The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Zhiqun Guo - One of the best experts on this subject based on the ideXlab platform.
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umbrella structure trisiloxane surfactant synthesis and application for reverse flotation of phosphorite ore in Phosphate Fertilizer production
Journal of Agricultural and Food Chemistry, 2020Co-Authors: Zhiqiang Huang, Shiyong Zhang, Hongling Wang, Rukuan Liu, Chen Cheng, Zuwen Liu, Zhiqun GuoAbstract:Phosphorite is generally used in the manufacture of Phosphate Fertilizer and plays a vital role in the development of agricultural and food production. Nonetheless, how to obtain phosphorite concentrates efficiently and sustainably has become an urgent problem. In this study, a newly designed trisiloxane surfactant, N-(2-Aminoethyl)-3-aminopropyltrisiloxane (AATS), has been prepared and utilized as an emerging collector for reverse flotation of phosphorite ore. Its collecting ability was compared with the conventional surfactant 1-dodecamine (DDA). In the collector concentration tests, AATS with lower concentrations showed stronger collecting ability for quartz. In the pH tests, AATS always performed better than DDA in the acidic or alkaline condition. In bench-scale flotation experiments, the P2O5 recovery of phosphorite concentrates with 150 g/t AATS was 10.77% higher than that with 300 g/t DDA, which proved that AATS can be applied to the sustainable production of phosphorite concentrates. For a 4000 t/d phosphorite ore processing plant, the profit could be increased 7,014,702.07 USD every year by using AATS as the collector. Therefore, this work provides a promising approach to enhance the production efficiency of Phosphate Fertilizer and to promote the sustainable development of agriculture.
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umbrella structure trisiloxane surfactant synthesis and application for reverse flotation of phosphorite ore in Phosphate Fertilizer production
Journal of Agricultural and Food Chemistry, 2020Co-Authors: Zhiqiang Huang, Shiyong Zhang, Hongling Wang, Rukuan Liu, Chen Cheng, Zuwen Liu, Zhiqun GuoAbstract:Phosphorite is generally consumed for the manufacture of Phosphate Fertilizer and plays a vital role in the development of agricultural and food production. Nonetheless, how to obtain phosphorite c...
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utilization of a new gemini surfactant as the collector for the reverse froth flotation of Phosphate ore in sustainable production of Phosphate Fertilizer
Journal of Cleaner Production, 2019Co-Authors: Zhiqiang Huang, Chen Cheng, Zuwen Liu, Huiqiang Zeng, Bo Feng, Hong Zhong, Wuhui Luo, Zhiqun GuoAbstract:Abstract An effective collector plays a vital role in the reverse flotation of Phosphate ore as well as sustainable production of Phosphate Fertilizer. Phosphate Fertilizer is used to achieve the sustainable increase in the production of food. Phosphate ore is concentrated by reverse froth flotation and used as a raw material to produce Phosphate Fertilizer in industry. However, all the surfactants used in the Phosphate ore reverse flotation process are conventional monomeric surfactants contain a single similar hydrophobic group in the molecule, which results in a low production efficiency and severe environmental contamination. In this work, a novel Gemini surfactant, N,N′-bis(dodecyldimethyl)-1,4-butane diammonium dibromide (BDBD) was prepared, and originally recommended as a collector for reverse froth flotation separation of silicoide from Phosphate ore. The performance of BDBD was compared with the results acquired using its conventional monomeric surfactant dodecylamine hydrochloride (DAH). The bench-scale flotation results showed that BDBD had excellent collecting power for silicoide and significant selectivity against apatite at pH 9. Moreover, BDBD presented stronger desilication efficiency than DAH. Achieving the superior flotation performance (P2O5 recovery increased by 2.41%, P2O5 content increased by 0.26%, and SiO2 content reduced by 2.52%), the dosage of Gemini type BDBD collector (100 g/t) is four times less than that of monomeric DAH collector (400 g/t). Therefore, this work provides a promising approach to the sustainable Phosphate Fertilizer production and to address global food security concerns.
