New synthesizing method of chlorodiphenylphosphine

The invention discloses a new synthesizing method of chlorodiphenylphosphine and belongs to the field of synthesizing technology. The method comprises the following steps of filling chlorobenzene intoa gasification tank for gasification, then uniformly mixing chlorobenzene and phosphorous into a mixing tank to obtain a mixed solution; guiding the gasified chlorobenzene into a tubular reactor, pumping the mixed solution into the tubular reactor through a metering pump for normal-temperature contact reaction between the chlorobenzene and the phosphorous in the tubular reactor at 580-610 DEG C;condensing and crudely distilling the reacted materials to separate chlorobenzene, chlorophenylphosphine and chlorodiphenylphosphine; recycling the separated chlorobenzene, and performing reduced pressure rectification on the mixture of the chlorophenylphosphine and the chlorodiphenylphosphine to obtain the products of chlorodiphenylphosphine and the chlorophenylphosphine. The new synthesizing method of the chlorodiphenylp