US Patent Class 502
CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING




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Current as of: June, 1999
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  DF  CLASS NOTES
1  DF  HAVING FOREIGN OR DIVERSE FUNCTION (E.G., PREVENT CORROSION, ETC.)
2  DF  .~ With structure having utility in addition to support or carrier
3  DF  TO BE USED AS A MELT
4  DF  IN FORM OF A MEMBRANE
5  DF  IRRADIATION BY, OR APPLICATION OF, ELECTRICAL, MAGNETIC OR WAVE ENERGY
6  DF  CONTROL RESPONSIVE TO SENSED CONDITION
7  DF  BIOSPECIFIC MATERIAL, OR PRODUCED BY ENZYME OR MICROORGANISM
8  DF  FORMING OR TREATING A SPHERE, PROCESS ONLY
9  DF  .~ Forming other than by liquid immersion
10  DF  .~ Treating preformed sphere only
11  DF  INCLUDING ION EXCHANGING, EXCEPT ZEOLITES OR PRODUCT THEREOF
12  DF  .~ For regenerating or rehabilitating catalyst or sorbent
20  DF  REGENERATING OR REHABILITATING CATALYST OR SORBENT
21  DF  .~ Including segregation of diverse particles
22  DF  .~ Treating with a liquid or treating in a liquid phase, including dissolved or suspended
23  DF  .~.~ "Wet air combustion" oxidation of material submerged in liquid
24  DF  .~.~ Including intended dissolution or precipitation of a substantial amount of an ingredient of the ultimate composition
25  DF  .~.~ Using salt or alkaline substance
26  DF  .~.~.~ Ammonia or derivative thereof
27  DF  .~.~ Using acid
28  DF  .~.~.~ Organic
29  DF  .~.~ Organic liquid
30  DF  .~.~.~ And gas addition thereto
31  DF  .~.~.~ Hydrocarbon
32  DF  .~.~.~ Halogen containing
33  DF  .~.~.~ Oxygen containing
34  DF  .~ Gas or vapor treating
35  DF  .~.~ Using halogen containing substance including liquids vaporizable upon contacting spent catalyst or sorbent
36  DF  .~.~.~ Fluorine containing
37  DF  .~.~.~ Simultaneously or subsequently adding free oxygen or use of oxyhalogen compound
38  DF  .~.~ Treating with free oxygen containing gas
39  DF  .~.~.~ And forming useful by-product
40  DF  .~.~.~ And adding heat by admixing solid heat carrier
41  DF  .~.~.~ In gaseous suspension (e.g., fluidized bed, etc.)
42  DF  .~.~.~.~ And substantially complete oxidation of carbon monoxide to carbon dioxide within regeneration zone
43  DF  .~.~.~.~ Plural distinct serial combustion stages
44  DF  .~.~.~.~ Indirectly heating or cooling spent material within regeneration zone or prior to entry into regeneration zone
