1. Proċess ta 'produzzjoni tal-flokkulanti - Metodu ta' idroliżi.
Meta mqabbel mal-metodu ta 'kopolimerizzazzjoni, il-fattur kontra l-brija (HD) li jinħall fl-ilma tal-prodott ippreparat bil-metodu ta' idroliżi ġenerali mhuwiex għoli, inqas minn 30%, u teoretikament, il-prodott ta 'HD akbar minn 70% għandu jkun ippreparat permezz ta' metodu ta 'kopolimerizzazzjoni, u l-metodu għandu ċerti rekwiżiti għat-temperatura ta' l-idroliżi u l-avvenimenti. Fl-istess ħin, id-degradazzjoni makromolekulari x'aktarx isseħħ matul il-proċess ta 'idroliżi. Yan Lanying u oħrajn mill-Università ta 'Tianjin studjaw il-metodu ta' idroliżi ma 'l-aġent ta' l-idrolisi NAOH u NA2CO3. Instab li NaOH mhux biss iħaffef l-idroliżi iżda wkoll japprofondixxi l-idroliżi. Jekk huwa tajjeb li tuża idroliżità baxxa (<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. Proċess ta 'Produzzjoni tal-Flokkulanti 2: Polimerizzazzjoni ta' Soluzzjoni Akwa
3. Proċess ta 'Produzzjoni tal-Flokkulanti Tlieta: Polimerizzazzjoni ta' Emulsjoni Inversa
Qabel il-polimerizzazzjoni ta 'emulsjoni inversa u l-polimerizzazzjoni ta' sospensjoni tal-fażi maqluba, huwa meħtieġ li tħejji sistema ta 'dispersjoni kollojdali b'fażi inversa, jiġifieri, sistema ta' tixrid ta 'ilma (w / 0) hija ffurmata billi tħawwad soluzzjoni milwiema tal-monomer billi tħawwad jew tinfirex il-fażi taż-żejt. L-inizjatur huwa miżjud għal polimerizzazzjoni radikali.