Preparation method of water-absorbing resin from silkworm litter
A technology of water-absorbent resin and silkworm sand, applied in the field of water-absorbent resin, can solve the problems of high polymerization reaction temperature, high cost, not easy to degrade, etc., and achieves the effects of simple preparation method, prevention of waste and pollution, and easy operation.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0020] A. First crush the silkworm excrement, then place it at 600°C for conventional pyrolysis and dry distillation to obtain dry distillation gas and residue;
[0021] B. According to the liquid-solid ratio (mL / g) of 3:1, mix the residue obtained in step A with acrylic acid, and stir and hydrolyze at 5°C to obtain mixture I;
[0022] C. The dry distillation gas in step A is condensed to obtain an extract, and the mass ratio of tapioca starch:extract is 1:12, stirred and mixed, heated to 80° C. under the protection of nitrogen, stirred and reacted for 10 minutes, and mixture II is obtained;
[0023] D, get 15% ammonium sulfate of silkworm excrement quality, then according to the liquid-solid ratio (mL / g) of ammonium sulfate and dimethyl sulfoxide is 1:1, mix the two evenly, i.e. mixture III;
[0024] E. According to the mass ratio of methylene bisacrylamide: water is 1:20, dissolve methylene bisacrylamide in water, then mix the solution with the mixture II obtained in step C,...
Embodiment 2
[0027] A. First crush the silkworm excrement, then place it at 500°C for conventional pyrolysis and dry distillation to obtain dry distillation gas and residue;
[0028] B. According to the liquid-solid ratio (mL / g) of 4:1, mix the residue obtained in step A with acrylic acid, and stir and hydrolyze at 0°C to obtain mixture I;
[0029] C. Condensing the dry distillation gas in step A to obtain an extract, stirring and mixing according to the mass ratio of cornstarch:extract of 1:15, heating to 80° C. under nitrogen protection, and stirring for 5 minutes to obtain mixture II;
[0030] D, get 20% ammonium sulfate of silkworm excrement quality, then be 2:1 according to the liquid-solid ratio (mL / g) of ammonium sulfate and dimethyl sulfoxide, mix the two evenly, i.e. mixture III;
[0031] E. According to the mass ratio of methylene bisacrylamide: water is 1:5, dissolve methylene bisacrylamide in water, then mix the solution with the mixture II obtained in step C, and then add the ...
Embodiment 3
[0034] A. First crush the silkworm excrement, then place it at 800°C for conventional pyrolysis and dry distillation to obtain dry distillation gas and residue;
[0035] B. According to the liquid-solid ratio (mL / g) of 1:1, mix the residue obtained in step A with acrylic acid, and stir and hydrolyze at 10°C to obtain mixture I;
[0036] C. Condensing the retort gas in step A to obtain an extract, stirring and mixing according to the mass ratio of potato starch:extract of 1:5, heating to 80° C. under nitrogen protection, and stirring for 8 minutes to obtain mixture II;
[0037] D, get 5% ammonium sulfate of silkworm excrement quality, then be 1.5:1 according to the liquid-solid ratio (mL / g) of ammonium sulfate and dimethyl sulfoxide, the two are mixed homogeneously, i.e. mixture III;
[0038] E. According to the mass ratio of methylene bisacrylamide: water is 1:50, dissolve methylene bisacrylamide in water, then mix the solution with the mixture II obtained in step C, and then ...
PUM
Property | Measurement | Unit |
---|---|---|
water absorption | aaaaa | aaaaa |
water absorption | aaaaa | aaaaa |
water absorption | 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