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

The invention relates to a green environment-friendly polyether carboxylic acid ester corrosion inhibition and scale inhibitor (APEL) and preparation method thereof. The corrosion and scale inhibitor is a phosphorus-free, nitrogen-free and biodegradable water treatment agent, which is applicable to industrial recirculated cooling water and is used for water quality corrosion inhibition and scale inhibition treatment. The corrosion inhibition scale inhibitor of the present invention is obtained by free radical copolymerization of polyether carboxylic acid ester reactive monomers and vinyl unsaturated double bond monomers, which comprise the following structural general formula: wherein A is monomer copolymerized constitutional repeating unit containing vinyl unsaturated double bond; R is Hor C1 to C5 low carbon alkyl; the degree of polymerization of x is 1 to 5000; the degree of polymerization of y is 1 to 5000; repeating unit amount of m is 1 to 100. The carboxylic acid ester corrosion inhibition and scale inhibitor has good compatibleness, can be used alone or in combination with other water treatment agents, like organic phosphate, zinc salt corrosion inhibitor.

An environment-friendly polyethyleneglycol multifunctional water treatment agent (namely PEGY) is prepared through free radical copolymerization of polyethyleneglycol carboxylic acid reaction monomers and monomers containing vinyl unsaturated double bonds. The structural formula of the environment-friendly polyethyleneglycol multifunctional water treatment agent 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 polymerization degree z is 1-5,000, the polymerization degree z is 1-5,000, and the number m of repeating units is 3-1000.

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 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.

A polyether carboxylic ester corrosion and scale inhibitor marked by fluorescence is prepared by conducting radical copolymerization on a polyether carboxylic ester reaction monomer, a monomer containing vinyl unsaturated double bonds and a fluorescence monomer containing unsaturated double bonds. A structural general formula of the polyether carboxylic ester corrosion and scale inhibitor marked by fluorescence is shown in the specification, wherein A is of a repeating structure unit after the polymerization of the monomer containing the vinyl unsaturated double bonds, B is of a repeating structure unit of the polymerization of the fluorescence monomer containing the unsaturated double bonds, and R is H or C1-C5 low-carbon alkyl; and the polymerization degree x is 1-5000, the polymerization degree y is 1-5000, the polymerization degree z is 1-5000, and the repeated unit number m is 1-100.

The invention discloses an environment-friendly water treatment agent capable of realizing fluorescence tracing. The environment-friendly water treatment agent capable of realizing fluorescence tracing is obtained via water phase free radical copolymerization of an isopentenyl alcohol ester monmer and a monomer containing vinyl unsaturated double bonds with a fluorescent monomer capable of realizing fluorescence tracing. The general structural formula is disclosed in the invention, wherein A is used for representing structural repeat units obtained via copolymerization of the monomer containing vinyl unsaturated double bonds, B is used for representing structural repeat units obtained via polymerization of the fluorescent monomer containing unsaturated double bonds, polymerization degreesx and y range from 1 to 5000, the numbers of the repeat units m and n range from 1 to 100. The environment-friendly water treatment agent is excellent in compatibleness, can be used alone, and also can be combined with water treatment agents such as organic phosphates, and zinc corrosion inhibitors.

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.

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 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.

A modified polypropylene glycol soil remediation agent is prepared by free radical copolymerization of a polypropylene glycol ester monomer, a modified beta-cyclodextrin monomer, a monomer containingvinyl unsaturated double bonds and magnetic ferroferric oxide containing unsaturated double bonds, and has a general structure formula shown in the specification, wherein A is a repeating structural unit obtained after copolymerization of monomers containing vinyl unsaturated double bonds, B is magnetic ferroferric oxide containing unsaturated double bonds, the polymerization degree x, y and z are1-5000, and the number m and n of repeating units are 1-100. The soil remediation agent is good in compatibility, can be compounded with sepiolite, lime and other soil remediation agents for use, andcan also be independently used.

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 labeled phosphorus-free and environment-friendly polyether multifunctional water treatment agent (PEGDEYG). The fluorescent labeled phosphorus-free and environment-friendly polyether multifunctional water treatment agent is prepared by subjecting polyethylene glycol alkadiene ether, monomer with vinyl unsaturated double bond, and fluorescent monomer with unsaturated double bondto free-radical copolymerization; the agent has a structural formula shown in the description, wherein A is a repetition structure unit obtained by copolymerizing the monomer with vinyl unsaturated double bond, G is -CH2-O- or -O-; and the repetition structure unit has the polymerization degree x of 1 to 5000, and polymerization degree y of 1 to 5000, polymerization degree z of 1 to 5000, polymerization degree p of 1 to 5000, polymerization degree q of 1 to 5000, polymerization degree r of 1 to 5000, and the repetitive unit m is 3 to 1000.

Polyethylene glycol diene ether and monomer containing vinyl unsaturated double bonds undergo radical copolymerization, so that a phosphorus-free environment-friendly polyether multifunctional water treatment agent (PEGDE) is obtained. In the general structural formula of the phosphorus-free environment-friendly polyether multifunctional water treatment agent, A is the constitutional repeating unit of the polymerized monomer containing vinyl unsaturated double bonds, G is -CH2-O- or -O-, the degree of polymerization x is 1 to 5000, the degree of polymerization y is 1 to 5000, the degree of polymerization z is 1 to 5000, the degree of polymerization p is 1 to 5000, and the repeating unit m is 3 to 1000.