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The problem of the outlet of Glauber's salt produced by membrane method for removing nitrate

2009-03-06View Original

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This post was last edited by sunjl1981 on 2013-1-6 23:46. Our company uses the membrane method to remove nitrate instead of the barium method to remove sulfate. After removing sulfate radicals, a large amount of mirabilite is produced (about 20 tons per day). The specific indicators are as follows: We are now looking for manufacturers or groups in Xinjiang to inquire. It can be used for free. Product sodium sodium sulfate % ≥ 40 calcium and magnesium content (calculated as magnesium) % ≤ 0.1 chloride (calculated as chlorine) % ≤ 0.9 # hcbbs
Reply #22009-03-09
How big is your chlor-alkali plant? Which membrane is used? How much would it cost to build a 100,000-ton chlor-alkali membrane denitrification process?
Reply #32009-03-13
Improper structure restricts industry progress. Products and industrial structure sales layout need to be adjusted urgently - my country's Glauber's Salt Industry Current Situation, Development Prospects and Strategic Focus After about 50 years of development, my country has become a major producer of Glauber's Salt. At the same time, it has also exposed problems such as unreasonable crystal structure, relatively backward technical level, and disordered exploitation and utilization of resources. At the 2008 China Inorganic Salt Academic and Technical Exchange Conference held in Yichang, Hubei Province in mid-October, representatives attending the meeting believed that my country should learn from the development experience of the thenardite powerhouses, make use of the unique thenardite mineral resources, adjust the product and industrial structure, integrate the productivity layout, strengthen industry regulation, and enhance the international status of the domestic thenardite industry. Improper structure restricts industry progress. According to Li Xxian, chief engineer of Sichuan xxxx Glauber's Salt Co., Ltd., since the birth of my country's Glauber's Salt industry, the production scale has been rising. The output has quadrupled in the past 20 years. The production capacity of a single set of equipment ranks first in the world, and the distribution of production capacity has also gradually expanded. In recent years, the domestic thenardite market has expanded in depth, showing a trend of diversified development, and market competition has become increasingly fierce. Generally speaking, Glauber's salt companies have not done enough to develop the market. They only focus on the existing market and lack research and development of potential markets, which has led to disorder and chaos in domestic market competition. At present, it seems that the total domestic Glauber's Salt market is slightly surplus and structural shortages coexist. In the past ten years, my country's thenardite production has soared, with production slightly exceeding sales. At the same time, there is also the problem of structural shortage. More than 95% of the total market sales are ordinary saltpeter, and the proportion of first-class and first-class products is low. The output of special saltpetre that meets the needs of special industries is very small. Glauber's salt products that are suitable for special physical and chemical index requirements cannot meet the market demand, and the product structure is not very reasonable. As far as Glauber's salt production technology is concerned, China is close to the world's advanced level in some fields. The natural circulation vacuum evaporation and standard tank vacuum evaporation nitrate production technologies introduced in my country in the late 1970s have shortcomings such as simple structure, high energy consumption, and low output. With the continuous promotion of vacuum nitrate production technology, my country's nitrate production technology has made great progress in the past 20 years. At present, the technical and economic indicators of domestic more advanced thenardite production enterprises are close to the international advanced level. However, compared with the rapid development of the thenardite industry, the overall domestic technical level is still not high, a large number of production devices with backward technology still exist, and the average labor productivity is only one-half of the international advanced level. Industry experts said that my country's thenardite enterprises lack mature experience and a solid foundation in terms of innovation in production technology, product development, and management mechanisms. There is no unified collaboration body for development and innovation between enterprises and scientific research and design institutions, resulting in low-level duplication of equipment construction, lack of stamina in technological progress, and lack of vitality in industrial development. At present, there are more than 200 Glauber's Salt production companies in my country. Most of them have backward technology, outdated equipment, high production energy consumption, and poor product quality. In order to survive, they can only impact the market at low prices, resulting in the advantageous companies using advanced process equipment unable to show their market advantages. Some experts interpret this phenomenon as "bad money drives out good money" and believe that it will seriously affect the improvement of the overall technical level and competitiveness of my country's thenardite industry, and is also a manifestation of the abnormal development of the industry. In addition, my country's Glauber's Salt industry still has problems such as resource exploitation intensity is too high, too fast, and the recovery rate is too low. Domestic mirabilite mineral resources are endowed by nature, but in recent years, mirabilite production companies have been eager for quick success and failed to mine and utilize the resources in an orderly and reasonable manner. At the same time, the mining intensity was too high, causing a great waste of resources. Multiple factors affect the industry trend. Experts attending the meeting believed that the trend of the thenardite industry is mainly affected by five factors. First, * * The previously implemented "two preventions" macro-control was a direct factor affecting the development of the thenardite industry. any one * * Any industry is subject to the constraints, control or stimulation of