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1.发明授权Bis(4-halo-phthalic acid)quarter salts, process for their preparation and their use 失效双（4-卤代 - 邻苯二甲酸）-Quartärsalze，它们的制备方法和它们的用途。
公开(公告)号：EP0416602B1
公开(公告)日：1995-03-29
申请号：EP90117134.8
申请日：1990-09-06
发明人： Vainberg, Olga , Shorr, Leonard M.
CPC分类号： C07C63/68
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2.发明公开Bis(4-halo-phthalic acid)quarter salts, process for their preparation and their use 失效双（4-卤代 - 邻苯二甲酸）-Quartärsalze，它们的制备方法和它们的用途。
公开(公告)号：EP0416602A2
公开(公告)日：1991-03-13
申请号：EP90117134.8
申请日：1990-09-06
发明人： Vainberg, Olga , Shorr, Leonard M.
CPC分类号： C07C63/68
摘要： The bis(4-halo-phthalic acid) quarter salt of formula
wherein M is an alkali metal or ammonium, and X is a halogen atom is descibed. Further described is a process for its preparation and a method of purifying 4-halo-phthalic acid containing impurities, which comprises preparing therefrom a compound of formula I, separating the compound of formula I which precipitates from the mother liquor, washing it and recovering the 4-halo-phthalic acid.摘要翻译： 的双（4-卤代 - 邻苯二甲酸）式季盐
worin M是碱金属或铵，X是一个卤原子descibed。 进一步描述的是其制备方法的方法纯化4-卤代邻苯二甲酸含有杂质，该方法包括从式I的化合物制备有，分离式I的其中从母液中沉淀，洗涤，并回收所述的化合物的方法 4-卤代邻苯二甲酸。 -
3.发明公开Bis(4-halo-phthalic acid)quarter salts, process for their preparation and their use 失效BIS（4-HALO-PHTHALIC ACID）季铵盐，其制备方法及其使用
公开(公告)号：EP0416602A3
公开(公告)日：1992-01-08
申请号：EP90117134.8
申请日：1990-09-06
发明人： Vainberg, Olga , Shorr, Leonard M.
CPC分类号： C07C63/68
摘要： The bis(4-halo-phthalic acid) quarter salt of formula
wherein M is an alkali metal or ammonium, and X is a halogen atom is descibed. Further described is a process for its preparation and a method of purifying 4-halo-phthalic acid containing impurities, which comprises preparing therefrom a compound of formula I, separating the compound of formula I which precipitates from the mother liquor, washing it and recovering the 4-halo-phthalic acid.
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