The project is aimed at the brown iron -type laterite nickel ore with low nickel content, high iron content, rich in chromium and aluminum , as well as high value and comprehensive utilization problems. It has developed a new process of alkali and acid double-cycle clean production for the first time in the world. The comprehensive utilization of nickel, iron, chromium, cobalt, etc. in the brown iron type laterite nickel ore is realized, and the output and discharge of waste are reduced from the production source, and the clean production of the process is realized.
The main technical features and innovations are as follows: (1) The first development of laterite nickel ore alkali roasting - a new process for efficient reduction and chromium extraction of sodium chromate solution; (2) the first development of brown iron type laterite nickel ore and alkali leaching and chromium extraction The new process of high-efficiency extraction of nickel and cobalt from slag and the study of leaching mechanism were completed. (3) The new process of homogeneous precipitation of nickel hydroxide and leaching agent to produce calcium sulfate whisker was first developed.
The total recovery of nickel was more than 93%, the iron concentrate was more than 62%, the total iron recovery was more than 97%, the total chromium recovery was more than 94%, the total cobalt recovery was more than 90%, and the alkali acid regeneration cycle utilization rate was obtained. More than 90% of the results. It has the advantages of wide range of raw materials, good comprehensive utilization of resources, low reagent consumption, mature and reliable equipment.
The expert group composed of academicians and well-known professors highly praised the process. It is unanimously concluded that the high-efficiency comprehensive utilization of the clean-production production process of the brown iron-type laterite nickel ore is a major original innovation, and the alkali and acid double-cycle clean production process is novel. The main technical indicators of nickel, iron, chromium and cobalt have reached the world's leading level.
Stainless Steel Square Wire Mesh
Here are some common uses for stainless steel square wire mesh:
1. **Industrial Filtration**: Stainless steel square wire mesh is used in industrial filtration processes where it can separate liquids or gases from solids, such as in oil refining, chemical processing, and food manufacturing.
2. **Construction**: In construction, it serves as a barrier material, providing support and protection. It can be used in concrete reinforcement, window screens, and architectural designs.
3. **Agriculture**: In agriculture, it is used for animal fencing, bird control, and protecting crops from pests.
4. **Security**: For security purposes, it is used in the construction of fences and gates to provide a barrier against unauthorized access.
5. **Exhaust Systems**: In exhaust systems, it is used to filter out particulates and improve air quality.
6. **Aquaculture**: In fish farming, it is used to create barriers that prevent fish from escaping while allowing water flow.
7. **Art and Decorative Purposes**: Due to its aesthetic appeal, it is also used in artistic and decorative applications like wall art, furniture, and sculptures.
The choice of stainless steel grade (such as 304, 316L) depends on the specific application, with different grades offering varying levels of corrosion resistance, strength, and durability. Stainless steel square wire mesh can have different wire diameters and opening sizes, tailored to meet specific performance requirements.
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