45  DF  .~.~.~ Moving bed (e.g., vertically or horizontally, etc., moving bulk material)
46  DF  .~.~.~.~ Generally concurrent flow of oxygen containing gas and material
47  DF  .~.~.~.~ Generally countercurrent flow of oxygen containing gas and material
48  DF  .~.~.~.~ Generally transverse (i.e., lateral) flow of oxygen containing gas relative to material
49  DF  .~.~.~ Plural distinct oxidation stages
50  DF  .~.~.~ Reactive gas treating after oxidation
51  DF  .~.~.~ Oxidation gas comprises essentially steam and oxygen
52  DF  .~.~.~ With control of oxygen content in oxidation gas
53  DF  .~.~ Elemental hydrogen
54  DF  .~.~ Ammonia or derivative thereof
55  DF  .~.~ Steam
56  DF  .~ By heat
60  DF  ZEOLITE OR CLAY, INCLUDING GALLIUM ANALOGS
61  DF  .~ Gallium containing
62  DF  .~ Including organic component
63  DF  .~ And additional AL or Si containing component
64  DF  .~.~ Zeolite
65  DF  .~.~.~ And rare earth metal (Sc, Y or Lanthanide)containing
66  DF  .~.~.~ And Group VIII (Iron Group or Platinum Group) metal containing
67  DF  .~.~.~ Mixed zeolites
68  DF  .~.~.~ Mixed with clay
69  DF  .~.~.~ Heterogeneous arrangement
70  DF  .~.~.~ Gelling in presence of zeolite
71  DF  .~.~.~ ZSM Type
72  DF  .~.~ Mixed clays
73  DF  .~ And Group III or rare earth metal (Al, Ga, In, Tl, Sc, Y) or Lanthanide containing
74  DF  .~ And Group VIII (Iron Group or Platinum Group) containing
75  DF  .~ Including chemical reduction of exchanged cation
76  DF  .~ Coprecipitation
77  DF  .~ ZSM type
78  DF  .~ Mordenite type
79  DF  .~ Faujasite type (e.g., X or Y, etc.)
80  DF  .~ Clay
81  DF  .~.~ Acid treating
82  DF  .~.~.~ Plural acid treatment
83  DF  .~.~.~ Sulfuric or hydrochloric acid
84  DF  .~.~ And metal, metal oxide, or metal hydroxide
85  DF  .~ Activating treatment
86  DF  .~.~ Utilizing ammonium ions
87  DF  .~ Support per se
100  DF  CATALYST OR PRECURSOR THEREFOR
101  DF  .~ Making catalytic electrode, process only
102  DF  .~ Plural component system comprising A - Group I to IV metal hydride or organometallic compound - and B - Group IV to VIII metal, lanthanide or actinde compound - (i.e., alkali metal, Ag, Au, Cu, alkaline earth metal, Be, Mg, Zn, Cd, Hg, Sc, Y, Al, Ga, In, Tl, Ti, Zn, Hf, Ge, Sn or Pb hydride or organometallic compound and Ti, Zr, Hf, Ge, Sn, Pb, V, Nb, Ta, As, Sb, Bi, Cr, Mo, W, Po, Mn, Tc, Re, Iron group, Platinum group, atomic number 57 to 71 inclusive or atomic number 89 or higher compound)
103  DF  .~.~ Component A metal is Group IA, IIA or IIIA and component B metal is Group IVB to VIIB or VIII (i.e., alkali metal, alkaline earth Metal, Be, Mg, Al, Ga, In or Tl and Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, iron Group or Platinum group) (e.g., Ziegler Catalyst, etc.)
104  DF  .~.~.~ Preparing catalyst or precursor
105  DF  .~.~.~.~ Including comminuting (e.g., milling, grinding, etc.)
106  DF  .~.~.~.~ Fluidized bed feature
107  DF  .~.~.~.~ Including heating to higher temperature
108  DF  .~.~.~.~ Utilizing hydrocarbon containing unsaturation not part of benzene ring
109  DF  .~.~.~.~ Utilizing high molecular weight synthetic polymer
110  DF  .~.~.~.~ Including plural additions of Component A
111  DF  .~.~.~.~ Utilizing water or compound containing hydroxy bonded to carbon
112  DF  .~.~.~ Containing iodine
113  DF  .~.~.~ Containing two or more different Component B metals
114  DF  .~.~.~ Containing hydrides or organometallic of two or more different Component A metals
115  DF  .~.~.~.~ Magnesium containing
116  DF  .~.~.~.~.~ And compound containing Silicon-Hydrogen or Silicon-Carbon bond
117  DF  .~.~.~ Component B metal is other than titanium or vanadium
118  DF  .~.~.~ And a third component C (i.e., an additive other than a saturated hydrocarbon or an aromatic hydrocarbon free of aliphatic or cycloaliphatic unsaturation)
