Sodium Lignosulphonate used as a coal water slurry additive
Sodium Lignonsulphonate:
Humic acid-lignin composite additives have been used in the production of coal water slurry, and have achieved good economic, environmental and social benefits. By using the alkali contained in the concentrated alkaline paper black liquor as extraction agent, the crushed lignite or grass charcoal containing rich humic acid was extracted, and then the humic acid and lignin were sulfonated to prepare humic acid-lignin compound additive. The results show that the compound reagent composed of humic acid and lignin has better effect than the single reagent. It can not only reduce the viscosity, but also has higher yield, which greatly reduces the amount of extraction agent and also reduces the cost. The effect of lignite as source of humic acid is satisfactory. The amount of black liquor and its concentration can vary in a wide range. The application of humic acid-lignin coal water slurry composite additive in production has proved that compared with the original additive, the additive cost of tons of slurry can be reduced by more than 25%, and the production cost of additive plant can be reduced by about 30%.
Lignin sulfonate was prepared by sulfonation of formaldehyde and sodium sulfite with lignin as raw material, which was used as dispersant of coal water slurry. Degradation and modification of lignin into both hydrophobic groups and hydrophilic groups of low molecular substance, can be used as a stabilizer, stabilizer and dispersant (or surfactant) at 10:1 ratio, that is, coal water slurry composite additives, the performance of this dispersant is better than humic acid sulfonate, but than naphthalene sulfonate powder poor; This stabilizer is better than other stabilizers, but the initial viscosity is higher. The results show that the composite additives of naphthalene sulfonate and modified low molecular lignin stabilizer can be prepared with low price, convenient use, good performance and stable effect
| NO | Index items | Standard value | Test Results |
| 1 | Appearance | Yellow Brown powder | Meets the requirement |
| 2 | PH Value(1% soluble) | 7-9 | 8.8 |
| 3 | Dry matter | 93%min | 93.50 |
| 3 | Moisture | 7.0%max | 6.5 |
| 4 | lignosulphonate | 60%min | 61.40 |
| 5 | Total reducing matter | 3.0% max | 2.5 |
| 6 | Inorganic salt (Na₂SO₄) | 2.0%max | 0.5 |
| 7 | Water insoluble matter | 2.0%max | 1.85 |
| 8 | Calcium Magnesium General quantity | 0.5%max | 0.25 |
| 9 | Viscosity(20% aqueous solution 18-20℃) | 7-10 | 8.7 |
FAQ:
Q1. Which payment is available for your company?
Re: T/T, L/C, D/A, D/P, Western Union, MoneyGram
Q2. How can I get the sample?
Re: We provide you free sample. But you should pay for the postage. When we have a formal transaction, we will refund the postage of this sample.
Q3. How can you guarantee the goods you offer is qualified?
Re: We can provide sample, COA, MSDS and etc to help you insure the quality. And we promise every batch of product will be tested in the factory, and they can only leave the factory after the quality is qualified.
Q4. How can I get your best price?
Re: We will provide you timely market information and the fluctuation trends of raw material to help you determine the mos
Product Tags:
|
|
Stable Na Lignosulphonate , Sodium Lignin Sulfonate For Coal Water Slurry Additive Images
|
