TWI655157B - Preparation for high temperature tolerance type of phosphate to inhabit corrosion and scaling and method for using the same - Google Patents

Abstract

A corrosion or scale inhibiting preparation for assisting phosphate high temperature in a high temperature environment and a method for using the same, wherein the preparation comprises: a monocarboxylic acid/sulfonic acid high molecular polymer; a maleic acid high molecular polymer; and a benzene a sulfonic acid polymer; wherein the carboxylic acid/sulfonic acid polymer, the maleic polymer and the benzenesulfonic acid polymer have a weight ratio of 1:1:1 to 1:1 :9.

Description

Auxiliary phosphate high temperature resistant corrosion or scale inhibiting formulation and method of use thereof

The present invention relates to a corrosion-resistant or scale-suppressing formulation for assisting phosphate high temperature and a method of using the same, and more particularly to an anti-high temperature corrosion or scale inhibiting formulation for assisting phosphate in industrial cooling water and a method of using the same.

As the climate changes, the temperature rises and the available water resources drop drastically. Therefore, in the industrial water use, more attention is paid to the water recycling cycle. Generally, in industrial process water, such as industrial process cooling water, the water in the water circulation system is reused for the purpose of water saving, so that the concentration multiple is raised upwards, resulting in strict water quality conditions and easily causing scale formation in the water system. Or corrosion, current industrial process cooling water To avoid corrosion or excessive scaling of pipelines or equipment in cooling water, phosphorus-based chemicals are mainly used as mainstream drugs. In general, the previously stable phosphates primarily used a polymer having a carboxylic acid/sulfonic acid functional group as a phosphate stabilizer in water to avoid precipitation of calcium phosphate. However, the above scheme can only be effective in a water quality environment with low hardness (for example, a calcium hardness of less than 500 ppm), and in the relatively high temperature water environment, the cracking of such a polymer is accelerated, thereby losing the ability to stabilize phosphate. .

For example, U.S. Patent No. 4,584,105 discloses a carboxylic acid functional group. A base polymer that is extremely effective in inhibiting various calcium-containing scales. However, the above-mentioned conventional carboxylic acid functional group-containing polymer does not have an effect of suppressing the formation of calcium phosphate.

Further, U.S. Patent No. 4,502,978 discloses a dispersant containing an acrylic acid and a acrylamide polymer in a range of from 1:2 to 1:4, which is effective for stabilizing the phosphate in a water quality environment having a calcium hardness of 800 ppm or more. However, the above-mentioned conventional dispersant containing acrylic acid and acrylamide polymer can effectively function in a water quality environment with a calcium hardness of more than 800 ppm, but is lost in a high temperature (for example, more than 45 ° C) water quality environment. It stabilizes the function of phosphate in water.

In Chinese Patent Publication No. 1715216, it is disclosed that an inorganic polyphosphate is replaced by an organic polyphosphate which is not easily hydrolyzed and which can synergize with a plurality of water chemical single agents. However, the above-mentioned conventional organic polyphosphate has higher stability than the inorganic single agent, but it still hydrolyzes under the harsh water environment of high temperature and high hardness, and is not as good as inorganic. The ability of a polymer to stabilize phosphate.

Therefore, it is necessary to provide an inhibitory preparation for assisting corrosion or scaling of phosphate against high temperature and a method of using the same to solve the problems of conventional techniques.

The main object of the present invention is to provide a corrosion-resistant or scale-suppressing formulation for assisting phosphates in a high-temperature environment, and a method for using the same, which utilizes a benzenesulfonic acid polymer with a carboxylic acid/sulfonic acid functional group. The use of high molecular weight polymers to enhance the thermal stability of the formulation in stabilizing phosphate to avoid precipitation of calcium phosphate.

A secondary object of the present invention is to provide a corrosion-resistant or scale-suppressing preparation for assisting phosphate high temperature, and a method for using the same, which further utilizes a maleic acid high molecular polymer to enhance the corrosion inhibiting ability of the preparation in water, thereby making the preparation Water quality at high calcium hardness and high water temperature Under the conditions, the effectiveness of corrosion and scale inhibition is still maintained.

