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公开(公告)号:US20110021810A1
公开(公告)日:2011-01-27
申请号:US12637550
申请日:2009-12-14
申请人: Youquan DENG , Xiaoguang GUO , Feng SHI , Qinghua ZHANG , Xiangyuan MA , Liujin LU , Jian LI , Xiong TIAN , Yubo MA , Jianpeng SHANG , Xinjiang CUI , Liguo L. WANG , Hongzhe ZHANG
发明人: Youquan DENG , Xiaoguang GUO , Feng SHI , Qinghua ZHANG , Xiangyuan MA , Liujin LU , Jian LI , Xiong TIAN , Yubo MA , Jianpeng SHANG , Xinjiang CUI , Liguo L. WANG , Hongzhe ZHANG
IPC分类号: C07C263/00
CPC分类号: C07C263/04 , B01J23/02 , B01J23/06 , B01J23/10 , B01J23/18 , B01J23/28 , B01J23/30 , B01J23/72 , B01J23/745 , B01J23/75 , B01J23/755 , B01J23/80 , B01J23/8437 , B01J31/0249 , B01J31/0278 , B01J31/0284 , B01J31/0288 , B01J31/0292 , B01J37/031 , C07C265/14
摘要: The present invention discloses a method for preparing isocyanates by liquid-phase catalytic thermal cracking. In this method, in a reaction-rectification thermal cracking reactor, using a catalyst composition comprising a superfine powder metal oxide catalyst and an ionic liquid, an alkyl or aryl dialkylurethane, or multialkylurethane being a reactant is liquid-phase thermal cracked for a reaction time of 0.5-3 h under a reaction temperature of 160-220° C. and an absolute pressure of 1000-8000 Pa so as to prepare the corresponding isocyanate. The invention has the characteristics of low thermal cracking temperature, high yield of target products, relatively simple reaction apparatus and good universality for substrates (the yields of HDI, MDI, TDI, HMDI, NDI and IPDI or the like are all >85%) and the like.
摘要翻译: 本发明公开了一种通过液相催化热裂解制备异氰酸酯的方法。 在该方法中,在反应精制热裂解反应器中,使用包含超细粉末金属氧化物催化剂和离子液体的催化剂组合物,作为反应物的烷基或芳基二烷基氨基甲酸酯或多烷基氨基甲酸酯是液相热裂化反应时间 在反应温度为160-220℃,绝对压力为1000-8000Pa下为0.5-3小时,以制备相应的异氰酸酯。 本发明具有热裂解温度低,靶产品收率高,反应装置相对简单,基板通用性好(HDI,MDI,TDI,HMDI,NDI,IPDI等的收率均为> 85%)的特点, 等等。
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公开(公告)号:US08809574B2
公开(公告)日:2014-08-19
申请号:US12637550
申请日:2009-12-14
申请人: Youquan Deng , Xiaoguang Guo , Feng Shi , Qinghua Zhang , Xiangyuan Ma , Liujin Lu , Jian Li , Xiong Tian , Yubo Ma , Jianpeng Shang , Xinjiang Cui , Liguo L Wang , Hongzhe Zhang
发明人: Youquan Deng , Xiaoguang Guo , Feng Shi , Qinghua Zhang , Xiangyuan Ma , Liujin Lu , Jian Li , Xiong Tian , Yubo Ma , Jianpeng Shang , Xinjiang Cui , Liguo L Wang , Hongzhe Zhang
IPC分类号: C07C263/00 , B01J23/843 , B01J31/02 , B01J23/18 , B01J23/10 , B01J23/06 , B01J37/03 , C07C263/04 , B01J23/80 , B01J23/75 , B01J23/02 , B01J23/28 , B01J23/755 , B01J23/745 , B01J23/72 , B01J23/30
CPC分类号: C07C263/04 , B01J23/02 , B01J23/06 , B01J23/10 , B01J23/18 , B01J23/28 , B01J23/30 , B01J23/72 , B01J23/745 , B01J23/75 , B01J23/755 , B01J23/80 , B01J23/8437 , B01J31/0249 , B01J31/0278 , B01J31/0284 , B01J31/0288 , B01J31/0292 , B01J37/031 , C07C265/14
摘要: The present invention discloses a method for preparing isocyanates by liquid-phase catalytic thermal cracking. In this method, in a reaction-rectification thermal cracking reactor, using a catalyst composition comprising a superfine powder metal oxide catalyst and an ionic liquid, an alkyl or aryl dialkylurethane, or multialkylurethane being a reactant is liquid-phase thermal cracked for a reaction time of 0.5-3 h under a reaction temperature of 160-220° C. and an absolute pressure of 1000-8000 Pa so as to prepare the corresponding isocyanate. The invention has the characteristics of low thermal cracking temperature, high yield of target products, relatively simple reaction apparatus and good universality for substrates (the yields of HDI, MDI, TDI, HMDI, NDI and IPDI or the like are all>85%) and the like.
摘要翻译: 本发明公开了一种通过液相催化热裂解制备异氰酸酯的方法。 在该方法中,在反应精制热裂解反应器中,使用包含超细粉末金属氧化物催化剂和离子液体的催化剂组合物,作为反应物的烷基或芳基二烷基氨基甲酸酯或多烷基氨基甲酸酯是液相热裂化反应时间 在反应温度为160-220℃,绝对压力为1000-8000Pa下为0.5-3小时,以制备相应的异氰酸酯。 本发明具有热裂解温度低,靶产品收率高,反应装置相对简单,基板通用性好(HDI,MDI,TDI,HMDI,NDI,IPDI等的收率均为> 85%)的特点, 等等。
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