4 results about "Hydrometallurgy" patented technology

The invention provides a mineral separation and enrichment method for a primary scandium ore. The method comprises the steps of crushing, ore grinding, low-intensity magnetic separation, high-intensity magnetic roughing and scavenging, concentrate regrinding, high-intensity magnetic concentration and the like. A scandium concentrate obtained by using the method disclosed by the invention is subjected to wet-metallurgy scandium extraction, so that the scandium ore resource becomes a developable and utilizable resource, the production efficiency of wet-process scandium extraction can be effectively increased, the consumption of various auxiliary materials such as acid and alkaline required by wet-process scandium extraction and the production cost can be remarkably reduced, and environment pollution caused by a wet-process scandium extraction process is reduced. Meanwhile, the produced tailings can be recycled in the industries such as building materials, the chemical industry, ceramics and glass, so that the comprehensive recycling value of the resource is increased, and the ecological and environment protection influences caused by tailing accumulation and storage are reduced.

The invention relates to an extraction method, and belongs to the technical field of hydrometallurgy. Salt generated by a saponifying agent in a solvent extraction and separation process is prepared into a regenerated saponifying agent and/or regenerated acid to be reused. The extraction method has the advantages that the regenerated saponifying agent is good in activity, no impurities are introduced into an extraction system any more, impurities carried by a disposable saponifying agent into the extraction system are avoided, the impurities of iron, silicon, heavy metal and the like in a product are reduced, the quality of the product is improved, resources are saved, and the cost is reduced. The defect that a large amount of salt-containing sewage is discharged while large amounts of acid and alkali are consumed during solvent extraction is overcome. The extraction method is simple, easy to control, convenient to use, safe and reliable and facilitates industrial production.

The invention belongs to the technical field of metal ion detection in mine and environment and particularly relates to an on-line detector for molybdenum concentration in a water solution. The detector is used for detecting the molybdenum concentration in a uranium and molybdenum mine hydrometallurgy process in our country. The detector includes a circuit system and a chemical flow path system. The circuit system is disposed in the upper part of a machine case and includes a power supply, a microcomputer system, a control and driving circuit, a photometric detection circuit, and a signal output circuit; the chemical flow path system is disposed in the lower part of the machine case and includes a peristaltic pump and an electromagnetic valve. The microcomputer system outputs a control signal for driving the peristaltic pump and the electromagnetic valve to work by means of the control and driving circuit; a to-be-tested solution generates a light absorption signal through the photometric detection circuit; the microcomputer system collects the signal and calculates and converts the signal into a light absorbance value; and on the basis of the light absorbance value, the concentration of a to-be-tested substance in the sample is calculated; finally the signal output circuit sends a detection result and an operating state signal to an external device so as to achieve remote monitoring. The on-line detector can satisfy detection demand and long-term monitoring demand in a complex environment such as mine and the like.