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| Class 75 | SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES |
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![[List of Pre Grant Publications for class 75 subclass 300]](../as.gif) | ![[List of Patents for class 75 subclass 300]](../ps.gif) | 300 | COMPOSITIONS |
| | 301 |  Reactive furnace lining |
| | 302 | Welding rod or electrode defined by composition |
| | 303 | Solid treating composition for liquid metal (e.g., flux, slagging agent, casting agent, etc.) or charge |
| | 304 |  In wire, container, or article with surface feature |
| | 305 | For casting or teeming operation |
| | 306 | For electrothermic operation (e.g., electroslag remelting, etc.) |
| | 307 | Containing Boron(B) compound |
| | 308 | Containing Halide |
| | 312 | Containing Carbide |
| | 313 | Composition for or from consolidating by agglomerating, calcinating, compacting, indurating, roasting, sintering, or solidifying from molten mass |
| | 314 |  Containing free metal |
| | 315 |  Aluminum(Al) or Magnesium(Mg) as free metal |
| | 316 | Iron(Fe), Iron scrap, or Iron alloy as free metal |
| | 319 | Containing Iron(Fe) compound |
| | 320 | And coal, coke, pitch, asphalt, or tar |
| | 321 | And synthetic polymer, natural polymer, or carbohydrate |
| | 322 | And clay (e.g., bentonite, montmorillonite, etc.), cement, or Alkali metal silicate |
| | 323 | And Alkaline earth metal compound or Aluminum(Al) compound |
| | 324 | Containing Zinc(Zn) compound |
| | 325 | Containing coal, coke, pitch, asphalt, or tar |
| | 326 | Containing clay (e.g., bentonite, montmorillonite, etc.), cement, or Alkali metal silicate |
| | 327 | Containing Alkaline earth metal compound or Aluminum(Al) compound |
| | 328 | Containing free metal |
| | 329 | Containing Alkaline earth metal compound or Aluminum(Al) compound |
| | 228 | Consolidated metal powder compositions |
| | 229 | Flake or fibrous constituent or fibrous grain structure |
| | 230 | With nonmetal constituent - Silicon(Si) considered a metal (e.g., cermet, etc.) |
| | 231 | Molybdenum sulfide or functional constituent (e.g., lubricant, abrasive, etc.) |
| | 232 | Oxide containing |
| | 233 | With another nonmetal |
| | 234 | Oxygen(O) associated with more than one metal |
| | 235 | Oxide of Aluminum(Al), Beryllium(Be), Magnesium(Mg), Alkaline earth metal, Scandium(Sc), Yttrium(Y), Lanthanide metal, Actinide metal, Titanium (Ti), Zirconium(Zr), or Hafnium(Hf) |
| | 236 | Carbide containing |
| | 237 | With another nonmetal |
| | 239 | Carbide only of Vanadium(V), Niobium(Nb) or Columbium(Cb), or Tantalum(Ta) |
| | 240 | Carbide only of Chromium(Cr), Molybdenum(Mo), or Tungsten(W) |
| | 241 | Carbon(C) associated with more than one metal |
| | 243 | Nonmetal is elemental Carbon(C) only |
| | 244 | Containing Boron(B) or Nitrogen(N) |
| | 245 | Base metal one or more Transition metal |
| | 246 | Base metal one or more of Iron group, Copper(Cu), or Noble metal |
| | 248 | Base metal confined to Tungsten(W) |
| | 249 | Base metal one or more of Beryllium(Be), Magnesium(Mg), or Aluminum(Al) |
| | 255 | Loose particulate mixture (i.e., composition) containing metal particles |
| | 330 | PROCESSES |
| | 331 | Producing solid particulate free metal directly from liquid metal (e.g., liquid comminuting, etc.) |
| | 332 | With subsequent coating of the particles |
| | 333 | Utilizing centrifugal force or rotating forming zone to comminute liquid metal |
| | 335 | By vibrating or agitating |
| | 336 | Utilizing electrothermic energy to comminute |
| | 337 | By impinging plural liquid streams |
| | 338 | By impinging or atomizing with gaseous jet or blast |
| | 340 | By extrusion spraying or gravity fall through orifice |
| | 342 | Spheroidizing or rounding of existing solid metal particles |
| | 343 | Producing or purifying free metal powder or producing or purifying alloys in powder form (i.e., named or of size up to 1,000 microns in its largest dimension) |
