神吗午夜8888_九一九色熟妇_不神马久久_色久综合在线_麻豆国产一区_高清无码肏屄网站免费播放_爱豆传媒 蘑菇传媒 欧美 日韩_激情婷婷亚洲天堂_精品人妻一区二区三区乱码_亚洲喷水射无_在线免费观看国产_午夜一区二区不卡_囯产精品一区二区三区线羞羞网站,国产成人年无码片应用,国产欧美日韩一级二级三级,色骚妇网五十路,无套内谢少妇毛片A片樱花,白洁被高振干到九点多电影叫什么,亚洲最新天堂网址,午夜福利人妻无码福利,欧洲精品久久无码一区二区,精品极品三大极久久久久,丰满少妇猛烈片免费看观看,亚洲色图 激情小说,国产成人无码网站m3u8,在线亚洲男人天堂,91精品国产91,亚洲区二区三区无码久久,天上人间网,欧美老人一级片,久久这里只有精品九九,精品人妻无码专区在中文字幕 ,人妻无码一区二区不卡无码 ,亚洲精品久久久久久动漫,爽到高潮流水喷出无码视频,人妻寂寞按摩中文字幕,免费看黄网站入口,久久久国产精品无码人妻,黄色免费毛片,国产碰免费视频,国产精品无码无卡毛片视频,国产精品午夜久久久久久,国产成人精品日本动漫电影

順酐:目前次于苯酐和醋酐的第三大酸酐，主要用于不飽和聚酯樹脂、醇酸樹脂。

Maleic anhydride: currently the third largest anhydride after phthalic anhydride and acetic anhydride, mainly used in the production of unsaturated polyester resin and alkyd resin.

另外還用于農藥、醫藥、涂料、油墨、潤滑油添加劑、造紙化學品、紡織品整理劑、食品添加劑以及表面活性劑等領域。

In addition, it is also used in fields such as pesticides, pharmaceuticals, coatings, inks, lubricant additives, papermaking chemicals, textile finishing agents, food additives, and surfactants.

以順酐為原料可以1，4-丁二醇（BOD)、v-丁內酯(GBL）、四氫呋喃（THF)、馬來酸、富馬酸和四氫酸酐等一系列重要的有機化學品和精細化學品，開發利用前景十分廣闊。

A series of important organic and fine chemicals, such as 1,4-butanediol (BOD), n-butyrolactone (GBL), tetrahydrofuran (THF), maleic acid, fumaric acid, and tetrahydroanhydride, can be produced from maleic anhydride as a raw material. The development and utilization prospects are very broad.

我國2003年表觀消費量約為21.1萬噸。其消費結構為:不飽和聚酯樹脂對順酐的需求量約占總需求量的71.1%，涂料約占6.2%，酒石酸約占3.8%，潤滑油添加劑約占0.9%，農用化學品約占1.4%，琥珀酸及斷約占2.4%，BDO、TFH等加氫產品約占2.8%，其他方面約占11.4%。

The apparent consumption in China was approximately 211000 tons in 2003. Its consumption structure is as follows: the demand for maleic anhydride in unsaturated polyester resin accounts for about 71.1% of the total demand, coatings account for about 6.2%, tartaric acid accounts for about 3.8%, lubricating oil additives account for about 0.9%, agricultural chemicals account for about 1.4%, succinic acid and succinic acid account for about 2.4%, hydrogenation products such as BDO and TFH account for about 2.8%, and other aspects account for about 11.4%.