119  DF  .~.~.~.~ Non-metallic inorganic halogen containing
120  DF  .~.~.~.~ Elemental oxygen or nonmetallic inorganic oxygen-containing material, other than water
121  DF  .~.~.~.~ Nonmetallic organic phosphorus containing
122  DF  .~.~.~.~ Nonmetallic organic sulfur containing
123  DF  .~.~.~.~ Nonmetallic organic nitrogen containing
124  DF  .~.~.~.~.~ Including element in addition to carbon, hydrogen, and nitrogen (e.g, nitro, etc.)
125  DF  .~.~.~.~ Nonmetallic organic oxygen containing
126  DF  .~.~.~.~.~ Ether
127  DF  .~.~.~.~.~ Ester
128  DF  .~.~.~.~ Nonmetallic organic halide
129  DF  .~.~.~.~ Metal compound other than which could be produced in situ by reaction of a Group IA, IIA, or Group IIIA metal compound present with a titanium or vanadium compound present
130  DF  .~.~.~.~.~ Lead compound
131  DF  .~.~.~.~.~ Tin compound
132  DF  .~.~.~.~.~ Aluminum compound
133  DF  .~.~.~.~.~ Magnesium compound
134  DF  .~.~.~.~.~.~ Halogen containing
150  DF  .~ Organic compound containing
151  DF  .~.~ Method of making including comminuting of solid material (e.g., grinding, crushing, etc.)
152  DF  .~.~ Organic compound including carbon-metal bond
153  DF  .~.~.~ Diverse metals bonded to carbon
154  DF  .~.~.~ Including metal compound containing different metal than that bonded to carbon
155  DF  .~.~.~ Including phosphorus or sulfur or compound containing nitrogen or phosphorus or sulfur
156  DF  .~.~.~ Including alcohol, phenol, or ether
157  DF  .~.~.~ Alkali metal bonded to carbon
158  DF  .~.~ Compound with Silicon-hydrogen bond or organic compound with silicon-carbon bond
159  DF  .~.~ Resin, natural or synthetic, polysaccharide or polypeptide
160  DF  .~.~ Peroxygen compound containing
161  DF  .~.~ With metal carbonyl or carbon monoxide complex
162  DF  .~.~ Organic phosphorus or nitrogen, except the ammonium ion
163  DF  .~.~.~ Phthalocyanine
164  DF  .~.~.~ Quaternary ammonium or phosphonium
165  DF  .~.~.~ Copper containing
166  DF  .~.~.~ Rhodium containing
167  DF  .~.~.~ Organic nitrogen containing
168  DF  .~.~ Organic sulfur compound
169  DF  .~.~ With metal halide
170  DF  .~.~ With metal carboxylate or metal compound and carboxylic acid or anhydride
171  DF  .~.~ Organic compound contains metal (e.g., Na-O-Ethyl, etc.)
172  DF  .~.~ Alcohol, phenol, ether, aldehyde or ketone
173  DF  .~.~ Elemental metal in organic dispersing medium
174  DF  .~ Inorganic carbon containing
