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188results about How to "Reduce package" patented technology

Beneficiation method for high-oxidation-rate copper-molybdenum paragenic ores

The invention discloses a beneficiation method for high-oxidation-rate copper-molybdenum paragenic ores. The beneficiation method comprises the following steps: (1) crushing: adopting a crusher to crush and screen raw ores, returning the raw ores with a particle size of (+)3mm to crush until the particle size of all raw cores reaches (-)3mm level; (2) carrying out ore grinding: adding the crushed raw ores with the particle size of (-)3mm into raw ore grinding equipment to carry out closed-hoop ore grinding operation, adding an activator with concentration being 1000-3000g/t and a vulcanizing agent with concentration being 250-900g/t into a grinder for grinding the raw cores until raw cores with the particle size of (-)0.075mm account for 55-80%; (3) carrying out primary flotation operation; (4) carrying out flotation scavenging operation; (5) carrying out flotation concentration operation; and (6) carrying out strong magnetic separation operation. The beneficiation method can be adopted to carry out beneficiation enrichment and recovery on copper oxide minerals and molybdenum oxide minerals in the high-oxidation-rate copper-molybdenum paragenic ores so as to obtain high-quality qualified copper concentrate and relatively enriched molybdenum middlings which can be used as raw materials for producing an ammonium molybdate product by chemical wet-process leaching, so that molybdenum oxide resources in the ores are recycled.
Owner:INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI

Physical concentration and phosphorus reduction method for skarn-type high-phosphorus molybdenum ore

The invention discloses a physical concentration and phosphorus reduction method for a skarn-type high-phosphorus molybdenum ore. The physical concentration and phosphorus reduction method comprises the following steps of (1) crushing, namely crushing raw ores by using a crusher, sieving, and returning a +3mm-grade raw ore to crush until the particle size of the raw ore is up to the -3mm grade; (2) grinding the ores, namely adding the crushed -3mm-grade raw ore into raw ore grinding equipment to carry out closed-circuit ore grinding operation, meanwhile, adding 500-1000g / t of water glass and 250-800g / t of a phosphate mineral inhibitor into a grinding machine, and grinding the raw ore until the particle size is up to the -0.075mm grade and the phosphorus content is up to 55-75%; (3) carrying out roughing operation; (4) carrying out scavenging operation; (5) regrinding a roughed molybdenum concentrate, namely adding 100-280g / t of a sulfur inhibitor and 150-300g / t of a phosphate mineral inhibitor to regrind the roughed molybdenum concentrate in roughed molybdenum concentrate regrinding equipment until the particle size is up to the -0.045mm grade and the phosphorus content is up to 70-95%; and (6) carrying out fine flotation operation. By using the physical concentration and phosphorus reduction method, the phosphorus content of a molybdenum concentrate product can be reduced to be lower than the standard, and a high-quality molybdenum concentrate product can be obtained.
Owner:INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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