专利号:US-2007059238-A1 优先权日:2004-01-16 标题:Process for enhancing yield of sodium aluminosilicate molecular sieves during synthesis 发明人:THAKUR RAM M; KUVETTU MOHAN P; SARKAR BISWANATH; KRISHNAN VENKATACHALAM; PATEL MITRA B; RAY SANJAY K; RAVICHANDRAN GOPAL; MAKHIJA SATISH; GHOSH SOBHAN 权利人:THAKUR RAM M; KUVETTU MOHAN P; SARKAR BISWANATH; KRISHNAN VENKATACHALAM; PATEL MITRA B; RAY SANJAY K; RAVICHANDRAN GOPAL; MAKHIJA SATISH; GHOSH SOBHAN 摘要:The present invention relates to a process for enhancing the yield of molecular sieve zeolite during the synthesis from a sodium aluminosilicate reaction mixture, said process comprising the step of adding at an intermediate stage of crystallization a source of aluminum to the sodium aluminosilicate reaction mixture and allowing the mixture to crystallize.
专利号:US-12180089-B2 优先权日:2020-08-10 标 题 :Wet synthesis method for NCMA high-nickel quaternary precursor 发明人:ZHANG BAO; WANG ZHENYU 权利人:ZHEJIANG PAWA NEW ENERGY CO LTD 摘要:In the technical field of lithium ion batteries, disclosed is a wet synthesis method of a high-nickel NCMA quaternary precursor. The method includes synthesizing solid tiny crystal nuclei of the NCMA quaternary precursor in a first reactor, and prompting the crystal nuclei of the quaternary precursor to grow to a certain particle size in a second reactor, wherein in the first reactor, an upper feeding mode is used to continuously produce the solid tiny crystal nuclei of the NCMA quaternary precursor. In the second reactor, an upper-and-lower dual feeding mode is used to prompt the continuous growth of the solid tiny crystal nuclei of the NCMA quaternary precursor. During a washing process, the NCMA quaternary precursor is washed with a mixed alkali solution of sodium carbonate and sodium hydroxide at certain concentration, so that Na can be reduced below 50 ppm and sulfur can be reduced below 800 ppm.
专利号:US-2024384179-A1 优先权日:2023-05-15 标 题:Use of recycled byproducts to create hydrogen for use in conversion of olefins to jet fuel 发明人:BENNETT III ERICK J; JERORO ESEOGHENE 权利人:BENNETT III ERICK J; JERORO ESEOGHENE 摘要:A process for providing hydrogen in a process to produce jet fuel from methanol comprising producing a supply of hydrogen from a hydrogen production unit to be sent to one or more vessels within said process and wherein additional supplies of hydrogen are recovered from a recycle stream or recycle streams from one or more reactors or vessels and sent to supplement the first supply of hydrogen. The additional supplies of hydrogen are recovered from a hydrogenation reactor downstream of an oligomerization reactor, a methanol synthesis reactor or a hydrogenation reactor downstream from a DME water column and sent to the methanol synthesis reactor, hydrogenation reactor or acetylene converter.
专利号:US-2005158237-A1 优先权日:2004-01-16 标题:Process for enhancing yield of sodium aluminosilicate molecular sieves during synthesis 发明人:THAKUR RAM M; KUVETTU MOHAN P; SARKAR BISWANATH; KRISHNAN VENKATACHALAM; PATEL MITRA B; RAY SANJAY K; RAVICHANDRAN GOPAL; MAKHIJA SATISH; GHOSH SOBHAN 权利人:INDIAN OIL CORP LTD 摘要:The present invention relates to a process for enhancing the yield of molecular sieve zeolite during the synthesis from a sodium aluminosilicate reaction mixture, said process comprising the step of adding at an intermediate stage of crystallization a source of aluminum to the sodium aluminosilicate reaction mixture and allowing the mixture to crystallize.
专利号:US-2004045434-A1 优先权日:2002-05-31 标题 :Purification of gas streams using composite adsorbent 发明人:GOLDEN TIMOTHY CHRISTOPHER; TAYLOR FRED WILLIAM; SALTER ELIZABETH HELEN; KALBASSI MOHAMMAD ALI; RAISWELL CHRISTOPHER JAMES 摘要:A process for removing at least water and carbon dioxide from a feed gas stream of air, synthesis gas or natural gas is described, comprising the steps of: contacting the feed gas stream with a composite adsorbent comprising silica and metal oxide, wherein the composite adsorbent contains at least 50 wt % silica, to form a first purified gas stream, and regenerating the composite adsorbent at a temperature of 0 to 200° C. The process optionally further comprises contacting the first purified gas stream with a carbon dioxide adsorbent and/or a nitrous oxide or hydrocarbon adsorbent.
专利号:CN-114516643-A 优先权日:2020-11-18 标 题:A kind of pyridinium quaternary ammonium salt-oriented synthesis of mordenite molecular sieve and preparation method and application
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