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Waste Rubber Pyrolysis Equipment Insoluble Inorganic Salts Sep 20, 2017

waste rubber pyrolysis equipment Insoluble inorganic salts

The Function and Production Process of Scale Inhibitor for Waste Rubber Pyrolysis Equipment

Waste rubber pyrolysis equipment scale inhibitor from the mechanism of action, the role of scale inhibitor can be divided into chelating, dispersion and lattice distortion of three parts. And in the laboratory assessment test, the dispersion is the chelation of the remedial action, lattice distortion is the role of remedial remedial measures.

effect

During the operation of the equipment, water and metal equipment coexist at the same time, will produce some insoluble inorganic salt, it will precipitate on the metal surface or scaling, often do not deal with, will reduce the container and pipe capacity, flow and Heat transfer capacity, reduce equipment production capacity. In order to avoid and reduce the harm, adding appropriate amount of scale inhibitor, the equipment in the insoluble inorganic salt dissolved, clean up.

Unreasonable scale inhibitor for the effect of the material is different

A monomer with a scale inhibition effect

(1) Preparation of polyalkenyl succinimidyl phenolic condensates:

Dispose of polyethylenepiamine in a mass ratio of 1: 1, solvent xylene placed in a four-necked flask equipped with a stirrer, thermometer, water separator and dropping funnel, heated in a stirrer oil bath until the temperature Rose to 80 ° C. Polybutylene succinic anhydride was added dropwise at a molar ratio of polyethylenepolamine to polyalkenyl succinic anhydride at 1: 1, and the temperature was raised to 100 to 150 ° C over 60 min. Reaction 4h to the water separator is no longer water, stop heating, natural cooling, the reaction product.

(2) When the reaction product of step (1) is cooled to 80 ° C, an alkylphenol or alkoxyphenol is added at a molar ratio of 1: 1 to the alkylphenol or alkoxyphenol, and then the dropping concentration is 37% 40% formaldehyde solution, formaldehyde and alkyl phenol or alkoxyphenol molar ratio l: 1,20min drop finished, the temperature rose to 100 ~ 160 ℃, reaction 3h to the water separator is no longer The product is cooled and the reaction product is cooled to room temperature to give a polyalkylene succinic alkyl phenolic condensate.

(3) polyisobutylene succinimidylmethoxyphenol condensate, N, N7a-salicylidene-1,2-propanediamine, calcium alkylsalicylate and heavy aromatics are prepared as described above Mixed with the flask. Heating to 60 ~ 70 ℃, stirring 30 ~ 60min, that is, waste rubber pyrolysis equipment scale inhibitor.