Preparation method of sulfydryl modified activated carbon for regenerating waste rubber
A technology of waste rubber and activated carbon, applied in the field of waste rubber regeneration, can solve the problems of low use cost and so on
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0024] Put the powdered activated carbon sample in 0.01 mol / L HNO 3 After magnetic stirring in the solution for 72 h, wash repeatedly with distilled water until the filtrate is neutral, 105 o C was dried to constant weight and stored in a desiccator for future use (AC). Add 6.5 g of mercaptoacetic acid, 3.8 g of acetic anhydride and 1.0 g of concentrated sulfuric acid into a brown ground-mouth jar, mix well, add 5 g of AC, mix well, cover and seal, and place in an oven for 80 o C was kept at constant temperature for 8 h. Finally, the mixture was taken out, vacuum filtered, and washed repeatedly with distilled water until neutral, 30-35 o C under vacuum drying to obtain the mercapto-modified activated carbon regenerant (AC-SH). The sulfur content was determined by an elemental analyzer to be 3.12 mmol / g.
[0025] Remove the metal, fiber and other components of the waste tires and use a grinder to grind them into a fine powder of about 20 meshes, mix them with AC-SH at a...
Embodiment 2
[0027] Put the powdered activated carbon sample in 0.01 mol / L HNO 3 After magnetic stirring in the solution for 72 h, wash repeatedly with distilled water until the filtrate is neutral, 105 o C was dried to constant weight and stored in a desiccator for future use (AC). Add 7.0 g of mercaptoacetic acid, 4.1 g of acetic anhydride and 1.1 g of concentrated sulfuric acid into a brown ground-mouth jar, mix well, add 5 g of AC, mix well, cover and seal, and place in an oven for 80 o C was kept at constant temperature for 8 h. Finally, the mixture was taken out, vacuum filtered, and washed repeatedly with distilled water until neutral, 30-35 o C under vacuum drying to obtain the mercapto-modified activated carbon regenerant (AC-SH). The sulfur content was determined by an elemental analyzer to be 3.01 mmol / g.
[0028] Remove the metal, fiber and other components of the waste tires and use a grinder to grind them into a fine powder of about 20 meshes, mix them with AC-SH at a...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More