To achieve the above object, the present invention provides a corrosion-resistant or scale inhibiting formulation for assisting phosphate high temperature, comprising: a monocarboxylic acid/sulfonic acid high molecular polymer; a maleic acid high molecular polymer; and monobenzenesulfonic acid a high molecular weight polymer; wherein the carboxylic acid/sulfonic acid high molecular polymer, the maleic acid high molecular polymer and the benzenesulfonic acid high molecular polymer have a weight composition ratio of 1:1:1 to 1:1:9 .

In one embodiment of the invention, the molecular weight of the carboxylic acid/sulfonic acid polymer falls between 1000 and 10,000.

In one embodiment of the invention, the carboxylic acid/sulfonic acid high molecular polymer comprises a carboxylic acid/sulfonic acid functional group or a carboxylic acid/sulfonic acid/benzenesulfonic acid functional group; alternatively, it may be substituted with a carboxylic acid/ Maleic acid functional group, carboxylic acid/acrylic acid functional group or carboxylic acid/acrylic acid/acrylamide functional group; in particular, the carboxylic acid/sulfonic acid high molecular polymer is, for example, selected from a carboxylic acid/sulfonic acid copolymer (eg Acumer ^TM 2000) or a carboxylic acid / sulfonic acid / nonionic Sankyo polymers (e.g. Acumer ^TM 3100).

In one embodiment of the invention, the molecular weight of the maleic polymer is in the range of from 1,000 to 10,000.

In one embodiment of the invention, the maleic polymer comprises maleic acid/carboxylic acid functional groups, maleic acid/acrylic acid functional groups, maleic acid/acrylic acid/benzenesulfonic acid functional groups, maleic acid. /ethyl acrylate functional group, or maleic acid / ethyl acrylate / vinyl acetate functional group; in particular, the maleic acid high molecular polymer is selected, for example, from polymaleic acid (such as Belclene® 200) or Malay Acid/ethyl acrylate copolymer (eg Belclene® 283).

In one embodiment of the invention, the molecular weight of the benzenesulfonic acid high molecular polymer ranges from 8,000 to 20,000.

In an embodiment of the invention, the benzenesulfonic acid high polymer may be selected from Malay Acid/acrylic acid/benzenesulfonic acid polymer, or may be substituted with maleic acid/ethyl acrylate/vinyl acetate polymer; specifically, the benzenesulfonic acid high molecular polymer is, for example, selected from the group consisting of carboxylic acid/benzenesulfonic acid Polymer (such as Aquatreat® AR 540) or polysulfonated styrene.

In an embodiment of the invention, the monophosphate is further included, and the phosphate is selected from the group consisting of inorganic phosphates, organic phosphates, and polymeric phosphates.

In one embodiment of the present invention, the present invention provides a method of using a corrosion-resistant or scale inhibiting formulation for assisting phosphate high temperature, comprising the steps of providing a body of water having a pH of from 6 to 8.5. Adding a monocarboxylic acid/sulfonic acid high molecular polymer to the water; adding a maleic acid high molecular polymer to the water; and adding a benzenesulfonic acid high molecular polymer to the water; wherein the carboxylic acid The composition ratio of the acid/sulfonic acid high molecular polymer, the maleic acid high molecular polymer and the benzenesulfonic acid high molecular polymer is 1:1:1 to 1:1:9.

In one embodiment of the invention, the calcium hardness in the body of water is greater than 800 ppm and the temperature of the body of water is above 45 °C.

In an embodiment of the present invention, when the carboxylic acid polymer, the maleic polymer, and the benzenesulfonic acid polymer are added to the body of water, a phosphate is added to the body of water. Wherein the phosphate is selected from the group consisting of inorganic phosphates, organic phosphates, or polymeric phosphates.

