30results about How to "The preparation process is green and environment-friendly" patented technology

The invention discloses an environment-friendly dendritic polyether dirt dispersion agent (APELL), relates to an environment-friendly dendritic polyether dirt dispersion agent which is free from phosphorus, is not nitrogen and is biodegradable, and a preparation method thereof and belongs to the preparation and application range of water treatment agent. The environment-friendly dendritic polyether dirt dispersion agent is suitable for a circulating cooling water system, and is especially suitable for high-calcium cooling water quality. The environment-friendly dendritic polyether dirt dispersion agent is obtained by the free radical copolymerization of a polyether carboxylic acid reaction monomer and vinyl-contained unsaturated double-bond monomer. The environment-friendly dendritic polyether dirt dispersion agent has a general structure formula shown in the specification, wherein A is a copolymerized repeated structure after the vinyl-contained unsaturated double-bond monomer is copolymerized, a polymerization degree x is 1-5000, a polymerization degree y is 1-5000, and a repeated unit m is 1-100. The dirt dispersion agent is biodegradable, has excellent effect on resisting Ca3(PO4)2, CaCO3 and CaSO4 scales, has good dispersion performance and is the environment-friendly polyether multifunctional water treatment agent.

The invention discloses an environment-friendly crude oil decalcifying agent. The decalcifying agent is an uniform transparent mixture with the solid content being 20-40 wt.% formed by mixing water and an organic compound at the room temperature. The organic compound is formed by mixing 30-50 wt.% of a chelating agent, 5-20 wt. / % of organic acid, 5-20 wt.% of a dispersing agent and 10-30 wt.% of a neutralizing agent at the room temperature. The prepared environment-friendly crude oil decalcifying agent is applicable to crude oil with the middle and high calcium content, calcium in crude oil can be effectively removed, and the decalcifying agent contains no phosphate and is environmentally friendly.

The invention discloses a fluorescent tracing green environmental-friendly polyglycol type water treatment agent (namely PEGEYYG) which is prepared by carrying out free radical copolymerization on a polyethylene glycol carboxylic acid reaction monomer, a monomer containing vinyl unsaturated double-bond and a fluorescent monomer containing unsaturated double-bond. According to the structural general formula of the water treatment agent, A is a repeating structure unit after the polymerization of the monomer containing the vinyl unsaturated double-bond, B is a repeating structure unit after the polymerization of the fluorescent monomer containing the unsaturated double-bond, the polymerization degrees x, y, z, p, q and g are respectively 1-5000, and the repeating unit m is 3-1000.

The invention provides an environment-friendly branched polyether water treatment agent (APEZ), and relates to a phosphorus-free and nitrogen-free and biodegradable environment-friendly branched polyether water treatment agent and a preparation method of the water treatment agent, belongs to the field of preparation and application of water treatment agents, and is applicable to a circulating cooling water system, in particular to high-calcium cooling water. The water treatment agent is prepared by subjecting polyether carboxylic acid reactive monomer and vinyl unsaturated double-bond containing monomer to free-radical copolymerization, and the water treatment agent has a structural formula shown in the description, wherein A is a repetition structure unit obtained by copolymerizing the vinyl unsaturated double-bond containing monomer, and the repetition structure unit has the polymerization degree x of 1 to 5000, and polymerization degree y of 1 to 5000, and the repetitive unit m is 1 to 100. A dirt dispersion agent is biodegradable, has excellent effect of inhibiting scales from Ca3 (PO4)2, CaCo3 and CaSO4, and high dispersion performance, and is an environment-friendly polyether water treatment agent.

The invention provides a fluorescent-traced green and environment-friendly polyether corrosion and scale inhibiting and dispersing agent (APEYYG) and a preparation method of the fluorescent-traced green and environment-friendly polyether corrosion and scale inhibiting and dispersing agent. The fluorescent-traced green and environment-friendly polyether corrosion and scale inhibiting and dispersing agent is prepared by copolymerizing a polyether carboxylic reactive monomer and a fluorescent monomer with unsaturated double bonds through free radicals; the agent has a structural formula (see the accompanying drawing), wherein A is a repetition structure unit obtained by copolymerizing the fluorescent monomer with unsaturated double bonds, the polymerization degree x is 5 to 5000, the polymerization degree y is 5 to 5000 the polymerization degree p is 5 to 5000, and the repetitive unit n is 1 to 100.

