CAS: 13598-65-7; Ammonium Perrhenate(Vii)

专利信息

专利号:US-7910048-B2
优先权日:2004-01-26
标题:Apparatus for plasma synthesis of rhenium nano and micro powders
发明人：JUREWICZ JERZY W; GUO JIAYIN
权利人:TEKNA PLASMA SYSTEMS INC
摘要:The process for the synthesis of rhenium powders comprises the injection of ammonium perrhenate powder through a carrier gas in a plasma torch of a plasma reactor operated using a mixture including hydrogen as the plasma gas, yielding metallic rhenium under the following chemical reaction:n n2NH 4 ReO 4 +4H 2 →2Re+N 2 ↑+8H 2 O↑.n nThe reactor is provided with a quench zone for cooling the metallic rhenium so as to yield rhenium nano and micro powders.

专利号:WO-2025083672-A1
优先权日:2023-10-19
标题:Synthesis of rhenium metal nanoparticles with low environmental impact
发明人：TASCA FEDERICO; ZUÑIGA LOYOLA CÉSAR ANTONIO
权利人:UNIV DE SANTIAGO DE CHILE USACH
摘要:The present invention relates to rhenium metal nanoparticles (Re0NP) and their synthesis method with a low environmental impact.

专利号:US-4997962-A
优先权日:1988-06-06
标题:Synthesis of tetrathioperrhenate salts
发明人：WEI LIWEN; HALBERT THOMAS R; STIEFEL EDWARD I
权利人:EXXON RESEARCH ENGINEERING CO
摘要:According to the present invention, an improved method for preparing tetrathioperrhenate salts is provided. Basically, a water soluble, oxygen-containing rhenium compound such as rhenium oxide or a salt containing an oxyanion of rhenium, such as ReO 4 -- , is contacted with an aqueous ammonium sulfide or polysulfide solution in the presence of a cation which is capable of forming an aqueous insoluble salt with tetrathioperrhenate.

专利号:US-4939292-A
优先权日:1985-08-01
标题 :Synthesis of esters from alcohols containing carbon monoxide as an impurity
发明人：ELLIOTT DAVID J; PENNELLA FILIPPO
权利人:PHILLIPS PETROLEUM CO
摘要:Esters are prepared by contacting, under suitable reaction conditions, a feed stream comprising a primary alcohol of 1-4 carbon atoms per molecule (preferably methanol, ethanol) and carbon monoxide with a catalyst composition comprising (a) copper or a copper compound (preferably CuO), (b) zinc oxide, (c) at least one metal or compound of at least one metal selected from the group consisting of cobalt, ruthenium, iridium, platinum, molybdenum, and rhenium (preferably cobalt and/or rhenium) and, optionally, (d) alumina.

专利号:US-9061268-B2
优先权日:2010-06-28
标 题 :Synthesis of ultrasmall metal oxide nanoparticles
发明人：SOULTANIDIS NIKOLAOS; WONG MICHAEL S
权利人:SOULTANIDIS NIKOLAOS; WONG MICHAEL S; UNIV RICE WILLIAM M
摘要:The invention generally relates to the ultrasmall MO x nanoparticles that are made in a solvothermal method using water soluble inorganic ammonium salt precursors of the MO x and organic amines, and slow heating to generate uniform ultrasmall MO x nanoparticles of 5 nm or less, as well as methods to make and use same.

专利号:US-4806699-A
优先权日:1986-11-06
标 题 :Process for the production of aromatic hydrocarbons incorporating by-product utilization
发明人：SMITH DAVID J H; WOODFIN WILLIAM T
权利人:BRITISH PETROLEUM CO PLC
摘要:Aromatic hydrocarbons are produced from a feedstock comprising ethane and/or propane and/or butane by the steps of: n (A) reacting the feedstock in the presence of a dehydrocyclodimerization catalyst to produce a product comprising aromatic hydrocarbons, hydrogen and methane, n (B) separating the product of step (A) into an aromatic hydrocarbon fraction, a methane-rich gaseous fraction and a hydrogen-rich gaseous fraction, n (C) feeding all or part of the methane-rich gaseous fraction separated in step (B) to a synthesis gas production unit, thereby to produce synthesis gas, and n (D) contacting the synthesis gas from step (C) together with all or part of the hydrogen-rich gaseous fraction separated in step (B), thereby increasing the hydrogen to carbon monoxide ratio of the synthesis gas, with a Fischer-Tropsch conversion catalyst to produce a hydrocarbon product.