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1 - Synthesis of nitro-anthraquinone


Anthraquinone-based over 86% purity. 3.4 Control of nitrification reaction end product composition changes with time curve of the next page Figure 2. Figure 2 shows that nitrification late, with the gradual reduction of raw materials, anthraquinone, nitro reaction as the reaction of a raw material for chemical industry in Henan No. 8 of 2002 adhesive preparation and application of cast Zhouji Rui, Yang more shall, Wang Yanlin (Institute of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475001,[link widoczny dla zalogowanych], China) Abstract: The use of residual waste oil plant casting adhesive preparation methods, and thinner, asphalt and other labels were optimized, fabricated, low cost, Jing good adhesive properties. Key words: casting adhesive; preparation; diluent; pitch CLC: TQ437.4 Document code: A Article ID :1003-3467 (2o02) o8-0022-02PreparationandApplicationofAdhesivesAgentforCastingZl Health 0IIJi-rui, YANGGeng-xu, WANGYan -liIl (InstituteofChemisnvandChemicalEngineering, HenanUniversity, Kaifeng475001, China) Abstract: Thepreparationmethodsofadhesivesforcastingbyultilizationofresidualwasteofoilplantarestud-ied. Afteroptimalselectionofdiluentandgradesofasphalt, adhesiveoflowcostandgoodpropertiesispre-paI program. Keywords: adhesivesforcasting; preparation; diluent; asphalt refineries after the presentation of pure oil with the remaining part of the fatty acids and phenolic waste after oil extraction, Kaifeng Grease Chemical Plant; 10 asphalt, industrial and other waste, rancid easily in the air The issue of a hard news industry level, Kaifeng of the light company; desiccant (manganese dioxide), C, P,, days of odor, likely to cause environmental pollution. Our study provided by Tianjin Chemical Reagent three plants; thinner, Kaifeng Chemical Plant. After the waste oil, synthesis of a high viscosity, low-cost 1.2 Preparation of the casting adhesive agent, has issued a small volume, high tensile strength,[link widoczny dla zalogowanych], good collapsibility after burning sand will be left after oil extraction oil plant Sheng joined by a certain percentage of waste and so on. A diluent flask, in stirring the temperature slowly rose to an experimental part of the 100 ~ C to remove water, then add quantitative 10 asphalt,[link widoczny dla zalogowanych], 1.1 to melting of raw materials, holding at this temperature for 2-3h, After all the asphalt to be melting, view \ stirrup Hu device time / h1. 2.1 nitro anthraquinone anthraquinone 3. Dinitro-nitro-anthraquinone anthraquinone 4.2 and reaction time in Figure 2 Relationship between the Composition of rapid nitrification in the year. To avoid difficulties in separating and refining the depth of nitrification caused by the experiment, the tracking experiment with G thin layer chromatography, UV light observation of nitro compounds in the composition changes, control the conversion rate of 92% anthraquinone 95% of a termination reaction, obtained very good results. 3.5 A product analysis the target product 1-nitro anthraquinone structure by GC-MS detection coupled with spectroscopy,[link widoczny dla zalogowanych], Mw = 253,207,151,75 at the molecular ion peak for the characteristic fragment peaks, the spectrum of the target compounds consistent with the standard mass spectra. 4 Conclusion The practical study of the process line, to determine the optimum conditions were: quality of raw material ratio (AQ: 99% nitric acid: 98% sulfuric acid: phosphoric acid: sodium salt) as 1:2.2:1:0.5: 0.02,[link widoczny dla zalogowanych], reaction time 3h, reaction temperature 20 ��. In response to these conditions, a nitro anthraquinone content of 86%. Organic solvent purification step the purity and overall yields were 98.1% and 71.4%.
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