The above and other objects, features, and advantages of the present invention will become more apparent from In addition, the "%" mentioned in the present invention means "weight percentage (wt%)" unless otherwise specified; the numerical range (such as 10% to 15% of A) includes upper and lower limits unless otherwise specified. (ie 10% ≦A ≦ 15%) and all numbers in the range Value points (such as 11, 12, 13, 14...); if the value range does not define a lower limit (such as B below 0.2%, or B below 0.2%), then the lower limit may be 0 (ie 0% ≦ B ≦ 0.2%); the proportional relationship of the "weight percent" of each component can also be replaced by the "weight by weight" ratio; various copolymers, such as carboxylic acid / sulfonic acid polymer, write The functional group preceding the "/" symbol indicates that its content and/or proportion is relatively higher than the functional group written after the "/" symbol. The above terms are used to illustrate and understand the present invention and are not intended to limit the invention.

First, in a first embodiment of the present invention, the present invention provides a corrosion-resistant or scale inhibiting formulation for assisting phosphate high temperature, comprising: a monocarboxylic acid/sulfonic acid polymer; a maleic acid polymer polymerization And a benzenesulfonic acid high molecular polymer; wherein the carboxylic acid/sulfonic acid high molecular polymer, the maleic acid high molecular polymer and the benzenesulfonic acid high molecular polymer have a weight composition ratio of 1:1: 1 to 1:1:9.

In this embodiment, the molecular weight range of the carboxylic acid/sulfonic acid high molecular polymer is preferably between 1000 and 10,000, wherein the main functional group of the carboxylic acid/sulfonic acid high molecular polymer may be selected from the group consisting of carboxylic acid. / sulfonic acid functional group or carboxylic acid / sulfonic acid / benzene sulfonic acid functional group; in addition, in other embodiments, may also be substituted with carboxylic acid / maleic acid functional group, carboxylic acid / acrylic acid functional group or carboxylic acid / acrylic acid / acrylamide functional group. Preferably, the carboxylic acid / sulfonic acid polymer may be a / carboxylic acid copolymers, e.g. commercially available from ROHM & HASS tradename Acumer ^TM 2000, having an average molecular weight of about 4500 (Mw), viscosity at about 400cps At 25 ° C, the solid content is about 43%; alternatively, the carboxylic acid / sulfonic acid polymer can also be a carboxylic acid / sulfonic acid / nonionic tri-copolymer, such as the trade name of the company ROHM & HASS Acumer ^TM 3100, having an average molecular weight of about 4500 (Mw), a viscosity of about 500cps at 25 ℃, solids content of about 43.5% type parts.

Furthermore, in the present embodiment, the molecular weight range of the maleic acid high molecular polymer Preferably, it is between 1000 and 10000, wherein the maleic polymer can be selected from the group consisting of maleic acid/carboxylic acid polymer, maleic acid/acrylic acid polymer, maleic acid/acrylic acid/benzenesulfonic acid polymerization. , maleic acid / ethyl acrylate polymer, or maleic acid / ethyl acrylate / vinyl acetate polymer. Preferably, the maleic acid high molecular polymer may be polymaleic acid, for example, commercially available under the trade name of Belclene® 200 from BioLab, having a viscosity of about 10 cSt to 25 cSt at 25 ° C and a solid content of about 48%. Up to 50%; alternatively, the maleic acid polymer may also be a maleic acid/ethyl acrylate copolymer, such as the commercially available trade name Belclene® 283 from BioLab, having a viscosity of about 10 cSt to 25 cSt at 25 ° C, solid The content of the form is about 43% to 45%.

In addition, in the present embodiment, the molecular weight range of the benzenesulfonic acid high molecular polymer is preferably between 8,000 and 20,000, wherein the benzenesulfonic acid high molecular polymer may be selected from the group consisting of maleic acid/acrylic acid/benzenesulfonate. The acid polymer; in addition, in other embodiments, it is also possible to replace it with a maleic acid/ethyl acrylate/vinyl acetate polymer. Preferably, the benzenesulfonic acid high molecular polymer may be a carboxylic acid/benzenesulfonic acid polymer, such as the trade name Aquatreat® AR 540 commercially available from Akzo Nobel Surface Chemistry, having an average molecular weight of about 10,000 (Mw) and a viscosity of about 700 cps. To 2000 cps, the solid content is about 48% to 50%; alternatively, the benzenesulfonic acid high polymer may also be selected from polysulfonated styrene (PSS) sold by Sigma Aldrich.

