Intermediates are also called organic intermediates. Use coal tar or petroleum products as raw materials to manufacture intermediate products such as dyes, pesticides, medicines, resins, additives, plasticizers, etc. Because it was originally used to make dyes, it is also called dye intermediates.
Pharmaceutical supplies
Concept
The so-called Pharmaceutical Intermediates are actually some chemical raw materials or chemical products used in the pharmaceutical synthesis process. This kind of chemical product does not require a production license for drugs, and can be produced in ordinary chemical plants. As long as it reaches some levels, it can be used for the synthesis of drugs.
Effect
Pharmaceutical production requires a lot of special chemicals. Most of these chemicals were originally produced by the pharmaceutical industry. However, with the deepening of social division of labor and the advancement of production technology, the pharmaceutical industry has transferred some pharmaceutical intermediates to chemical companies for production. Pharmaceutical intermediates are fine chemical products, and the production of pharmaceutical intermediates has become a major industry in the international chemical industry.
In cell biology, the intermediate refers to the middle part of the gradually disintegrating spindle around the equatorial plane in the late stage of cell division, and the surrounding cytoplasm concentration increases, filling the entire equatorial plane.
Other Intermediates series,2-Chloropyridine-5-Carbaldehyde,5-Bromo-2-Hydroxynicotinic Acid,2-Chloro-5-Fluoronicotinic Acid,Methyl 4 6-Dichloronicotinate Fuxin Custchem Fine Chemical Co., Ltd. , https://www.custchemvip.com
Acrylic waste water treatment has always been recognized as an environmental problem at home and abroad. It is difficult to completely remove high polymer polymers and it has always been the biggest obstacle in the treatment of acrylic fibers. In order to effectively solve this technical problem, over the years, domestic and foreign experts have put forward a number of treatment options, but it is difficult to meet the emission standards, and some even meet the emission standards, but due to the high cost, it is difficult to promote.
Anqing Petrochemical Acrylic Fiber Factory, which was put into operation earlier in the country, adopted a new process of “air floatation + sludge dewatering system and A/O biochemistry + secondary sedimentation tank treatment + aeration biological filterâ€. With increasingly stringent environmental protection requirements, Anqing Petrochemical invested more than 700 million yuan to build an acrylic fiber wastewater pretreatment plant, to a certain extent, improve the technical level of wastewater treatment of acrylic fibers and sewage treatment capacity.
According to reports, the results of this research mainly deal with the advanced treatment of acrylic fiber wastewater mainly using bio-pure oxygen aeration, A/O and other biological treatment technologies to achieve the mineralization, effective, chain breaking and opening of refractory organic components in acrylic fiber waste water. Ring effect, so as to achieve effective degradation of organic components of acrylic wastewater.
Experts believe that if this research achievement is market-oriented, its economic and social benefits are very significant. Firstly, it will enable enterprises to break away from the pressure of environmental protection and achieve substantial cleaner production. Second, it can save a lot of water resources. The output of tons of acrylic fiber products can reach 20 tons, and the annual total discharge volume can reach over 1 million tons. All can realize the recycling of water resources; once again, significant economic benefits can save a lot of sewage charges.
It is reported that Daqing Petrochemical has already begun to demonstrate the industrial production process of this sewage treatment technology.
Acrylic wastewater treatment technology has a promising future
Heterogeneous Catalytic Ozone Oxidation - Acclimation Aeration Active Filter Treatment of Acrylic Wastewater Technologies The scientific research achievement appraisal meeting was held not long ago in Daqing. Experts believe that the sewage treatment technology and technology will break through the technical bottleneck of acrylic wastewater treatment, and the prospects for industrial production are worth looking forward to.