Chemical beneficiation and metallurgical combined process of lithium brine
Lithium salt lake sedimentary deposits are an important source of lithium in the United States, Chile, the Soviet Union, our country and Bolivia, these resources are very rich. The extraction of lithium from the deposited lithium deposit is by chemical or chemical-flotation combination.
As early as 1936, the United States used a chemical-flotation process to produce lithium salts from the Sears Lake brine. Sears Lake is located in California, USA. Its brine contains various valuable elements such as potassium, sodium, boron and lithium. Lithium is recovered as a by-product. The main process of the process is: pumping the brine to the preheater and heating it to 50 ° C, and then sending it to a digester with strong circulation and convection. The temperature of the digester is 500 ° C in one chamber and 85 ° C in two chambers. Three chambers at 120 °C. After cooking, KCl, Na 2 CO 3 , Na 2 SO 4 and Li 2 NaPO 4 are crystallized from the brine, followed by hydraulic classification. The KCl crystal is coarse and enters the underflow, Na 2 CO 3 •Na 2 SO 4 and Li 2 NaPO 4 It enters the overflow in suspension and is concentrated and filtered into the filter cake. Thereafter, the filter cake was adjusted to a thick slurry, which was treated with a fatty acid and then dissolved by a hot alkali. As a result, most of Na 2 CO 3 •Na 2 SO 4 was dissolved, and the surface of the Li 2 NaPO 4 crystal was insoluble due to the coverage of the fatty acid soap, and was added to the slurry. The foaming agent was passed through the air, Li 2 NaPO 4 was foamed in a flotation machine, and the tailings were further processed to recover soda. The foam concentrate is fed to the sedimentation tank and heated to 60 ° C, and the Na 2 CO 3 •Na 2 SO 4 is dissolved again, and finally filtered and dried to obtain a lithium concentrate containing 020-22% of Li 2 , and the recovery rate is 90. %.
Another process is the chemical method, which means that the brine is evaporated on the drying field, the sodium salt and the potassium salt are precipitated, the lithium chloride concentration is increased to about 6%, and then it is sent to the factory to convert the lithium chloride by the soda ash method. A solid product of lithium carbonate.
Plastic 3D Printing is one of the fastest and most cost-effective methods available for the iterative design, prototyping, and production of custom parts. Rather than the material being removed from stock, as historically done with subtractive manufacturing processes such as CNC Machining, 3D printing works by repeatedly layering small amounts of plastic to build a design from the ground up.
First, when choosing to use plastic to 3D print your project, you will quickly notice that you have the choice among various plastic materials with different properties.
Pros
Affordable to the average person
Fast prototyping
Creates sturdy and lightweight parts
Reduced waste compared to Injection Molding
Ability to print on demand
Fast production for small parts runs
Unlimited designs can be made
Excellent for creating custom products
Easy to access for small businesses and individuals
Not limited to plastics, metals are also used
Machines available on levels from hobby to industrial
Promotes creativity and learning in children
3D Printing Applications for Plastics
Prototyping
Solutions that streamline workflow to accelerate digital design, create appearance models and build functional prototypes.
Production
Additive manufacturing at scale for plastic parts is now a reality, with the productivity, durability, repeatability, and lower total cost of operation manufacturers require.
Investment Casting
Accelerate the delivery of high-quality metal products and casting patterns with 3D printed wax and SLA casting patterns.
Jigs and Fixtures
Produce accurate jigs and fixtures with 3D printing to provide a fast and cost-effective way to advance your manufacturing process.
Plastic 3D Printing,Versatile Plastic 3D Printing,Plastic 3D Printing Service,Professional Plastic 3D Printing
Suzhou FCE precision electronics Co., LTD , https://www.fukeyifcesz.com