CAS: 10326-21-3; Magnesium,Dichlorate

专利信息

专利号:US-2009198084-A1
优先权日:2006-05-02
标题:Process for the deprotection of protected amines
发明人：ALSTERS PAULUS LAMBERTUS; VERKADE JORGE MERIJN MATHIEU; QUAEDFLIEG PETER JAN LEONARD MARIO; RUTJES FLORIS PETRUS JOHANNES
权利人:ALSTERS PAULUS LAMBERTUS; VERKADE JORGE MERIJN MATHIEU; QUAEDFLIEG PETER JAN LEONARD MARIO; RUTJES FLORIS PETRUS JOHANNES
摘要:The present invention relates to a process for the deprotection of protected amine compounds, wherein the protected amine compound is contacted with an electrophilic oxidating agent that is optionally formed in situ, said electrophilic oxidating agent being selected from the group of I 2 , Br 2 , Cl 2 and compounds comprising a halogen atom having a formal oxidation state of 1+, 3+, 5+ or 7+, provided that the electrophilic oxidating agent is not iodobenzene diacetate. The process can be conveniently employed in the synthesis of 1,3-amino alcohols, β-amino acids and heterocyclic compounds, in particular β-amino acids.

专利号:WO-2015132246-A1
优先权日:2014-03-04
标 题:Catalyst for fischer-tropsch synthesis and method for the production thereof, said catalyst containing a carrier material based on pyrogenic silicic acid modified with magnesium
发明人：ZIPP ALEXANDER
权利人:WACKER CHEMIE AG
摘要:The invention relates to a catalyst for Fischer-Tropsch synthesis, comprising a carrier material based on pyrogenic silicic acid. The carrier material has a specific surface area of 30 to 500 m 2 /g and a monomodal pore radius distribution having a maximum in the range of 5 to 30 nm and contains at least one catalytically active component selected from the group of cobalt and iron. The catalyst is characterized in that the carrier material contains 0.01 to 5.0 wt% magnesium.

专利号:US-5324497-A
优先权日:1992-02-26
标 题:Integrated procedure for high yield production of chlorine dioxide and apparatus used therefor
发明人：WESTERLUND G OSCAR
权利人:WESTERLUND G OSCAR
摘要:A novel continuous process and system are provided for the production of chlorine dioxide at favorable economics and high efficiency. The process involves effecting electrolysis of an aqueous solution of alkali metal chloride, in an electrolysis zone, to form an aqueous solution of alkali metal chlorate having a chlorate ion concentration of about 400 to about 1,200 g/L, and a chloride ion concentration of about 90 to about 120 g/L, gaseous hydrogen and water vapor. Hydrogen is conducted to a hydrogen chloride synthesis system where it reacts with chlorine gas, (recycled, as well as make-up,) to yield hydrogen chloride gas which is quenched with water to provide hydrochloric acid. A solution of alkali metal chlorate is conducted from the electrolysis zone to the chlorine dioxide generating zone. The chemical reaction is between an all scale metal chlorate concentration of about 400 to about 1,200 g/L and an alkali metal chloride concentration of about 90 to about 120 g/L and over about 90 g/L chloride ion concentration. The reaction is driven by the high chlorate and chloride ion concentrations, high reacting temperature and with the hydrochloric acid injected through multi-capillary tubes at high velocity. The reaction provides chlorine dioxide gas with some by-product chlorine, which is at least in part separated by an auxiliary chlorine dioxide absorbing in-loop system. The unreacted chlorate/chloride solution from the chlorine dioxide generator is recycled to the electrolysis zone. The alkali metal is sodium or lithium at the very high chlorate ion concentrations. The method includes methods for recovering chlorine as gas or an equivalent chloride for recycling within the process system.

专利号:US-4755266-A
优先权日:1986-07-11
标题:Process for silver cathode activation
发明人：BON CHARLES K; KNOWLES VERA M
权利人:DOW CHEMICAL CO
摘要:Silver cathodes used in electrochemical synthesis are activated or reactivated after a period of use by immersion in a dilute alkaline aqueous solution of a compatible oxidizing agent. Thus, an expanded silver sheet cathode in an electrolytic cell used for the conversion of 3,4,5,6-tetrachloropicolinic acid to the herbicide 3,6-dichloropicolinic acid was reactivated by circulating an aqueous solution containing about 0.5 percent sodium hypochlorite and about 2 percent sodium hydroxide through the cell.

专利号:CN-107381651-A
优先权日:2017-08-25
标 题:A low-cost synthesis process of amorphous iron oxyhydroxide