| | 344 | Radioactive |
| | 345 | Utilizing electrothermic, magnetic, or wave energy |
| | 348 | Producing or purifying named magnetic material |
| | 349 | Using Phosphorus(P), Boron(B), or Silicon(Si) or compound thereof |
| | 350 | Using Alkaline earth metal or compound thereof |
| | 351 | Producing alloy |
| | 353 | Utilizing scrap material |
| | 354 | Including comminution |
| | 355 | Directly from liquid mass (e.g., by atomizing, etc.) |
| | 356 | And shaping or sintering prior to comminution |
| | 357 | With step at 300 degrees C or greater |
| | 361 | Using nonmetallic material which is liquid under standard conditions |
| | 362 | Decomposition of organo-compound containing metal or metal carbonyl |
| | 363 | At 300 degrees C or greater |
| | 364 | Combined with step at less than 300 degrees C using nonmetallic material which is liquid under standard conditions |
| | 365 | Step at 300 degrees C or greater after step at less than 300 degrees C using nonmetallic material which is liquid under standard conditions |
| | 366 | Utilizing a fluidized bed |
| | 367 | Vaporizing or condensing free metal |
| | 368 | Settling of powder in molten metal or salt bath |
| | 369 | Purifying powdered metal or reducing powdered metal compound to free metal |
| | 370 | Using nonmetallic material which is liquid under standard conditions |
| | 10.1 | Electrothermic processes (e.g., microwave, induction, resistance, electric arc, plasma, etc.) |
| | 10.11 | With zone melting or fractional crystallization |
| | 10.12 | Controlling process through sensed condition |
| | 10.13 | Electromagnetic wave energy (e.g., microwave, laser, etc.) |
| | 10.14 | Electrical induction |
| | 10.15 | Producing or treating Iron(Fe) or Iron alloy |
| | 10.18 | Producing or treating Aluminum(Al), Beryllium(Be), Cobalt(Co), Chromium(Cr), Magnesium(Mg), Nickel(Ni), Titanium(Ti), or alloy thereof |
| | 10.19 | Plasma |
| | 10.2 | Influenced by magnetic field |
| | 10.21 | Producing or treating Aluminum(Al) or Aluminum alloy |
| | 10.22 | Producing or treating Iron(Fe) or Iron alloy |
| | 10.23 | Consumable metal-containing electrode |
| | 10.24 | Electroslag remelting |
| | 10.25 | Producing or treating Chromium(Cr), Cobalt(Co), Copper(Cu), Iron(Fe), Manganese(Mn), Nickel(Ni), Titanium(Ti), or alloy thereof |
| | 10.26 | Producing or treating Titanium(Ti) or Zirconium(Zr) or alloy thereof |
| | 10.27 | Carbothermic reduction of Aluminum(Al) compound |
| | 10.28 | With volatilization of metal halide |
| | 10.29 | Distillation or volatilization of refined metal or compound thereof |
| | 10.34 | Rotating chamber |
| | 10.35 | Reducing or smelting slag or dross as starting material |
| | 10.36 | Exhaust or top gas reused or treated |
| | 10.39 | Adding gaseous treating agent |
| | 10.4 | Gas contains gaseous Oxygen |
| | 10.43 | Hydrogen or Water vapor |
| | 10.44 | Carbon monoxide or Carbon dioxide |
| | 10.45 | Noble gas, Nitrogen, or inert gas not otherwise identified |
| | 10.46 | Adding solid treating agent, slag or flux |
| | 10.47 | Magnesium(Mg) or compound thereof |
| | 10.48 | Aluminum(Al) or compound thereof |
| | 10.49 | Boron(B) or compound thereof |
| | 10.5 | Silicon(Si) or compound thereof |
| | 10.54 | Alkali metal, Alkaline earth metal, or compound thereof |
| | 10.55 | Calcium fluoride (e.g., Fluorspar, Fluorite, etc.) |
| | 10.56 | Calcium carbide |
| | 10.57 | Calcium carbonate (e.g., limestone, etc.) |
| | 10.58 | Calcium oxide (e.g., lime, calx, etc.) |
| | 10.59 | Carbon(C) containing material (e.g., Carbon, carbonaceous material, Carbide, etc.) |
| | 10.62 | Reducing or smelting |
| | 10.64 | Vacuum purifying or degassing |
| | 10.65 | Melting or holding melt |
| | 10.67 | Magnetic (e.g., electromagnetic, etc.) or electrostatic processes |
| | 375 | Process control responsive to sensed condition |
| | 376 | Removing material from process to sense condition |
