丙二醇

A gas chromatographic analysis method was established in the study of the conversion of acrolein to 1,3-propanediol by hydration and hydrogenation.

建立丙烯醛水合加氢制1，3-丙二醇的气相色谱定性定量分析方法。

He minim acidity in TS-1 can catalyze the solvolysis reaction of PO to propylene glycol, 1-methoxy-2-propanol and 2-methoxy-1-propanol.

S-1中含有的微量酸中心能够导致环氧丙烷与溶剂反应生成丙二醇、1-甲氧基-2-丙醇和2-甲氧基-1-丙醇。

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。

We researched the high molecular polyether,polyamide hot melt adhesive, 2-phenoxy ethanol phenyl cellosolve,propylene glycol phenylate,etc,which have passed appraisal of the provincial science and technology achievement.the company gains higher economy profit after putting into production.

公司设有专业科研机构从事新产品的开发研制工作。先后研制开发成高分子聚醚，聚酰胺热熔胶，乙二醇苯醚，丙二醇苯醚等十多项新产品，均通过省级科技成果鉴定。

The main products are: iodine, alginates, mannitol, sorbitol, alginic acid, seaseed fertilizer, marine feedstuff and propylene glycol alginate.

主要产品有碘、海藻酸盐、甘露醇、山梨醇、海藻酸、海藻肥、海藻饲料、藻酸丙二醇酯。

Characteristics: According to the principle of forming acnes and furuncles, the product which contains oil-controlling genes, can quickly remove the bacteria on the surface of furuncles and get rid of remaining oil and dirt by soaking into the skin deeply.

主要成份：鲸蜡醇、硬脂醇、对羟基苯甲酯丙二醇、对羟基苯甲酸丁酯等。产品特性：针对痤疮、暗疮的形成原理，采用控油因子，迅速清除痤疮表面细菌，并渗透至肌肤深层，排出残余油脂和污物。

Company development and production of ethylene glycol phenyl ether and its acetate, propylene glycol phenyl ether and its acetate, low-foam wetting dispersant, silane coupling agent, solubilizer, emulsifier, such as series of many products, domestic innovative products, quality has been well-known shoulder to shoulder similar foreign products.

公司研制生产的乙二醇苯醚及其醋酸酯、丙二醇苯醚及其醋酸酯、低泡润湿分散剂、硅烷偶联剂、增溶剂、乳化剂等系列的许多产品，为国内独创产品，品质优良，已比肩国外同类知名产品。

Bottle Ingredients: Purified water, Thayers proprietary Witch Hazel Extract, natural Lavender fragrance, natural Lavender water, Aloe Vera, Vitamin E Acetate, Methylparaben, Polysorbate 20 (a natural emulsifier derived from coconut oil), Propylene glycol (food grade, natural humectant used to attract moisture).

成分：纯净水，Thayers独有的金缕梅提取物，天然熏衣草香气，天然熏衣草花水，芦荟，VE醋酸，丁二醇，Polysorbate 20，丙二醇。这个官网没图！！但是我好像在莱迪下面看到过，南京的mm可以去看看。在莱迪靠地铁的那边往里走，第一家化妆品小店，有超市出口处的那种检测物品的金属栏。

Alcohol-Free Moisturies Hydrates Cleanies Size: 11.5 oz Bottle Ingredients: Purified water, Thayers' proprietary Witch Hazel Extract, Witch Hazel Fragrance, Grapefruit Seed Extract, Grapefruit Extract, Aloe Vera, Methylparaben (a natural, gentle yet safe preservative), Polysorbate 20 (emulsifier derived from coconut oil), Propylene Glycol (a natural humectant used to attract moisture).

不含酒精的保湿清洁用品。成分：纯净水，Thayers混合了金缕梅提取物，金缕梅香气，柚子种子提取物，柚子提取物，芦荟，丁二醇，Polysorbate 20，丙二醇（一种天然的保湿剂，用于吸引水气

Main products include alginic acid and its salts, mannitol, sorbitol, iodine, PGA, seaweed fertilizer, seaweed fodder etc.

主要产品有海藻酸盐，甘露醇，山梨醇，碘，藻酸丙二醇酯，海藻肥，海藻饲料等

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。