Ultra-fine calcium carbonate project I. Project construction content and scale The content and scale of the project mainly include: process design, equipment selection, civil construction, installation and ancillary facilities construction of 10kt/ a nano-calcium carbonate and 50kt/a submicron calcium carbonate devices. Main production equipment 1 18 sets, main buildings and structures 12000m2. Second, product market analysis Calcium carbonate is a major inorganic filler, which is widely used in rubber, plastics, paper, coatings, ink, building materials, daily chemicals, medicine, food, feed and other industries. With the rapid development of the above industries, calcium carbonate products are developing in the direction of ultra-fine particle size, diversified crystal forms and surface modification, making them both filling and strengthening. There are 253 calcium carbonate production enterprises in China, with the production capacity of light calcium carbonate of nearly 2000 kt/a, active calcium of 200Kt/a and superfine calcium of 50 kt/a. More than 80,000 tons of superfine activated calcium carbonate are imported every year. For example, the delivery price of light calcium carbonate imported from Germany for paper making in Shanghai is 900 marks/ton, equivalent to about 5,000 yuan/ton. The consumption of superfine calcium carbonate in developed countries such as Europe and America accounts for half of all light calcium products, and the specialization rate is very high. At present, the processing capacity of plastics in China is 654.38+00,000 kt/a, and the demand for calcium carbonate exceeds 654.38+00,000 kt/a. By the year 2000, the paper demand in China will reach 34,000 kt/a. Several hundred thousand tons of paper mills are being built in Zhenjiang, Changshu, Jiangyin, Zhejiang, Ningbo and Tianjin in China, with a total production capacity of 3,000 kt/a According to the current market demand and forecast, the short-term demand of superfine calcium carbonate is about 150kt/a, and the consumption is increasing at a rate of 20% every year, which has a broad market prospect. Three. Project Technology and Equipment Scheme The technical basis of this project is the cooperative research and development project of the Synthetic Ammonia Plant of Copper Chemical Group and the Institute of Solid State Physics of China Academy of Sciences: "Study on Preparation Technology and Production Technology of Nano CaCO3". This achievement passed the new product and technology appraisal of Anhui Economic and Trade Commission on June19991KLOC-0/2. Nano-calcium carbonate products have been tested by the Physical and Chemical Testing Center of China University of Science and Technology. The results show that the average particle size of cubic nano-calcium carbonate is 40nm, and the particle size is uniform. Chain nano-calcium carbonate: diameter 15-30nm, length 130- 180nm. The preparation of ultrafine calcium carbonate takes calcium oxide (CaO), carbon dioxide (CO2) and water (H2O) as the main raw materials, and the synthesis process is completed through the main stages of raw material refining, pretreatment, carbonization, activation, wrapping and drying. In the advanced process of calcium carbonate synthesis, the grain growth control technology and dispersion treatment technology in the preparation of nano-materials are introduced to prevent grain growth, adsorption and agglomeration, thus achieving the purpose of preparing ultrafine calcium carbonate. By adjusting the additives in the pretreatment process, the carbonization conditions in the carbonization process and the changes in the activator in the activation process, a variety of ultrafine calcium carbonate products with different crystal forms, particle sizes and surface properties can be prepared, which creates very favorable conditions for the popularization and application of ultrafine calcium carbonate. The equipment of this project has mature manufacturing technology in China, which can be localized. It is also possible to partially introduce foreign similar key equipment with good quality, good energy-saving effect and appropriate price. Four. Investment estimation The investment estimation scope of this project includes the civil engineering cost, equipment purchase cost, equipment transportation cost, installation cost, patent technology fee for survey and design, construction management, production preparation and other expenses of auxiliary production facilities such as production workshops and offices, factory roads and machine maintenance. The total investment of the project is/kloc-0.0485 million yuan, including fixed assets of 93/kloc-0.50 million yuan and working capital of/kloc-0.65438+700,000 yuan. V. Economic Benefit Forecast After the project is completed and put into production, the annual sales revenue115 million yuan, annual profit and tax 53615,200 yuan, annual profit 40,050,700 yuan, investment profit rate 38.2%, investment payback period 3.62 years (including the construction period of one year), and break-even point 34.2. The cooperation mode and specific requirements of intransitive verbs foreign parties can invest equipment and funds. This project is organized in the form of a joint-stock company. According to the investor's wishes, he can participate in or hold shares, which is finally decided by the investor according to the Company Law of People's Republic of China (PRC). Seven. General situation of undertaking enterprises and conditions for project construction. Copper Synthetic Ammonia Plant is a branch of Tongling Chemical Industry Group Co., Ltd., a top 500 enterprise in China. Its main products are industrial ammonia, strontium carbonate, industrial ammonia, liquid carbon dioxide, hydrogen, ammonium bicarbonate and refined sulfur. It is an advanced enterprise in Anhui Province and a clean and civilized factory of the former Ministry of Chemical Industry. The enterprise has complete professional and technical personnel and strong product development ability. Enterprise management is scientific and rigorous, consciously adapts to the market, and has certain modern means. At present, we are organizing the implementation of ISO9000 standard and creating famous brands with strontium carbonate. Tongling area is rich in high-quality limestone minerals and high-grade calcite resources. The enterprise has enough by-product carbon dioxide and its own unique treatment and purification technology and production capacity, which provides favorable conditions for the project construction. Tongling City is located on the south bank of the Yangtze River, west of Nanjing120km. The enterprise is located at18km east of Tongling city. The calcium carbonate project is located between Huwu Yanjiang Expressway and Tong Ning Railway, and there is a special railway line. The installation area is 1.5km away from the wharf, and the transportation system is perfect. The utilities, sites, factories and other facilities required for this project have met the requirements. You can refer to it and calculate how much light calcium carbonate factory needs.