| | 378 | Pressure sensed |
| | 380 | Temperature sensed |
| | 384 | Composition sensed |
| | 386 | Characteristic of treated material sensed (e.g., density, etc.) |
| | 387 | Flow rate sensed |
| | 388 | Preparing for amalgamation, preparing and amalgamating, or breaking amalgam to produce free metal |
| | 389 | And displacing with a metal other than Mercury(Hg) |
| | 390 | Utilizing a Halogen containing agent |
| | 391 | Utilizing a Nitrogen(N) containing agent |
| | 392 | Producing or treating free metal |
| | 393 | Utilizing Radioactive material, producing or treating Radioactive metal |
| | 400 | Free metal production from sea nodules |
| | 404 | Separating liquid metal by centrifuging |
| | 405 | Removing gas from liquid metal by use of gas permeable membrane |
| | 406 | Adsorbing impurity from vaporous or liquid metal |
| | 407 | Filtering vaporous or liquid metal |
| | 408 | Alkali metal, singly or in combination |
| | 409 | Magnesium(Mg) |
| | 410 | Noble metal, singly or in combination |
| | 411 | Copper(Cu) |
| | 412 | Aluminum(Al) |
| | 413 | From metal carbonyl or Carbon monoxide complex |
| | 414 | At 300 degrees C or greater (e.g., pyrometallurgy, etc.) |
| | 415 | Foam |
| | 416 | Combined with step at less than 300 degrees C using nonmetallic material which is liquid under standard conditions (e.g., hydrometallurgy, etc.) |
| | 417 | Obtaining metal from photographic waste |
| | 418 | Obtaining metal from electrolytic slime |
| | 419 | Step at less than 300 degrees C using nonmetallic material which is liquid under standard conditions after a step at 300 degrees C or greater |
| | 420 |  Step at less than 300 degrees C using nonmetallic material which is liquid under standard conditions is reduction to free metal |
| | 426 | Noble metal obtained |
| | 429 | Copper(Cu) obtained |
| | 430 | Iron(Fe), Cobalt(Co), or Nickel(Ni) obtained |
| | 431 | Zinc(Zn), Cadmium(Cd), or Mercury(Hg) obtained |
| | 432 | Tin(Sn) or Lead(Pb) obtained |
| | 433 | Iron(Fe) |
| | 434 | With concurrent production of hydraulic cement |
| | 435 | With concurrent production of Titanium dioxide |
| | 436 | With consolidation (e.g., pelletizing, etc.) of solid metallic Iron(Fe) product after reduction |
| | 437 | Reducing Iron(Fe) halide |
| | 438 | Making wrought Iron(Fe) |
| | 439 | Pouring molten Iron(Fe) into molten slag (i.e., Aston process) |
| | 440 | Utilizing moving hearth |
| | 441 | Directly from Iron(Fe) compound only (no metallic Iron) |
| | 443 | Reducing in gaseous suspension |
| | 444 | Fluidized bed |
| | 445 |  With melting of Iron(Fe) |
| | 447 | With solid in fluidized bed in addition to reducible Iron(Fe) compound |
| | 450 | Using plural fluidized bed furnaces |
| | 451 | Using plural fluidized bed zones within a furnace |
| | 452 | Solid product produced (without melting) |
| | 453 | Cyclone apparatus used |
| | 454 | Using same inlet to feed solid and gas |
| | 458 | Blast furnace reduction to produce molten Iron(Fe) |
| | 459 | Using additive to the blast |
| | 467 | Tapping molten product |
| | 468 | Top gas recovery |
| | 469 | Specified method of charging burden |
| | 470 | Defined composition of slag |
| | 471 | Defined composition of reductant |
| | 472 | Defined composition of Iron(Fe) source |
| | 473 | Reduction in closed retort (e.g., Hoganas process, etc.) |
| | 474 | Reduction in rotary kiln |
| | 475 | With melting of Iron(Fe) product |
| | 477 | Introducing solid reductant into rotary kiln |
| | 478 | Solid reductant is recycled |
| | 479 | Any part of the charge is consolidated by agglomerating, compacting, indurating, or sintering (e.g., pelletized ore, flux, or reductant, etc.) |
| | 480 | Reducible Iron(Fe) compound and solid reductant fed through same end of rotary kiln |
| | 482 | With generation of gaseous reductant outside rotary kiln |
| | 483 | Superposed multiple hearth reduction |
| | 484 | Moving furnace or hearth (e.g., moving belt, etc.) |
