Alkyl naphthylamine polyether naphthalene sulfonate surfactant as well as preparation method and application thereof
A technology of alkylnaphthylamine polyether and surfactant, which is applied in the field of heavy oil viscosity reducer and its preparation, can solve the problems of poor oil displacement effect, achieve strong action ability, high interface activity, and enhance oil recovery Effect
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Embodiment 1
[0057] 1. Synthesis of Decyl Naphthylamine Polyoxypropylene (10) Polyoxyethylene (15) Ether Naphthalene Sulfonate
[0058] a) add 1.0mol of decanyl naphthalene in the reactor that condensing unit, stirring device are housed, dropwise the 65% concentrated nitric acid of 2.0mol, control temperature of reaction is 65 ℃, after dropwise addition, continue reaction 4 hours, Obtain 0.91mol of decanyl nitronaphthalene;
[0059] b) Add 0.91 mol of decyl nitronaphthalene to the autoclave, add 22 g of Raney nickel catalyst, and seal the autoclave. Replace with nitrogen gas for 5 times, then replace with hydrogen gas for 5 times, raise the temperature to 80°C, start hydrogenation, control the system pressure not to exceed 4MPa, and react for 6 hours to obtain 0.87mol of decanyl naphthylamine;
[0060] c) Add 0.87 mol of decanyl naphthylamine and 2.5 g of sodium hydroxide to a reactor equipped with a condensing device, a stirring device and a gas disperser, and stir for 1 hour while heati...
Embodiment 2
[0070] 1. Synthesis of dodecylnaphthylamine polyoxyethylene (5) ether naphthalene sulfonate
[0071] a) add 1.0mol of dodecylnaphthalene in the reactor that condensing unit, stirring device are housed, dropwise the vitriol oil of 1.3mol65% nitric acid and 45g 98%, control reaction temperature is 30 ℃, after dropwise, Continue to react for 1 hour to obtain 0.91mol of dodecylnitronaphthalene;
[0072] b) Add 0.91 mol of dodecylnitronaphthalene into the autoclave, add 20 g of Raney nickel catalyst, and seal the autoclave. Inflate nitrogen for 5 times, then pass hydrogen for 5 times, raise the temperature to 80°C, start hydrogenation, control the system pressure not to exceed 4MPa, and react for 6 hours to obtain 0.88 mol of dodecylnaphthylamine;
[0073] c) Add 0.88 mol of dodecylnaphthylamine and 3.0 g of sodium hydroxide to a reactor equipped with a condensing device, a stirring device and a gas disperser, and stir for 1 hour while heating to 80° C. while blowing nitrogen. Tu...
Embodiment 3
[0078] 1. Synthesis of dodecyloctylnaphthylamine polyoxypropylene (4) polyoxyethylene (9) ether naphthalene sulfonate
[0079] a) Add 1.0mol of dodecyl octanenaphthalene in the reactor equipped with condensing device and stirring device, add dropwise the concentrated sulfuric acid of 1.5mol 65% nitric acid and 50g 98%, control reaction temperature to be 40 ℃, dropwise After the addition was completed, the reaction was continued for 2 hours to obtain 0.95mol of dodecyloctylnitronaphthalene;
[0080] b) 0.95 mol of dodecyloctylnitronaphthalene was added into the autoclave, 30 g of Raney nickel catalyst was added, and the autoclave was sealed. Infuse nitrogen for 5 replacements, then pass hydrogen for 5 replacements, raise the temperature to 50°C, start hydrogenation, control the system pressure not to exceed 4MPa, and react for 6 hours to obtain 0.92 mol of dodecyloctylnaphthylamine;
[0081] c) Add 0.92mol of dodecyloctylnaphthylamine and 4.0g of sodium hydroxide to a reactor ...
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