90,449 research outputs found
Adsorption of Lead Ions by Linde type F(K) Zeolite
The Test was to examine the adsorption property of Pb(II) irons by Linde type F (K) zeolite. The zeolite was synthesized by fly ash. The adsorbent dosage, pH, reaction temperature and reaction time were investigated. The adsorption isotherm and adsorption kinetics equation were studied. The results showed the adsorbent dosage, pH, reaction temperature and reaction time had significant effects on the adsorption of Pb(II) irons. The removal rate was improved with the increasing of zeolite dosage. The saturated adsorption capacity was decreased gradually. The adsorption of Pb(II) irons tended to saturate when initial pH was 6. With the increasing of temperature, the equilibration time of adsorption was shorter. Langmuir isotherm was more applicable to explain the monolayer adsorption procedure of Pb(II) on Linde type F(K) zeolite. For adsorption kinetics, pseudo-second order model showed better calculation results
Linde Philippines: a strategic analysis
Linde has been in existence in the Philippines for decades already and has established relationships with its clientele. Many locals have been acquainted with the brand name, as the company is always involved in humanitarian missions such as medical, dental, relief goods distributions during natural calamities, and many others. The company is well known in the healthcare industry as provider of excellent services. Its leadership in the market creates an image of what an ethical firm look like. However, these qualities of the Company could banish easily if customer complaints are snowballing, the company cannot provide enough product to its customers, and late product delivery because of lack of resources. The issues at Linde (Philippines) should be attended immediately as the company will be at risk of losing its customers. As earlier identified, it is highly recommended to build an additional capacity to address the unpredictable demand in the market. The Company has already been suffering from product shortage for a long time. The existing outsourcing strategy pose a credible threat to the company as it expose customer information to its competitors. More so, the company's reliability may certainly be called into question. Philippine economy is progressing and it is expected that many investors will expand their operations in the country. When this happens, Linde (Philippines) should be prepared to support and provide the needs of its future customers. Linde (Philippines) management team will face more challenges in the future. It is important that at the early stage, a strategic plan is already be in place
The f(R) gravity function of the Linde quintessence
AbstractWe calculate the f(R) gravity function in the dual gravity description of the quintessence model with a quadratic (Linde) scalar potential and a positive cosmological constant. We find that in the large curvature regime relevant to chaotic inflation in Early Universe, the dual f(R) gravity is well approximated by the (matter) loop-corrected Starobinsky inflationary model. In the small curvature regime relevant to dark energy in the Present Universe, the f(R) gravity function reduces to the Einstein–Hilbert one with a positive cosmological constant
Study on the Adsorption Properties of Ni(II) by Linde Typr/.ee F(K) Zeolite
The batch experiments were conducted to examine the adsorption properties of Ni(II) ions by synthesizing Linde type F(K) zeolite from coal fly ash. Several important parameters were investigated. The adsorption isotherm and kinetics equation were also discussed. The results showed that, the zeolite doses had obvious effect on the adsorption properties of Ni(II). With the increasing of zeolite doses, the adsorption efficiency was improved significantly, and the saturated adsorption capacity was decreased continuously. The adsorption efficiency increased from 12% to 92% as pH increased from 2.0 to 7.0. With the increasing of temperature and contact time, the adsorption efficiency of Ni(II) ions improved obviously. Langmuir adsorption isotherm and Pseudo- first order model showed better calculation results for the adsorption of Ni(II) on Linde type F (K) zeolite
Study on the Adsorption Properties of Ni(II) by Linde Typr/.ee F(K) Zeolite
The batch experiments were conducted to examine the adsorption properties of Ni(II) ions by synthesizing Linde type F(K) zeolite from coal fly ash. Several important parameters were investigated. The adsorption isotherm and kinetics equation were also discussed. The results showed that, the zeolite doses had obvious effect on the adsorption properties of Ni(II). With the increasing of zeolite doses, the adsorption efficiency was improved significantly, and the saturated adsorption capacity was decreased continuously. The adsorption efficiency increased from 12% to 92% as pH increased from 2.0 to 7.0. With the increasing of temperature and contact time, the adsorption efficiency of Ni(II) ions improved obviously. Langmuir adsorption isotherm and Pseudo- first order model showed better calculation results for the adsorption of Ni(II) on Linde type F (K) zeolite
A luminosity measurement at LEP using the L3 detector
Contains fulltext :
mmubn000001_222480122.pdf (Publisher’s version ) (Open Access)Promotores : P. Duinker, F. Linde en M. MerkIV, 111 p
Removal of Zn2+ in aqueous solution by Linde F (K) zeolite prepared from recycled fly ash
School of Biology and Chemical Engineering, Jiangsu University of Science and Technology,
Zhenjiang 212018, China
E-mail : [email protected]
epartment of City Science, Jiangsu City Vocational College, Nanjing 210036, China
Jiangsu Provincial Academy of Environmental Science, Key Laboratory of Environmental Engineering,
Nanjing 210036, China
Manuscript received online 19 February 2013, revised 27 April 2013, accepted 28 May 2013
Linde F (K) zeolite is used for removing ZnII from aqueous solution. The zeolite is synthesized between fly ash and 8 M KOH solution by hydrothermal process (liquid/solid = 5 and 95 ºC). The XRD and SEM-EDS are used to study zeolite characteristics. The studying experiment parameters are adsorption temperature, zeolite dosage and solution pH. The results show that ZnII removal could be improved by increasing temperature. The optimal solution pH and most efficient zeolite dosage is 7 and 5 g/L respectively. Pseudo-second order model and Langmuir isotherm shows better calculation results for the adsorption of ZnII on Linde F (K). The endothermic adsorption process is spontaneous and the adsorption becomes more spontaneous with temperature increasing
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