1. Proses gynhyrchu flocculant - Dull hydrolysis.
O'i gymharu â'r dull copolymerization, nid yw'r ffactor gwrth-ddandruff sy'n hydoddi mewn dŵr (HD) y cynnyrch a baratowyd gan y dull hydrolysis cyffredinol yn uchel, yn llai na 30%, ac yn ddamcaniaethol, dylid paratoi cynnyrch HD sy'n fwy na 70% trwy ddull copolymerization, ac mae gan y dull ofynion penodol ar gyfer tymheredd hydrolysis a digwyddiadau. Ar yr un pryd, mae diraddio macromoleciwlaidd yn debygol o ddigwydd yn ystod y broses hydrolysis. Astudiodd Yan Lanying ac eraill o Brifysgol Tianjin y dull hydrolysis gyda'r asiant hydrolysis NaOH a Na2CO3. Canfuwyd bod NaOH nid yn unig yn cyflymu'r hydrolysis ond hefyd yn dyfnhau'r hydrolysis. Os yw'n werth defnyddio hydrolyzity isel (<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. Proses Gynhyrchu Flocculant 2: Polymerization Datrysiad Dyfrllyd
3. Proses Gynhyrchu Flocculant Tri: Polymerization Emwlsiwn Gwrthdro
Cyn polymerization emwlsiwn gwrthdro a pholymerization ataliad cyfnod wedi'i wrthdroi, mae angen paratoi system gwasgaru colloidal cam gwrthdroi, hynny yw, mae system wasgariad heterogenaidd olew dŵr (w/{2}}) yn cael ei ffurfio trwy droi toddiant dyfrllyd o'r monomer neu wasgariad. Ychwanegir y cychwynnwr ar gyfer polymerization radical.