33 results for “recovery methods”

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Research ArticleOpen accessAll words, across the recordProcess Intensification for Production and Recovery of Biological ProductsHamideh Vaghari, Maryam Eskandari, Vahideh Sobhani et al.Bioprocesses are important biological reactions which need several sophisticated methods and equipment to produce many novel and important compounds which some of them are traditionally produced by synthetic chemical reactions. In bioprocesses, the products are often produced in a dilute environment and finally they require a high purity. Because of that, downstream processes are usually included a large number of … …American Journal of Biochemistry and Biotechnology, Vol. 11, Issue 1 · 29 Jan 2015 · 8,124 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordUtilization of Charge Transfer and Kinetic Methods for the Determination of DoripenemNora H. Al-ShaalanProblem statement: This study presents rapid, uncomplicated and sensitive spectrophotometric techniques for the analysis of doripenem in both its pure and pharmaceutical forms. Approach: The main principle of the approaches and procedures that have been developed is the reaction of doripenem as an n-electron donor to ninhydrin and π-acceptors, such as tetracyanoethylene, 7,7,8,8-tetracyanoquinodimethane, 2,3,5,6-tetrachloro-1,4-benzoquinone, 2,3-dichloro-5,6-dicyano-1,4-benzoquinone and chloranilic acid. The wavelengths … …American Journal of Applied Sciences, Vol. 9, Issue 4 · 10 Feb 2012 · 7,066 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordSulfur Recovery from Acid Gas Using the Claus Process and High Temperature Air Combustion (HiTAC) TechnologyMohamed Sassi, Ashwani K. GuptaSulfur-bearing compounds are very detrimental to the environment and to industrial process equipment. They are often obtained or formed as a by-product of separation and thermal processing of fuels containing sulfur, such as coal, crude oil and natural gas. The two sulfur compounds, which need special attention, are: hydrogen sulfide (H2S) and sulfur dioxide (SO2). H2S is a highly corrosive … …American Journal of Environmental Sciences, Vol. 4, Issue 5 · 31 Oct 2008 · 17,605 accessesView PDF Cite