Two new rare earth extraction and separation technologies developed by rare earth have been implemented in Fujian Province

China's ionic medium-heavy rare earth resource reserves account for 80% of the world's total reserves, and medium-heavy rare earth production accounts for more than 95% of the world's total output. It is a strategic resource with absolute competitive advantage in China. Ion-type rare earth minerals are mainly distributed in Jiangxi, Guangxi, Fujian, Guangdong, Hunan and other provinces in southern China. Due to the dispersion of ion-type rare earth resources, low grade, and difficulty in extraction and separation, the leaching, enrichment, separation and purification processes of traditional ionic rare earth minerals have low recovery rate, high consumption, large amount of ammonia nitrogen or high-salt wastewater and serious wastes containing radioactive materials. Problems such as polluting the environment are major issues that have long been concerned.

In response to the resource and environmental problems faced by the rare earth industry, the Beijing Institute of Nonferrous Metals Research and the Rare Earth New Materials Co., Ltd. Professor Huang Xiaowei led the team to systematically carry out the basic theory research of rare earth green separation chemistry, and proposed to replace the alkali metal with calcium magnesium alkaline earth metal. Or ammonium, non-equilibrium centrifugal extraction instead of precipitation, enrichment, recovery and separation of rare earth and other new ideas, invented a new high-efficiency green extraction and separation technology of ionic rare earth ore, fully realized pollution reduction from the source, efficient recycling of water and materials Utilization is a brand new clean production process and equipment technology.

It mainly includes: (1) New technology and equipment for green high-efficiency leaching integration of ionic rare earth ore. Independent innovation developed an eco-friendly magnesium/calcium salt composite leaching technology, P507/P204 coupled centrifugal extraction and enrichment of rare earth new technology, and realized the industrial application of direct extraction and enrichment of low concentration rare earth leaching solution for the first time, and obtained high efficiency enrichment and no The dual effect of producing ammonia nitrogen wastewater and waste material containing radioactive materials. Industrial operation shows that the technology solves the problem of pollution of radioactive waste slag that has been plagued by ionic rare earth mining enterprises for more than 30 years. The recycling rate of magnesium salt wastewater and CO2 gas is greater than 90%; the process is shortened by 5 times; the total yield of rare earth is increased by 8-10 Percentage points; each new ton of rare earth oxides produced a profit tax of about 20,000 yuan, with significant environmental and economic benefits.

(2) A new process for extracting, separating and precipitating and recovering rare earth by magnesium bicarbonate. The pure magnesium bicarbonate solution prepared by circulation is used instead of liquid ammonia, liquid alkali or sodium carbonate for saponification organic phase extraction to separate rare earth elements and rare earth precipitation crystallization process, to achieve zero-ammonia nitrogen discharge, magnesium salt wastewater and CO2 closed-circuit recycling. And significantly reduce the production cost of rare earth. The technology was industrialized in Jiangsu Guosheng, Guangxi Guosheng Rare Earth Company and Gansu Rare Earth Company. In 2016, it won the first prize of China Nonferrous Metals Industry Science and Technology and the 18th China Patent Excellence Award; the new technology was included in the National Development and Reform Commission. “National key low-carbon technology catalogue”, Ministry of Science and Technology “Energy-saving and emission reduction and low-carbon technology achievements transformation and promotion list”, Ministry of Industry and Information Technology and Ministry of Environmental Protection “Water pollution prevention key industries cleaner production technology implementation plan”, etc., the wide application of new technologies Will vigorously promote the green development of the rare earth industry.

Plastic Bottle Caps Making Machines

This series of injection molding machine is mainly suitable for processing various bottle caps.

According to customer's production requirement, small size and middle size machine can be provided.

Also we have PET special machine to produce PET preforms.

Vertification of many year's market application, optimal combination configuration, stable, reliable and durable system with the characteristics of high efficiency, energy saving, low voice and strong power.

Program control adopts multiple CPU and high-end DSP chip, which guaranteed smooth and stable control property during high load processing.

BUlk-storage memory that can store many groups of technological parameter.

The application of USB can realize online updating, data export and simple operation.

Plastic Bottle Caps Making Machines,Full Automatic Plastic Bottle Cap,Pet Preform Injection Molding Making Machine,Bottle Cap Making Machine

Ningbo Tongyong Plastic Machinery Manufacturering Co. Ltd. , https://www.tongyongmachinery.com