من به دنبال

Producing photovoltaic-grade electronic hydrofluoric acid using anhydrous hydrogen fluoride as the raw material through distillation technology. The technology is highly mature, with an industrial facility capable of producing 20,000 tons annually already built and stably supplying the market. The product directly serves the photovoltaic solar cell and semiconductor manufacturing industries, used for silicon wafer cleaning and surface treatment. As global photovoltaic installed capacity continues to rise, localized supply of photovoltaic-grade hydrofluoric acid has become a priority direction for industrial development in many countries. Due to extremely high product quality control requirements (ppb-level impurity control), the process commissioning cycle is longer than that of conventional projects, with a full-process service cycle of approximately 6 to 12 months.

A highly confidential process technology that uses fluosilicic acid, a by-product of wet-process phosphoric acid production, as the raw material to produce hydrofluoric acid via concentration with concentrated sulfuric acid. According to technical archives, this technology is classified as strictly confidential, with successful engineering projects currently existing only in China. Its strategic significance lies in converting waste fluorine resources from the phosphate chemical industry into high-value fluorine chemical products, achieving deep coupling of two industrial chains while reducing fluorine-containing exhaust emissions. The right to use the technology is authorized by the leading team, and the owner must accept preliminary targeted technology development. Services include process packages, engineering design, and production guidance, with support for customized joint technology development available; the project cycle ranges from 3 to 18 months.

采用萤石(氟化钙)与浓硫酸及发烟硫酸(105%硫酸)反应的工艺路线，生产无水氢氟酸的全套工艺技术。技术成熟度高，已建成年产4万吨级的工业装置并长期稳定运行(据技术档案记载)。无水氢氟酸是整个氟化工产业的起点原料，下游可延伸至制冷剂、含氟聚合物、含氟医药中间体等。技术服务覆盖完整工艺包编制、基础与详细工程设计以及生产指导与人员培训，标准周期3至18个月。适合拥有萤石矿资源或计划布局氟化工产业链的投资者。

Starting with wet-process phosphoric acid with a concentration of over 52%, industrial-grade phosphoric acid is obtained through an extraction and purification process. The raffinate acid generated during the process serves as a high-quality raw material for ammonium polyphosphate (APP). The integration of these two processes enables the extension of the phosphorus resource value chain. It should be noted that this technical route involves certain technical barriers (as indicated in technical archives). Specialized technical adaptation and development are required for wet-process phosphoric acid from different sources, and the client must accept a customized joint development model. The full suite of services covers the preparation of the process package, preliminary design, construction drawing design, as well as training and guidance during the commissioning phase, with a cycle of approximately 3 to 18 months. This solution is recommended for clients who already have wet-process phosphoric acid production capacity and wish to extend into downstream high-value-added products.

A highly flexible production process for phosphate fertilizers capable of utilizing various raw materials, including wet-process phosphoric acid, raffinate acid, liquid ammonia, or urea, to produce two product forms: solid ammonium polyphosphate for agricultural use and liquid ammonium polyphosphate. The process design fully leverages low-cost by-products as feedstock, significantly reducing production costs. This technology has a proven track record of successful export and implementation in Serbia (according to technical archives), validating the feasibility of cross-border technical cooperation. As a new generation of high-concentration, slow-release phosphate fertilizer, ammonium polyphosphate demonstrates fertilizer efficiency advantages in precision agriculture and facility agriculture scenarios that are difficult for traditional phosphate fertilizers to match. Services cover the preparation of process packages, basic and detailed design, and technical management during the commissioning phase, with a cycle of approximately 3 to 18 months.

Using wet phosphoric acid with a concentration of 26% to 40% as feedstock, high-purity monopotassium phosphate (MKP) is produced in a single step via a liquid-liquid extraction process. This simultaneously yields ammonium chloride potassium (which can be directly used as a compound fertilizer ingredient) and low-concentration raffinate phosphoric acid. The technology is patent-protected, and three industrial-scale units have already been constructed domestically (according to technical records), ensuring stable and reliable product quality. MKP is one of the fastest-growing premium varieties in the global water-soluble fertilizer market, with a terminal selling price significantly higher than that of ordinary phosphorus fertilizers. The comprehensive utilization of by-products further optimizes overall economic efficiency. A prerequisite for technology transfer is that the owner must possess a large-scale compound fertilizer production capacity to absorb the by-products. Deliverables include the process package, design drawings, operation manuals, training materials, and patent licensing documents, with a service cycle ranging from 3 to 18 months.

