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e707004304
Wysłany: Pią 19:28, 31 Gru 2010
Temat postu: The water quality of a corrosive compound used in
The water quality of a corrosive compound used in corrosion inhibitors
Dense water sewage charges. Can save a lot of fresh water, the protection of water resources has important practical significance. The following embodiments further explanation by the characteristics of the present invention. Real side of an instance of the use of carbon steel corrosion. Preparation of compound: first 7gZnCI2 to 8gPBTC solution (Wujin Fine Chemical Plant, the concentration of 40%) in the. Saw and then dissolved by adding 6gHEDP (Tianjin Chemical Research Institute, the concentration of 5O%), and 15gHP from (Beijing China plant water stabilizer, the concentration of 40%). Finally, add 63g of deionized water. Scale test. Reference HG/T2024-91 method,
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, the preparation of C. a2, HCA) 3 a are 250rag / L of test water quality. Adding the compound to the water, the amount of 50rag / I. Water bath under the natural evaporation of 10 hours. The test solution was concentrated 2 times. To do with the blank test. The test solution filtered. Determination supernatant of ca 'content. Content of the test before and after the blank test solution ca ca \thermal power plants, water quality data see table) Canada 5omg / I of the complex agent dubbed ripple test, control, test solution temperature of 4O ��. the sample is 20 standard steel rack. The surface area of 0.28dm, sample speed 75 rev / min. rotary speed of about 035 m / sec,
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, continuous funny, right foot for 96 hours. end of the experiment. Remove the specimen. washing drying, weight changes before and after the experiment to calculate the corrosion rate of 87.92%. real side of the two experiments using carbon steel corrosion. Mixture preparation: first 9gZnSO4 to 10gPBTCNH solution,
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, dissolved and then add 9gHEDPK and 20gHPAAK, finally adding 52g of distilled water. Scale test: method with Example 1, Recovering concentration was 45mg / I. inhibition rate of 98.96% measured inhibition test: Method 1 with the real fall. compound concentration 45rag / I. measured corrosion rate of 9989%. Example 3 This example uses carbon steel corrosion test. Mixture Preparation: The 1lgZnCI2 to 12gPBTCK solution, dissolved and then add 12gEDTMPNH. and 25gHPAANa,
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, finally adding 50g of distilled water. Scale test: method with Example 1. compound the amount of 60rag / I. Scale measured rate of 97.92%. inhibition test: method with Example 1, compound amount of 60rrlg / L. measured corrosion rate of 93,
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,40%. Example 4 This example uses copper for corrosion. Mixture Preparation: The 8 .3 gZnS ~ L to 10gPBTC solution, dissolved Ran joined 9gATMP and 20gHPAA, finally add the 53g of distilled water dissolved 07gBTA. Scale test: method with Example 1, compound amount of water information reporting 050mg / I. calculated lrli fouling rate of 98.24% inhibition test: method with Example 1. But the coupon for the copper pendant. surface area for 0.28din. Kui corrosion inspection obstacle was removed after 1 99.7I% rustic Example 5 This example uses copper corrosion test compound were prepared Jing Di cut: who will add to the l2gPBTCNa 10gZnCt solution, dissolved together with a few l1.4gHEDPNa and 24gHPAAN. Finally, add distilled water where the dissolved I.6gTTA De 41g. Scale test: method with Example 1, Recovering profile meeting with the amount of .40 mg / I. inhibition rate 99.O2%. Corrosion Test: The method with the real down 4. Recovering dosage of 40mg / [, inhibition rate: 99.I1%. instance six instances for the dynamic simulation test standard reference HG/T216O 9I t cooling water for a dynamic cross the proposed experimental methods). test water quality for field concentration of water (with the example I). composite Jing formulations using Example 2. by hot carbon steel tube You 2O . length 710ram, wall thickness 1mm. diameter 8ram, circulating water lm / s. tube inlet temperature 32 ��, export Yun degrees 42 ��, l5 days of continuous operation, the measured etch rate Preserved 0.026mnfa, revolves with speed 0.45mR / cln2 �� n10n down real feast for the deletion of seven on the scale. with real side of the 6 test method simulates the dynamic ride, without compound. delete Pi canopy loss rate of 0.450mm / a, the adhesion rate 37.46mg/cmnlOll . by the proportion of instructions. using the compound of the invention can significantly reduce the benefits of strong corrosive dense water corrosion and fouling rate. to make it safe for circulating cooling water system = Schedule on-site dense water main, prime numbers noted in the
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