CAS: 7784-31-8; Aluminum Sulfate Octadecahydrate

专利信息

专利号:US-2008311631-A1
优先权日:2004-06-04
标题 :Biosynthetic Production of 4-Amino 4-Deoxychorismate (Adc) and [3R,4R]-4-Amino-3-Hydroxycyclohexa-1,5-Diene-1-Carboxylic Acid (3,4-Cha)
发明人：WUBBOLTS MARCEL GERHARDUS; BOVENBERG ROELOF ARY LANS; SPRENGER GEORG; BONGAERTS JOHANNES JOSEF; KOZAK STEFAN; MULLER MICHAEL; LORBACH VOLKER
权利人:WUBBOLTS MARCEL GERHARDUS; BOVENBERG ROELOF ARY LANS; SPRENGER GEORG; BONGAERTS JOHANNES JOSEF; KOZAK STEFAN; MULLER MICHAEL; LORBACH VOLKER
摘要:The invention relates to a process for the biosynthetic production of 4-amino-4-deoxychorismate (ADC) performed fermentatively in vivo with a 4-amino-4-deoxychorismate synthase, preferably a PabAB bipartite protein (which may be a fusion protein), at an increased level of activity, thereby obtaining a broth comprising ADC and 4-amino-4-deoxyprephenate (ADP), that are recovered. The invention also relates to a further process of converting the ADP into p-aminophenylalanine. The invention, moreover relates to biosynthetic production of [3R,4R]-4-amino-3-hydroxycyclohexa-1,5-diene-1-carboxylic acid (3,4-CHA), by concerted action of such 4-amino-4-deoxychorismate synthase and of an enzyme capable of converting isochorismate into [5S,6S]-5,6 dihydroxycyclohexa-1,3-diene-1-carboxylic acid (2,3-CHD), preferably a phenazine biosynthesis protein PhzD, including recovery of 3,4-CHA. The invention also relates to expression vectors and host cells for use in any of such processes. The invention further relates to the use of 3,4-CHA as a catalytically active product, in particular as a chiral catalyst. And the invention finally relates to synthesis of oseltamivir phosphate from 3,4-CHA.

专利号:US-11591231-B2
优先权日:2020-11-10
标 题:Organotemplate-free synthesis of a zeolite of ton framework type
发明人：SCHMIDT JOEL EDWARD; OJO ADEOLA FLORENCE; CHEN CONG-YAN
权利人:CHEVRON USA INC
摘要:An organotemplate-free synthetic process for the production of a zeolite of TON framework type structure is provided. The process includes the steps of: (1) preparing a mixture comprising: (a) an alumina-coated silica; (b) a source of an alkali metal; (c) an alcohol; (d) a source of hydroxide ions; (e) seed crystals comprising a zeolitic material having a TON framework type structure; and (f) water; and (2) crystallizing the mixture obtained in step (1).

专利号:US-5143583-A
优先权日:1991-04-02
标 题:Preparation and synthesis of magnetic fibers
发明人：MARCHESSAULT ROBERT H; RIOUX PATRICE; RICARD SERGE
权利人:MARCHESSAULT ROBERT H; RIOUX PATRICE; RICARD SERGE
摘要:Magnetic paper-forming fibers have a particulate magnetic material incorporated within the fibers, as distinct from between the fibers; this can be achieved by loading the lumens of cellulosic fibers with magnetic particles or by generating magnetic particles in situ in a paper-forming fiber which contains ionic groups effective for ion exchange with ferrous ions; the fibers can be employed to produce single layer or multi-layererd magnetic papers for information storage, security paper applications, paper handling, reprographic applications such as magnetographic printing substrate as well as for speciality uses such as electromagnetic shielding, magnetic separation of antibodies based on selective adsorption.

专利号:US-10864507-B2
优先权日:2016-05-11
标题:Method for the synthesis of a ZSM-22 zeolite, a metal containing zeolite and its application in hydromerization of long chain n-paraffins
发明人：SONTYANA ANANTH KISHORE KUMAR; MUNUSAMY KUPPUSAMY; GHOSH SAYANTI; PAI SHIVANAND MUKUND; KUMAR LALIT; KASTURE MAHESH WAMANRAO; NEWALKAR BHARAT LAKSHMAN
权利人:BHARAT PETROLEUM CORPORATION LTD
摘要:The present invention provides a process for preparing a zeolite by hydrothermal heating of silica precursor and alumina precursor along with a combination of two structure-directing organic templates, N,N-dimethyl formamide and 1,6-diaminohexane in the presence of an alkali. The use of two structure-directing organic templates, not only reduces the crystallization time but also enables the preparation of more catalytically active ZSM-22 of submicron crystallite size. The present invention also provides a process of preparing a noble metal containing zeolite catalyst for hydroisomerization of long chain n-paraffins.

专利号:US-2025171411-A1
优先权日:2022-03-01
标题:Synthesis of 5-acetoxymethyl furfural in the presence of recyclable salt catalysts
发明人：MELLER ELAD; LEADER AVIA
权利人:CELLUFLUX LTD
摘要:A process for preparing and ester of 5-hydroxymethyl furfural of the formula: (I) wherein R is a linear or branched alkyl or alkenyl, comprising adding to a reaction vessel Ce carbohydrate, organic acid R—COOH and a salt which is at most sparingly soluble in said organic acid to form a reaction mass, heating the reaction mass, allowing the reaction to proceed, separating the salt from the liquid phase and recovering a reaction product comprising an ester of 5-hydroxymethyl furfural.

专利号:US-4534947-A
优先权日:1984-05-04
标 题 :Process for direct synthesis of sodium- and potassium-containing zeolite A
发明人：VAUGHAN DAVID E W
权利人:EXXON RESEARCH ENGINEERING CO
摘要:Zeolite A containing sodium and potassium ions, otherwise known as 3 ANGSTROM molecular sieve, may be prepared by a direct route when the aqueous aluminosilicate reaction mixture to be aged at elevated temperatures contains a mole ratio of Na2O to Na2O and K2O which is greater by a factor of about 1.1 than the mole ratio of Na2O to Na2O and K2O in the zeolite A product. Preferably, the reaction mixture also contains zeolitic nucleation seeds to promote crystallization of the product.