Assertion: residual hydrogen chloride | /r/HasProperty | obtained in solvent
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text: The residual crude product remaining from the reduction in pressure is freed from phosgene, for example by distillation in which a gaseous mixture of phosgene and the residual hydrogen chloride is obtained in addition to a liquid mixture of isocyanate (and i.a., solvent), from which phosgene is separated, for example by absorption, whereby the residual hydrogen chloride is recovered in gaseous form, followed by the main amount of hydrogen chloride This procedure is generally described in SRI International, Report