Method for treating molybdenum calcine acid pickling wastewater
A calcine acid and waste water technology, applied in water/sewage treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc. high-quality effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0022] Example 1
[0023] The treatment method of the molybdenum calcine pickling wastewater of the present embodiment comprises the following steps:
[0024] Step 1. Put 1.5m 3 The molybdenum calcine pickling wastewater was added to the reactor, and while stirring, adding saturated sodium hydroxide solution to adjust the pH of the molybdenum calcine pickling wastewater to be 7, then slowly adding 1500 mL of ammonium sulfide solution with a mass concentration of 8% and stirring for 15min, static After 0.5h, mixed slurry A was obtained; the molybdenum content in the molybdenum calcine pickling wastewater was 7.25g / L, and the pH was 2;
[0025] In step 2, the mixed slurry A obtained in step 1 is subjected to vacuum filtration to obtain a separation liquid, and the molybdenum content in the separation liquid is detected to obtain that the molybdenum content in the separation liquid is 0.393 g / L, and then the separation liquid is adjusted. To pH 4, add 10L saturated ferric chlor...
Example Embodiment
[0028] Example 2
[0029] The treatment method of the molybdenum calcine pickling wastewater of the present embodiment comprises the following steps:
[0030] Step 1, put 1m 3 The molybdenum calcine pickling wastewater was added to the reactor, and while stirring, a saturated sodium hydroxide solution was added to adjust the pH of the molybdenum calcine pickling wastewater to be 7, and then 1000 mL of ammonium sulfide solution with a mass concentration of 8% was slowly added and stirred for 30 min. After 1 hour, mixed slurry A was obtained; the molybdenum content in the molybdenum calcine pickling wastewater was 10 g / L, and the pH was 2;
[0031] In step 2, the mixed slurry A obtained in the step 1 is subjected to vacuum filtration to obtain a separation liquid, and the molybdenum content in the separation liquid is detected to obtain that the molybdenum content in the separation liquid is 0.27g / L, and then the separation liquid is adjusted. To pH 5, add 1.5L saturated ferri...
Example Embodiment
[0034] Example 3
[0035] The treatment method of the molybdenum calcine pickling wastewater of the present embodiment comprises the following steps:
[0036] Step 1, put 0.8m 3 The molybdenum calcine pickling wastewater was added to the reaction kettle, and while stirring, sodium hydroxide was added to adjust the pH of the molybdenum calcine pickling wastewater to be 7, and then 800 mL of ammonium sulfide solution with a mass concentration of 8% was slowly added and stirred for 20 min, and allowed to stand for 0.5 Mixed slurry A was obtained after h; the molybdenum content in the molybdenum calcine acid-washing wastewater was 9.8 g / L, and the pH was 2;
[0037] In step 2, the mixed slurry A obtained in step 1 is subjected to vacuum filtration to obtain a separation liquid, and the molybdenum content in the separation liquid is detected to obtain that the molybdenum content in the separation liquid is 0.40 g / L, and then the separation liquid is adjusted. To pH 5, add 2.5L of...
PUM
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap