Name of the report: Inner Mongolia Alashanyouqi nickel- cobalt ore smelting test report report format: word
Completion: July 2007 Publisher: Guo Changqing guidance of experts: exchanging views Gong Meiling Project Leader: Lee Tin report Pages: Preface beginning Total 8
Introduction to the report:
Completion: July 2007 Publisher: Guo Changqing guidance of experts: exchanging views Gong Meiling Project Leader: Lee Tin report Pages: Preface beginning Total 8
Introduction to the report:
Foreword:
Entrusted by Inner Mongolia XXX Company, Xi'an Tianzhou Mining Technology Development Co., Ltd. conducted a smelting test on the Alashanyouqi nickel-cobalt mine in Inner Mongolia from August 2 to September 5, 2007, with the aim of The development and utilization of the deposit provides a scientific basis.
Principal sent two test samples, wherein 1 # ore containing nickel-cobalt magnet serpentinite (including magnets containing serpentinized harzburgite), by the original rock of olivine, augite times varying decomposition products, while A small amount of powdery magnetite is precipitated, and in the serpentine aggregate, the fiber serpentine microfibrous aggregate is irregularly veined. The magnetized serpentine-type nickel pyrite ore is formed in the shape of an island, and the olivine is completely formed into a grid shape and a checkerboard shape. There is no nickel-containing sulfide in the serpentine ore type. The ore grade is extremely low. Ni 0.20%, Co 0.011%, and S 0.064% in the ore. Another 2 # nickel-cobalt ore is a magnetized serpentine-type pentlandite ore (serpentine ore-like rhombochite peridotite-type nickel pyrite ore), serpentine consists of leafy, fibrous serpentine The composition of the aggregates, the olivines are island-shaped, and the formation is completely meshed. Nickel pyrite is semi-white in shape and fine in shape, and is individually rounded and melted. The serpentine ore type has a low sulfide content of nickel. The grade of the main mineral nickel-cobalt sulfur is low, and the ore grades are 0.20%, Co 0.011%, and S 3.04%.
According to the ore characteristics of the mine, the experimental study on 1 # and 2 # nickel-cobalt ore was carried out. Physical beneficiation using conventional methods of nickel and cobalt metal were enriched by the test method does not study physical beneficiation metal-rich nickel-cobalt, and thus chemical (hydrometallurgical) beneficiation methods, recovery of nickel and cobalt metals. The experimental research proves that the leaching rate of nickel-cobalt ore leached by sulfuric acid and hydrochloric acid is higher. The leaching rate of 1 # nickel-cobalt ore is 81.84%, the leaching rate of Co is 71.79%, and the grade of chemical nickel-cobalt concentrate is 15.14% and Co 0.73%. , total metal recovery rate of Ni 70%, Co 60%, Mg 50%; 2 # nickel-cobalt Ni leaching rate of 79.97%, Co leaching rate of 68.26%, chemical nickel sulphide concentrate grade Ni 15.14%, Co 0.73%, metal The total recovery was 69.31%, Co 58.55%, and Mg 50%.
Through experiments, it is determined that the nickel-cobalt ore is leached with hydrochloric acid to extract nickel-cobalt-neutralized water to remove iron-sulfided precipitated nickel-cobalt-carbonated precipitated magnesium . in conclusion:
1. According to the characteristics of the nickel-cobalt ore, conventional nickel ore metal can not be enriched by conventional physical beneficiation method, and qualified products cannot be obtained.
2. According to the characteristics of the nickel-cobalt ore, a large number of scientific researches on the smelting process were carried out, and finally the chemical (water smelting) smelting process was selected to bring the nickel-cobalt deposit back to life.
3. The nickel-cobalt ore was tested by chemical (water smelting) beneficiation process. The leaching rate of nickel in 1 # nickel-cobalt ore was 81.84%, the leaching rate of cobalt was 71.79%, and the leaching rate of magnesium was 55.33%. The nickel in 2 # nickel-cobalt ore The leaching rate was 79.97%, the cobalt leaching rate was 68.26%, and the magnesium leaching rate was 57.48%.
4. The final product chemical nickel sulfide cobalt concentrate: nickel grade 15.14%, cobalt grade 0.73%. Chemical magnesite powder: 20% magnesium (magnesium oxide MgO ≥ 33%). Or chemical magnesium oxide 55.65.
5. The production process of this test is leaching of nickel-cobalt ore with sulfuric acid and hydrochloric acid. The leaching rate of sulfuric acid is 1 # ore nickel is 81.84%, cobalt is 71.79%, 2 # ore nickel is 79.97%, and cobalt is 68.26%. The only shortcoming is that in the latter process, the solution is sticky when purifying iron and sulfide-precipitated nickel-cobalt, clarification, slow filtration rate, and difficult to use in production. The leaching rate of the hydrochloric acid solution is slightly higher than the leaching rate of the sulfuric acid solution, and the iron removal is purified, and the nickel sulfide is sulfided and precipitated easily. The nickel-cobalt ore is recommended to be: a process of leaching nickel-cobalt ore-neutralized water to remove iron-sulfided precipitated nickel-cobalt-carbonated precipitated magnesium. The process technology is advanced, reliable, and economically reasonable. It is suitable for treating polymetallic symbiotic ore, which is conducive to comprehensive recovery of low-grade non-ferrous metals. It is a better process for making full use of mineral resources. Ab End Cap Gluing Machine,End Cover Gluing Machine,Ab End Cover Gluing Machine
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