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1. 发明公开

EP2479149A1 METHOD FOR TREATING WASTE SALINE WATER PRODUCED IN PRODUCTION PROCESS OF DIPHENYLMETHANE DIISOCYANATE (MDI) 有权转让
标题翻译：了治疗AT THE PROCESS FOR二异氰酸酯（MDI）累积含盐废水
公开(公告)号：EP2479149A1
公开(公告)日：2012-07-25
申请号：EP09744307.1
申请日：2009-09-17
申请人： Ningbo Wanhua Polyurethanes Co., Ltd. , Beijing University Of Chemical Technology
发明人： ZHANG, Hongke , HUA, Weiqi , LIU, Xiaogao , ZHAO, Zhenhua , SUN, Shuchang , DING, Jiansheng , CHEN, Jianfeng , ZHANG, Pengyuan , ZOU, Haikui , CHU, Guangwen , XU, Limin
IPC分类号： C02F9/08 , C02F9/02 , C02F1/20 , C02F1/26 , C02F1/28 , C02F1/72 , C02F1/76 , C02F1/78 , C02F103/36
CPC分类号： C02F9/00 , C01D3/16 , C01D3/18 , C02F1/20 , C02F1/265 , C02F1/283 , C02F1/38 , C02F1/72 , C02F1/74 , C02F2103/36
摘要： The invention relates to a method of circular use of waste brine produced in the manufacture process of MDI, comprising the following steps: (1) the waste brine produced in the manufacture process of MDI is subjected to a high-gravity extraction and then to a column extraction, wherein said waste brine contains aniline, diaminodiphenylmethane and polyamine; (2) the waste brine from step (1) is transmitted to a stripping tower for steam stripping; (3) the waste brine from the stripping tower of step (2) and a chemical oxidant are transmitted to an oxidation reactor to which air is blown for aeration; (4) the waste brine after the treatment of step (3) is transmitted to an absorption tower for absorption. The invention makes the salt water have TOC of less than 8 ppm and TN of less than 2.5 ppm and achieves regeneration of resources in the waste brine such as sodium chloride and water and the like for circular use.
摘要翻译：本发明涉及循环利用在MDI的制造过程中产生的废盐水的方法，包括以下步骤：（1）在MDI的制造过程中产生的废盐水经受高重力提取，然后用一柱提取，worin所述废盐水含有苯胺，氨基二和多胺; （2）将来自步骤（1）的废盐水是反式mitted到汽提塔用于汽提; （3）将来自步骤（2）和化学氧化剂的汽提塔的废盐水的反式mitted向氧化空气被吹入曝气反应器; （4）步骤的处理后的废盐水（3）为反式mitted在吸收塔吸收。本发明使得盐水具有小于8ppm的的TOC和小于2.5ppm的的TN和在废盐水资源实现再生：如氯化钠和水等供循环利用。

2. 发明公开

EP2145874A1 A PROCESS FOR PREPARATION OF POLYMETHYLENE POLYPHENYL POLYAMINE 有权转让
标题翻译： VERFAHREN ZUR HERSTELLUNG VON聚乙烯基苯酚酚醛
公开(公告)号：EP2145874A1
公开(公告)日：2010-01-20
申请号：EP07720694.4
申请日：2007-04-06
申请人： Ningbo Wanhua Polyurethanes Co., Ltd. , Beijing University Of Chemical Technology
发明人： DING, Jiansheng , CHEN, Jianfeng , ZHANG, Hongke , ZOU, Haikui , HUA, Weiqi , ZHANG, Pengyuan , SUN, Shuchang , CHU, Guangwen , XU, Limin
IPC分类号： C07C211/55 , C07C209/18 , C08G12/08
CPC分类号： C07C209/78 , C08G12/08 , C07C211/53
摘要： The present invention provides a method of preparing polymethylene-polyphenyl-polyamine (briefly referred to as polyamine, DAM), in which a high gravity rotating bed is used as the mixing reactor of formaldehyde and aniline hydrochloride, the mixing solution of aniline hydrochloride and circulation solution and the formaldehyde are fed into the high gravity rotating bed reactor proportionally to carry out mixing and condensation reaction under a condition of a very high gravity; the materials leaving the high gravity rotating bed reactor is introduced into a stirred vessel to proceed with the pre-condensation reaction and obtain a condensation solution; and the process steps of heating, molecular rearrangement, neutralization, water washing and purification, etc. are completed to obtain the refined DAM. With the method according to the present invention, the main by-products is obviously reduced in the condensation process, the phenomenon of deposit attaching to the inner walls of circulation pipes and heat exchange and blockage are prevented in the condensation process, the impurity content is low in the refined DAM, and the subsequent product MDI has a lighter color, the product quality is stable and may be improved to a certain extent.
摘要翻译：本发明提供了使用高重力旋转床作为甲醛和苯胺盐酸盐的混合反应器的聚亚甲基 - 多苯基多胺（简称为多胺，DAM）的制备方法，盐酸苯胺和循环的混合溶液溶液和甲醛按比例进料到高重力旋转床反应器中，以在非常高的重力条件下进行混合和缩合反应; 将离开高重力旋转床反应器的材料引入搅拌容器中进行预缩合反应并获得缩合溶液; 完成加热，分子重排，中和，水洗净化等工艺步骤，获得精制DAM。利用本发明的方法，冷凝过程中主要副产物明显减少，在冷凝过程中防止了附着于循环管内壁的沉积物的现象和热交换和堵塞，杂质含量为低精度DAM，后续产品MDI具有较浅的颜色，产品质量稳定，可在一定程度上提高。