Further, in the present embodiment, the high temperature resistant phosphate inhibiting corrosion or scaling formulation preferably further comprises a monophosphate which may be selected from the group consisting of inorganic phosphates, organic or polymeric phosphates. The inorganic phosphate may be selected, for example, from the product ECOTEK-CC24 or ECOTEK-CC64 of Zhongyu Environmental Engineering Co., Ltd.; the organic phosphate may be selected, for example, from ECONEK-CD06 or ECOTEK-CD08; and the polymeric phosphate may be, for example, Selected from ECOTEK-CC93.

The present invention will be described in detail below with reference to the details of the embodiments of the present invention, but the experimental values of the following examples are merely illustrative and are not intended to limit the scope of the invention.

Corrosion resistance test: A low carbon steel test piece (C: 0.24% by weight, Si: 0.41% by weight, Mn: 2.3% by weight, P: 0.04% by weight, S: 0.04% by weight, and the balance being iron) was selected from Huguenot, USA. The company sells the product model ASTM C1010. The test water sample is the cooling water of Zhonggang Company. The water quality conditions after concentration 10 times are as follows: pH 6.9 to 7.3, Cl-: 600 ppm to 700 ppm, SO42-: 800 ppm to 900 ppm, calcium hardness (Ca -H): 900 ppm to 1100 ppm, total Fe: about 1 ppm. Take 1 liter of water and add the following chemicals first.

The chemicals used in the following examples and comparative examples are as follows:

(1) Inorganic phosphate (Zhongyu Environmental Protection Engineering Consulting Co., Ltd.);

(2) carboxylic acid / sulfonic acid copolymers: ROHM & HASS commercially available from tradename Acumer ^TM 2000 (hereinafter referred to as the A2000);

(3) a carboxylic acid / sulfonic acid / nonionic polymer Sankyo: ROHM & HASS commercially available from tradename Acumer ^TM 3100 (hereinafter referred to as A3100);

(4) Polymaleic acid: commercially available under the trade name Belclene® 200 (hereinafter referred to as B200);

(5) Maleic acid / ethyl acrylate copolymer: commercially available under the trade name Belclene® 283 (hereinafter referred to as B283);

(6) Polysulfonated styrene: polysulfonated styrene (PSS) sold by Sigma Aldrich;

(7) Carboxylic acid/benzenesulfonic acid polymer: commercially available under the trade name Aquatreat® AR 540 (hereinafter referred to as AR540) by Akzo Nobel Surface Chemistry.

(8) Adding 30 ppm to 1 liter of the water sample according to the formulation of the following formula, stirring for a few minutes, and then clamping the carbon steel test piece with an acrylic clip to place the water sample after the above-mentioned added medicament. The water temperature was controlled at 45 ± 1 ° C and stirred at a stirring speed of 100 rpm for three days.

The phosphate stability rate (%PO4-) of the agent is as shown in the following formula 1, and the evaluation method of the corrosion resistance of the test piece is as follows, wherein the ratio of each component is based on the weight: phosphate stability (% PO4-) = (Rx-R0)*100/(Ri-R0)..................Form 1

Rx: residual phosphate in the test sample (ppm)

Ri: initial phosphate of test sample (15ppm)

R0: phosphate in the blank group (ppm)

Test piece corrosion rate MPY=(Wi-Wx)/(D*836.4)........................Form 2

Wi: pre-test weight of carbon steel test piece (g)

Wx: post-test weight of carbon steel test piece (g)

D: test days

836.4: Conversion factor, including test piece density, test piece area and other parameters

The results of the test are shown in Table 2 below. The corrosion resistance of each group and the difference in phosphate concentration in the water samples before and after the test were compared to determine the ability of the agent to stabilize the phosphate.

