The structure characteristic parameter of non-woody magnesium lignosulfonate(ML) are studied by IR and other means in comparison with woody calcium lignosulfonate(CL).

Graft modification of calcium lignosulfonate and its application in the treatment of base dyeing effluent;

Utilization of calcium lignosulfonate with different molecular masses in mortar for shield tunneling method;

The Modification of Calcium Lignosulfonate as Water Reducer;

The result from the research indicates that by adding calcium lignosulphonate water reducer,the water requirement that the standard consistence of gypsum needs can be reduced and also the bending strength and the compression strength of its products can be improved.

The amphoteric lignin-based flocculant(LSM) was synthesized through graft acrylamide to calcium lignosulphonate and cationizing modification,influence of molar ratio of formaldehyde to dimethylamine,reaction temperature,reaction time on cationizing reaction were studied.

Research on retarding mechanism of calcium lignosulfonate to cement paste;

The surface physicochemical properties such as surface activity; adsorption performance and dispersive performance of calcium lignosulfonate (CLS) with different hydroxyl group contents are studied in order to expand its utilization.

In this paper, the calcium lignosulfonate (CL) was fractionated by means of ultrafiltration.

The spherical ligninbased cation exchange resin was prepared with calcium lignosulphonate as raw material in a cheap and non-toxic dispersing medium by reversed phase suspension polymerization.

The experimental study on modified lignin sulfonic acid calcium to prepare complex mortar agent;