Zhiqiang Huang - One of the best experts on this subject based on the ideXlab platform.
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umbrella structure trisiloxane surfactant synthesis and application for reverse flotation of phosphorite ore in Phosphate Fertilizer production
Journal of Agricultural and Food Chemistry, 2020Co-Authors: Zhiqiang Huang, Shiyong Zhang, Hongling Wang, Rukuan Liu, Chen Cheng, Zuwen Liu, Zhiqun GuoAbstract:Phosphorite is generally used in the manufacture of Phosphate Fertilizer and plays a vital role in the development of agricultural and food production. Nonetheless, how to obtain phosphorite concentrates efficiently and sustainably has become an urgent problem. In this study, a newly designed trisiloxane surfactant, N-(2-Aminoethyl)-3-aminopropyltrisiloxane (AATS), has been prepared and utilized as an emerging collector for reverse flotation of phosphorite ore. Its collecting ability was compared with the conventional surfactant 1-dodecamine (DDA). In the collector concentration tests, AATS with lower concentrations showed stronger collecting ability for quartz. In the pH tests, AATS always performed better than DDA in the acidic or alkaline condition. In bench-scale flotation experiments, the P2O5 recovery of phosphorite concentrates with 150 g/t AATS was 10.77% higher than that with 300 g/t DDA, which proved that AATS can be applied to the sustainable production of phosphorite concentrates. For a 4000 t/d phosphorite ore processing plant, the profit could be increased 7,014,702.07 USD every year by using AATS as the collector. Therefore, this work provides a promising approach to enhance the production efficiency of Phosphate Fertilizer and to promote the sustainable development of agriculture.
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umbrella structure trisiloxane surfactant synthesis and application for reverse flotation of phosphorite ore in Phosphate Fertilizer production
Journal of Agricultural and Food Chemistry, 2020Co-Authors: Zhiqiang Huang, Shiyong Zhang, Hongling Wang, Rukuan Liu, Chen Cheng, Zuwen Liu, Zhiqun GuoAbstract:Phosphorite is generally consumed for the manufacture of Phosphate Fertilizer and plays a vital role in the development of agricultural and food production. Nonetheless, how to obtain phosphorite c...
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utilization of a new gemini surfactant as the collector for the reverse froth flotation of Phosphate ore in sustainable production of Phosphate Fertilizer
Journal of Cleaner Production, 2019Co-Authors: Zhiqiang Huang, Chen Cheng, Zuwen Liu, Huiqiang Zeng, Bo Feng, Hong Zhong, Wuhui Luo, Zhiqun GuoAbstract:Abstract An effective collector plays a vital role in the reverse flotation of Phosphate ore as well as sustainable production of Phosphate Fertilizer. Phosphate Fertilizer is used to achieve the sustainable increase in the production of food. Phosphate ore is concentrated by reverse froth flotation and used as a raw material to produce Phosphate Fertilizer in industry. However, all the surfactants used in the Phosphate ore reverse flotation process are conventional monomeric surfactants contain a single similar hydrophobic group in the molecule, which results in a low production efficiency and severe environmental contamination. In this work, a novel Gemini surfactant, N,N′-bis(dodecyldimethyl)-1,4-butane diammonium dibromide (BDBD) was prepared, and originally recommended as a collector for reverse froth flotation separation of silicoide from Phosphate ore. The performance of BDBD was compared with the results acquired using its conventional monomeric surfactant dodecylamine hydrochloride (DAH). The bench-scale flotation results showed that BDBD had excellent collecting power for silicoide and significant selectivity against apatite at pH 9. Moreover, BDBD presented stronger desilication efficiency than DAH. Achieving the superior flotation performance (P2O5 recovery increased by 2.41%, P2O5 content increased by 0.26%, and SiO2 content reduced by 2.52%), the dosage of Gemini type BDBD collector (100 g/t) is four times less than that of monomeric DAH collector (400 g/t). Therefore, this work provides a promising approach to the sustainable Phosphate Fertilizer production and to address global food security concerns.
