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 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 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 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.

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.