Do you want to publish a course? Click here

Chemical Inhibition for Steel Corrosion In Acidic Media, Using Vanillin

التثبيط الكيميائي لتآكل الحديد في الوسط الحمضي باستخدام الفانيلين

1582   5   22   0 ( 0 )
 Publication date 2016
and research's language is العربية
 Created by Shamra Editor




Ask ChatGPT about the research

The corrosion inhibition of transmision steel in 1M HCl solution in the presence of Vanillin at temperature (20,30,40,50,60)°C at concentration between (100-500) ppm for two hours were studied using weight loss method.


Artificial intelligence review:
Research summary
تناول البحث دراسة تثبيط تآكل الحديد في وسط حمضي باستخدام الفانيلين كمثبط. تم استخدام طريقة الانخفاض في الوزن لتحديد معدل التآكل في محلول حمض الهيدروكلوريك بتركيز 1M عند درجات حرارة مختلفة (20-60 درجة مئوية) وتركيزات مختلفة من الفانيلين (100-500 جزء في المليون) لمدة ساعتين. أظهرت النتائج أن كفاءة التثبيط تزداد بزيادة تركيز الفانيلين ودرجة الحرارة، حيث بلغت الكفاءة العظمى حوالي 87% عند درجة حرارة 60 درجة مئوية وتركيز 500 جزء في المليون. تم حساب المعايير التنشيطية لعملية التآكل مثل طاقة التنشيط، تغير الأنتالبية، وتغير الأنتروبية، وأظهرت النتائج أن امتزاز الفانيلين يتبع قانون لانغميور. خلصت الدراسة إلى أن الفانيلين يمكن استخدامه كمثبط فعال لتآكل الحديد في الأوساط الحمضية، وأنه يمتاز بكونه مادة صديقة للبيئة وغير سامة.
Critical review
دراسة نقدية: تعتبر هذه الدراسة مهمة في مجال حماية المعادن من التآكل، حيث تقدم حلاً بيئيًا واقتصاديًا باستخدام الفانيلين كمثبط لتآكل الحديد. ومع ذلك، يمكن توجيه بعض النقد البناء للدراسة. أولاً، لم يتم التطرق إلى تأثير الفانيلين على أنواع أخرى من المعادن، مما يحد من تطبيق النتائج على الحديد فقط. ثانيًا، لم يتم دراسة تأثير الفانيلين على المدى الطويل، حيث أن التآكل عملية مستمرة وقد تتغير كفاءة التثبيط بمرور الوقت. ثالثًا، كان من الممكن تحسين الدراسة بإجراء تجارب في ظروف بيئية مختلفة مثل وجود شوائب أو ملوثات في الوسط الحمضي. وأخيرًا، يمكن أن تكون الدراسة أكثر شمولية إذا تم مقارنة الفانيلين بمثبطات أخرى مستخدمة في الصناعة لتحديد مدى تفوقه أو نقصه.
Questions related to the research
  1. ما هي الطريقة المستخدمة في الدراسة لتحديد معدل تآكل الحديد؟

    استخدمت الدراسة طريقة الانخفاض في الوزن لتحديد معدل تآكل الحديد.

  2. ما هي أعلى كفاءة تثبيط تم الوصول إليها في الدراسة؟

    أعلى كفاءة تثبيط تم الوصول إليها كانت حوالي 87% عند درجة حرارة 60 درجة مئوية وتركيز 500 جزء في المليون من الفانيلين.

  3. ما هو القانون الذي يتبعه امتزاز الفانيلين على سطح الحديد؟

    امتزاز الفانيلين على سطح الحديد يتبع قانون لانغميور.

  4. ما هي المعايير التنشيطية التي تم حسابها في الدراسة؟

    تم حساب طاقة التنشيط، تغير الأنتالبية، وتغير الأنتروبية كمعايير تنشيطية في الدراسة.


