the characteristics of small amount of water from tetrahydrofuran on4A molecular sieve was developed .

建立了合适的吸附动态模型，用于分析 四氢呋喃中的微量水在4A分子筛上动态吸附特性。

The results showed that tetrahydrofuran was a better cosolvent and the waste edible oils containing abundant free fatty acids was liable to form miscible system .

结果表明， 四氢呋喃是良好的共溶剂，游离脂肪酸含量高的废食用油有利于共溶体系的形成。

The process flow was designed and experimentally studied for separation of acetone tetrahydrofuran ( THF ) triethylamine and water mixture .

对丙酮、 氢 呋喃、乙胺、混合物的分离进行了工艺流程设计和实验研究。

Synthesis of Indapamide and the Adsorption of Tetrahydrofuran + Water Solution Mixture on Molecular Sieve

吲哒帕胺的合成以及 四氢呋喃 &水体系在分子筛上的吸附研究

Tetrahydrofuran is highly flammable and may contribute to the release of toxic gases and vapors during a fire according to the federal Occupational Safety and Health Administration .

美国职业安全与保健管理局介绍说， 四氢呋喃是一种易燃物质，发生火灾时它有可能导致一些有毒气体挥发。

The synthesis of polyoxytetramethylene glycol ( PTMG ) from tetrahydrofuran was investigated using fuming sulfuric acid as catalyst .

本工作以 四氢呋喃为原料、发烟硫酸为催化剂合成了聚四甲撑二醇（PTMG）。

Study of chain transfer to acetic anhydride in the polymerization of tetrahydrofuran

四氢呋喃在 苯中聚合向醋酸酐链转移的研究

Influence of 5A-Type Zeolite Powder on Tetrahydrofuran Hydrate Formation and Dissociation Process

5A分子筛粉末对 四氢呋喃水合物的生成及分解过程的影响

The azeotropic temperature of tetrahydrofuran ( THF ) and water changes with the pressure based on this characteristic a purification process of pressurized column and atmospheric column was established .

利用 四氢呋喃（THF）溶液的共沸点随压力改变的特性，提出加压塔-常压塔双塔提纯工艺。

A method of synthesizing chlorodiisopropylphosphine in which the raw are magnesium isopropyl chlorides and phosphorus trichloride the solvent is tetrahydrofuran is introduced in this paper .

介绍了以镁、氯代异丙烷和三氯化膦为主要原料， 四氢呋喃为溶剂合成氯代二异丙基膦的方法。

Study on the In-situ Hydrogenation of Maleic Anhydride to Tetrahydrofuran Using Solvent Hydrogen from Ethanol Reforming

乙醇重整制氢对马来酸酐原位加氢 制 备 四氢呋喃的研究

Antisymmetric nonresonant vibrational Raman scattering of Tetrahydrofuran ( THF ) is experimentally and theoretically studied in this paper .

研究了 四氢呋喃（THF）非共振拉曼光谱中反对称散射的贡献。

Rapid Determination of Tetrahydrofuran in Air through Pre-adsorption-gas Chromatography with Active Carbon as a Sorbent

活性炭预吸附-气相色谱法快速测定空气中的 四氢呋喃

Tetrahydrofuran polymerization catalyzed by organic-inorganic hybrid clay

有机-无机杂化黏土催化 四氢呋喃聚合

We obtained one-dimensional fullerene nanoribbons and nanotubes in tetrahydrofuran and water mixed solvent .

在不同比例的 四氢呋喃和水混合溶剂体系中获得了含C60杂化大分子的纳米带和纳米管。

Coal pitch is extracted with tetrahydrofuran to obtain tetrahydrofuran soluble ( THFS ) and tetrahydrofuran insoluble ( THFI ) .

煤沥青用 四氢呋喃萃取分离得到四氢呋喃可溶物（THFS）和四氢呋喃不溶物（THFI）。

Effects of Potassium Acetate and Calcium Chloride on Vapor Liquid Equilibrium for the Tetrahydrofuran Ethanol System

乙酸钾及氯化钙对 四氢呋喃 &乙醇体系汽液平衡的效应

Li2O-B2O3 composite gels were successfully prepared from tri-n-butyl borate and lithium methoxide dissolved in methanol and tetrahydrofuran via sol-gel technique .

以硼酸三正丁酯、甲醇锂为主要原料，甲醇和 四氢呋喃为 溶剂，利用溶胶-凝胶法通过优化工艺制备了掺锂硼酸盐凝胶。

It is used in the manufacture of pesticides phenol furfural resins and tetrahydrofuran .

以它为 原料可 再加工成树脂， 合成 纤维， 合成 橡胶， 合成 香料，西药，农药等。

Simulation and Optimization for Tetrahydrofuran Recovery System from Pharmaceutical Discard Solution

制药废液中 四氢呋喃回收系统的模拟与优化

Furfural is also used as a chemical intermediate in the production of the solvents furan and tetrahydrofuran .

在合成树脂生产中可以用来生产呋喃树脂 、糠醛树脂、 糠醇树脂等；

Polyether rubber impression material is a irreversible elastic impression material which is composed of tetrahydrofuran and ethylene oxide .

聚醚橡胶印模材料是弹性不可逆印模材料，主要由 四氢呋喃和氧化乙烯 共聚构成的聚醚 橡胶所组成。

Study on pretreatment of tetrahydrofuran wastewater by ferric-carbon micro-electrolysis

曝气催化铁炭微电解预处理 THF废水的实验研究

The catalysis of big pore strong acid resin for 1 dehydration to tetrahydrofuran is investigated .

考察了大孔强酸性树脂对1丁二醇脱水 制 四氢呋喃的催化作用。

Tetrahydrofuran is used as a commercial solvent and is converted in starting materials for the preparation of nylon .

同时也是 呋喃、顺酐、糠 酸等重要有机原料，在石油 炼制 、 造纸工业等 部门有着广泛的用途。

Study on tetrahydrofuran ring-opening polymerization initiated by low-concentration heteropolyacid

低浓度杂多酸引发 四氢呋喃开环聚合的研究

Tetrahydrofuran was synthesised by dehydration of 1 using p-toluene sulphonic acid supported on active carbon as catalyst .

以活性炭负载对甲苯磺酸作催化剂，对1丁二醇脱水剂制备 四氢呋喃的反应进行研究。

Removal alcohol from crude tetrahydrofuran formation principle of peroxidate and antioxidation technique were introduced .

介绍了粗 品 四氢呋喃的除醇技术，过氧化物的生成机理与抗氧化技术。