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Class Information
Number: 23/305R
Name: Chemistry: physical processes > Physical processes > Crystallization > Heavy metal or aluminum compounds
Description:


Sub-classes under this class:

Class Number Class Name Patents
23/305A Aluminum compounds 87
23/305F Iron compounds 13
23/305RE Rare earth compounds 13


Patents under this class:

Patent Number Title Of Patent Date Issued
5711146 Hydrogen peroxide decomposition Jan. 27, 1998
5545394 Complexation-mediated crystal-forming reactions using complexing agents Aug. 13, 1996
5505924 Multistage countercurrent recrystallization process and apparatus for performing same Apr. 9, 1996
5360602 Silver nitrate produced by a continuous evaporative crystallization process Nov. 1, 1994
4880495 Regeneration of copper etch bath Nov. 14, 1989
4737351 Process for the recovery of tin Apr. 12, 1988
4582697 Production of aluminum trihydroxide having median diameter of 2 to 100 microns Apr. 15, 1986
4568352 Alkali metal nitrate purification Feb. 4, 1986
4533572 Process for producing varnish-bonded carbon-coated metal granules Aug. 6, 1985
4352786 Treatment of copper refinery anode slime Oct. 5, 1982
4306880 Recovering by-products from sea water brines and the like Dec. 22, 1981
4299649 Vapor transport process for growing selected compound semiconductors of high purity Nov. 10, 1981
4256463 Preparation of zirconium oxychloride Mar. 17, 1981
4244924 Dual temperature concentration system Jan. 13, 1981
4209330 Method for forming clusters of noble metal silver precipitating nuclei Jun. 24, 1980
4197157 Method for forming refractory tubing Apr. 8, 1980
4171344 Crystal growth from solution Oct. 16, 1979
4128589 Generation of CF.sub.4 from Teflon for reactive atmosphere processing and growth of metal fluorides Dec. 5, 1978
4030964 Temperature cycling vapor deposition HgI.sub.2 crystal growth Jun. 21, 1977
4019950 Crystals and their manufacture Apr. 26, 1977
4001127 Process of preparing single crystals of strontium barium niobate Jan. 4, 1977
3981818 Crystalline materials Sep. 21, 1976
3973917 Method for the purification of selenium by precipitation from a melt Aug. 10, 1976
3972689 Method for vapor growing crystals Aug. 3, 1976
3972711 Cuprous chloride recovery process Aug. 3, 1976
3969182 Growth of mercuric iodide single crystals from dimethylsulfoxide Jul. 13, 1976
3962027 Bi.sub.4 Ti.sub.3 O.sub.12 Single crystal growth from saturated seeded solution Jun. 8, 1976
3941648 Crystal growth on Hg.sub.3 TeO.sub.6 Mar. 2, 1976
3939252 Dilithium heptamolybdotetragadolinate Feb. 17, 1976
3933972 Process for preparing pure sodium bichromate Jan. 20, 1976



 
 
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