CAS: 1333-83-1; Sodium Hydrogen Difluoride

专利信息

专利号:US-7247287-B2
优先权日:2003-06-11
标 题 :Synthesis of aluminophosphates and silicoaluminophosphates
发明人：CAO GUANG; SHAH MATU J
权利人:EXXONMOBIL CHEM PATENTS INC
摘要:The invention is directed to a method of synthesising silicoaluminophosphate and aluminophosphate molecular sieves using synthesis templates that contain at least one template of general formula R 1 R 2 N—R 3 , wherein R 1 and R 2 are independently selected from the group consisting of alkyl groups having from 1 to 3 carbon atoms and hydroxyalkyl groups having from 1 to 3 carbon atoms; R 3 is selected from the group consisting of 4- to 8-membered cycloalkyl groups, optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms, and 4- to 8-membered heterocyclic groups having from 1 to 3 heteroatoms, said heterocyclic groups being optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms and the heteroatoms in said heterocyclic groups being selected from the group consisting of O, N, and S. In particular, the present invention relates to the synthesis of silicoaluminophosphate molecular sieves of the CHA framework type having a low silicon to aluminium atomic ratio.

专利号:US-10173993-B2
优先权日:2015-12-09
标题 :Process for the synthesis of sulfones and sulfonamides
发明人：VON WOLFF NIKLAS; CHAR JOËLLE; CANTAT THIBAULT
权利人:COMMISSARIAT ENERGIE ATOMIQUE
摘要:A one pot single step process is described for the synthesis of a compound, including a labeled compound, containing a sulfonyl functional group comprising the step of mixing together a silane, an SO 2 source, an electrophilic compound, an activating compound and optionally a metal catalyst. A process for producing tracers from a labeled sulfonyl containing compound prepared by the described process is also included.

专利号:US-6767858-B1
优先权日:2003-02-20
标题:Synthesis of alumino- and silicoalumino-phosphates of CHA framework type
发明人：CAO GUANG; SHAH MATU J
权利人:EXXONMOBIL CHEM PATENTS INC
摘要:The invention is directed to a method of synthesizing aluminophosphate and silicoaluminophosphate molecular sieves and in particular to the synthesis of aluminophosphate and silicoaluminophosphate molecular sieves using N-methylethanolamine as template with or without a source of fluoride. The use of N-methylethanolamine as template results in good quality AlPO4 of CHA framework type and SAPO molecular sieves of CHA framework type with low levels of silicon in high yield.

专利号:US-5278342-A
优先权日:1992-03-25
标 题 :Vapor phase chlorination of difluoromethyl methyl ether
发明人：O'NEILL GERALD J; BULKA ROBERT J
权利人:HAMPSHIRE CHEMICAL CORP
摘要:The synthesis of fluorinated dimethyl ethers of the formula CF2HOCClxFyH3-(x+y) wherein x is 0, 1 or 2; y is 1, 2 or 3; and wherein (x+y) is 1, 2 or 3. The process involves chlorination of methyl difluoromethyl ether in the presence of oxygen to form a chlorinated reaction product of the formula CF2HOCH3-zClz wherein z is 1 or 2, and wherein the formation of CF2HOCCl3 is inhibited. The resulting compound(s) is then fluorinated with HF before or after separation, to give a fluorinated reaction product including the aforementioned fluorinated dimethyl ethers.

专利号:US-3637894-A
优先权日:1969-08-22
标题:Synthesis of propylene from ethylene
发明人：CRANO JOHN C; FLEMING ELIZABETH K
权利人:PPG INDUSTRIES INC
摘要:ETHYLENE IS CONVERTED TO PROPYLENE BY INTIMATELY CONTACTING THE FORMER WITH A MIXTURE OF A PALLADOUS HALIDE, E.G., PALLADOUS CHLORIDE, FLUORIDE SALT OF SODIUM, E.G., SODIUM FLUORIDE, IN A NITRILIC REACTION MEDIUM, E.G., BENZONITRILE.

专利号:US-5599520-A
优先权日:1994-11-03
标题:Synthesis of crystalline porous solids in ammonia
发明人：GARCES JUAN M; MILLAR DEAN M; HOWARD KEVIN E
摘要:A process of preparing a crystalline porous solid selected from silicas and metallosilicates, such as, aluminosilicate zeolites or clathrasils. The process involves preparing a reaction mixture containing ammonia; water in a controlled concentration; a (hydrocarbyl)ammonium polysilicate hydrate salt; a mineralizer, such as ammonium fluoride; optionally, a source of a metal oxide, such as aluminum nitride; and optionally, a source of a charge-balancing cation or a structure directing agent; and maintaining the mixture at a temperature and for a time so as to produce the crystalline porous solid. A novel silica which is isostructural with zeolite P1 is prepared. Also prepared are a novel silica which is isostructural with zeolite beta and a novel TMA sodalite having a silica/alumina molar ratio between 12 and about 20.