For phosphate ore resources with low grade or high impurity content, this technology employs a dihydrate process route to achieve the industrial production of wet-process phosphoric acid. Its core advantage lies in its broad adaptability to raw materials, enabling the processing of various grades and types of phosphate rock, thereby reducing reliance on high-quality ore sources. The process technology represents an advanced level in the industry, with a mature and reliable technical solution. The service model is consistent with the hemihydrate-dihydrate method, starting with the preparation of the process package, followed by basic engineering design and construction drawing design, and finally providing technical management support that includes personnel training and on-site guidance. All design documents and training materials are delivered concurrently with the project, with a standard cycle of 4 to 18 months. It is recommended that overseas owners intending to develop the phosphate chemical industry under local phosphate ore resource conditions prioritize the evaluation of this technical route.

A complete process technology for producing industrial phosphoric acid using high-grade phosphate rock as raw material and adopting the semi-hydrate-dihydrate route, developed by the team's own technical force. This technology has a high degree of maturity, and currently 9 industrial units of different scales have been built and operated domestically (according to technical archives). The complete service covers four stages: process package preparation (output of complete technical solution and process flow), basic engineering design (preliminary design), detailed engineering design (construction drawing design), and technical management services (including systematic training of operating personnel and on-site production guidance). The full deliverables include process package documents, process description and flow diagrams, preliminary and detailed design drawings, operation procedure manuals and training materials. Standard service cycle ranges from 4 to 18 months. For overseas markets with rich phosphate rock resources but relatively weak phosphate chemical industry foundation, this technology possesses strong adaptability and economic viability.

Offering complete production technologies for sodium bicarbonate (baking soda) and food-grade ammonium chloride as extensions of the soda ash industry chain. The innovative design of the carbonation tower without a cooling section in the sodium bicarbonate production unit has been granted a patent by the China National Intellectual Property Administration (2019). Delivered projects cover sodium bicarbonate engineering with various capacity levels ranging from 30,000 to 200,000 tons per year (including scales such as 40,000 tons, 30,000 tons, 37,000-ton expansion, 50,000 tons edible grade, 100,000 tons/year Phase I, and 200,000 tons/year), as well as differentiated product projects such as 4,000 tons/year food-grade ammonium chloride, 50,000 tons/year ammonium chloride granulation, and 100,000 tons/year granular ammonium chloride. Deliverables include complete process package documents, engineering design drawings, operation manuals, and training materials, with a service cycle of approximately 3 to 18 months. This technical solution is particularly suitable for extending product lines and increasing added value based on existing soda ash production capacity.

This team has been deeply engaged in the soda ash industry for over 60 years (since 1957), ranking first in China for design capability in this field. The technical system comprehensively covers three major process routes: ammonia-soda process, combined alkali process, and natural soda process. Independently developed core technologies include: salt-alkali-calcium joint production process—injecting soda manufacturing waste liquid and residue into underground salt caverns for salt dissolution, desulfurization, and solid filling, which is a world first; horizontal belt vacuum filtration and energy-saving technology for soda ash—recognized by authoritative evaluation as reaching international advanced level and included in the National Key Energy-Saving and Low-Carbon Technology Promotion Catalog; as well as key technologies such as shift gas soda making, pressurized carbonation, solid-phase hydration重型碱, fluidized bed drying, self-returning alkali steam calciner, secondary jet ammonia absorption, and whole-system mother liquor balance interlock control. The team has obtained 7 invention patents and utility model patents, along with 9 industry-recognized proprietary technologies. Past performance encompasses 60 large-scale soda ash projects (based on complete project list statistics), with capacities ranging from 80,000 tons/year to 1,200,000 tons/year, including 3 overseas projects in Iran (20,000 tons/year, 20,000 tons/year, and 80,000 tons/year renovation respectively). Engineering design achievements have repeatedly won national and provincial-level Outstanding Engineering Design Awards (with total awards exceeding 40).