发明名称 |
CYCLIC PHOSPHONITRILIC HALIDE PROCESS |
摘要 |
<p>Cyclic phosphonitrilic halide trimer is made in high yield and at a rapid rate by adding NH3 or ammonium halide to a pyridine-hydrogen halide complex and adding phosphorus pentahalide and a solvent for the trimer (e.g. monochlorobenzene) and heating the mixture to above 90.degree.C to form trimer which dissolves in the solvent and then separating the trimer-solvent phase from the residue phase of pyridine-hydrogen halide complex and recovering trimer from the solvent phase and recycling the pyridine-hydrogen halide phase to a subsequent procedure conducted in the same manner. The process can also be adapted to produce linear species in high yield also.</p> |
申请公布号 |
CA1243819(A) |
申请公布日期 |
1988.11.01 |
申请号 |
CA19860521165 |
申请日期 |
1986.10.22 |
申请人 |
ETHYL CORPORATION |
发明人 |
SULZER, GERALD M.;TEDDER, JOSEPH B., JR.;ADAMS, JAMES R., JR.;JUNEAU, MATTHEW K. |
分类号 |
C01B21/098;(IPC1-7):C01B21/098 |
主分类号 |
C01B21/098 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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