|
|
|
|
|
|
|
|||||||
|
| الهندسة الكيميائية ................ بإشراف : أبو عزام |
 |
|
|
LinkBack | أدوات الموضوع | تقييم الموضوع |
09-11-2006, 08:46 PM
|
|||
|
|||
|
موضوع رائع
من يمكنه المساعدة فى اساسيات صناعة الدهانات بصفة عامة ودهانات السيارات بصفة خاصة 
|
|
02-12-2006, 07:09 PM
|
|||
|
|||
|
مقترح جيد جدا نسأل الله التوفيق
|
|
14-02-2007, 11:14 AM
|
|||
|
|||
|
هل يوجد في الوطن العربي مجمع الفين ( اثيلين) اذا كانت الاجابه نعم هل عندكم pilot plant وشكرا
|
|
24-02-2007, 11:08 PM
|
|||
|
|||
|
ارجو افادتي في صناعة مستحضرات التجميل والمواد الضارة بالوجه ولكم جزيل الشكر
|
|
25-02-2007, 04:32 PM
|
|||
|
|||
|
ارجو المساعة عن كيفية صناعة الغراء الأبيض
|
|
27-03-2007, 10:09 AM
|
|||
|
|||
|
أخواني , هل عندكم فكره كيفيه فصل البلاستيك من المطاط
|
|
27-03-2007, 10:11 AM
|
|||
|
|||
|
أخواني, هل عندكم فكره فصل البلاستيك pvc عن المطاط . بدون حراره و لامواد كيماويه فقط بالكهرباء
|
|
04-04-2007, 05:25 AM
|
|||
|
|||
|
ملاحظ انه منذ بدأت الصفحة انه ولا اجابة واحدة
|
|
13-04-2007, 12:09 PM
|
|||
|
|||
|
السلام عليكم ورحمة الله وبركاته
اقتراح أكثر من رائع لذا ان شاء الله سوف اقوم بتحميل ملفات الكثير من المنتجات الصناعية التى تحدث عنها : ullmann's encyclopedia of industrial chemistry kirk-othmer encyclopedia of chemical technology ولكن دعونا نأخذ اولا نبذة عن هاذان المرجعان : (1)Ullmann's - the Ultimate Reference ULLMANN'S Encyclopedia of Industrial Chemistry is the world's largest reference in applied chemistry, industrial chemistry, and chemical engineering in the broadest sense. With some 1000 articles written by more than 3000 experts from the top chemical companies and research institutes Ullmann's Encyclopedia is the first-stop source for any query or question concerning chemicals, processes, physical and chemical data, and much more. Fully international in scope and coverage, the *******s have been quality-checked by an international advisory board and an editorial team. Ullmann's topics include: Agrochemicals Analytical Techniques Biochemistry & Biotechnology Chemical Reactions Dyes and Pigments Energy Environmental Protection, Industrial Safety Fat, Oil, Food and Feed, Cosmetics Inorganic Chemicals Materials Metals and Alloys Organic Chemicals Pharmaceuticals Polymers and Plastics Processes & Process Engineering Renewable Resources Special Topics (2)Kirk-Othmer Encyclopedia of Chemical Technology An unrivaled library of information for the chemical industry. Featuring over 27,000 pages and 800 articles, this 27-volume encyclopedia is now complete and includes: CAS registry numbers, over 5,000 photos, charts, graphs, figures and tables, in-depth up to-date information on regulations, patents and licensing. In addition to updating traditional subjects, the Fourth Edition will include expanded coverage of biotechnology, materials science, computer technology, energy sources and conversion techniques, and environmental issues such as pollution control, toxicology, and recycling technology. The Fourth Edition will bring together over 1000 articles by recognized experts in their areas of chemical technology, and will deal with industrial products, natural materials, and processes in such fields as: agricultural chemicals, chemical engineering, coatings and inks, composite materials, cosmetics and pharmaceuticals, dyes, pigments and brighteners, ecology and industrial hygiene, energy conservation and technology, fats and waxes, fermentation and enzyme technology, fibers, textiles and leather, food and animal nutrition, fossil fuels and derivatives, glass, ceramics and cement, industrial inorganic chemicals, industrial organic chemicals, metals, metallurgy and metal alloys, plastics and elastomers, semiconductors and electronic materials, surfactants, detergents and emulsion technology, water supply, purification and reuse, wood, paper, and industrial carbohydrates. The Encyclopedia also includes miscellaneous topics such as: instrumentation and quality control information retrieval maintenance market research material allocation and supply legal issues process development and design product development and technical service research and operations management (systems management, networks, etc.) transportation of chemical products
