| Rapidly developed in recent years,the domestic phosphate &compound fertilizer industry,the development also faces the serious challenge of the rapid growth of the industry and environmental protection: one is the rapid development of phosphate &compound fertilizer industry and resources,environment of contradictions increasingly prominent,the phosphogypsum mass over the years accumulated a huge amount of emissions,and gypsum retained on the further development of the industry has formed a serious challenge;Second,as the national environmental protection requirements to the industrial "three wastes" emissions more and more high,the government and social awareness increasing,phosphogypsum produced by environmental problem is becoming more and more open,phosphogypsum yard of new and renovated because of standards to improve construction cost multiplied,phosphate &compound fertilizer industry in the aspect of phosphogypsum are faced with the pressure will be more and more big.In particular,the comprehensive treatment of phosphogypsum has been the primary factor restricting the development of phosphate fertilizer industry since the introduction of the ammonium phosphate industry in 2011."11th five-year plan" at the end of the phosphorus gypsum production amount 62 Mt in China in 2010,the comprehensive capacity of 12.60 Mt,rate at 20.32%,"twelfth five-year" middle phosphorus gypsum production amount 70 Mt in 2013,the comprehensive capacity of 19 Mt,rate at 27.14%,phosphogypsum comprehensive capacity and rate has a tendency to increase year by year.But the ministry of industry and information technology's guidance on the comprehensive utilization of industrial production has made it clear that by the end of 2015,the comprehensive utilization rate of phosphogypsum has been increased to 40% from 20% in 2009.The phosphate fertilizer industry and enterprises face great pressure and challenges.The chemical company of tongling chemical industry group co.,LTD.,which is the backbone enterprise of domestic phosphate fertilizer,was the first company in China to introduce large phosphate production equipment from abroad in the early 1980 s.Through continuous technological upgrading,energy expansion,phosphoric acid and phosphate fertilizer production are constantly improving.The current annual production of phosphoric acid 300kt/a and emission of phosphorous gypsum is over 1700kt/a.Since the early 1990 s,the six chemical company of anhui province has embarked on the exploitation and utilization of phosphogypsum and research work,in the late 90 s,tongling city green Yang building materials co.,LTD.,after the founding,constantly on the new,comprehensive utilization of phosphogypsum,the reconstruction and phosphorus gypsum processing work progress.Currently has 1000 kt/a cement retarder production scale(including phosphogypsum modification enhanced 600 kt/a)and 100 kt/a building gypsum powder production plant and 600 kt/a phosphogypsum modification to enhance ball device coordination treatment of urban sewage treatment plant sludge 20 kt/a,green Yang building materials co.,LTD.In recent years of efforts,formed by conch group phosphorus gypsum products,represented by shandong taishan gypsum group types of phosphorus gypsum sales customers,phosphogypsum comprehensive processing WenZhongQuSheng,especially after 2010 years,aggregate processing phosphogypsum 14.7933 million t,annual sales of more than 1.9 million tons,the powerful guarantee of phosphogypsum yard in and out of balance.In 2012,for example,the chemical company of six countries discharged phosphogypsum of 182.44 million tons,and the green Yang building materials company handled 2640,040 tons of phosphogypsum in that year.At that time,the comprehensive treatment rate of domestic phosphorus gypsum was 24%,and the international maximum was 84%,while the treatment rate of tongling chemical industry group co.,ltd.was over 100%,which was 144.73 %,far exceeding the highest level in the world.Copper mineralization group green Yang building materials company in the project technology and production practice by phosphogypsum pretreatment technology,gypsum dehydration and hydration and CaSO4-lime-Jacqueline Nottingham gelled material hydration hardening technology,the successful use of phosphorus gypsum disk into a ball technology,timely to eliminate update of production process,not only leading the development direction of phosphorus gypsum processing,timely adjustment of product variety and size at the same time,relying on good phosphogypsum technology development advantage,transportation advantages,sales network(with the conch,reference,taishan domestic backbone enterprise of building materials such as mutual dependence,complementary advantages and win-win cooperation relationship)and Yangtze river delta location advantage,year after year to expand enterprise scale,strength,steady rise of phosphorus gypsum processing,powerful guarantee for the six chemical company production balance of the phosphogypsum yard,greatly alleviate the enterprise environmental pressures.Given the tongling chemical industry group co.,LTD.Has more than emissions in phosphorus gypsum processing use,phosphogypsum comprehensive utilization rate of 100% in advance,far more than China's phosphate fertilizer industry "twelfth five-year" put forward by phosphogypsum comprehensive utilization ratio of 30% at the end of the goals and objectives,therefore in China petroleum and chemical industry federation,China's phosphate fertilizer industry association organized the "comprehensive utilization of phosphogypsum in 2012 working meeting" on,arrange copper group company on behalf of the phosphate fertilizer industry enterprise,be read to the whole industry in the comprehensive utilization of phosphogypsum initiative.The development and utilization of phosphogypsum of copper group company is at the best level in the domestic industry and has a demonstration effect in the whole country. |
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