As shown in the above table, Comparative Examples 1 to 3 show the inhibition of the formation of calcium phosphate and the carbon steel test using a carboxylic acid/sulfonic acid high molecular polymer, a maleic acid high molecular polymer or a benzenesulfonic acid high molecular polymer alone. There is no obvious effect on the corrosion inhibition of the film, wherein the carboxylic acid/sulfonic acid high molecular polymer and the benzenesulfonic acid high polymer only show the calcium phosphate inhibiting effect superior to the maleic acid high molecular polymer, but in the carbon In the corrosion inhibition of steel test pieces, effective results are still not achieved. In addition, Comparative Example 4 shows that a carboxylic acid/sulfonic acid polymer with a maleic polymer can effectively enhance corrosion. The ability to make, but the inhibition of precipitation of calcium phosphate has no obvious benefits. Further, Comparative Example 5 shows that although the carboxylic acid/sulfonic acid polymer with the benzenesulfonic acid polymer can effectively inhibit the formation of calcium phosphate, there is no significant synergistic effect on the corrosion inhibition ability of the carbon steel. The same result also occurred in the combination of maleic acid and benzenesulfonic acid high molecular polymer, as in Comparative Example 6.

As shown in Table 2, Examples 1 to 11 show the composition of a composite preparation of a carboxylic acid/sulfonic acid high molecular polymer with a maleic acid high molecular polymer and a benzenesulfonic acid high molecular polymer, which is high in the formulation. Under the conditions of calcium hardness (>800ppmCa-H) and high water temperature environment (about 45°C or above), it can be found that it has a good effect on the inhibition of calcium phosphate formation and corrosion inhibition of carbon steel. By comparing the test results of the above Comparative Example 4 and Example 1, it was found that the addition of the benzenesulfonic acid high molecular polymer can greatly enhance the inhibition of the formation of calcium phosphate without losing the corrosion inhibition ability of the carbon steel. The design of this formulation has similar effects even if it is replaced with a different carboxylic acid/sulfonic acid polymer and a maleic polymer, as shown in Example 2 and Example 3.

In addition, in order to further verify the effectiveness of the benzenesulfonic acid polymer phthalate with carboxylic acid/sulfonic acid polymer and maleic acid polymer in the inhibition of calcium phosphate formation and corrosion inhibition of carbon steel, PSS can be replaced. For AR540, AR540 is a kind of carboxylic acid/benzenesulfonic acid high molecular polymer, and the carboxylic acid/sulfonic acid high molecular polymer according to Examples 4 to 6 is greater than 10% by weight in the formulation ratio, and Calcium phosphate production is effectively inhibited, and the carbon steel material test piece also has obvious corrosion inhibition effect. In addition, further, Examples 4 and 7 to 8 show the effect of the synergistic effect of the formulation on the corrosion inhibition ability of carbon steel, which is proportional to the ratio of the maleic polymer, but the polymerization of maleic acid polymer The corrosion inhibition effect that the material can contribute is not as good as the corrosion inhibition effect of the carboxylic acid/sulfonic acid high molecular polymer. Further, Examples 9 to 11 show that the proportion of the benzenesulfonic acid high molecular polymer is proportional to the inhibition of the formation of calcium phosphate, and can also be maintained well. Carbon steel corrosion inhibition ability. Therefore, in the present invention, preferably, the carboxylic acid/sulfonic acid high molecular polymer, the maleic acid high molecular polymer and the benzenesulfonic acid high molecular polymer have a weight composition ratio of 1:1:1 to 1:1:9. .

In another aspect, the present invention provides a second embodiment, which provides a method of using a corrosion resistant or scale inhibiting formulation for assisting phosphate high temperature, comprising the steps of: providing a body of water, the acid of the body of water a base value of 6 to 8.5; adding a monocarboxylic acid/sulfonic acid high molecular polymer to the water; adding a maleic acid high molecular polymer to the water; and adding a high concentration of monobenzenesulfonic acid to the water a molecular polymer; wherein the composition ratio of the carboxylic acid/sulfonic acid high molecular polymer, the maleic acid high molecular polymer and the benzenesulfonic acid high molecular polymer is 1:1:1 to 1:1:9.