|
|
13-04-2007, 12:14 PM
|
|||
|
|||
|
سيكون حديثنا اولا عن ال organic chemicals وهى تحتوى الآتى من اهم المنتجات الصناعية :
Acetaldehyde Acetic Acid Acetic Anhydride and Mixed Fatty Acid Anhydrides Acetone Acetylene Acridine Acrolein and Methacrolein Acrylic Acid and Derivatives Acrylonitrile Adipic Acid Alcohols, Aliphatic Alcohols, Polyhydric Aldehydes, Aliphatic and Araliphatic Allyl Compounds Aluminum Compounds, Organic Amines, Aliphatic Amines, Aromatic Amino Acids Aminophenols Ammonium Compounds Aniline Anthracene Anthraquinone Aziridines Benzaldehyde Benzene Benzenesulfonic Acids and Their Derivatives Benzidine and Benzidine Derivatives Benzoic Acid and Derivatives Benzoquinone Benzyl Alcohol Benzylamine Boron Compounds Butadiene Butanals Butanediols, Butenediol, and Butynediol Butanols 2-Butanone Butenes Butyrolactone Caprolactam Carbamates and Carbamoyl Chlorides Carbazole Carbonic Esters Carboxylic Acids, Aliphatic Carboxylic Acids, Aromatic Chloroacetaldehydes Chloroacetic Acids Chloroamines Chloroformic Esters Chlorohydrins Chlorophenols Chlorophenoxyalkanoic Acids Choline Cinnamic Acid Cresols and Xylenols Crotonaldehyde and Crotonic Acid Crown Ethers Cyanamides Cyanuric Acid and Cyanuric Chloride Cyclododecanol, Cyclododecanone, and Laurolactam Cyclododecatriene, Cyclooctadiene, and 4-Vinylcyclohexene Cyclohexane Cyclohexanol and Cyclohexanone Cyclopentadiene and Cyclopentene Dextran Dialkyl Sulfates and Alkylsulfuric Acids Diazo Compounds and Diazo Reactions Dicarboxylic Acids, Aliphatic Dimethyl Ether Dioxane Dithiocarbamic Acid and Derivatives Epoxides Esters, Organic Ethanol Ethanolamines and Propanolamines Ethers, Aliphatic Ethylbenzene Ethylene Ethylene Glycol Ethylene Oxide Ethylenediaminetetraacetic Acid and Related Chelating Agents 2-Ethylhexanol Fatty Alcohols Fluorine Compounds, Organic Formaldehyde Formamides Formic Acid Fructose Furan and Derivatives Gluconic Acid Glycerol Glyoxal Glyoxylic Acid Guanidine and Derivatives Hexamethylenediamine Hydroquinone Hydroxycarboxylic Acids, Aliphatic Hydroxycarboxylic Acids, Aromatic Imidazole and Derivatives Indicator Reagents Indole Isocyanates, Organic Isoprene Ketenes Ketones Lactic Acid Lactose and Derivatives Maleic and Fumaric Acids Malonic Acid and Derivatives Melamine and Guanamines Mercaptoacetic Acid and Derivatives Methacrylic Acid and Derivatives Methanol Methyl Tert-Butyl Ether Methylamines Naphthalene and Hydronaphthalenes Naphthalene Derivatives Naphthoquinones Nitriles Nitrilotriacetic Acid Nitro Compounds, Aliphatic Nitro Compounds, Aromatic Oxalic Acid Oxocarboxylic Acids Pentanols Peroxy Compounds, Organic Phenol Phenol Derivatives Phenylene- and Toluenediamines Phosgene Phosphorus Compounds, Organic Phthalic Acid and Derivatives Propanal Propanediols Propanols Propene Propionic Acid and Derivatives Propylene Oxide Purine Derivatives Pyridine and Pyridine Derivatives Pyrimidine and Pyrimidine Derivatives Pyrrole 2-Pyrrolidone Quinoline and Isoquinoline Resins, Natural Resins, Synthetic Resorcinol Salicylic Acid Saponins Silicon Compounds, Organic Sodium Compounds, Organic Solvents Sorbic Acid Styrene Sugar Alcohols Sulfamic Acid Sulfinic Acids and Derivatives Sulfones and Sulfoxides Sulfonic Acids, Aliphatic Talc Tar and Pitch Tartaric Acid Terephthalic Acid, Dimethyl Terephthalate, and Isophthalic Acid Terpenes Tetrahydrofuran Thiocyanates and Isothiocyanates, Organic Thiols and Organic Sulfides Thiophene Thiourea and Thiourea Derivatives Toluene Toluidines Turpentines Urea Vinyl Esters Vinyl Ethers Xanthates Xylenes Xylidines
