一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List Butylated hydroxytoluene (BHT)
128-37-0

Butylated hydroxytoluene (BHT) synthesis

10synthesis methods
BHT is produced commercially by the alkylation of para-cresol with isobutylene. BHT is also produced by several western European manufacturers, production/processing plants in Germany, France, the Netherlands, United Kingdom and Spain.
-

Yield:128-37-0 215.16 g

Reaction Conditions:

with hydrogen;platinum at 160; for 4 h;Reagent/catalyst;Temperature;

Steps:

1

Add 2.6 g of platinum catalyst to a 1 L reactorAnd 260 g of 2,6-di-tert-butyl-4(dimethylaminomethyl)phenol,Then hydrogen is introduced, and the hydrogenolysis process maintains the system temperature at 160 ° C.The molar ratio of hydrogen to 2,6-di-tert-butyl-4(dimethylaminomethyl)phenol is 2:1,Hydrogenation reaction for 4 hours, hot filtration to remove the catalyst,The crystal was cooled to give 215.16 g of 2,6-di-tert-butyl-p-methylphenol.

References:

CN108250047,2018,A Location in patent:Paragraph 0029; 0031; 0034; 0037

Butylated hydroxytoluene (BHT) Related Search:

辉南县| 云阳县| 上杭县| 玛多县| 汾阳市| 孝昌县| 蒙城县| 泰顺县| 鄢陵县| 温宿县| 阿巴嘎旗| 琼中| 南开区| 伊通| 闽侯县| 乐都县| 望都县| 乌兰浩特市| 沅陵县| 潞城市| 吕梁市| 宁强县| 台江县| 武陟县| 二手房| 吉木萨尔县| 岢岚县| 巧家县| 祁阳县| 义乌市| 清苑县| 云阳县| 临猗县| 乌拉特中旗| 长岛县| 长岭县| 永福县| 南郑县| 富锦市| 通城县| 富平县|