Next, in the present embodiment, the calcium hardness in the water body to be treated is greater than 800 ppm, and the temperature of the water body is higher than 45 °C.

Furthermore, in the present embodiment, the molecular weight of the carboxylic acid/sulfonic acid high molecular polymer falls between 1000 and 10,000, and the carboxylic acid/sulfonic acid high molecular polymer comprises a carboxylic acid/sulfonic acid functional group or a carboxylic acid. An acid/sulfonic acid/benzenesulfonic acid functional group; alternatively, it may be substituted with a carboxylic acid/maleic acid functional group, a carboxylic acid/acrylic acid functional group or a carboxylic acid/acrylic acid/acrylamide functional group; in particular, carboxylic acid / sulfonic acid polymer, for example, selected from carboxylic / sulfonic acid copolymers (such as Acumer ^TM 2000) or a carboxylic acid / sulfonic acid / nonionic Sankyo polymers (e.g. Acumer ^TM 3100).

In addition, in the present embodiment, the molecular weight range of the maleic acid high polymer falls between 1000 and 10,000, and the maleic acid high molecular polymer comprises a maleic acid/carboxylic acid functional group, maleic acid/acrylic acid. a functional group, a maleic acid/acrylic acid/benzenesulfonic acid functional group, a maleic acid/ethyl acrylate functional group, or a maleic acid/ethyl acrylate/vinyl acetate functional group; specifically, the maleic acid polymer The polymer is for example selected from the group consisting of polymaleic acid (such as Belclene® 200) or maleic acid/ethyl acrylate copolymer (eg Belclene® 283).

In addition, in the present embodiment, the molecular weight of the benzenesulfonic acid high molecular polymer falls between 8,000 and 20,000, and the benzenesulfonic acid high molecular polymer may be selected from the group consisting of maleic acid/acrylic acid/benzenesulfonic acid polymer. Or may be substituted with a maleic acid/ethyl acrylate/vinyl acetate polymer; specifically, the benzenesulfonic acid high molecular polymer is, for example, selected from a carboxylic acid/benzenesulfonic acid polymer (such as Aquatreat® AR 540) or Polysulfonated styrene.

In the present embodiment, the method for using the high temperature resistant phosphate to inhibit corrosion or scaling is added to the water body, the carboxylic acid/sulfonic acid polymer, the maleic polymer and In the case of the benzenesulfonic acid high molecular polymer, a monophosphate may be simultaneously added to the water, wherein the phosphate is selected from the group consisting of inorganic phosphates, organic phosphates, and polymeric phosphates.

The pharmaceutical composition formula used in this embodiment is similar to the first embodiment of the present invention, and only the water body conditions applied are different, and the first embodiment is selected from the pharmaceutical composition of Comparative Example 4 and Example 9 in the mold factory system. The water in the mold system was tested to have a calcium hardness of greater than 800 ppm, a pH of between 6 and 8.5, and a temperature above 45 °C. Preferably, the water body has a calcium hardness of between 800 ppm and 1100 ppm (as CaCO3), a pH of between 6.9 and 7.5, and a water temperature of more than about 10 °C above room temperature. Other water quality conditions are dissolved solids concentration less than 20ppm, chloride salt concentration less than 900ppm (as Cl-), organic phosphate concentration 1.5ppm to 5ppm (as PO4), inorganic phosphate concentration 13ppm to 16ppm (as PO4), all iron Less than 2ppm (as Fe3+), the mold factory uses one ton of water as the system water, the circulating water volume is 2.28 cubic meters / hour, the volatile amount is 41 liters / hour and the discharge is 5.46 liters / hour. After 30 days of observation, the results showed that the corrosion rates of carbon steel coupons of Comparative Example 4 and Example 9 were 0.64 and 0.41 MPY, respectively, and there was no significant difference between the two. However, on the surface of the carbon steel test piece of Comparative Example 4, it was found that a large amount of calcium phosphate deposition was attached thereto. And in the example 9 There is no significant calcium carbonate deposition, indicating that the formulations of the present invention have better handling at high calcium hardness (e.g., greater than 800 ppm) and high temperatures (e.g., greater than 45 °C).

