1. Próiseas táirgthe flocculant - modh hidrealú.
I gcomparáid leis an modh copolymerization, níl an fachtóir frith-dandruff intuaslagtha in uisce (HD) den táirge a ullmhaíonn an modh hidrealú ginearálta ard, níos lú ná 30%, agus go teoiriciúil, ba cheart go mbeadh táirge HD níos mó ná 70% ullmhaithe ag modh copolymerization, agus tá ceanglais áirithe ag an modh do theocht agus imeachtaí hidrealú. Ag an am céanna, is dócha go dtarlóidh díghrádú macramóilíneach le linn an phróisis hidrealúcháin. Rinne Yan Lanying agus daoine eile ó Ollscoil Tianjin staidéar ar an modh hidrealú leis an ngníomhaire hidrealú NaOH agus Na2CO3. Fuarthas amach go gcuireann NaOH ní hamháin leis an hidrealú ach go ndéanann sé an hidrealú a dhoimhniú freisin. Más fiú hydrolyzity íseal a úsáid (<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. Próiseas táirgthe flocculant 2: Polymerization tuaslagáin uiscí
3. Próiseas táirgthe flocculant a trí: Polymerization eibleachta inbhéartach
Roimh pholaiméiriú inbhéartach eibleachta agus polaiméiriú fionraí céim droim ar ais, is gá córas scaipthe collóideach cúltaca a ullmhú, is é sin, ola-ola (w/0) a chruthaítear córas scaipthe ola trí thuaslagán uiscí den mhonar-scaipeadh a chasadh trí thuaslagán uiscí an mhonaiméireachta a chasadh. Cuirtear an tionscnóir leis le haghaidh polaiméiriú radacach.