3. 发明授权

EP2145874B1 PROCESS FOR THE PREPARATION OF POLYMETHYLENE POLYPHENYL POLYAMINE 有权转让
标题翻译：用于生产多亚甲基多多胺
公开(公告)号：EP2145874B1
公开(公告)日：2011-07-27
申请号：EP07720694.4
申请日：2007-04-06
申请人： Ningbo Wanhua Polyurethanes Co., Ltd. , Beijing University Of Chemical Technology
发明人： DING, Jiansheng , CHEN, Jianfeng , ZHANG, Hongke , ZOU, Haikui , HUA, Weiqi , ZHANG, Pengyuan , SUN, Shuchang , CHU, Guangwen , XU, Limin
IPC分类号： C07C211/55 , C07C209/18 , C08G12/08
CPC分类号： C07C209/78 , C08G12/08 , C07C211/53
摘要： A process for preparation of polymethylene polyphenyl polyamine comprises the following steps: a. mixing and reacting aniline and hydrochloric acid to obtain aniline hydrochloride; b. feeding the aniline hydrochloride to recycle tube and mixing said aniline hydrochloride with the recycling liquid from condensating agitating kettle, then cooling the obtained mixture by heat exchanger; c. feeding the cooled mixture and formaldehyde solution to super-gravitational rotating bed reactor separately, and then mixing and conducting pre-condensating reaction; d. feeding the feed discharged from super-gravitational rotating bed reactor to condensatingagitating kettle to conduct pre-condensating reaction and molecular rearrangement reaction; feeding a part of reaction mixture discharged from condensating agitating kettle to recycle tube as recycling liquid, and discharging another part of reaction mixture as product.

4. 发明授权

EP2479149B1 METHOD FOR TREATING WASTE SALINE WATER PRODUCED IN PRODUCTION PROCESS OF DIPHENYLMETHANE DIISOCYANATE (MDI) 有权转让
标题翻译：了治疗AT THE PROCESS FOR二异氰酸酯（MDI）累积含盐废水
公开(公告)号：EP2479149B1
公开(公告)日：2014-07-16
申请号：EP09744307.1
申请日：2009-09-17
申请人： Wanhua Chemical (Ningbo) Co., Ltd. , Beijing University Of Chemical Technology
发明人： ZHANG, Hongke , HUA, Weiqi , LIU, Xiaogao , ZHAO, Zhenhua , SUN, Shuchang , DING, Jiansheng , CHEN, Jianfeng , ZHANG, Pengyuan , ZOU, Haikui , CHU, Guangwen , XU, Limin
IPC分类号： C02F9/00 , C01D3/16 , C01D3/18 , C02F1/20 , C02F103/36 , C02F1/74 , C02F1/38 , C02F1/28 , C02F1/26 , C02F1/72
CPC分类号： C02F9/00 , C01D3/16 , C01D3/18 , C02F1/20 , C02F1/265 , C02F1/283 , C02F1/38 , C02F1/72 , C02F1/74 , C02F2103/36

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