175  DF  .~.~ Cyanide
176  DF  .~.~ Hydroxycarbonate
177  DF  .~.~ Carbide
178  DF  .~.~.~ Silicon carbide
179  DF  .~.~.~.~ Group VA (N, P, As, Sb, Bi) containing
180  DF  .~.~ Elemental carbon
181  DF  .~.~.~ And halogen containing
182  DF  .~.~.~ And metal, metal oxide, or metal hydroxide
183  DF  .~.~.~.~ Of Group II (i.e., alkaline earth, Be, Mg, Zn, Cd or Hg)
184  DF  .~.~.~.~ Of Group I (i.e., alkali, Ag, Au or Cu)
185  DF  .~.~.~.~ Of Group VIII (i.e., iron or platinum group)
200  DF  .~ Nitrogen compound containing
201  DF  .~.~ Nitrate
202  DF  .~ Boron or compound containing same
203  DF  .~.~ Boron halide
204  DF  .~.~ And Group VI metal containing (i.e., Cr, Mo, W or Po)
205  DF  .~.~.~ And bismuth containing
206  DF  .~.~.~ Molybdenum containing
207  DF  .~.~ And Group VIII metal containing (i.e., iron or platinum group)
208  DF  .~ Phosphorus or compound containing same
209  DF  .~.~ And vanadium containing
210  DF  .~.~ And Group VI metal (i.e., Cr, Mo, W or Po,)
211  DF  .~.~.~ Molybdenum
212  DF  .~.~.~.~ And bismuth containing
213  DF  .~.~ And Group VIII metal containing (i.e., iron or platinum group)
214  DF  .~.~ And silicon containing
215  DF  .~ Selenium or tellurium or compound containing same
216  DF  .~ Sulfur or compound containing same
217  DF  .~.~ Sulfate
218  DF  .~.~.~ And Group I metal containing (i.e., alkali, Ag, Au or Cu)
219  DF  .~.~ And Group VI metal containing (i.e., Cr, Mo, W or Po)
220  DF  .~.~.~ Molybdenum containing
221  DF  .~.~.~ And Group VIII metal containing (i.e., iron or platinum group)
222  DF  .~.~ And Group VIII metal containing (i.e., iron or platinum group)
223  DF  .~.~.~ Platinum group (i.e., Ru, Rh, Pd, Os, Ir, Pt)
224  DF  .~ Halogen or compound containing same
225  DF  .~.~ Copper halide
226  DF  .~.~ And Group II metal (i.e., alkaline earth, Be, Mg, Zn Cd or Hg)
227  DF  .~.~ And Group IV metal (i.e., Ti, Zr, Hf, Ge, Sn or Pb)
228  DF  .~.~ And Group VI metal (i.e., Cr, Mo, W or Po)
229  DF  .~.~ And Group VIII metal (i.e., iron or platinum group)
230  DF  .~.~.~ Platinum group (i.e., Ru, Rh, Pd, Os, Ir or Pt)
231  DF  .~.~ And Group III metal (i.e., Sc, Y, Al, Ga, In or Tl)
232  DF  .~ Silicon containing or process of making
233  DF  .~.~ Forming silica gel
234  DF  .~.~.~ Coprecipitating
235  DF  .~.~.~.~ Group III or rare earth metal, metal oxide, or metal hydroxide containing (i.e., Sc, Y, Al, Ga, In, Tl or lanthanide)
