raw catalyst

A phospho molybdic acid catalyst was investigated for the esterification of fumaric acid with methanol in this paper. The influences of raw material ratio, reaction time and amount of catalyst used on the yield of DMF were investigated.

研究了以磷钼酸为催化剂，富马酸和甲醇为原料合成富马酸二甲酯（DMF），探讨了酸醇量比、反应时间、催化剂用量等工艺参数对DMF收率的影响。

Terpene phenol resin can be produced from phenol and industrial grade a-pinene in the presence of HCI as catalyst. The yield of the resin is as high as 90~ 98% on the basis of the raw materials.

本文叙述了苯酚和工业α-蒎烯为原料，应用盐酸为催化剂生产萜烯酚树脂，产率相对于原料为90～98%。

Using tendo-tetrahydrodicyclopentadiene as raw material and AlCl _ 3-trace water system as catalyst, adamantane was synthesized by two steps.

以AlC l3微量水的催化体系研究了桥式四氢双环戊二烯通过两步法反应合成金刚烷.

To optimize the reaction conditions, temperature, ratio of raw materials, reaction solvent, catalyst and other factors were investigated.

并对合成路线中刘卡特反应的反应温度、物料配比、反应溶剂、反应催化剂等因素进行了考察，优化了反应条件。

The microwave and fast-food chains were the biggest catalyst, but the big food companies — which want to sell anything except the raw ingredients that go into cooking — made the home cook an endangered species.

微波炉和快餐连锁店是罪魁祸首，但是大型食品公司才是使家庭厨师成为濒危物种的幕后黑手——它们想尽办法出售商品，却偏偏不卖新鲜食材。

Cetyl phthalate was prepared from anhydride and cetyl alcohol as raw materials catalyzed by non-acid catalyst.

以苯酐与十六醇为原料,选用 非 酸催化剂,在实验室合成了增塑剂邻苯二甲酸双十六烷基酯.

Using phenylamine and acetic acid as raw materials, cyclohexane and toluene-p-acid as dehydration and catalyst respectively.

以苯胺和冰醋酸为原料, 环己烷为脱水剂,对 甲苯 磺酸为催化剂,采用正交实验法,探讨了乙酰苯胺合成的适宜工艺条件.

The new preparation process of tetrabromobisphenol-A with bisphenol-A 、 bromine and hydrogen peroxide as raw materials by a heterogeneous catalyst reaction has been introduced in this paper.

以双酚A、溴水和过氧化氢为原料，采用非均相催化反应技术合成四溴双酚A的新工艺。

Using sodium cinnamate and benzyl chloride as raw material, diethylamine as catalyst, benzyl cinnamate is synthesized directly under normal pressure and microwave irradiation. The effects of amount of catalyst, power and time of microwave irradiation on yield are studied.

以肉桂酸钠和氯化苄为原料，二乙胺作催化剂，采用微波辐射技术，在常压下直接合成肉桂酸苄酯，考查了催化剂用量、微波辐射功率和辐射时间对酯产率的影响。

Using furfural as the raw material with KClO_3 as the oxidant the V_2O_5 as the catalyst to prepare fumaric acid. Synthesis of dimethyl fumarate by esterification reaction of fumaric acid with methanol catalyzed by heterogeneous supported heteropoly acid PW_ ( 12)/ C.

研究了以糠醛为原料，以KClO3为氧化剂，V2O5为催化剂制备富马酸，在固载杂多酸PW12/C催化下，富马酸和甲醇经过酯化反应合成富马酸二甲酯。