lignosulfonates, microsilica, stpp exports from Russia

Various Applications for Sodium Lignousulfonates

Concrete Industry : Usage of Sodium Lignosulfonates, relating to the hydro-filizing plastificators, at the concrete manufacture and dry construction mixtures lets to reduce the consumption of components up to 10-15%. Remixing of the concrete mass reduces and its solidity rises, the speed of hardening slows down. Addition of lignosulfonates in the quantity of 0,15-0,20%, it is necessary to insert superplastificators from the mass of dry substance in the quantity of 0,5-2,0% from the mass of dry concrete. When replacing superplastificators by lignosulfonates the solidity of concrete rises up to 20-25%, freeze resistance - in 3-4 times and the cost of mixtures reduces cause of adding of small amount of lignosulfonates, what is connected with their adsorption on the surface of hard phase. Usage of lignosulfonates reduces humidity of raw mud if conserving its flow behavior, what rises the manufacture of stove and reduces specific flow volume to the burning of clinker. With the usage of intensifier on the base of lignosulfonates the production of grinding units rises and there is an opportunity to change expensive and deficit chemical products.

Petroleum Industry: In the petroleum refining and oil producing industries lignosulfonates are used as a flotation agent and reagent for regulating of the basic parametres of mud flushes. Also they are a component of gel forming systems - low-viscous solutions with pH 2.5-3.0. Gel forming leads to redistribution of filtration flows and their better regulation. Annealing of inject ability prophile, limit of inflows of water in processes, what rises oil production. Usage in these systems of lignosulfonates is possible by means of adsorbing properties of tensioactive additives.Technical lignosulfonates are used for hardening of different construction types: drill well moon pool, holes, etc, as well as in minerals industry.

Drilling Industry: In minerals industry technical lignosulfonates are used as a flotation reagent - substance, letting to achieve incomplete washing of separating materials, i.e. different ore minerals and doing possible the flotation process. The fact that technical lignosulfonates are ones of less expensive flotation reagents, several thousands of them are known, advances rising the demand to these reagents in the branch. Besides of these technical lignosulfonates are used for drill well moon pool hardening. They are added in different carpets and ground bases. These constructions are strengthened by emulsified bituminous materials, liquid bituminous materials or coal tars, phenolics with the concrete or lime which are added to lignosulfonates.

Building materials production: Due to its astringent, sticking and surface active properties lignosulfonates are used for producing plates: wood chips, wood-fiber and mineral-cotton. As in this production rather deficit, expensive, toxic, phenolformaldehyde, carbamide-phenolformaldehyde loams are used, mixture of modified lignosulfonate (20-30%) and loam lets to get combined binder.Thus toxication of plates, machined with additives on the base of lignosulfonates, reduces up to 50%. If use 40 kg/m2 of lignosulfonate while producing of mineral-cotton plates, we can succeed in fall-off of flow volume of toxic phenolic alcohols and therefore significal reducing of noxious emissions to the atmosphere. In addition wares are more firm and water-proof.
Metallurgy: The application of lignosulfonates is widely spread as a binding material for sand and core sand mixtures in foundry. During manufacture of sand and core sand mixtures for cast iron, non-ferrous and steel casting lignosulfonates replace some deficit and toxic materials: phenolic alcohols, carbamide-formaldehyde, phenolformaldehyde pitches. While using binding substances on the base of lignosulfonates reducing of cost price of suitable raw passes, rising of durability of core, reducing of their flow ability up to 0,05-0,08%, reducing of temperature and retrenchment of time of the warm hot-setting. Lignosulfonates are used as a flotation reagent and binding reagent for briqueting close grained raw. They are widely used as a binding substances and plastificators in production of agglomeration of head, acid corrosion, hardening, etc.
Pharmacy & Pestisides: Lignosulfonates are used in pesticide production and as treating agent in the chemical production - as a dispergator and stabilizer in the manufacture of plants care chemical affinity. Also usage of lignosulfonates is widely spread in food and perfume industries. Vanillin, extracting from lignosulfonates and guaiacol is used for giving a specific smell.