236  DF  .~.~.~.~ Group IV metal, metal oxide, or metal hydroxide, (i.e., Ti, Zr, Hf, Ge, Sn or Pb)
237  DF  .~.~.~ Metal, metal oxide, or metal hydroxide containing
238  DF  .~.~.~.~ Of Group III metal (i.e., Sc, Y, Al, Ga, In or Tl)
239  DF  .~.~.~.~ Of Group IV metal (i.e., Ti, Zr, Hf, Ge, Sn or Pb)
240  DF  .~.~ With metal, metal oxide, or metal hydroxide
241  DF  .~.~.~ Of Group VII (i.e., Mn, Tc or Re)
242  DF  .~.~.~ Of Group IV (i.e., Ti, Zr, Hf, Ge, Sn or Pb)
243  DF  .~.~.~ Of Group I (i.e., Alkali, Ag, Au or Cu)
244  DF  .~.~.~.~ Of copper
245  DF  .~.~.~.~.~ And group VIII metal containing (i.e., iron or platinum group)
246  DF  .~.~.~ Of Group V (i.e., V, Nb, Ta, As, Sb or Bi)
247  DF  .~.~.~.~ Of vanadium
248  DF  .~.~.~.~.~ And Group VI metal (i.e., Cr, Mo., W or Po)
249  DF  .~.~.~.~ Of antimony or bismuth
250  DF  .~.~.~ Of Group II (i.e., alkaline earth, Be, Mg, Zn, Cd or Hg)
251  DF  .~.~.~.~ Magnesium
252  DF  .~.~.~.~.~ And Group VIII metal containing (i.e., iron or platinum group)
253  DF  .~.~.~.~ Of zinc, cadmium, or mercury
254  DF  .~.~.~ Of Group VI (i.e., Cr, Mo, W or Po)
255  DF  .~.~.~.~ Molybdenum
256  DF  .~.~.~.~ Chromium
257  DF  .~.~.~.~.~ And Group VIII metal containing (i.e., iron or platinum group)
258  DF  .~.~.~ Of Group VIII (i.e., iron or platinum group)
259  DF  .~.~.~.~ Nickel
260  DF  .~.~.~.~ Cobalt
261  DF  .~.~.~.~ Platinum group (i.e., Ru, Rh, Pd, Os, Ir or Pt)
262  DF  .~.~.~.~.~ Platinum or palladium
263  DF  .~.~.~ Of Group III or lanthanide group (i.e., Sc, Y, Al, Ga, In, Tl, or atomic number 57 to 71 inclusive)
300  DF  .~ Metal, metal oxide or metal hydroxide
301  DF  .~.~ Raney type
302  DF  .~.~ Of lanthanide series (i.e., atomic number 57 to 71 inclusive)
303  DF  .~.~.~ Lanthanum
304  DF  .~.~.~ Cerium
305  DF  .~.~ Of Group VI (i.e., Cr, Mo, W or Po)
306  DF  .~.~.~ And Group II metal containing (i.e., alkaline earth, Be, Mg, Zn, Cd or Hg)
307  DF  .~.~.~.~ Zinc
308  DF  .~.~.~ And Group IV metal containing (i.e., Ti, Zr, Hf, Ge, Sn or Pb)
309  DF  .~.~.~.~ Titanium containing
310  DF  .~.~.~.~ Tin containing
311  DF  .~.~.~ And Group V metal containing (i.e., V, Nb, Ta, As, Sb or Bi)
312  DF  .~.~.~.~ Vanadium containing
313  DF  .~.~.~ And Group VIII metal containing (i.e., iron or platinum group)
314  DF  .~.~.~.~ Iron group metal and Group III metal containing (i.e., Fe, Co or Ni and Sc, Y, Al, Ga, In or Tl)
315  DF  .~.~.~.~ Nickel containing
316  DF  .~.~.~.~ Iron containing
317  DF  .~.~.~ And Group I containing (i.e., alkali, Ag, Au or Cu)
318  DF  .~.~.~.~ Copper containing
319  DF  .~.~.~ Of chromium
320  DF  .~.~.~.~ And Group III metal containing (i.e., Sc, Y, Al, Ga, In or Tl)
321  DF  .~.~.~ Of molybdenum
322  DF  .~.~.~.~ And Group III metal containing (i.e., Sc, Y, Al, Ga, In or Tl)
323  DF  .~.~.~ And Group III metal containing (i.e., Sc, Y, Al, Ga, In or Tl)
324  DF  .~.~ Of manganese
325  DF  .~.~ Of Group VIII (i.e., iron or platinum group)
326  DF  .~.~.~ Of platinum group metal and of iron group (i.e., Ru, Rh, Pd, Os, Ir, or Pt and Fe, Co or Ni)
327  DF  .~.~.~.~ And Group III metal containing (i.e., Sc, Y, Al, Ga, In or Tl)
328  DF  .~.~.~ And Group II metal containing (i.e., alkaline earth, Be, Mg, Zn, Cd or Hg)
329  DF  .~.~.~.~ Zinc containing
330  DF  .~.~.~ And Group I metal containing (i.e., alkali, Ag, Au or Cu)
331  DF  .~.~.~.~ Copper containing
332  DF  .~.~.~ And Group III metal containing (i.e., Sc, Y, Al, Ga, In or Tl)
333  DF  .~.~.~.~ Of palladium
334  DF  .~.~.~.~ Of platinum
335  DF  .~.~.~.~ Of nickel
336  DF  .~.~.~.~ Of iron
337  DF  .~.~.~ Of nickel
338  DF  .~.~.~ Of iron
339  DF  .~.~.~ Of palladium or platinum
340  DF  .~.~ Of Group II (i.e., alkaline earth, Be, Mg, Zn, Cd or Hg)
341  DF  .~.~.~ And Group III metal containing (i.e., Sc, Y, Al, Ga, In or Tl)
342  DF  .~.~.~.~ Of zinc
343  DF  .~.~.~ Of zinc
344  DF  .~.~ Of Group I (i.e., alkali, Ag, Au or Cu)
345  DF  .~.~.~ Of copper
346  DF  .~.~.~.~ And Group III metal containing (i.e., Sc, Y, Al, Ga, In or Tl)
347  DF  .~.~.~ Of silver
348  DF  .~.~.~.~ And Group III metal containing (i.e., Sc, Y, Al, Ga, In or Tl)
349  DF  .~.~ Of Group IV (i.e., Ti, Zr, Hf, Ge, Sn or Pb)
350  DF  .~.~.~ Of titanium
351  DF  .~.~.~.~ And Group III metal containing (i.e., Sc, Y, Al, Ga, In or Tl)
352  DF  .~.~.~ Of tin
353  DF  .~.~ Of Group V (i.e., V, Nb, Ta, As, Sb or Bi)
354  DF  .~.~.~ And Group III metal containing (i.e., Sc, Y, Al, Ga, In or T1)
355  DF  .~.~ Of Group III (i.e., Sc, Y, Al, Ga, In or Tl)
400  DF  SOLID SORBENT
401  DF  .~ Organic
402  DF  .~.~ Synthetic resin
403  DF  .~.~ Protein
404  DF  .~.~ Carbohydrate
405  DF  .~ Inorganic gel containing (e.g., silicagel)
406  DF  .~ Having specifically intended extraneously added iron group (i.e., Fe, Co, Ni) component
407  DF  .~ Silicon containing
408  DF  .~.~ Acid treated
409  DF  .~.~ Quartz
410  DF  .~.~ Magnesium silicate (e.g., abestos, vermiculite, etc.)
411  DF  .~.~ Having extraneously added alkali metal, or alkaline earth metal
412  DF  .~.~ Diatomaceous earth
413  DF  .~.~ Free carbon containing
414  DF  .~ Aluminum containing
415  DF  .~.~ Alumina (i.e., dialuminum trioxide)
416  DF  .~ Free carbon containing
417  DF  .~.~ And specified adde active sorbent material
418  DF  .~.~ Process utilizing solid or liquid source carbonizable material, or product thereof
419  DF  .~.~.~ Producing diverse useful byproduct
420  DF  .~.~.~ Temperature vs. time factor
421  DF  .~.~.~ Including recycling product or intermediate thereof to prior stage of process
422  DF  .~.~.~ Including diverting part of source to provide fuel for process
423  DF  .~.~.~ Adding nongaseous inorganic, or inorganic yielding component, prior to or during process
424  DF  .~.~.~.~ Zinc containing
425  DF  .~.~.~.~ Phosphorus containing
426  DF  .~.~.~.~ Acid
427  DF  .~.~.~.~ Alkali metal, alkaline earth metal, or magnesium containing
428  DF  .~.~.~ Including pelletizing or briquetting and subsequently comminuting
429  DF  .~.~.~.~ Using carbonaceous binder
430  DF  .~.~.~ Treating with gas
431  DF  .~.~.~.~ Fluidized bed having specified parameter
432  DF  .~.~.~.~ Specified atmosphere
433  DF  .~.~.~.~.~ Including free oxygen
434  DF  .~.~.~.~.~.~ And subsequent diverse gas
435  DF  .~.~.~.~.~ Exposure to hot flue or exhaust gas
