CAS: 1120-04-3; Sodiumn-Octadecylsulfate

相似化合物

151-21-3 151-21-3 1191-50-0

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CAS号112-92-5 硬脂醇 | CAS号112-92-5 硬脂醇 | CAS号66186-21-8 di°Ctadecyl sulfate

专利信息

专利号:US-12383499-B2
优先权日:2018-01-01
标题:Scale up synthesis of silicasome nanocarriers
发明人：NEL ANDRE E; MENG HUAN; LIU XIANGSHENG
权利人:UNIV CALIFORNIA
摘要:In order to facilitate the approval and commercialization of silicasome drug delivery systems (e.g. irinotecan silicasomes) it is necessary to scale up synthesis of the drug-loaded silicasomes. In this regard, it was discovered that the synthesis protocols used for laboratory synthesis of drug-loaded silicasomes (e.g., 500 mg/batch) do not scale to large scale silicasome production, because the resulting products were too heterogeneous for use as pharmaceuticals. Accordingly, new methods are provided herein that effectively afford the large-scale production of mesoporous silica nanoparticles (MSNPs) and lipid bilayer coated MSNPs (silicasomes).

专利号:US-4303627-A
优先权日:1976-11-11
标题:Crystalline zeolite powder of type A (VI)
发明人：STRACK HANS; ROEBKE WOLFGANG; KNEITEL DIETER; PARR EHRFRIED
权利人:DEGUSSA; HENKEL KGAA
摘要:There are produced crystalline zeolite powders of Type A with the composition 1.0+/-0.2 M2/nO:Al2O3:1.85+/-0.5 SiO2xy H2O where M is a metal cation, n is its valence and y has a value up to 6 with 50 weight % of the particles not over 5.9 mu and with a particle spectrum -Fraction ( mu ) Portion (weight %) -<3 15 to 25 -<5 35 to 55 -<10 80 to 94 -<15 96 to 100 - by hydrothermally crystallizing a SiO2, Al2O3, Na2O and water containing alkali aluminate, water, silicate synthesis mixture with an optional tempering step wherein in a given case during the crystallization or tempering step instead of stirring shearing forces are employed. The process comprises providing water in a container, simultaneously feeding into the water at a temperature of 30 DEG to 100 DEG C. an aqueous sodium aluminate liquor containing 100 to 200 grams/l of Na2O and 50 to 150 grams/l of Al2O3 and alkali silicate solution, diluting with water to obtain a gel containing synthesis premixture having the composition SiO2/Al2O3=2 to 50:1, Na2O/SiO2=0.2 to 20:1 and H2O/Na2O=4 to 300:1 adding further sodium aluminate liquor of the same composition and water having a temperature of 10 DEG to 100 DEG C. with stirring and allowing the thus obtained synthesis mixture to crystallize at a temperature within between 20 DEG and 175 DEG C. in at least 15 minutes.

专利号:US-4305916-A
优先权日:1976-11-11
标 题:Crystalline zeolite powder of type A (III)
发明人：STRACK HANS; ROEBKE WOLFGANG; KNEITEL DIETER; PARR EHRFRIED
权利人:DEGUSSA; HENKEL KGAA
摘要:There are produced crystalline zeolite powders of Type A with the composition 1.0+/-0.2M2/nO:Al2O3:1.85+/-0.5SiO2.yH2O where M is a metal cation, n is it valence and y has a value up to 6 with 50 weight % of the particles not over 4.3 mu and with a particle spectrum: -Fraction ( mu ) Portion (weight %) -<3 18 to 38 -<5 70 to 82 -<10 93 to 99 -<15 96 to 100 - by hydrothermally crystallizing a SiO2, Al2O3, Na2O and water containing alkali aluminate, water, silicate synthesis mixture with an optional tempering step wherein in a given case during the crystallization or tempering step instead of stirring shearing forces are employed. The process comprises providing an aqueous alkali aluminate liquor having a temperature of 30 DEG to 100 DEG C. and containing 0.1 to 100 grams of Al2O3/l and 1 to 200 grams of Na2O/l, feeding in an alkali silicate solution within 10 to 200 minutes to obtain a clear reaction solution having the composition SiO2/Al2O3=50 to 1000:1, Na2O/SiO2=0.2 to 20:1 and H2O/Na2O=4 to 300:1, adding with stirring to the synthesis mixture an aqueous sodium aluminate which contains 10 to 200 grams/l of Al2O3 and 10 to 250 grams/l of Na2O having a temperature of 30 DEG to 100 DEG C. and allowing the thus obtained synthesis mixture to crystallize at a temperature within between 20 DEG and 175 DEG C. in at least 15 minutes.