Zuwen Liu - One of the best experts on this subject based on the ideXlab platform.
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umbrella structure trisiloxane surfactant synthesis and application for reverse flotation of phosphorite ore in Phosphate Fertilizer production
Journal of Agricultural and Food Chemistry, 2020Co-Authors: Zhiqiang Huang, Shiyong Zhang, Hongling Wang, Rukuan Liu, Chen Cheng, Zuwen Liu, Zhiqun GuoAbstract:Phosphorite is generally used in the manufacture of Phosphate Fertilizer and plays a vital role in the development of agricultural and food production. Nonetheless, how to obtain phosphorite concentrates efficiently and sustainably has become an urgent problem. In this study, a newly designed trisiloxane surfactant, N-(2-Aminoethyl)-3-aminopropyltrisiloxane (AATS), has been prepared and utilized as an emerging collector for reverse flotation of phosphorite ore. Its collecting ability was compared with the conventional surfactant 1-dodecamine (DDA). In the collector concentration tests, AATS with lower concentrations showed stronger collecting ability for quartz. In the pH tests, AATS always performed better than DDA in the acidic or alkaline condition. In bench-scale flotation experiments, the P2O5 recovery of phosphorite concentrates with 150 g/t AATS was 10.77% higher than that with 300 g/t DDA, which proved that AATS can be applied to the sustainable production of phosphorite concentrates. For a 4000 t/d phosphorite ore processing plant, the profit could be increased 7,014,702.07 USD every year by using AATS as the collector. Therefore, this work provides a promising approach to enhance the production efficiency of Phosphate Fertilizer and to promote the sustainable development of agriculture.
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umbrella structure trisiloxane surfactant synthesis and application for reverse flotation of phosphorite ore in Phosphate Fertilizer production
Journal of Agricultural and Food Chemistry, 2020Co-Authors: Zhiqiang Huang, Shiyong Zhang, Hongling Wang, Rukuan Liu, Chen Cheng, Zuwen Liu, Zhiqun GuoAbstract:Phosphorite is generally consumed for the manufacture of Phosphate Fertilizer and plays a vital role in the development of agricultural and food production. Nonetheless, how to obtain phosphorite c...
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utilization of a new gemini surfactant as the collector for the reverse froth flotation of Phosphate ore in sustainable production of Phosphate Fertilizer
Journal of Cleaner Production, 2019Co-Authors: Zhiqiang Huang, Chen Cheng, Zuwen Liu, Huiqiang Zeng, Bo Feng, Hong Zhong, Wuhui Luo, Zhiqun GuoAbstract:Abstract An effective collector plays a vital role in the reverse flotation of Phosphate ore as well as sustainable production of Phosphate Fertilizer. Phosphate Fertilizer is used to achieve the sustainable increase in the production of food. Phosphate ore is concentrated by reverse froth flotation and used as a raw material to produce Phosphate Fertilizer in industry. However, all the surfactants used in the Phosphate ore reverse flotation process are conventional monomeric surfactants contain a single similar hydrophobic group in the molecule, which results in a low production efficiency and severe environmental contamination. In this work, a novel Gemini surfactant, N,N′-bis(dodecyldimethyl)-1,4-butane diammonium dibromide (BDBD) was prepared, and originally recommended as a collector for reverse froth flotation separation of silicoide from Phosphate ore. The performance of BDBD was compared with the results acquired using its conventional monomeric surfactant dodecylamine hydrochloride (DAH). The bench-scale flotation results showed that BDBD had excellent collecting power for silicoide and significant selectivity against apatite at pH 9. Moreover, BDBD presented stronger desilication efficiency than DAH. Achieving the superior flotation performance (P2O5 recovery increased by 2.41%, P2O5 content increased by 0.26%, and SiO2 content reduced by 2.52%), the dosage of Gemini type BDBD collector (100 g/t) is four times less than that of monomeric DAH collector (400 g/t). Therefore, this work provides a promising approach to the sustainable Phosphate Fertilizer production and to address global food security concerns.
