Method for producing mixed long carbon chain dibasic acid
A technology of long-chain dibasic acid and long-chain dibasic acid, applied in the production field of mixed long-chain dibasic acid, can solve problems such as waste of resources, and achieve the effect of good customer response and good economic and social benefits
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0023] Take 5 tons of heavy components, measure the moisture content of 12%, put them into the decolorization tank, add 80 tons of water once, add 4000L of liquid caustic soda, add 1.75 tons of activated carbon for the first time, carry out decolorization treatment at 60 ° C for 70 minutes, use a plate frame Press filtration, add 600kg of activated carbon to the obtained clear liquid to carry out the second decolorization for 60 minutes, the decolorization temperature is 50°C, add 1870L of sulfuric acid with a concentration of 98% to the clear liquid obtained after filtration to acidify, adjust the pH to 2.7, and heat up to 90°C , keep warm for 2 hours for acidification, cool down to 35°C for plate and frame filter press, the filter cloth is above 400 mesh, wash with soft water three times, after the wet sample is dried, detect and weigh to obtain 3.2 tons of mixed dibasic acid.
Embodiment 2
[0025] Take 4.7 tons of the heavy component, measure the moisture content of 10%, put it into the decolorization tank, add 80 tons of water once, add 3800L of liquid caustic soda, add 1.70 tons of activated carbon, carry out decolorization treatment at 65°C for 70 minutes, and press filter with plate and frame. Add 700kg of activated carbon to the obtained clear liquid to carry out the second decolorization for 65 minutes. After 2 hours of acidification, the temperature was lowered to 36°C for plate and frame filter press. The filter cloth required to be over 400 mesh was washed three times with soft water. After the wet sample was dried, it was tested and weighed to obtain 2.8 tons of mixed dibasic acid.
Embodiment 3
[0027] Take 4.5 tons of the heavy component, measure the moisture content of 9%, put it into the decolorization tank, add 85 tons of water once, add 3500L of liquid caustic soda, add 2.0 tons of activated carbon, carry out decolorization treatment at 63°C for 73 minutes, and press filter with plate and frame. Add activated carbon 650kg to the obtained clear liquid to carry out the second decolorization for 70 minutes, the decolorization temperature is 60°C, add 1670L of sulfuric acid solution with a concentration of 95% to the clear liquid obtained after filtration to acidify, adjust the pH to 2.8, and heat up to 87°C. Keep warm for 2.5 hours for acidification, cool down to 33°C for plate and frame filter press, in which the filter cloth must be over 400 mesh, wash with soft water for three times, after the wet sample is dried, test and weigh to obtain 2.85 tons of mixed dibasic acid.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More