Supercharge Your Innovation With Domain-Expert AI Agents!

Method for fast recovering precious gold metal from gold paste

A technology for recovering gold and gold paste, applied in the direction of improving process efficiency, can solve problems such as difficulty in recovering gold, and achieve the effects of short recovery cycle, high efficiency and strong operability

Inactive Publication Date: 2017-12-22
SINO PLATINUM METALS CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to recover gold from gold paste

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 more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take 5g of gold paste after drying, 25g of recovered auxiliary materials (sodium carbonate: 12g, boric acid: 12g, reducing agent: 1g), mix them and place them in a crucible, place the crucible in a muffle furnace, and leave the room temperature for 3 hours Raise to 1300°C and keep it warm for 30 minutes. When the crucible is cooled to 600-700°C with the furnace, take out the crucible and place it in water. The crucible will burst, and gold and impurity components (glass) will be separated due to different shrinkage rates, and pure gold will be obtained. ingot;

Embodiment 2

[0021] Take 5g of gold paste after drying, 31g of recovered auxiliary materials (sodium carbonate: 15g, boric acid: 15g, reducing agent: 1g), mix them and place them in a crucible, place the crucible in a muffle furnace, and heat it from room temperature for 3 hours Raise to 1300°C and keep it warm for 30 minutes. When the crucible is cooled to 600-700°C with the furnace, take out the crucible and place it in water. The crucible will burst, and gold and impurity components (glass) will be separated due to different shrinkage rates, and pure gold will be obtained. ingot;

Embodiment 3

[0023] Take 10g of gold paste after drying, 62g of recovered auxiliary materials (sodium carbonate: 30g, boric acid: 30g, reducing agent: 2g), mix them and place them in a crucible, place the crucible in a muffle furnace, and heat it from room temperature for 3 hours Raise to 1300°C and keep it warm for 30 minutes. When the crucible is cooled to 600-700°C with the furnace, take out the crucible and place it in water. The crucible will burst, and gold and impurity components (glass) will be separated due to different shrinkage rates, and pure gold will be obtained. ingot;

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

No PUM Login to View More

Abstract

The invention discloses a method for fast recovering the precious gold metal from gold paste. The method comprises the three steps of pretreatment, recovering accessory adding for high-temperature melting, and metal-impurity separation. The method provided by the invention is simple in process and has the advantages of short recovering period, high efficiency, low cost and high operability, ingredients of recovering accessories are designed autonomously, gold in the gold paste is recovered by adopting a high-temperature melting mode, the problems that ingredients of the gold paste are complex, and the recovering period is long are solved, and it is guaranteed that the gold is efficiently and fast recovered.

Description

technical field [0001] The invention belongs to a method for rapidly recovering gold from gold paste, and belongs to the field of electronic paste of information function new materials. Background technique [0002] Gold paste is a paste-like electronic material composed of gold, organic binders, inorganic binders and other additives. Gold is generally gold powder with a particle size of several hundred nanometers to several microns. Agents include resins, organic solvents, thixotropic agents, leveling agents, etc. Inorganic binders are generally composed of glass or oxides, and other additives are substances added according to performance requirements. The composition of the gold paste is complex, which is a complex mixture of organic and inorganic substances, metals and non-metals; at the same time, the gold content is also uncertain, the lower gold content can be as low as 30%, and the higher can reach more than 90%. Therefore, it is difficult to recover gold from gold p...

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
no application Login to View More
IPC IPC(8): C22B7/00C22B11/02
CPCC22B7/001C22B11/025Y02P10/20
Inventor 罗慧李世鸿梁云李文琳刘继松龚恬洁俞建树
Owner SINO PLATINUM METALS CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com