Chen Cheng - One of the best experts on this subject based on the ideXlab platform.
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umbrella structure trisiloxane surfactant synthesis and application for reverse flotation of phosphorite ore in Phosphate Fertilizer production
Journal of Agricultural and Food Chemistry, 2020Co-Authors: Zhiqiang Huang, Shiyong Zhang, Hongling Wang, Rukuan Liu, Chen Cheng, Zuwen Liu, Zhiqun GuoAbstract:Phosphorite is generally used in the manufacture of Phosphate Fertilizer and plays a vital role in the development of agricultural and food production. Nonetheless, how to obtain phosphorite concentrates efficiently and sustainably has become an urgent problem. In this study, a newly designed trisiloxane surfactant, N-(2-Aminoethyl)-3-aminopropyltrisiloxane (AATS), has been prepared and utilized as an emerging collector for reverse flotation of phosphorite ore. Its collecting ability was compared with the conventional surfactant 1-dodecamine (DDA). In the collector concentration tests, AATS with lower concentrations showed stronger collecting ability for quartz. In the pH tests, AATS always performed better than DDA in the acidic or alkaline condition. In bench-scale flotation experiments, the P2O5 recovery of phosphorite concentrates with 150 g/t AATS was 10.77% higher than that with 300 g/t DDA, which proved that AATS can be applied to the sustainable production of phosphorite concentrates. For a 4000 t/d phosphorite ore processing plant, the profit could be increased 7,014,702.07 USD every year by using AATS as the collector. Therefore, this work provides a promising approach to enhance the production efficiency of Phosphate Fertilizer and to promote the sustainable development of agriculture.
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umbrella structure trisiloxane surfactant synthesis and application for reverse flotation of phosphorite ore in Phosphate Fertilizer production
Journal of Agricultural and Food Chemistry, 2020Co-Authors: Zhiqiang Huang, Shiyong Zhang, Hongling Wang, Rukuan Liu, Chen Cheng, Zuwen Liu, Zhiqun GuoAbstract:Phosphorite is generally consumed for the manufacture of Phosphate Fertilizer and plays a vital role in the development of agricultural and food production. Nonetheless, how to obtain phosphorite c...
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utilization of a new gemini surfactant as the collector for the reverse froth flotation of Phosphate ore in sustainable production of Phosphate Fertilizer
Journal of Cleaner Production, 2019Co-Authors: Zhiqiang Huang, Chen Cheng, Zuwen Liu, Huiqiang Zeng, Bo Feng, Hong Zhong, Wuhui Luo, Zhiqun GuoAbstract:Abstract An effective collector plays a vital role in the reverse flotation of Phosphate ore as well as sustainable production of Phosphate Fertilizer. Phosphate Fertilizer is used to achieve the sustainable increase in the production of food. Phosphate ore is concentrated by reverse froth flotation and used as a raw material to produce Phosphate Fertilizer in industry. However, all the surfactants used in the Phosphate ore reverse flotation process are conventional monomeric surfactants contain a single similar hydrophobic group in the molecule, which results in a low production efficiency and severe environmental contamination. In this work, a novel Gemini surfactant, N,N′-bis(dodecyldimethyl)-1,4-butane diammonium dibromide (BDBD) was prepared, and originally recommended as a collector for reverse froth flotation separation of silicoide from Phosphate ore. The performance of BDBD was compared with the results acquired using its conventional monomeric surfactant dodecylamine hydrochloride (DAH). The bench-scale flotation results showed that BDBD had excellent collecting power for silicoide and significant selectivity against apatite at pH 9. Moreover, BDBD presented stronger desilication efficiency than DAH. Achieving the superior flotation performance (P2O5 recovery increased by 2.41%, P2O5 content increased by 0.26%, and SiO2 content reduced by 2.52%), the dosage of Gemini type BDBD collector (100 g/t) is four times less than that of monomeric DAH collector (400 g/t). Therefore, this work provides a promising approach to the sustainable Phosphate Fertilizer production and to address global food security concerns.
