Sodium lignosulphonate fraction of coal particles

The experimental results showed a molecular weight of 10 000 to 50 000, sodium lignosulphonate fraction of coal particles in the surface of the adsorption isotherm is approximately L-shaped, the larger amount of adsorption, and the surface of the coal particles and the electrokinetic potential (ζ potential) reaches -52mV, in various fractions for Pan River coal has the best dispersion viscosity reduction effect. Chitosan and sodium lignosulphonate as the capsule material to avermectin as core, using a complex coacervation microcapsules legal. Using orthogonal test complex condensates forming conditions conducted a preliminary screening on the basis of in-depth study of the impact of drug loading and microcapsules encapsulation efficiency of various factors. The best preparation conditions: chitosan viscosity 1500 mPa.s, chitosan mass fraction of 0.5%, the mass fraction of 2% sodium lignosulphonate emulsifier Tween80 and Span80 volume ratio of 2, emulsifier 6 mL, shell core mass ratio 6, complex coacervation time 15 min, crosslinking agent 4 mL.

Crosslinking time 1 h, the resulting microcapsules drug loading and encapsulation rate can reach 9.6% and 82%. No wall between the capsule core and chemically bonded. Chitosan / sodium lignosulphonate complex coacervation microcapsules can effectively control the release of avermectin. Traditional chemical pesticide formulations when administered can cause a lot of loss and decomposition of pesticides on human health and the environment at risk. Pesticide release agent can effectively control the drug release rate can be increased pesticide usage and efficacy, reduce environmental pollution and harm to human body, has become a hot area of ??research and development of new pesticide formulation of. In this paper, lignin sulfonate solution SO_2 flue gas removal was investigated experimentally. Experiments with double stirring gas - liquid reactor, the effect of the concentration of sodium lignosulphonate, temperature and other factors on SO_2 absorption and calculate the chemical absorption enhancement factor. The results show that effective removal of lignin sulfonate flue gas SO_2.

Black liquor contains a certain amount of lignin and lignin sulfonate. In order to extract lignin Yebing Lin, etc. [l1 502 have been used to make the black liquor is acidified to precipitate. Application of PEO / sodium lignosulphonate in newsprint. It is reported closed, the special structure itself has a lignin sulfonation reaction can occur with a sulfite, and the reaction itself determines the removal of lignin in the flue gas 50: possible.

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