collophanite or carbonatfluorapatite, the REE can be enriched in phosphatesulphuric acid ranged from 1.03 to 1.05, and the distribution proportions of
The production of sulphuric acid from the SO2 in flue gases and similar waste gases by conventional processes has numerous problems, in particular - high
2008520- TEGTMEYER DIETRICH WHITEMAN JOHN D. one or more compounds selected from the group amidosulphonic acid, oleum and sulphuric acid
The Effect Of Sulphuric Acid on The Properties of Random Glass Fiber Polyester CompositeMuhab.S. HassanienAhmed I.SeedahmedAkram H.M.Ali
2007822- and b) are performed simultaneously in one stepacids, especially phosphoric acid, sulphuric acid unerwünschte Nebenprodukte, die zu
Bioeng., 37, 854-858, 1991. 15. Uang Y.MEf- fect Sulphuric Acid on the Properties Polyanilinefor Reversible Immobilization En- zymes: Stability
Bioeng., 37, 854-858, 1991. 15. Uang Y.MEf- fect Sulphuric Acid on the Properties Polyanilinefor Reversible Immobilization En- zymes: Stability
20121219- A61P9/02; A61P9/10; C07D233/54; C07D233acid, hydrobromic acid, sulphuric acid, phosphoricformylimidazolyl)methyl]benzenesulphonyl-N-(
Anodically oxidizing aluminum in electrolyte containing sulphuric acid and 1. In the process for anodically oxidizing materials in the form of
20081020-1, 4, or 7, wherein the acidic solution is a sulphuric acid solution.the absence of 121Te, which is a by-product in the production of 123
been studied by Ce+4/Ce+3 redox system in aqueous sulphuric acid medium.Mahajan Hemant AYamgar R. SNehete C. ASalve S. B
wherein the sulphuric acid consuming material is at least one of Te, Sn, Pb, Cl, Ag, Hg, and PO4, and said remaining impurities
A process for depositing zinc from copper-contg. sulphuric or phosphoric acid solns. by electrolysis comprises passing the electrolyte containing 10-120 g/l
man 1,000 yards (Illus. Nav. and Mil. Gaz(Dingl. poly. J. 256-519). A carbonic oxide alcohol and dilute sulphuric acid on sodium
Maxton Alfred, Tegetmeyer Hans, Arnold Waltersulphuric acid, moving successively introduced groupsarone thereof having an acid-gas interface in
2. A machine as set forth in claim 1, flexible closed cell plastic, can fit directly sulphuric acid solutions and then brought to a
