Superfine silver powder and calcium pyruvate joint production method
A joint production technology of calcium pyruvate, applied in carboxylate preparation, organic chemistry, etc., can solve the problems of troublesome treatment process, high cost of hydroquinone, large feeding ratio of reducing agent, etc., achieve safety and environmental protection in the production process, and reduce waste The effect of material production and production cost reduction
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0041] 12.6g 40% industrial methylglyoxal (0.07mol) was diluted with 60mL deionized water into a concentration of 1.0mol / L methylglyoxal solution; 5.9 g chemically pure sodium hydroxide (0.14mol) was dissolved in 134mL deionized water to obtain 1.0mol / L sodium hydroxide solution; dissolve 17.0g silver nitrate reagent (0.1mol) in 80mL deionized water, and dilute to obtain 100mL 1.0mol / L silver nitrate solution.
[0042] Add aceglyoxal solution, sodium hydroxide solution and silver nitrate solution dropwise into a stirred 500mL glass reactor at the same time, black silver crystal nuclei are formed immediately, stop feeding for 10 minutes, when the precipitate gradually turns gray and white, continue to add For the raw material solution, the dropping rate is controlled to keep the precipitate generated in the reaction solution gray, maintain the pH of the reaction solution at 10-11 and the reaction temperature at 25-30° C., and the addition is completed in about 30 minutes. Afte...
Embodiment 2
[0047] Dilute 10.8g of 40% industrial methylglyoxal (0.06mol) with 50mL of deionized water, add 0.1g of oleic acid dispersant to obtain a solution of methylglyoxal with a concentration of 1.0mol / L containing dispersant; oxidize 5.1 g of chemically pure hydrogen Dissolve sodium (0.12mol) in 115mL deionized water to obtain a 1.0mol / L sodium hydroxide solution; dissolve 17.0g silver nitrate reagent (0.1mol) in 80mL deionized water and dilute to obtain 100mL 1.0mol / L silver nitrate solution .
[0048] Add aceglyoxal solution, sodium hydroxide solution and silver nitrate solution dropwise into a stirred 500mL glass reactor at the same time, black silver crystal nuclei are formed immediately, stop feeding for 5 minutes, when the precipitate gradually turns gray, continue to add For the raw material solution, the dropping rate is controlled to keep the precipitate formed in the reaction solution as off-white, and the pH of the reaction solution is maintained at 9-10 and the reactio...
Embodiment 3
[0051] Dilute 9.0g 40% industrial aceglyoxal (0.05mol) with 50mL deionized water, add 0.05g sodium dodecylsulfonate dispersant to obtain a dispersant-containing concentration of 1.0mol / L methylglyoxal solution; 5.1 g chemically pure sodium hydroxide (0.12mol) was dissolved in 115mL deionized water to obtain a 1.0mol / L sodium hydroxide solution; 17.0g silver nitrate reagent (0.1mol) was dissolved in 80mL deionized water and diluted to obtain 100mL 1.0mol / L silver nitrate solution.
[0052] Add aceglyoxal solution, sodium hydroxide solution and silver nitrate solution dropwise to the 500mL glass reactor with stirring at the same time, the dropping rate is controlled to keep the precipitate generated in the reaction solution as off-white, and maintain the pH of the reaction solution at 10-11 and the reaction temperature 25-30°C, the addition was completed in about 20 minutes. After the feeding is completed, raise the temperature to 40-50°C, and continue to stir and react for 0....
PUM
Property | Measurement | Unit |
---|---|---|
The average particle size | aaaaa | aaaaa |
Tap density | aaaaa | aaaaa |
The average particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com