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In this paper, the traditional treatment technologies of lead anode slime, simultaneous treatment, preparation of antimony pentachloride, its hydrolysis process and the study of the relevant hydrolyzed precipitate were overviewed.

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A new technology preparation of pentachloride antimony from antimony-rich lead anode slime was developed, which is significant for the comprehensive use of antimony and improving the downstream processing of antimony products.

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The result indicated that: the solubility of phosphorus pentafluoride in aether was decreasing as temperature rising; when temperature rises from 0℃ to 30℃, the solubility of phosphorus pentafluoride in aether decrease from 1.5448g/mL to 0.7335g/mL.

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A process of preparing phosphorus pentafluoride was put forward: first, mesneproduct was prepared from phosphorus pentoxide and anhydrous hydrogen fluoride; second, phosphorus pentafluoride was acquired after dealing with the hexafluorophosphoric acid.

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In solid phase process, the polyiodides, which include triiodide, pentaiodide, heptaiodide, nonaiodide and undecaiodide tetra-n-butyl ammonium iodide, tetrabutyl ammonium bromide and tetramethyl ammonium iodide poly-compounds, were synthesized by the low-heat solid phase reaction between iodine and tetra-n-butyl ammonium iodide, tetrabutyl ammonium bromide or tetramethyl ammonium iodide; In complexation process, solution polyiodides were synthesized by complexing action of different agents; In resinifying process, triiodide, pentaiodide, heptaiodide resinic polyiodides were synthesized by ion-exchange when the strong basicity styrene anion exchange resin, potassium iodide and iodine were used as raw materials.

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