The present invention has been disclosed in its preferred embodiments, and is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

Claims (11)

A corrosion-resistant or scale inhibiting preparation for assisting phosphates, comprising: a monocarboxylic acid/sulfonic acid high molecular polymer; a maleic acid high molecular polymer; and a benzenesulfonic acid high molecular polymer; wherein the carboxylic acid The weight ratio of the acid/sulfonic acid high molecular polymer, the maleic acid high molecular polymer and the benzenesulfonic acid high molecular polymer is 1:1:1 to 1:1:9, and the benzenesulfonic acid is high therein The molecular polymer is selected from the group consisting of maleic acid/acrylic acid/benzenesulfonic acid polymer, carboxylic acid/benzenesulfonic acid polymer, and polysulfonated styrene. The auxiliary phosphate high temperature corrosion or scale inhibiting preparation according to claim 1, wherein the carboxylic acid/sulfonic acid high molecular polymer has a molecular weight ranging from 1,000 to 10,000. An auxiliary phosphate high temperature corrosion or scale inhibiting preparation according to claim 2, wherein the carboxylic acid/sulfonic acid high molecular polymer is selected from the group consisting of: a carboxylic acid/sulfonic acid copolymer, or a carboxylic acid/sulfonic acid Acid/nonionic tri-copolymer. The corrosion-resistant or scale-inhibiting preparation of the auxiliary phosphate high temperature according to the first aspect of the invention, wherein the molecular weight of the maleic polymer is in the range of from 1,000 to 10,000. The auxiliary phosphate high temperature corrosion or scale inhibiting preparation according to claim 4, wherein the maleic polymer is selected from the group consisting of polymaleic acid or maleic acid/ethyl acrylate copolymer. . The auxiliary phosphate high temperature corrosion or scale inhibiting preparation according to claim 1, wherein the molecular weight of the benzenesulfonic acid high molecular polymer falls between 8,000 and 20,000. Corrosion or scale inhibition of auxiliary phosphates as described in claim 6 The agent wherein the benzenesulfonic acid high molecular polymer is a carboxylic acid/benzenesulfonic acid polymer or a polysulfonated styrene. The auxiliary phosphate high temperature corrosion or scale inhibiting preparation according to claim 1, further comprising a monophosphate selected from the group consisting of inorganic phosphates, organic phosphates, and polymeric phosphates. A method for using a corrosion-resistant or scale-suppressing formulation for assisting phosphate high temperature, comprising the steps of: providing a body of water having a pH of between 6 and 8.5; adding a carboxylic acid/sulfonate to the body of water An acid polymer; a maleic acid polymer is added to the water; and a benzenesulfonic acid polymer is added to the water; wherein the carboxylic acid/sulfonic acid polymer, the Malay The composition ratio of the acid high molecular polymer and the benzenesulfonic acid high molecular polymer is 1:1:1 to 1:1:9, and the high molecular weight polymer of the benzenesulfonic acid is selected from the group consisting of: Malay Acid/acrylic/benzenesulfonic acid polymer, carboxylic acid/benzenesulfonic acid polymer and polysulfonated styrene. A method of using a corrosion-resistant or scale-inhibiting formulation for an auxiliary phosphate according to claim 9 wherein the calcium hardness in the water body is greater than 800 ppm and the temperature of the water body is higher than 45 °C. The method for using a corrosion-resistant or scale inhibiting preparation for assisting phosphate high temperature according to claim 9, wherein the carboxylic acid/sulfonic acid polymer and the maleic acid polymer are added to the water. And the polyphenylene sulfonate polymer, at the same time adding a monophosphate to the water, wherein the phosphate is selected from the group consisting of inorganic phosphates, organic phosphates or polymeric phosphates.