300 Questions on the Production Technology of (Ortho) Nitro Compounds

First of all, the title of this book seems wrong; is it confirmed that such a book exists? What is the full title? What does (ortho)nitro mean, ***? This post was last edited by zxh6267 on 2009-3-9 09:02.]

That’s the title of the book: Technical Information on the Production of o-Nitrochlorobenzene. I hope fellow netizens can provide it

The nitrochlorobenzene plant produces both o-nitrochlorobenzene and p-nitrochlorobenzene as isomers. At the current level of technology in China, it is practically impossible to adjust the ratio of these isomers; the ratio between p-nitrochlorobenzene and o-nitrochlorobenzene is roughly 2:1. Additionally, a small amount of m-nitrochlorobenzene is also produced. 　　 Due to the relatively small production volume of o-nitrochlorobenzene, coupled with the rapid development of downstream products derived from it in recent years, from 2001 to the first quarter of 2005, the domestic market for o-nitrochlorobenzene saw strong demand and supply, resulting in stable prices that fluctuated around 9,000 yuan per ton. Since 2001, there has been a surplus supply of p-nitrochlorobenzene, leading to a continuous decline in its price. From 2001 to the beginning of 2004, the price of p-nitrochlorobenzene remained below 5,000 yuan per ton, while in 2002 it was below 3,000 yuan per ton throughout the year. In 2004, due to a sharp rise in the price of the raw material benzene, the price of p-nitrochlorobenzene began to rise only slowly. From the second half of 2004 to the beginning of 2005, p-nitrochlorobenzene reached unusually high prices. By the second quarter of 2005, there was a severe oversupply of both p-nitrochlorobenzene and o-nitrochlorobenzene, leading to a drop in their prices; by the end of 2005, these prices had reached their lowest levels. From January to May 2006, prices remained low, with significant resistance to any upward movement in prices. 　　Despite low prices, the production capacity of downstream products was expanding rapidly; as a result, in 2005 the major manufacturers maintained an average operating rate of around 82%, with production reaching 382 kt/a. Among them, para- and o-nitrophenol series products (including paracetamol, o-aminophenol, etc.) consume 78 kt of nitrochlorobenzene ； Yes, 57.5 kt of o-chloroaniline was consumed ； Yes, o-aminobenzyl(ethyl) ether series products (including o-, p-*** methyl ethers ； Hydroxybenzyl ether, etc.) consume 37kt ； Products derived from o- and p-***amines (including o-phenylenediamine, etc.) account for 70 kt in consumption ； ***17kt of benzene chloride was consumed ； 3,3’-Dichlorobenzidine consumption: 12kt ； Chlorofluorobenzenes and fluorinated aniline products (including 2,4-dichlorochlorobenzene ； Phenylamines such as o- and p-fluorophenylamine, etc.) consume 12kt ； 8kt of p-aminodiphenylamine was consumed ； The consumption and export of other products were approximately 90.5 kt. 　　With the increase in China’s production capacity for nitrochlorobenzene and the improvement of technical standards, export growth has been sluggish, showing a situation of severe overcapacity ； Competitive pressure comes from within the country ； Hope should not be placed entirely on factors such as a rapid increase in the volume of product exports. Since the first quarter of 2005, the nitrochlorobenzene market has been sluggish. The main factors restricting its future development include: firstly, in order to remain competitive, many companies rely on expanding their production capacity, which leads to a rapid increase in production capacity and consequently a situation of supply exceeding demand ； Secondly, the implementation of the EU’s regulations on the registration, assessment, authorization, and restriction of chemicals is approaching. The Reach regulation has a particular impact on dyes, traditional medicines, pesticides, and their intermediates. At present, the total value of chemical products exported from China to the EU amounts to 4.419 billion US dollars, with the majority of these being dyes, medicines, pesticides, and various intermediates. Approximately 70% of the total production of nitrochlorobenzene is used in dyes, traditional medicines, and pesticides; therefore, the implementation of the REACH regulation will affect the export of downstream products derived from nitrochlorobenzene to a certain extent. Third, as of January 1, 2007, the use of five highly toxic organophosphorus pesticides was completely banned; some of these pesticides are synthesized using nitrochlorobenzene as a starting material ； Fourthly, many downstream products of nitrochlorobenzene face severe constraints on their production and development due to outdated synthesis processes and serious environmental pollution. Many of these downstream products are reduced using iron powder, alkaline sulfide, or hydrazine hydrate; few are produced through catalytic hydrogenation. In recent years, numerous facilities for processing nitrochlorobenzene have had to close down because of the severe environmental damage they cause ； Fifthly, the raw material pathways for some products have changed. For example, p-aminodiphenylamine is one of the main downstream products of p-nitrochlorobenzene. With the successful development in China of cleaner processes for synthesizing p-aminodiphenylamine using *** as a substitute for p-nitrochlorobenzene as a raw material, the major manufacturers of p-aminodiphenylamine have accelerated the development and application of these technologies. As a result, the pathway using p-nitrochlorobenzene is gradually being phased out, and its consumption in the field of rubber additives will decrease significantly ； In addition, many products synthesized from p- and o-nitrochlorobenzene now use o-dichlorobenzene as the starting material. From January to May 2006, although the main manufacturers of chlorobenzene and nitrochlorobenzene maintained high production rates, prices had dropped to their lowest levels. These companies suffered losses on nitrochlorobenzene production, the economic efficiency of their facilities was poor, and some products accumulated as excess stock. Looking ahead to the second half of 2006, assuming no significant fluctuations in the price of crude benzene, it will be difficult for the prices of nitrochlorobenzene and chlorobenzene to rise; they will remain at low levels. This post was last edited by zxh6267 on 2009-3-9 10:51.]

Yes, do you have it? If there is an electronic version, please provide it. If there is a book, please help me purchase one. Thank you in advance

Are you looking for the book \"300 Questions on the Production Technology of (Ortho) Nitro Compounds\" written by Li Xinglun? I have one, but not in digital form. Are you involved in the production of o-nitro compounds? We can communicate

I have the electronic version. Contact me on QQ783327006