the country's macro-control. The round of macro-control that began in the second half of last year has two obvious characteristics. First, the regulation focuses on preventive and forward-looking measures. Second, it treats the situation differently and does not mention one-size-fits-all. Second, the development of related industries has a pulling effect on the development of Glauber's salt. The rapid development of washing, textile, printing and dyeing, glass, papermaking, chemical and other industries will effectively promote the development of the thenardite industry. The steady growth of the national economy has accelerated the urbanization process and accelerated the development of the central and western regions, providing a rare opportunity for the development of the above-mentioned industries, which will directly stimulate the development of the thenardite industry. Third, joining the WTO has opened up a broad development space for the thenardite industry. After joining the WTO, China's GDP increased by 2-4 percentage points, with labor-intensive industries and resource development industries benefiting the most. Glauber's salt is my country's superior resource and should enjoy superior market resources in the international division of labor. After joining the WTO, the export of my country's Glauber's Salt products has reached an unprecedented high. ; The increase in the export volume of related industries (textile industry, building materials industry) has also increased the consumption of saltpeter in related industries, thus effectively driving the rapid development of the thenardite industry. Fourth, laws, regulations, industrial policies, and standards guide the development of the thenardite industry. * * , local laws, regulations, industrial policies, standards and specifications, etc., will play a great role in guiding the healthy development of the thenardite industry, standardizing the market order, stably developing the market, adopting advanced technology, and eliminating backward productivity, and have an important impact on the development of the thenardite industry. The relevant regulations clearly put forward the standards for industry approval, which will definitely play a positive role in the industrial development of Sichuan Nitrate. Fifth, the development trend of the world's thenardite industry promotes the development of my country's thenardite industry. In foreign Glauber's salt production, natural Glauber's salt output and by-product Glauber's salt each account for 50%, and natural Glauber's salt mineral resources are scarce. Its industrial characteristics are very prominent: Imbalance in geographical production ; Abnormal market distribution ; Production enterprises are concentrated and large in scale ; The production technology is advanced and the level of automation is high. The research and development of new applications of drying Glauber's salt products using ebullated beds is very active and is producing results. The medium-term and long-term prospects of the industry are promising. It is expected that the next 5-10 years will be a turbulent period of differentiation, integration and reorganization of the production capacity of my country's thenardite industry. During this period, domestic and foreign market demand will steadily increase ; The consumption structure is stable, the demand for ordinary nitrate has increased significantly, and the development of special nitrate has accelerated. ; The market consumption of basic chemical product raw materials shows a strong upward trend. At the same time, the benefits of advanced technology and economies of scale will be highlighted, and backward productivity will be eliminated. From the perspective of development trends, the advanced production process of externally heated five-effect forced circulation vacuum nitrate production will replace the backward process. ; The level of self-control will * * promote ; The nitrate drying section is generally used in Zaokang, and the production capacity of a single unit will generally increase. At the same time, total production will double, leading to a relative equilibrium period. The use value of commodities is the first element of market circulation value, and market transaction volume is the external manifestation of this value. Enterprises must organize production and formulate plans based on the use value of the product in the market, that is, the circulation value. According to the above analysis, my country's annual output of Glauber's Salt will exceed 10 million tons in the medium and long term, and during this period of stable scale, there will be a period of relative balance between production and sales. In addition, foreign capital will actively enter my country's thenardite industry, and the possibility of foreign investment integrating into the development of my country's thenardite resources will increase. The introduction of foreign capital will transform my country's Glauber's Salt industry from local production to global large-scale production, which will definitely promote the development of my country's Glauber's Salt industry and will affect the development of my country's Glauber's Salt industry in both positive and negative directions. Lailai aims at five major strategic priorities. Facing the development status and focus issues of my country's thenardite industry, Li xx first believes that the domestic thenardite industry should focus on the following aspects as strategic priorities for future development. First, promote industrial innovation in an all-round way. Innovation plays an increasingly important role in the industry's ability to gain competitive advantage. my country's Glauber's Salt industry needs this series of innovations and must launch an industry-wide innovation revolution. Introduce advanced foreign marketing concepts and establish a modern marketing system. It is necessary to study and implement a marketing system and mechanism that is suitable for both industry characteristics and market consumption characteristics, and boldly draw on marketing experience from foreign countries and other industries to expand market share and reduce sales costs. The second is to promote corporate restructuring, optimize corporate structure, support the good and eliminate the bad. The "Matthew Effect" should be implemented in the thenardite industry, the corporate structure should be optimized, the superior ones should be supported and the inferior ones eliminated, and