-
1.发明公开Phosphorus acid catalyst for preparation of 3,9-dichloro-2,4,8,10-tetraoxa-3,9-diphospha spiro (5,5) undecane 失效磷酸催化剂为3,9-二氯-2,4,8,10-四氧杂-3,9-二磷杂螺（5,5）十一烷的制备。
公开(公告)号：EP0113994A1
公开(公告)日：1984-07-25
申请号：EP83307781.1
申请日：1983-12-20
IPC分类号： C07F9/15
CPC分类号： C07F9/65746
摘要： There is provided a process for reacting pentaerythritol with a trivalent phosphorus trihalide conducted in the presence of a phosphorus acid catalyst such as methyl acid phosphate. The reaction product is a useful intermediate for the preparation of flame retardants.
-
公开(公告)号：EP0033999B1
公开(公告)日：1983-03-23
申请号：EP81300005.6
申请日：1981-01-02
IPC分类号： C07F9/11
CPC分类号： C22B60/026 , C07F9/11 , C07F9/142
-
3.发明授权Phosphorus acid catalyst for preparation of 3,9-dichloro-2,4,8,10-tetraoxa-3,9-diphospha spiro (5,5) undecane 失效用于制备3,9-二氯-2,4,8,10-四氮杂-3,9-二氢苯并噻唑（5,5）的磷酸酯催化剂
公开(公告)号：EP0113994B1
公开(公告)日：1987-01-14
申请号：EP83307781.1
申请日：1983-12-20
IPC分类号： C07F9/15
CPC分类号： C07F9/65746
-
公开(公告)号：EP0033999B2
公开(公告)日：1987-09-09
申请号：EP81300005.6
申请日：1981-01-02
IPC分类号： C07F9/11
CPC分类号： C22B60/026 , C07F9/11 , C07F9/142
-
公开(公告)号：EP0033999A1
公开(公告)日：1981-08-19
申请号：EP81300005.6
申请日：1981-01-02
IPC分类号： C07F9/11
CPC分类号： C22B60/026 , C07F9/11 , C07F9/142
摘要： This application is directed to a process for preparing dialkyl phosphoric acid, preferably di(2-ethylhexyl) phosphoric acid. This latter material is used in uranium extraction from wet-process phosphoric acid as a kerosine solution along with a synergist, trioctyl phosphine oxide.
-
-
-
-
搜索结果
5 条记录 (耗时 0.008 秒)