专利号:US-4303626-A
优先权日:1976-11-11
标 题 :Crystalline zeolite powder of type A (V)
发明人：STRACK HANS; ROEBKE WOLFGANG; KNEITEL DIETER; PARR EHRFRIED
权利人:DEGUSSA; HENKEL KGAA
摘要:There are produced crystalline zeolite powders of Type A with the composition 1.0+/-0.2 M2/nO:Al2O3:1.85+/-0.5 SiO2xy H2O where M is a metal cation, n is its valence and y has a value up to 6 with 50 weight % of the particles not over 6.2 mu and with a particle spectrum: -Fraction ( mu ) Portion (weight %) -<3 10 to 60 -<5 25 to 95 -<10 80 to 99 -<15 92 to 100 - by hydrothermally crystallizing a SiO2, Al2O3, Na2O and water containing alkali aluminate, water, silicate synthesis mixture with an optional tempering step wherein in a given case during the crystallization or tempering step instead of stirring shearing forces are employed. The process comprises providing an aqueous alkali aluminate liquor having a temperature of 50 DEG to 90 DEG C. and containing 0.1 to 100 grams of Al2O3/l and 1 to 200 grams of Na2O/l, feeding in with stirring an alkali silicate solution, to the turbid reaction mixture having the composition SiO2/Al2O3=2 to 50:1, Na2O/SiO2=0.2 to 20:1 and H2O/NaO=4 to 300:1, adding with stirring in two steps an aqueous sodium aluminate which contains 10 to 200 grams/l ot Al2O3 and 10 to 250 grams/l of Na2O and having a temperature of 10 DEG to 100 DEG C. and allowing the thus obtained synthesis mixture to crystallize at a temperature within between 20 DEG and 175 DEG inside at least 15 minutes.

专利号:US-4303629-A
优先权日:1976-11-11
标题 :Crystalline zeolite powder of type A (I)
发明人：STRACK HANS; ROEBKE WOLFGANG; KNEITEL DIETER; PARR EHRFRIED
权利人:DEGUSSA; HENKEL KGAA
摘要:There are produced crystalline zeolite powders of Type A with the composition 1.0+/-0.2 M2/nO:Al2O3:1.85+/-0.5 SiO2xy H2O where M is a metal cation, n is its valence and y has a value up to 6 with 50 weight % of the particles not over 4.0 mu and with a particle spectrum -Fraction ( mu ) Portion (weight %) -<3 35 to 60 -<5 82 to 95 -<10 93 to 99 -<15 96 to 100 - by hydrothermally crystallizing a SiO2, Al2O3, Na2O and water containing alkali aluminate, water, silicate synthesis mixture with optionally a tempering step wherein in a given case during the crystallization or tempering step instead of stirring shearing forces are employed. The process comprises providing an aqueous alkali silicate soluton, heating it to a temperature between 30 DEG and 80 DEG C., adding to the alkali silicate solution with stirring aqueous sodium aluminate having a content of 0.1 to 100 grams Al2O3/l and 1 to 200 grams Na2O/l and which had been pre-warmed to from 30 DEG to 100 DEG C. until the turbidity point of the reaction mixture within 10 to 60 minutes, adding with stirring to the turbid reaction mixture which had the composition SiO2/Al2O3=2 to 50:1, Na2O/SiO2=0.2 to 20:1 and H2O/Na2O=4 to 300:1 an aqueous sodium aluminate which contains 10 to 200 grams/l of Al2O3 and 10 to 250 grams/l of Na2O having a temperature of 10 DEG to 100 DEG C. and allowing the thus obtained synthesis mixture to crystallize at a temperature within between 20 DEG and 175 DEG C. in at least 15 minutes.

专利号:US-4073867-A
优先权日:1975-04-18
标 题 :Process for the production of crystalline zeolitic molecular sieves of type A
发明人：ROEBKE WOLFGANG; KNEITEL DIETER; PARR ERFRIED
权利人:DEGUSSA
摘要:A crystalline zeolitic molecular sieve of Type A with the composition 1.0 +/- 0.2 M2/nO : Al2O3 : 1.85 +/- 0.5 SiO2 . y H2O where M is a metal cation, n its valence and y has a value up to 6 is prepared having particles with at least 99.5 weight % below 30 mu diameter, as well as at least 90 weight % under 10 mu and with 50 weight % below 6.5 mu by hydrothermal crystallization of an alkali-aluminate silicate by pouring together an aqueous alkali silicate solution and a slightly concentrated aqueous alkali aluminate liquor, in a given case with simultaneous stirring in a receiver, allowing the synthesis premixture to solidify to a gel, adding to this gel a more highly concentrated aqueous alkali aluminate liquor at a temperature between 10 DEG and 100 DEG C. while stirring, allowing the thus obtained synthesis mixture to crystallize at a temperature between 20 DEG and 175 DEG C., preferably 100 DEG C., within 15 minutes and in a given case including a tempering step.