查询词典 methylal

Is located in the National Health City, National Garden City,"China's first long" hometown - Puyang, located in Puyang City, South County, Technology and Industry for the region is a professional Health and formaldehyde, methylal new series of products, one of the major manufacturers.

濮阳市南乐县森威化工有限公司位于国家卫生城、国家园林城、"中华第一龙"的故乡—濮阳，坐落在濮阳市南乐县技术工业区内，是国内专业生甲醛、新型甲缩醛等系列产品的主要生产厂家之一。

A continuous detecting temperature procedure was used to measure the apparent kinetics data of methylal synthesis reaction inside the original catalyst particle with various diameters.

采用连续测温法，测定不同粒径颗粒催化剂上甲缩醛合成反应的宏观动力学数据，估计了各组份的有效扩散系数，以用于催化剂有效因子的计算。

The influences of preparation method, the calcined temperature and auxiliary forming reagent on the activity of the Fe Mo Co O catalyst for oxidation of methylal to formaldehyde were studied.

考察了制备方法、焙烧温度和成型助剂对甲缩醛氧化制甲醛铁钼钴三元催化剂活性的影响。

The possibility of preparation of methylal from methanol and formaldehyde through slurry catalytic distillation catalyzed by acidic cation exchange resin with large size pores is discussed.

研究了以甲醇和甲醛为原料，以大孔径强酸性阳离子交换树脂为催化剂，通过浆料催化精馏工艺制备甲缩醛的可行性。

The company is committed to the wholesale, retail chemical products, including: industrial toluene, xylene, white oil methanol, ethyl, n-butyl, C ketone, butanone, anti-Whitewater, cyclohexanone, etc. methylal more than 40 kinds of products, the average monthly sales volume over 4000 tons.

本公司主要致力于批发，零售化工产品，包括：工业用甲苯，二甲苯，白电油甲醇，乙酯，丁酯，丙酮，丁酮，防白水，环已酮，甲缩醛等40多种产品，平均月销量达4000多吨。

Over a solid acid catalyst, the reaction in which methanol and formaldehyde are condensed into mathylal is reversible. This reaction tends to be completion by reactive distillation and the high-purity methylal product can be obtained.

在固体酸催化剂作用下，由甲醇、甲醛缩合生成甲缩醛，该反应为可逆反应，采用催化精馏技术可使反应趋于完全，并得到高纯度甲缩醛产品。

The invention discloses a method for synthesizing acetyl tributyl citrate, which uses tributyl citrate and acetic anhydride as reaction articles, uses naphthalenesulfonic acid methylal as the catalyst during the ester synthesis process, filtering the catalyst from reacted articles after reaction, water-washing, alkaline-washing, distilling the filtrate to obatin acetyl tributyl citrate.

本发明公开了一种合成乙酰柠檬酸三丁酯的方法，它以柠檬酸三丁酯、乙酸酐为反应物，在酯合成过程中用萘磺酸甲缩醛作催化剂，反应结束后，将催化剂从反应后的物料中过滤出来，滤液经水洗、碱洗、蒸馏获得乙酰柠檬酸三丁酯。

Jiangmen City, Czech Run Chemical Trading Co., Ltd. operating chemical raw materials, mainly toluene, xylene, a rough, crude dimethyl, mixed aromatics, mesitylene, crude Sanjia, mixed dimethoxy, methylal, n-butyl, B ester, n-butyl alcohol, isobutyl alcohol, vinyl acetate, styrene, butyl ether, cyclohexanone, 6 #, 120 #, 200 #, titanium dioxide, phthalic anhydride, DOP, isopropanol for Main Product, Quality Assurance , the price advantage of abundant supply.

江门市捷润化工贸易有限公司经营化工原料，主要为甲苯、二甲苯、粗甲、粗二甲、混合芳烃、三甲苯、粗三甲、混二甲、甲缩醛、正丁酯、乙酯、正丁醇、异丁醇、醋酸乙烯、苯乙烯、丁醚、环己酮、6#、120#、200#、钛白粉、苯酐、DOP、异丙醇为主营产品，质量保证，价格优势，货源充足。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