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Method for preparing anhydrous neodymium chloride under open system

A technology of neodymium trichloride hexahydrate and neodymium chloride, which is applied in chemical instruments and methods, inorganic chemistry, rare earth metal compounds, etc., and can solve problems such as vacuum environment preparation process and complexity

Inactive Publication Date: 2013-07-10
HEILONGJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology uses two chemicals called reactants: ammonia (Nb2) or nitrogen dioxides (NO) which are combined into one compound called 1-amino-1 ,2-dimethyl-4-(trifluoromthane-2)- sulfonate (AmONa). These reagents act like solvents for water molecules while still being able to form hydrides similar to other organics such as acetone. By combining these materials under specific temperatures and pressure combinations they create pure gases containing only certain elements without any unwanted side products. Additionally, this method allows for easy production of highly purified rare earth metals by avoiding contaminating harmful metal residues during manufacturing processes.

Problems solved by technology

This patented technical problem addressed in this patents relates to how to prepare pure (Nd) magnetic materials for use in various industries such as electronics, medical devices, and defense systems. Traditional methods involve complex processes involving high temperatures and pressure environments that are difficult to control accurately during production due to their complexity.

Method used

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  • Method for preparing anhydrous neodymium chloride under open system
  • Method for preparing anhydrous neodymium chloride under open system
  • Method for preparing anhydrous neodymium chloride under open system

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specific Embodiment approach 1

[0017] Specific embodiment one: a kind of method for preparing anhydrous neodymium chloride under the open system of this embodiment, is to carry out through the following steps:

[0018] 1. Preparation of neodymium trichloride hexahydrate from neodymium oxide: a. Take neodymium oxide and place it in a 50°C oven for 50-70 minutes to obtain pretreated neodymium oxide; b. Add distilled water to the pretreated neodymium oxide, mix uniform; then under the condition of a constant temperature water bath at 70°C, add hydrochloric acid with a mass percentage of 36.6%, stir for 1-2 hours, then filter and keep the filtrate; c, under the condition of a water bath at 75°C, heat the filtrate for 5-8 hours , then washed with acetone, then filtered, then dried and ground to obtain neodymium trichloride hexahydrate; wherein the mass volume ratio of pretreated neodymium oxide to distilled water is 1g:5-10mL, and the pretreated neodymium oxide and distilled water The mass percentage composition...

specific Embodiment approach 2

[0026] Embodiment 2: This embodiment differs from Embodiment 1 in that in step 1, neodymium oxide is placed in an oven at 50° C. for 60 minutes. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0027] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the mass volume ratio of pretreated neodymium oxide to distilled water in step 1 is 1g: 8mL. Other steps and parameters are the same as Embodiment 1 or 2.

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Abstract

The invention discloses a method for preparing anhydrous neodymium chloride under an open system, which relates to a method for preparing anhydrous neodymium chloride and aims to solve the problems of vacuum environment requirement and complex preparation process of the traditional method for preparing the anhydrous neodymium chloride. The method for preparing the anhydrous neodymium chloride under the open system, disclosed by the invention, is finished through the following steps of: firstly, preparing neodymium chloride hexahydrate by using neodymium oxide; and secondly, preparing neodymium chloride by using the neodymium chloride hexahydrate: horizontally spreading NH4Cl on a reaction boat; then, horizontally spreading the neodymium chloride hexahydrate on the NH4Cl, then roasting, reacting and then grinding to obtain the anhydrous neodymium chloride. The method is applied to the field of chemical industry.

Description

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Claims

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Application Information

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Owner HEILONGJIANG UNIV
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