Sami Sayadi - One of the best experts on this subject based on the ideXlab platform.
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treatment of wastewaters from Phosphate Fertilizer industry
Environmental Progress, 2014Co-Authors: Mbarka Gouider, M Feki, Sami SayadiAbstract:The Phosphate (P) Fertilizer industry generates a highly hazardous and acidic wastewater. The present study reports the evaluation of an integrated precipitation and Enhanced Biological Phosphorus Removal (EBPR) process for the treatment of Fertilizer plant wastewater and effluent detoxification, assessed by microtoxicity and seed germination tests. Effluent samples were collected from a local P Fertilizer industry and were characterized by their high fluoride and P content. First, the samples were pre-treated by precipitation of P and fluoride ions using hydrated lime. The resulting low-fluoride and phosphorus effluent was then treated with the EBPR process to monitor the simultaneous removal of carbon, nitrogen, and phosphorus. Phosphorus removal included a two-stage anaerobic/aerobic system operating under continuous flow. Pre-treated wastewater was added to the activated sludge and operated for 160 days in the reactor. The operating strategy included increasing the organic loading rate from 0.3 to 1.2 g chemical oxygen demand (COD)/L day. The stable and high removal rates of COD, NH4+-N, and PO43−-P were then recorded. The mean concentrations of the influent were approximately 3600 mg COD/L, 60 mg N/L and 14 mg P/L, which corresponded to removal efficiencies of approximately 98%, 86%, and 92%, respectively. The microtoxicity of the treated wastewater was then monitored by LUMIStox and its phytotoxicity was investigated on cress, tomato, wheat, maize, ryegrass, and alfalfa seed germination. LUMIStox tests showed that treatment allowed a significant toxicity removal. Moreover, the untreated wastewater inhibited the species germination even when diluted 10 times, whereas a positive effect of treated wastewater was noticed. © 2013 American Institute of Chemical Engineers Environ Prog, 33: 463–471, 2014
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bioassay and use in irrigation of untreated and treated wastewaters from Phosphate Fertilizer industry
Ecotoxicology and Environmental Safety, 2010Co-Authors: Mbarka Gouider, M Feki, Sami SayadiAbstract:Abstract Wastewater from Phosphate Fertilizer industry that contains essentially a significant amount of both fluoride and Phosphate was treated by separative precipitation of fluoride ions with hydrated lime. Thus, a Phosphate-rich effluent with low content of fluoride was obtained. The microtoxicity of the treated wastewater was then monitored by LUMIStox and its phytotoxicity was investigated on tomato (Lycopersicon esculentum), wheat (Triticum aestivum), maize (Zea mays), ryegrass (Lolium perenne), and alfalfa (Medicago sativa) seed germination and plant growth. The cress (Lepidium sativum) was used as a standard species for the germination index and phytotoxicity evaluation. Seedlings of four species (namely wheat, maize, ryegrass, and alfalfa) were grown in pots, which were irrigated with untreated wastewater, treated wastewater, aqueous solution of triple superPhosphate Fertilizer (TSP) or with tap water as control. LUMIStox tests showed that lime treatment allowed a significant toxicity removal. The treated water displayed beneficial fertilizing effect on plants. An increase in the germination index from 100% to 119% was observed. However, the untreated wastewater inhibited the species germination even when diluted 10 times. Neither plants mortality nor growth inhibition was observed after 90 days of treated wastewater application. Moreover, an improvement in plant growth, leaf number and a root development were noticed in these plants when compared with those irrigated with tap water or with Fertilizer. In contrast, leaf necrosis and growth inhibition were observed in plants amended with raw wastewater. The irrigation with treated wastewater also improved soil labile P content. Indeed, soils amended with treated wastewater had more a double labile P concentration (38.15 mg kg−1) in comparison with control soil (15.53 mg kg−1).