Rapid nontoxic gold extracting method
A fast and gold-extracting technology, applied in the field of hydrometallurgy, can solve problems such as difficult to achieve extraction rate, adverse impact on environmental protection, long gold leaching time, etc., achieve fast desorption speed, reduce gold extraction cost, and simple regeneration
Inactive Publication Date: 2008-04-09
梁增扬
View PDF0 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The disadvantages of the cyanidation method are: ①It is highly toxic and has a bad impact on environmental protection
② Gold leaching time is long
③ For some
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
[0038] Example Data Summary Table
[0039] Withdrawal method
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 wet gold extraction method, and is a quick and non-toxic gold extraction method. The method uses the solution of sodium bromate, sodium chloride and vitriol as the gold leaching solution, polyurethane foam as the substance to absorb gold, sodium sulfite solution as a desorption agent, oxalic acid as a reducing agent, hydrochloride solution as recycling agent of polyurenthane foam, extract gold from oxide ore with the sulfur content of no more than 2% and gold concentrate after roasting. The method of the invention is non-toxic and the gold leaching speed is a few to a dozen times as fast as that in cyannidation.
Description
technical field [0001] The present invention relates to hydrometallurgy, more specifically the present invention is a method for extracting gold by wet method. Background technique [0002] The existing gold leaching technology is commonly used. At present, most of the gold industry adopts the cyanide method to extract gold. The advantages of the cyanide method are: ① low cost, ② gold can be dissolved at normal temperature and pressure, and the gold complex is stable. ③ The technology is simple and easy to master, and has wide adaptability. Whether it is simple pool leaching for ordinary people or large-scale heap leaching, the stirring full peat slurry method in regular gold dressing and metallurgy factories all use cyanide method to extract gold. The disadvantages of cyanidation are: ①It is highly toxic and has a bad impact on environmental protection. ② Gold leaching takes a long time. ③ For some harmful substances; such as arsenic, copper oxide, and other harmful subst...
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 IPC IPC(8): C22B11/00C22B1/02C22B3/08C22B3/24C22B3/44
CPCY02P10/20
Inventor 梁增扬
Owner 梁增扬
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap