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| Class 423 | CHEMISTRY OF INORGANIC COMPOUNDS |
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![[List of Pre Grant Publications for class 423 subclass 700]](../as.gif) | ![[List of Patents for class 423 subclass 700]](../ps.gif) | 700 | ZEOLITE |
| | 701 |  Organic compound used to form zeolite |
| | 709 | Seed used |
| | 710 | Aging to induce zeolite formation from inorganic mixture |
| | 712 | Synthesized from naturally occurring product |
| | 713 | Isomorphic metal substitution |
| | 716 | With change of synthesized zeolite morphology |
| | 718 | Structure defined X-ray diffraction pattern |
| | 1 | TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND |
| | 2 | Radioactive metal (At. No. 84+ or radioactive isotope of another metal) |
| | 3 |  Actinide series metal (At. No. 89+) |
| | 4 |  Removing cladding or coating from fuel element |
| | 5 | Fusing |
| | 6 | Ion exchanging or sorbing |
| | 8 | Liquid-liquid extracting |
| | 11 | Forming insoluble substance in liquid |
| | 12 |  By coprecipitating with carrier |
| | 15 | Forming compound containing plural metals or metal and ammonium |
| | 16 | Forming peroxide (e.g., U04, etc.) |
| | 17 | Carbonate leaching |
| | 18 | Acid leaching |
| | 19 | Volatizing |
| | 20 | Acid leaching |
| | 21.1 | Rare earth metal (At. No. 21, 39, or 57-71) |
| | 22 | Platinum group metal (Ru, Rh, Pd, Os, Ir, or Pt) |
| | 23 | Group IB metal (Cu, Ag, or Au) |
| | 24 | Ion exchanging or liquid-liquid extracting |
| | 25 | Sorbing or magnetic separating |
| | 26 | Flotation |
| | 27 | Leaching, washing, or dissolving |
| | 28 | Specified particle size |
| | 29 | With a cyanide compound |
| | 32 | With ammonia or ammonium containing compound |
| | 34 | Forming insoluble substance in liquid |
| | 38 | Halogenating |
| | 41 | Sulfating |
| | 42 | Forming insoluble substance in liquid |
| | 44 | Volatizing copper, silver, or gold |
| | 45 | Sulfating |
| | 46 | Halogenating |
| | 47 | Desulfurizing or de-arsenating |
| | 48 | Forming sulfide or matte |
| | 49 | Group VIIB metal (Mn, Tc, or Re) |
| | 53 | Group VIB metal (Cr, Mo, or W) |
| | 54 | Ion exchanging or liquid-liquid extracting |
| | 55 | Forming insoluble substance in liquid |
| | 59 | Volatizing |
| | 61 | Forming compound containing plural metals |
| | 62 | Group VB metal (V, Nb, or Ta) |
| | 63 | Ion exchanging or liquid-liquid extracting |
| | 64 | From organic liquids |
| | 65 | Forming insoluble substance in liquid |
| | 68 | Leaching, washing, or dissolving |
| | 69 | Group IVB metal (Ti, Zr, or Hf) |
| | 70 | Ion exchanging or liquid-liquid extracting |
| | 71 | Forming compound containing plural metals |
| | 73 | Separating Group IVB metals from each other |
| | 74 | Utilizing fluidized bed |
| | 75 | Volatizing |
| | 80 | Chemically converting for physical solid-solid separation |
| | 81 | Treating with nitrogen or nitrogenous compound |
| | 82 | Treating with sulfur or halogen containing acid |
| | 84 | Treating with compound containing alkali metal or alkaline earth metal |
| | 85 | Forming insoluble compound containing Group IVB metal |
| | 86 | Dissolving or leaching of iron |
| | 87 | Group VA metal or arsenic (Sb, Bi, or As) |
| | 89 | Group IVA metal (Ge, Sn, or Pb) |
| | 90 | Detinning |
| | 92 | Forming insoluble substance in liquid |
| | 96 | Volatizing germanium or tin |
| | 97 | Volatizing lead |
| | 98 | Leaching, washing, or dissolving |
| | 99 | Group IIB metal (Zn, Cd, or Hg) |
| | 100 | Ion exchanging or magnetic separating |
| | 101 | Forming insoluble substance in liquid |
| | 102 | Agitating during reaction |
| | 103 | Halogenating |
| | 104 | Hydroxylating or hydrating |
| | 105 | Carbonating |
| | 106 | Sulfating |
| | 107 | Volatizing zinc, cadmium, or mercury |
| | 109 | Leaching, washing, or dissolving |
| | 110 | Desulfurizing |
| | 111 | Group IIIA metal or beryllium (Al, Ga, In, Tl, or Be) |
| | 112 | Ion exchanging or liquid-liquid extracting |
| | 113 | Magnetic separating |
| | 114 | Forming compound containing ammonium and metal |
| | 115 | Forming compound containing plural metals |
| | 122 | Forming insoluble substance in liquid |
| | 123 | Subjecting mixture to pressure, vacuum, or steam |
| | 124 | Agitating during reaction |
| | 125 | Nitrating |
| | 126 | Halogenating |
| | 127 | Hydroxylating or hydrating |
| | 128 | Sulfating |
| | 129 | Carbonating |
| | 130 | Destroying or separating organic impurity |
| | 131 | Leaching, washing, or dissolving |
| | 133 | Volatizing |
| | 137 | Utilizing carbon as reducing agent |
| | 138 | Iron group metal (Fe, Co, or Ni) |
| | 139 | Ion exchanging or liquid-liquid extracting |
| | 140 | Forming insoluble substance in liquid |
| | 141 | Subjecting mixture to pressure, vacuum, or steam |
| | 142 | Agitating during reaction |
| | 143 | Utilizing or forming nitrogenous compound |
| | 146 | Sulfating |
| | 148 | Utilizing fluidized bed |
| | 149 | Volatizing iron, nickel, or cobalt |
| | 150.1 | Leaching, washing, or dissolving |
| | 150.2 | Spent catalyst |
| | 150.3 | Treatment of iron containing waste mixture |
| | 150.4 | Treatment of matte or nodule |
| | 151 | Converting metal to magnetic form |
| | 153 | Desulfurizing |
| | 155 | Alkaline earth metal (Mg, Ca, Sr, or Ba) |
| | 156 | Magnetic separating |
| | 157 | Ion exchanging or liquid-liquid extracting |
| | 157.2 | Phosphate rock or ore |
| | 157.5 | Phosphorous or phosphorous compound containing waste as feed |
| | 158 | Forming insoluble substance in liquid |
| | 159 | Subjecting mixture to pressure, vacuum, or steam |
| | 160 | Agitating during reaction |
| | 161 | Specified particle size used or made |
| | 162 | Nitrating or ammoniating |
| | 163 | Halogenating |
| | 164 | Hydroxylating or hydrating |
| | 165 | Carbonating |
| | 166 | Sulfating |
| | 167.1 | Treating asbestos |
| | 168 | Mixing fuel with starting mixture |
| | 169 | Separating magnesium and calcium from each other (e.g., treating dolomite, etc.) |
| | 170 | Treating impure sulfate (e.g., barite, etc.) |
| | 173 | Treating impure carbonate (e.g., oyster shells, etc.) |
| | 178 | Mixture contains halogen or sulfur |
| | 179 | Alkali metal (Li, Na, K, Rb, or Cs) |
| | 179.5 | Lithium |
| | 180 | Decomposing amalgam or other alloy |
| | 181 | Ion exchanging or liquid-liquid extracting |
| | 182 | Regenerating solution |
| | 184 | Forming insoluble substance in liquid |
| | 185 | Fluorinating or defluorinating |
| | 186 | Carbonating |
| | 187 | Utilizing or forming nitrogenous compound |
| | 188 | Subjecting mixture to pressure, vacuum, or steam |
| | 189 | Utilizing carbon dioxide as reactant |
| | 191 | Halogenating |
| | 192 | Hydroxylating or hydrating |
| | 193 | Sulfating |
| | 194 | Utilizing or forming nitrogenous compound |
| | 195 | Subjecting mixture to pressure, vacuum, or steam |
| | 196 | Agitating during reaction |
| | 197 | Halogenating |
| | 198 | Hydroxylating or hydrating |
| | 199 | Sulfating |
| | 200 | Volatizing an alkali metal |
| | 201 | Agitating during heating or reaction |
| | 202 | Treating with acid or acid salt |
| | 203 | Subjecting mixture to pressure, vacuum, or steam |
| | 206.1 | Mixture contains organic or carbonaceous impurity |
| | 208 | Water leaching or forming water soluble substance |
| | 209 | Carbonating |
| | 210 | MODIFYING OR REMOVING COMPONENT OF NORMALLY GASEOUS MIXTURE |
| | 210.5 | Direct contact with molten material |
| | 212 | Mixture is exhaust from internal-combustion engine |
| | 219 | Molecular oxygen or ozone component |
| | 220 | Carbon dioxide or hydrogen sulfide component |
| | 221 | Utilizing thionate or thiosulfate as reactant |
| | 222 | Reacting mixture with sulfur dioxide, sulfite, or bisulfite |
| | 223 | Utilizing reactant containing arsenic, phosphorus, or boron |
| | 224 | By oxidizing or burning component |
| | 225 | By suspension of metal oxide or hydroxide particles in liquid |
| | 226 | Utilizing organic reactant |
| | 230 | Utilizing solid sorbent, catalyst, or reactant |
| | 232 | Utilizing carbonate as reactant |
| | 234 | Utilizing ammonium or metal hydroxide solution |
| | 235 | Nitrogen or nitrogenous component |
| | 236 | Component also contains carbon (e.g., cyanogen, hydrogen cyanide, etc.) |
| | 237 | Ammonia |
| | 239.1 | Utilizing solid sorbent, catalyst, or reactant |
| | 240R | Halogenous component |
| | 242.1 | Sulfur or sulfur containing component |
| | 242.2 | Utilizing reactant having organic portion to remove or modify sulfur or sulfur containing component |
| | 242.3 | Organic acid |
| | 242.4 | Alcohol, arylhydroxide, or polyol |
| | 242.5 | Sugar |
| | 242.6 | Heterocyclic |
| | 242.7 | Amine |
| | 243.01 | Utilizing aqueous reactant to remove or modify sulfur or sulfur containing component |
| | 243.02 | And addition of gaseous reactant |
| | 243.04 | Ion separation step |
| | 243.05 | With component added to inhibit corrosion or scaling of processing apparatus |
| | 243.06 | Ammonium compound reactant |
| | 243.07 | Transition metal or compound thereof reactant |
| | 243.08 | Alkali or alkali earth compound reactant |
| | 243.11 | And subsequent reactive treatment to remove sulfur from spent reactant |
| | 244.01 | Utilizing solid reactant or catalyst to remove or modify sulfur or sulfur containing component |
| | 245.1 | Organic component |
| | 246 | Carbon monoxide component |
| | 248 | Hydrogen component |
| | 215.5 | Solid component |
| | 249 | RADIOACTIVE (AT. NO. 84+ OR RADIOACTIVE ISOTOPE OF ANOTHER ELEMENT) |
| | 262 | INERT OR NOBLE GAS OR COMPOUND THEREOF |
| | 263 | RARE EARTH COMPOUND (AT. NO. 21, 39, OR 57-71) |
| | 264 | CHANGING COLOR CHARACTERISTIC OF IMPURITY |
| | 265 | WITH ADDITIVE |
| | 266 | For stabilizing crystal size or shape |
| | 267 | Including anticaking or antihygroscopic function |
| | 269 | Including corrosion inhibitor |
| | 270 | For sulfur trioxide |
| | 272 | For hydrogen peroxide |
| | 274 | Coating or binder |
| | 275 | Additive contains metal, boron, or silicon |
| | 276 | BORON OR COMPOUND THEREOF |
| | 277 | Oxygen containing |
| | 278 | Binary compound |
| | 279 | Ternary compound containing metal or ammonium |
| | 283 | Ternary compound containing hydrogen |
| | 284 | Nitrogen and hydrogen containing |
| | 286 | Hydrogen and metal or ammonium containing |
| | 289 | Binary compound (e.g., boride, etc.) |
| | 290 | Nitrogen containing |
| | 291 | Carbon containing |
| | 292 | Halogen containing |
| | 294 | Hydrogen containing |
| | 297 | Refractory metal containing (Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, or W) |
| | 298 | Elemental boron |
| | 299 | PHOSPHORUS OR COMPOUND THEREOF |
| | 300 | Halogen containing |
| | 302 | Nitrogen containing |
| | 303 | Sulfur containing |
| | 304 | Oxygen containing |
| | 305 | Metal or ammonium containing |
| | 306 | Plural metal or metal and ammonium containing |
| | 307 | Hydrogen containing |
| | 311 | Orthophosphate |
| | 314 | Metaphosphate |
| | 315 | Triphosphate or tetraphosphate |
| | 316 | Ternary compound containing hydrogen |
| | 322 | Elemental phosphorus |
| | 324 | SILICON OR COMPOUND THEREOF |
| | 325 | Oxygen containing |
| | 326 | Metal containing (i.e., silicate) |
| | 327.1 | Aluminum containing |
| | 331 | Alkaline earth metal containing (Mg, Ca, Sr, or Ba) |
| | 332 | Alkali metal containing (Li, Na, K, Rb, or Cs) |
| | 335 | Silica |
| | 341 | Halogen containing |
| | 344 | Binary compound (e.g., silicide, etc.) |
| | 348 | Elemental silicon |
| | 351 | NITROGEN OR COMPOUND THEREOF (EXCEPT AMMONIUM SALT OF NON-NITROGEN ACID) |
| | 352 | Ammonia or ammonium hydroxide |
| | 353 | From nitride of metal or silicon |
| | 354 | And producing inorganic carbon and nitrogen containing compound |
| | 355 | By hydrolyzing inorganic carbon and nitrogen containing compound |
| | 356 | From ammonium compound |
| | 358 | From organic material containing nitrogen |
| | 359 | From elemental hydrogen and nitrogen |
| | 364 | Carbon containing |
| | 365 | And oxygen containing (e.g., fulminate, cyanate, etc.) |
| | 366 | And sulfur containing (e.g., thiocyanate, etc.) |
| | 367 | And iron containing (e.g., ferrocyanide, etc.) |
| | 368 | Cyanamide radical containing |
| | 371 | Ternary compound |
| | 372 | Hydrogen cyanide |
| | 373 | Employing formamide or formate as reactant |
| | 374 | Utilizing nitric oxide or free nitrogen as reactant |
| | 375 | Employing ammonia as reactant |
| | 377 | Utilizing metal cyanide as reactant |
| | 378 | Using cyanamide as reactant |
| | 379 | Utilizing hydrogen cyanide as reactant |
| | 380 | Utilizing free nitrogen as reactant |
| | 383 | Halogen containing |
| | 384 | Binary (e.g., cyanogen, etc.) |
| | 385 | Oxygen containing |
| | 386 | Halogen containing |
| | 387 | Hydrogen containing |
| | 395 | Nitrate |
| | 396 | Ammonium containing |
| | 397 | Utilizing ammonium or metal nitrate as reactant |
| | 398 | Utilizing halogen containing reactant |
| | 400 | Binary compound (oxide of nitrogen) |
| | 406 | Binary compound |
| | 413 | Hydrogen containing (e.g., amide, imide, etc.) |
| | 414 | CARBON OR COMPOUND THEREOF |
| | 415.1 | Oxygen containing |
| | 415.2 | Percarbonate compound |
| | 416 | Carbonyl |
| | 418.2 | Carbon monoxide |
| | 419.1 | Carbonate or bicarbonate |
| | 420 | Ammonium containing |
| | 420.2 | Plural metal containing |
| | 421 | Alkali metal containing (Li, Na, K, Rb, or Cs) |
| | 422 | Hydrogen containing (bicarbonate) |
| | 426 | Densifying soda ash |
| | 427 | By reacting a bicarbonate |
| | 428 | By reacting sulfur containing compound |
| | 429 | By reacting halogen containing compound |
| | 430 | Alkaline earth metal containing (Mg, Ca, Sr, or Ba) |
| | 431 | By reacting sulfur or halogen containing compound |
| | 432 | By reacting oxide or hydroxide of the metal |
| | 433 | Lead containing |
| | 437.1 | Carbon dioxide or carbonic acid |
| | 439 | Binary compound (e.g., carbide, etc.) |
| | 445R | Elemental carbon |
| | 446 | Diamond |
| | 447.1 | Fiber, fabric, or textile |
| | 447.2 | Product |
| | 447.3 | From gaseous reactants |
| | 447.4 | Prior treatment before carbonization (except with gaseous oxygen) |
| | 447.6 | Including reaction with gaseous oxygen |
| | 447.7 | In specific atmosphere (other than vacuum or air) |
| | 447.8 | Controlling varying temperature or plural heating steps |
| | 447.9 | Carbonizing cellulosic material |
| | 448 | Graphite |
| | 449.1 | Carbon black (e.g., lampblack) |