436  DF  .~.~.~ Diverse temperatures
437  DF  .~.~.~ Specified source (e.g., peach pit, etc.)
438  DF  .~.~ Chemically reducing an oxide or product thereof
439  DF  MISCELLANEOUS (E.G., CARRIER OR SUPPORT PER SE OR PROCESS OF MAKING, ETC.)
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CROSS-REFERENCE ART COLLECTIONS
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500  DF  STABILIZED
501  DF  .~ For multi-regenerability
502  DF  .~ Cystallinity
503  DF  .~ Crush strength
504  DF  .~ Abrasion resistance
506  DF  METHOD OF MAKING INORGANIC COMPOSITION UTILIZING ORGANIC COMPOUND (EXCEPT FORMIC, ACETIC, OR OXALIC ACID OR SALT THEREOF)
507  DF  .~ Synthetic resin, natural resin, polysaccaride, or polypeptide
508  DF  .~ Sulfur containing organic compound
509  DF  .~ Nitrogen containing organic compound
510  DF  .~.~ Also containing hydroxyl bonded to carbon, e.g., carboxylic acid, etc.
511  DF  .~.~ Two or more nitrogen atoms bonded to different carbon atoms
512  DF  .~ Carboxylic acid or salt thereof other than formic, acetic, or oxalic acid
513  DF  .~ Alcohol, phenol, or ether or metallate thereof
514  DF  PROCESS APPLICABLE EITHER TO PREPARING OR TO REGENERATING OR TO REHABILITATING CATALYST OR SORBENT
515  DF  SPECIFIC CONTAMINANT REMOVAL
516  DF  .~ Metal contaminant removal
517  DF  .~ Sulfur or sulfur compound removal
518  DF  .~ Carbonaceous contaminant
519  DF  REAGENT GRADE (E.G., ULTRA PURE)
520  DF  SUPPRESSED SIDE REACTIONS
521  DF  METAL CONTAMINANT PASSIVATION
522  DF  RADIANT OR WAVE ENERGY ACTIVATED
523  DF  MISCELLANEOUS SPECIFIC TECHNIQUES OF GENERAL APPLICABILITY
524  DF  SPINEL
525  DF  PEROVSKITE
526  DF  SORBENT FOR FLUID STORAGE, OTHER THAN AN ALLOY FOR HYDROGEN STORAGE
527.11  DF  MONOLITH OF PECULIAR STRUCTURE OR PHYSICAL FORM, WITH SPECIFIED HEAT EXCHANGE CAPABILITY
527.12  DF  PLURAL LAYERS ON A SUPPORT, EACH LAYER HAVING A DISTINCT FUNCTION
527.13  DF  .~ More than two overlapping layers
527.14  DF  SPECIFIED SUPPORT PARTICLES OF PECULIAR STRUCTURE OR PHYSICAL FORM (E.G., WHISKERS, FIBER PIECES, ETC.)
527.15  DF  .~ Layered deposition on support particle (i.e., on a carrier particle)
527.16  DF  .~ Specified shape of support particle (e.g., hollow-carrier particle)
527.17  DF  .~ Specified cross-section shape or area of elongated support particles (e.g., tape, with area of cross section stated)
527.18  DF  MONOLITH WITH SPECIFIED GAS FLOW PATTERNS (E.G., TURBULENT FLOW MONOLITH)
527.19  DF  MONOLITH WITH SPECIFIED SHAPE OR DIMENSION OF CELL OPENING (E.G., HONEYCOMB, RINGS, ETC.)
527.2  DF  .~ Cell opening shape and dimensions are determined by the intersection of the woof and the warp of a woven structure (e.g., of a fabric or gauze, etc.)
527.21  DF  .~ Cell openings are quadrilateral or triangular (e.g., pie shaped)
527.22  DF  .~ Cell openings are spiral or corrugated
527.23  DF  SPECIFIED EXTERNAL OR INTERNAL SHAPE OR CONFIGURATION OF CATALYST REACTOR OR OF SORBENT CONVERTER
527.24  DF  PECULIAR STRUCTURE OR PHYSICAL FORM (E.G., FOAM, SPONGE, FOIL, SACK, BAG, FIBER IN A MATRIX, MONOLITH, MICROSTRUCTURE (MICROCRACKING), MICROAGGREGATES, ETC.)