Method for production of plasticizer. RU patent 2245856.

FIELD: high effective plasticizer for concrete mixes.

SUBSTANCE: claimed method includes sulfonation of naphthalene cut from petrochemical process, in particular naphthalene cut of process stream from benzene production, followed by condensation with formaldehyde and neutralization of obtained product with alkali. Naphthalene cut contains (mass %) naphthalene 96.4-99.5; methylnaphtalene 0.01-0.2; biphenyl 0.001-0.1; low boiling additives (e.g. alkyl benzene, methylinden, tetralin_ 0.5-3.6.

EFFECT: enhanced raw base for production of concrete mix plasticizers.

4 cl, 1 tbl

IPC classes for russian patent Method for production of plasticizer. RU patent 2245856. (RU 2245856):

C04B28C04B28 -

C04B24/22 - Condensation products thereof

C04B103/32 - LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS (devitrified glass-ceramics C03C0010000000); REFRACTORIES (alloys based on refractory metals C22C); TREATMENT OF NATURAL STONE

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