1. flokulandi tootmisprotsess - hüdrolüüsi meetod.
Võrreldes kopolümeriseerimismeetodiga ei ole üldise hüdrolüüsi meetodil valmistatud toote vees lahustuv kõõmavastane tegur (HD) kõrge, alla 30% ja teoreetiliselt tuleks koopiameetodil koostada HD-i produkt, mis on suurem kui 70% ning meetodil on teatud nõuded hüdrolüüsi temperatuuri ja sündmuste osas. Samal ajal toimub hüdrolüüsiprotsessi ajal tõenäoliselt makromolekulaarne lagunemine. Yan Lanying ja teised Tianjini ülikoolist uurisid hüdrolüüsi meetodit hüdrolüüsi agendi NaOH ja Na2CO3 abil. Leiti, et NaOH mitte ainult ei kiirenda hüdrolüüsi, vaid süvendab ka hüdrolüüsi. Kui tasub kasutada madalat hüdrolüüsi (<10%) latex, NaOH can be used as a hydrolyzing agent. To make a latex with a degree of hydrolysis (greater than 10%), it is best to co-hydrolyze with NaOH and Na2CO3 to achieve a shorter time. High hydrolysis value. In recent years, high molecular weight, especially ultra-high molecular weight acrylic acid, acrylamide polymers have had an undisputed role in tertiary oil recovery. Compared with the hydrolysis method, the AA/AM copolymer prepared by the copolymerization method generally has a relatively low molecular weight and poor water solubility, and thus the ultrahigh molecular weight AA/AM copolymer is prepared by a hydrolysis method. Ji Hongyan, Sun Zhanwei and others established a latent initiation system for aqueous solution polymerization of acrylamide. The carbonate polymerization method was added to add different amounts of ammonia, urea, EDTA-2Na, and the pH value and monomer concentration of the polymerization system. The influence of the temperature of the polymerization water bath on the relative molecular mass and solubility of the polymerized product and its cause solve the contradiction between the high molecular weight of the product and the insoluble polymer. Li Xiaofu and Li Miangui synthesized anionic polyacrylamide with molecular weight greater than 1×10 by the combination of heterogeneous hydrolysis and reverse suspension. The relationship between hydrolysis degree and hydrolysis time and system pH value, and different water-alcohol ratio were studied. Under the condition of the relationship between the degree of hydrolysis and time, the degree of hydrolysis and temperature, the reaction conditions of ultra-high molecular weight fast-dissolving polyacrylamide were obtained.
2. flokulandi tootmisprotsess 2: vesilahuse polümerisatsioon
3. flokulandi tootmisprotsess kolm: pöördvõrdeline polümerisatsioon
Enne emulsioonipolümerisatsiooni ja tagurpidi faasi suspensiooni polümerisatsiooni on vaja valmistada vastupidise faasi kolloidse dispersioonisüsteemi, see tähendab, et veeõli (w/0) heterogeenne dispersioonisüsteem moodustub monomeeri vesilahuse segamisega õli segades või levitades. Algaja lisatakse radikaalseks polümerisatsiooniks.