The effect of lignosulfonates on concretes produced with
This study investigated concrete produced using lignosulfonates with various chemical contents at different concentrations. Therefore, concrete mixtures were produced using Ca-lignosulfonate (LSc), Na-lignosulfonate (LSn), Mg-lignosulfonate (LSm), and K-lignosulfonate (LSk) at concentrations of 0.4% and 0.8% by weight in the cement.
Production and Application of Lignosulfonates and Sulfonated
In this process, lignosulfonates were reacted at 1:4 weight ratio with concentrated sulfuric acid at 20 °C. 72 The mixture was neutralized with calcium oxide to precipitate calcium sulfate, and filtered to produce soluble calcium lignosulfonates in the filtrate. The product could be dried.
CALCIUM LIGNOSULFONATE (40-65) - Food and Agriculture
Calcium Lignosulfonate (40-65) - Page 1 of 8 CALCIUM LIGNOSULFONATE (40-65) Chemical and Technical Assessment Prepared by M. Cecilia F. Toledo, Ph.D., and Paul M. Kuznesof, Ph.D., for the 69th JECFA 1 1. Summary Calcium lignosulfonate (40-65) is an amorphous light-yellow-brown powder obtained from the sulfite pulping of softwood.
Effects of Ca-, Mg-, K-, and Na-lignosulfonates on the
Lignosulfonates are waste products of the pulp and paper industry. The effects of various metal-cation-containing lignosulfonate-based plasticizers on the properties of concrete mixtures...
Lignosulfonates
Lignosulfonates (LS) are water-soluble anionic polyelectrolyte polymers: they are byproducts from the production of wood pulp using sulfite pulping. [1] Most delignification in sulfite pulping involves acidic cleavage of ether bonds, which connect many of the constituents of lignin. [2]
- What are lignosulfonate-based plasticizers?
- Lignosulfonates are waste products of the pulp and paper industry. The effects of various metal-cation-containing lignosulfonate-based plasticizers on the properties of concrete mixtures produced using cements with various Ca (SO4)·2H2O, tricalcium aluminate, and tetracalcium aluminoferrite contents were investigated.
- What is calcium lignosulfonate used for?
- 1.Calcium lignosulfonate used as water reduction in concrete. Calcium lignosulofnate superplasticizer is a surface-active agent, added to the concrete, due to the orientation of hydrophobic groups adsorbed on cement particle surface, so that a negative charge of cement.
- What is the molecular formula of calcium lignosulfonate?
- Calcium Lignosulfonate ( Molecular Formula C 20 H 24 CaO 10 S 2 )CAS No.8061-52-7, is yellow brown soluble powder.By nature is polymer electrolyte having a molecular weight from the 1,000-100000. 10000-40000 dispersion.can be used as concrete superplasticizer.
- What is calcium lignosulfonate used animal feed additives?
- Calcium lignosulfonate used animal feed additives. Function to Digestion system.To feed a variety of complex molecular nutrients fully decomposed and a good organic combination, increase gastrointestinal function, and promote the role of protein assimilation.