References used
POPOV B, 2015 Evaluation of corrosion Corrosion Engineering ,Elsevier B.V. , Columbia , 1-28
POPOV B, 2015. Thermodynamics in the Electrochemical Reactions of Corrosion, Corrosion Engineering ,Elsevier B.V. , Columbia , 29
FARHAN A , et al. , 2014 A Study Of Corrosion Behavior Of Low Carbon Steel In Acidic And Basic Washing Water Of Crude Oil Solution At Different Temperatures J. Baghdad for Sci,Vol.11(4) , 1510-1518
rate research

Read More

The corrosion inhibition of transmision steel in 1M HCl solution in the presence of Succinic acid at temperature (20,30,40,50,60)°C at concentration between (10-6- 10-4) M for two hours were studied using weight loss method.
The aim of this work is to study the effect of the aging heat treatment on the pitting corrosion resistance of martensitic stainless steel. In this research a number of specimens from martensitic stainless steel were subjected to solution treatment a t 1050 for one hour followed by water quenching then aging in the temperatures range (400-750) for different holding times (1-16 hrs). After heat treatment, two types of corrosion tests (accelerated test and immersion test) were conducted. The results obtained in this research showed that the pitting corrosion resistance was affected by Aging temperature and three critical temperatures were found in corrosion test: the specimens aged at 475 0C had maximum corrosion rate. This may be due to the presence of stringer δ- ferrite and precipitation of very fine precipitates which precipitated heterogeneously in the martensitic matrix, which led to an increase in corrosion rate. The specimens aged at temperatures range (550 – 625) 0C had minimum values of corrosion rate, this is attributed to the high volume fraction of retained austenite. The specimens aged at temperatures above 625 had intermediate corrosion rate. The type of pits, which resulted from two pitting corrosion tests, was independent form the form of δ-ferrite and carbides which presence in microstructure.
This study includes the evaluation of the problem of seawater intrusion in Al-Bassa area in 2014 through chemical monitoring of a group of sampling wells, under certain condition that were subjected to the area during the research, representing by rainfall precipitation in the study area was only 500 mm/ year, as a result in the suspension of irrigation from 16 October lake and reuse of many abandoned pumping wells. This study founds an increasing in the salinity values in the Al- Bassa coastal area of summer in 2014, ranging between(665.6-6432mg/l)after increasing daily pumping rates, in addition to the increasing of chloride and sodium concentrations in most of sampling wells water in conjunction with high salinity levels. In the fall, the salinity values ranged between 490-950 mg / l. The geochemistry of Na/Cl indicates values less than 0.84 in most water samples during the summer, while in autumn this percentage was higher than 0.84 in most samples ,to be an indicator for marine water.
Marfona cultivar were chemical mutagen using 20, 30 and 40 mM of Ethyl Methane Sulphonate (EMS) for 2, 3, 4 hrs in 2013. was conducted to improve potato (Solanum tuberosum L.) tolerance to salinity. Plants Marfona mutagen from M5 and unmutagen were cultured with Spunta and Falouka Cvs in 2015. Plants were later subjected to another selection pressure, by irrigating them using water containing Nacl between 0-200 mM The results showed that the gradual increase in Nacl concentrations caused a significant gradual decreases in most vegetative, yield and its component characteristics. Mutant plants varied with unmutant for Marfona, Spunta and Falouka in plant height varied from 68 to 41 cm and number leaves varied from 21 to 12 leaf. and stem diameter varied from 1.349 to 0.370 cm and leaf area varied from 235 to 84 cm2. However, produced tubers number varied from 9.3 to 2.8 and weight them from 740 to 155 grams and tuber weight from 75.2 to 24.6 grams. The results also showed variations in the extent of tolerance between studied treatments to salinity stress where 4T3P2 treatment was the most tolerant.
In this research we studied the corrosion rate changes of iron samples which are not galvanized in the laborators ( laboratorsies of the faculty of science) and in nature (on the beach of the high-institute sea- research in Lattakia) The Inula ext racts were choosen as a plant inhibitor to cover the iron samples and protect it . because this plant is well known in the Coastal area, also it,s very cheap and easy to find and has good anti oxidation properties. The best conditions for (Inula-seawater) extract were : (PH=7 , time =24 hours , concent ration = 10%). The studied iron samples were treated with the ( inula-seawater) extract in the same previous conditions and we studied the corrosion rate changes for those samples and the affectivity of the inhibitor for them. The results were compared in each stage with other samples that were not treated . the treatment and after it were as follows: The velocity of the corrosion in the iron samples (before the treatment with the extract) in 120 days: - in the laboratory tanks was 0.78 mg/cm2 .day, but after the treatment was 0.23 mg/cm2.day -in the drizzle area was 0.80 mg/cm2.day, but after the treatment was 0.47 mg/cm2.day -in the waves area was 0.75 mg/cm2.day , but after the treatment was 0.41 mg/cm2.day - in the depth area was 0.79 mg/cm2.day , but after the treatment was 0.21 mg/cm2.day.
comments
Fetching comments Fetching comments
mircosoft-partner

هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا