Purification process of copper smelting byproduct ammonium perrhenate
A by-product technology of ammonium perrhenate and ammonium perrhenate, applied in the preparation of rhenium compounds, rhenium compounds, inorganic chemistry, etc., can solve the problem of high ion content
Pending Publication Date: 2020-11-03
铜陵铜冠优创特种材料有限公司
7 Cites 2 Cited by
AI-Extracted Technical Summary
Problems solved by technology
View more
Method used
View more
Abstract
The invention discloses a purification process of a copper smelting byproduct ammonium perrhenate. The process comprises the following six steps: dissolving, vacuum filtration, resin exchange, evaporation concentration, freezing crystallization and filtration and drying. By regulating the pH value of a crude ammonium perrhenate solution, the dissolving concentration, dissolving temperature, crystallization time, crystallization temperature, stirring rate and special resin are selected, thus preparing the ammonium perrhenate with purity being higher than 99.999%. The problem that the content ofsulfur, arsenic, selenium, copper, iron, lead, zinc and other ions in the copper smelting byproduct ammonium perrhenate is high is solved, the impurities are effectively removed, 73 impurity elementsin the copper smelting byproduct ammonium perrhenate reach 1-5 ppm or below, the recovery rate of ammonium perrhenate is guaranteed, and the recovery rate of ammonium perrhenate is 95% or above.
Application Domain
Rhenium compounds preparation
Technology Topic
ArsenicLead zinc +5
Image
Examples
- Experimental program(1)
Example Embodiment
PUM


Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.