The invention relates to an environment-friendly polyether antisludging agent. A polyether carboxylic reaction monomer, a vinyl-containing unsaturated double-bond carboxylic monomer and a vinyl-containing unsaturated double-bond carboxylic ester monomer are subjected to radical copolymerization, thereby obtaining the environment-friendly polyether antisludging agent. The structure formula is as follows, wherein A is a repeated structure unit after the vinyl-containing unsaturated double-bond carboxylic monomer is subjected to the radical copolymerization; B is the repeated structure unit after the vinyl-containing unsaturated double-bond carboxylic ester monomer is subjected to the radical copolymerization; R is H or C1-C5 low-carbon alkyl; n value is 2-10; the degree of polymerization x is 2-5000; the degree of polymerization y is 2-5000; the degree of polymerization z is 2-5000; and the repeated structure unit m is 1-100.

The invention relates to a green environment-friendly corrosion and scale inhibiting dispersant (APEYY), which is prepared by free radical self-polymerization of a polyether carboxylic acid reaction monomer. The structural general formula of the dispersant is shown as the following, wherein, the polymerization degree x is 5-5000, the polymerization degree y is 5-5000, and the repeating unit number n is 1-100.

The invention discloses a fluorescent tracing green environmental-friendly polyglycol ether water treatment agent (namely PEGEYYG) which is prepared by carrying out free radical copolymerization on a polyglycol ether carboxylic acid reaction monomer, a monomer containing vinyl unsaturated double-bond and a fluorescent monomer containing unsaturated double-bond. According to the structural general formula of the water treatment agent, A is a repeating structure unit after the polymerization of the monomer containing the vinyl unsaturated double-bond, B is a repeating structure unit after the polymerization of the fluorescent monomer containing the unsaturated double-bond, the polymerization degrees x, y and z are respectively 1-5000, the repeating unit m is 3-1000, and R refers to saturated alkyl of C1-C18.

The invention relates to a fluorescent tracing non-phosphate polyether multifunctional water treatment agent (APEGYG), which is prepared from polyether monomers, monomers containing vinyl unsaturated double bonds and fluorescent monomers containing unsaturated double bonds through free radical copolymerization. The APEGYG has a structure formula shown as the accompanying drawing, wherein A is a repeated structure unit after polymerization of the monomers containing vinyl unsaturated double bonds, B is a repeated structure unit after polymerization of the fluorescent monomers containing unsaturated double bonds, G is -CH2-O- or -O-, the polymerization degree x is 5 to 5000, the polymerization degree y is 5 to 500, the polymerization degree z is 5 to 5000, and the repeated unit m is 5 to 100.

The invention relates to an environment-friendly polyether multipolymer crude oil decalcifying agent with stable performance, in particular to an environment-friendly crude oil decalcifying agent and a preparation method thereof. The crude oil decalcifying agent has excellent decalcifying performance, and is prepared from polyether amino-acid ester reaction monomers, allyl thiourea and unsaturated double-bond monomers containing vinyl through free radical polymerization. The general structural formula is shown in the description, wherein A is a repetitive structure unit generated after copolymerization of the unsaturated double-bond monomers containing vinyl, R is -CH2-SH or -(CH2)2-CONH2, the polymerization degree x is 2-500, the polymerization degree y is 2-500, the polymerization degree z is 2-500, and the repetitive unit m is 3-100.

An environment-friendly polyglycol ether multifunctional water treatment agent (namely PEGEY) is prepared through free radical copolymerization of polyglycol ether carboxylic acid reaction monomers and monomers containing vinyl unsaturated double bonds. The structural formula of the environment-friendly polyglycol ether multifunctional water treatment agent is figured as follows, wherein A represents a constitutional repeating unit formed after the polymerization of the monomers containing the vinyl unsaturated double bonds, the polymerization degree x is 1-5,000, the polymerization degree y is 1-5,000, the number m of repeating units is 3-1,000, and R represents C1-C18 saturated alkyl.