|
|
13-04-2007, 02:43 PM
|
|||
|
|||
|
فلنبدأ باسم الله
نتحدث اليوم عن ال acetadehyde وإليكم تلك النبذة عنه Acetaldehyde (ethanal), CH3CHO [75-07-0], was observed in 1774 by Scheele during reaction of black manganese dioxide and sulfuric acid with alcohol. Its constitution was explained in 1835 by Liebig who prepared pure acetaldehyde by oxidation of ethanol with chromic acid and designated this product “aldehyde,” a contraction of the term “alcohol dehydrogenatus.” Acetaldehyde is a mobile, low-boiling, highly flammable liquid with a pungent odor. Because of its high chemical reactivity, acetaldehyde is an important intermediate in the production of acetic acid, acetic anhydride, ethyl acetate, peracetic acid, butanol, 2-ethylhexanol, pentaerythritol, chlorinated acetaldehydes (chloral), glyoxal, alkyl amines, pyridines, and other chemicals. The first commercial application was the production of acetone via acetic acid between 1914 and 1918 in Germany (Wacker-Chemie and Hoechst) and in Canada (Shawinigan). Occurrence. Acetaldehyde is an intermediate in the metabolism of plant and animal organisms, in which it can be detected in small amounts. Larger amounts of acetaldehyde interfere with biological processes. As an intermediate in alcoholic fermentation processes it is present in small amounts in all alcoholic beverages, such as beer, wine, and spirits. Acetaldehyde also has been detected in plant juices and essential oils, roasted coffee, and tobacco smoke. Commercial production processes include dehydrogenation or oxidation of ethanol, addition of water to acetylene, partial oxidation of hydrocarbons, and direct oxidation of ethylene. In the 1970s, the world capacity of this last process, the Wacker-Hoechst direct oxidation, increased to over 2×106 t/a. However, the importance of acetaldehyde as an organic intermediate is now steadily decreasing, because new processes for some acetaldehyde derivatives have been developed, such as the oxo process for butanol and 2-ethylhexanol and the Monsanto process for acetic acid. In the future, new processes for acetic anhydride (Halcon, Eastman, Hoechst), for vinyl acetate (Halcon), and for alkyl amines (from ethanol) will diminish the use of acetaldehyde as a starting material. وللمزيد من التفاصيل بإمكانكم تحميل الملفات المرفقة إن شاء الله
|
|
13-04-2007, 05:46 PM
|
|||
|
|||
|
ونواصل بعون الله
والأن مع ال acetic acid وإليكم تلك النبذة عنه 1. Introduction Acetic acid [64-19-7], CH3COOH, Mr 60.05, is found in dilute solutions in many plant and animal systems. Vinegar, an aqueous solution containing about 4 – 12 % acetic acid, is produced by the fermentation of wine and has been known for more than 5000 years. The major producers of acetic acid, accounting for ca. 70 % of total worldwide production, are the United States, Western Europe, and Japan. World capacity exceeds 7 × 106 t/a [1]. The largest end uses are in the manufacture of vinyl acetate [108-05-4] and acetic anhydride [108-24-7]. Vinyl acetate is used in the production of latex emulsion resins for applications in paints, adhesives, paper coatings, and textile treatment. Acetic anhydride is used in the manufacture of cellulose acetate textile fibers, cigarette filter tow, and cellulose plastics. وللمزيد من التفاصيل أرجو الإطلاع على الملفات المرفقة إن شاء الله
|
|
13-04-2007, 05:52 PM
|
|||
|
|||
|
وإليكم بقية الملفات المرفقة حول موضوع الacetic acid مع ذلك الرد
|
|
| مواقع النشر (المفضلة) |
| أدوات الموضوع | |
| تقييم هذا الموضوع | |
|
|
