Process for producing phosphoruscopper

Abstract

The present invention relates to a production process of phosphorus copper, and features that dewatered yellow phosphorus is added into molten copper under the action of catalyst to produce phosphorus copper. The process has fast reaction speed, and high quality of product with high phosphorus content. Various products with phosphorus content not higher than 15 % may be produced in requirement, the yellow phosphorus yield may reach 95-98 %, and the escaped phosphorus may be recovered through combustion and tail gas absorption reaching total phosphorus yield up to 99.8 %. The present invention is one clean production process with easy-to-obtain yellow phosphorus, copper and catalyst material and low production cost.

Description

technical field [0001] The invention relates to a production method of phosphor copper. technical background [0002] The industrial production of phosphor copper is currently mostly produced from red phosphorus. The more advanced methods in foreign countries include "inert gas blowing method" and "mixed sealing method". These two methods have relatively complicated processes, large investment and high cost. The yield is 90% to 97%. Domestically, the "blending method", "semi-closed mixing method" and "phosphorus addition method" are adopted, and a large amount of gaseous phosphorus escapes from the "blending method" and "semi-closed mixing method". Oxidized to P 2 o 5 , large loss of phosphorus, heavy environmental pollution, poor quality of phosphorus copper products, phosphorus content is 13% to 14.7%, phosphorus yield is about 92%, product quality phosphorus content is unstable, the time required for the reaction is long, and its compound reaction The temperature is d...

AI Technical Summary

Problems solved by technology

The more advanced methods in foreign countries include "inert gas blowing method" and "mixed sealing method". These two methods are relatively complicated in process, large in investment and high in cost. The yield is 90% to 97%. Domestically, the "blending method", "semi-closed mixing method" and "phosphorus addition method" are adopted, and a large amount of gaseous phosphorus escapes from the "blending method" and "semi-closed mixing method". Oxidized to P 2 o 5 , large loss of phosphorus, heavy environmental pollution, poor quality of phosphorus copper products, phosphorus content is 13% to 14.7%, phosphorus yield is about 92%, product quality phosphorus content is unstable, the time required for the reaction is long, and its compound reaction The temperature is difficult to control; these methods are all based on red phosphorus to produce phosphor copper, and the impurities in red phosphorus are higher than yellow phosphorus, so the impurities contained in phosphor copper are high and the product purity is poor

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