Calcium lignosulphonate is made from corncob by utilizing sulfite pulping. Corncob is the single raw material during production, it is processed by adding 12% Na2SO3 into continuous digester, solution being condensed by a mechanical steam compressor and separated by chromatography, after second-phase condensation, obtain ligquid form of SLS, In order to comply with the application of ceramics and refractory materials, we use unique processes to remove sodium, potassium and other elements, so as to obtain ideal calcium lignosulphonate products for this purpose and other industries may use. As usuall, we can provide both liquid and powder forms.
|External appearance||Dark brown||Light brown|
|Dry matter||93% min.|
|PH (13% aqueous solution) ||5-9||5-9|
|Gravity (45% solution)||1.22-1.25g/ml||1.22-1.25g/ml|
|Water insoluble||0.3% max.||0.5% max.|
|Ash||10% max.||20% max.|
|Heavy metal||0.006% max.||0.01% max.|
|Reducing sugar||20% max.||20% max.|
The above analyses are not formal specification, values may change subject to specific needs of customers, All values are calculated on solid where applicable.
As an enhancer of refractory and ceramic materials, the benefits of the products include:
In the process of making wall bricks, floor tiles and refractory bricks, the particles of the green bricks can be bonded strongly and the strength can be improved by 20-60%