Method for preparing magnesium hydrate nano powder by active acid leaching nickel-containing serpentine
A magnesium hydroxide and nano-powder technology, applied in the direction of magnesium hydroxide, etc., can solve the problems of purification, increased cost of impurity removal, high acidity of leaching solution, high leaching cost, etc., and achieve shortened preparation cycle, good product quality and shortened reaction time Effect
Active Publication Date: 2011-01-05
新疆世全黄金矿业股份有限公司
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the above-mentioned conventional sulfuric acid leaching process, the acidity of the leaching solution is high, and the leaching cost is relatively high, and a large amount of alkali is consumed in the purification treatment process, resulting in an increase in the cost of purification and impurity removal
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
Embodiment 2
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a method for preparing magnesium hydroxide nano powder through activation and acid leaching of nickel-containing serpentine, which comprises: adopting the nickel-containing serpentine as a raw material and a sulfuric acid as a leaching agent, removing iron by an amarillite method, removing heavy metals by a vulcanization method, adopting a NaOH solution for neutralizationand nickel deposit, and adopting an oxidant and an ammonia water solution to adjust the pH value and perform aging, filtration and demanganization; and adopting ammonia water or a sodium hydroxide solution as a precipitant and anhydrous alcohol as a stabilizer and dehydrant, and performing ultrasonic chemical precipitation reaction at a temperature of between 30 and 55 DEG C; and preparing the magnesium hydroxide nano powder after heat insulation, aging, centrifugal separation, washing and microwave drying, wherein the particle diameter of the magnesium hydroxide nano powder is between 20 and50 nanometers, and particles of the magnesium hydroxide nano powder are uniformly distributed.
Description
Method for preparing magnesium hydroxide nanopowder by activated acid leaching of nickel-containing serpentine 1. Technical field The invention relates to a method for preparing magnesium hydroxide nanopowder by activated acid leaching of nickel-containing serpentine, belonging to the technical field of powder metallurgy 2. Background technology my country is very rich in serpentine resources, with a huge amount of mineral deposits, good texture and most of the ores contain valuable resources such as nickel and magnesium. Although serpentine mines have been well developed and utilized in recent years, the overall research level is not high and is still in its infancy. Serpentine is a high magnesium mineral, its main components are: MgO43.6%, SiO243.3%, H2O13.1%. Serpentine ore can be used as an important mineral source for refractory materials and valuable elements such as Mg, Ni and Pd. Those with higher magnesium content can be used to extract magnesium metal, and those...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C01F5/20
Inventor 宋宁杜景红陈为亮严继康严玉环姚云
Owner 新疆世全黄金矿业股份有限公司