the process of corporate restructuring should be accelerated. With the goal of economies of scale, we should optimize the industrial organizational structure, actively support advantaged enterprises, and eliminate disadvantaged enterprises. In the medium and long term, my country's thenardite industry production entities should be controlled at 10 to 15, with the industrial concentration close to the advanced foreign level. The cluster industry system should be strengthened, the industrial structure should be adjusted and optimized, the core competitiveness of the industry should be enhanced, and the construction of an excellent industrial system should be completed. The third is to rely on advantageous production areas to build * * Industrial strength and core competitiveness. How to build the strategic development focus of my country's Glauber's Salt Industry * * strong, structured * * core competitiveness. Sichuan Nitrate in the Western Plate, Hunan Nitrate and Sun Nitrate in the middle and lower reaches of the Yangtze River are the three major advantageous production areas in my country. Sichuan Nitrate is located in the mainland but has abundant resource reserves and good timing. ; Although the resource base of Xiangniu and Sunniu is slightly poor, they are located near the river and the sea and have a favorable geographical location. The thenardite industry should be built based on three major advantageous production areas * * team, turning their respective advantages into strengths to build * * core competitiveness. The fourth is to increase efforts in the development of new products and the creation of the thenardite industry chain. Enterprises in the industry should strengthen the research and application of deep processing of Glauber's salt products and vigorously carry out the research and development of special salt salt. ; It is necessary to strengthen the application research of crystallization theory in the Glauber's salt industry and accelerate the research on new technologies for the production of large-grain salt salt. At the same time, we should increase the applied research and development of basic chemical products using Glauber's salt as raw material to enhance the sustainable development of the Glauber's salt industry. The fifth is to expand export share in the international market and accelerate the transformation to an export-oriented industrial economy. There is a large vacancy in the international thenardite market in the medium and long term. my country's thenardite industry should seize the opportunity and vigorously explore overseas markets. It should formulate a comprehensive export strategy to stabilize the Asian market, cultivate the Middle East and African markets, compete for the European and American markets, and maximize export regions and countries. In response to this reality, industry experts suggest: Adjust the layout of the thenardite industry and implement an industry approval system. The productivity distribution of my country's Glauber's Salt industry is scattered and chaotic, with a vast land and many households. As a result, the cost of domestic competition remains high, and the overall technical level and economic quality cannot be improved. The productivity layout should be integrated to support the development of advantageous saltpeter-producing areas and suppress the saltpeter-producing areas with poor resource quality and backward technical level to slim down and strengthen the industry. The barriers to entry of new capital into the thenardite industry should be raised and an industry approval system should be implemented. Develop, conserve and store resources in an orderly manner. my country's thenardite mineral resources are very superior, but they cannot be consumed in advance without restrictions. They should be developed and utilized in an orderly and planned manner. To change the current situation of rapid development of thenardite resources in the east and slow pace in the west, we should strictly limit the development and utilization of our country's thenardite resources by foreign capital and establish a guarantee system for my country's thenardite resources. system, strengthen the reserve system of my country's thenardite resources, improve resource management legislation, strictly enforce the resource mining licensing system, thoroughly rectify and standardize the order of the thenardite mining industry, comprehensively implement market allocation of mineral resources, and seize the best opportunity to maximize the sharing of thenardite resources outside my country. * * Guidance on the development of the thenardite industry should be strengthened. While giving full play to the fundamental role of the market in allocating resources, * * In order to strengthen macro-guidance for the development of the thenardite industry, we should focus on the application of economic means, legal means and necessary administrative means to strengthen the regulation and guidance of the development of the thenardite industry. * * Supervision, testing, and law enforcement functions on the quality of Glauber's Salt products should be strengthened, standards should be strictly implemented, and unqualified products should not be allowed to enter the market, so as to effectively improve the overall technical level of the industry, standardize the order of market competition, and ensure the adjustment of the industry structure. In addition, a professional thenardite product import and export company should be established to develop the international market. Establish its own import and export company for the Glauber's Salt industry to specifically handle the export business of my country's Glauber's Salt. To reduce the consumption of domestic competition and multi-level export costs, after professional import and export companies are on track, they can set up offices abroad to more effectively stabilize and develop the international market.
Reply #42009-03-14
Could it be that the sales of Glauber's Salt are not good now? :Q
Reply #52009-03-14
The out-of-stock section of our factory is full of goods worth five yuan a ton, and no one is buying them.
Reply #62009-03-16
The Glauber's Salt in my factory is all given for free.
Reply #72009-07-21
In addition to giving it for free, have you considered selling it to some companies that need Glauber's salt? Just sell it to any type of company that uses Glauber's salt in production.

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