| | 486 | Heating reduction zone by heat conducted through walls of zone |
| | 488 | Reduction to metallic Iron(Fe) within shaft furnace |
| | 489 | Externally supplied gas reductant |
| | 490 | Solid Iron(Fe) produced within shaft furnace |
| | 491 |  With melting Iron(Fe) product outside shaft furnace |
| | 493 | Using solid Carbon(C) to generate gas in separate furnace (e.g., Wiberg process, etc.) |
| | 495 | Direct addition of gas containing gaseous Oxygen or water to shaft furnace (e.g., continuous HyL process, etc.) |
| | 496 | With reformation of reducing gas in separate furnace (e.g., Midrex process, etc.) |
| | 499 | Molten Iron(Fe) produced in shaft furnace |
| | 500 | Reduction in molten state |
| | 501 | Gas injection below surface of melt |
| | 502 | Gas injection over surface of melt (e.g., as in reverberatory furnace, etc.) |
| | 503 | Reduction in presence of solid Carbon(C) containing material (e.g., coke, coal, carbides, etc.) |
| | 505 | Reduction with externally applied gas (e.g., batch HyL process, etc.) |
| | 506 | Reduction in the presence of liquid carbonaceous reductant (e.g., petroleum, pitch, etc.) |
| | 507 | Melting Iron(Fe) or treating molten Iron |
| | 508 | Vacuum treatment of molten Iron(Fe) |
| | 513 | In reverberatory furnace (e.g., open-hearth, Siemens-Martin, puddling, etc.) |
| | 514 | With treating of molten Iron(Fe) with gas outside reverberatory furnace (e.g., in Bessemer converter, etc.) |
| | 515 | With melting Iron(Fe) in shaft furnace |
| | 516 | Using gaseous Oxygen in a higher concentration than in ambient air |
| | 517 | With addition of solid elemental Carbon(C) or employing elemental Carbon furnace lining |
| | 518 | With compound containing Alkali metal and Oxygen (e.g., Sodium nitrate, Sodium carbonate, etc.) |
| | 519 | With Halogen or Halogen containing compound (e.g., Sodium chloride, Fluorspar, etc.) |
| | 520 | With Alkaline earth metal or Magnesium(Mg) containing compound |
| | 521 | With Transition metal compound |
| | 523 | Melting solid Iron(Fe) |
| | 524 | Sequential treatment of molten Iron(Fe) in plural apparatus with different linings (e.g., acid Bessemer followed by basic Bessemer, etc.) |
| | 525 | Impinging free falling molten metal stream or spray with a gas or solid agent or spraying (e.g., atomizing, etc.) of molten metal |
| | 526 | Adding solid treating agent in form of wire, rod, or article with surface feature or in container or by plunging means |
| | 527 | In rotary kiln (e.g., Kaldo process, etc.) |
| | 528 | Injecting gas or nonmetalliferous liquid which gasifies into, onto, or through premelted Iron(Fe) or slag layer thereon |
| | 529 | With hydrocarbon liquid or gas present |
| | 530 | And hydrocarbon in surrounding relationship to gaseous Oxygen (e.g., hydrocarbon in outer concentric tube, etc.) |
| | 531 | And adding solid agent, slag, or flux to premelted Iron(Fe) or slag layer thereon |
| | 532 | Loose elemental Carbon(C), coal, or coke (e.g., carburizing, etc.) |
| | 533 | With solid entrained in gas or injected by gas pressure |
| | 534 |  Boron(B) or compound thereof used in process |
| | 535 | Metal halide used in process |
| | 536 | Carbide used in process |
| | 537 | Elemental metal or elemental Silicon(Si) used in process |
| | 538 | Iron(Fe) containing compound used in process |
| | 539 | Alkali metal compound or Alkaline earth metal compound used in process |
| | 540 | Gas contains gaseous Oxygen |
| | 541 | Metal halide |
| | 542 | Carbide |
| | 543 | Elemental metal or elemental Silicon(Si) |
| | 544 | Iron(Fe) containing compound |
| | 545 | Alkali metal compound or Alkaline earth metal compound |
| | 546 | Noble gas or inert gas not otherwise identified |
| | 547 | Gas compound containing Oxygen (e.g., Carbon monoxide, Carbon dioxide, Water, etc.) |
| | 548 | Gas contains gaseous Oxygen |
| | 549 | With treatment of exhaust gas |
| | 551 | Injecting from above and below melt surface |
| | 553 | Injecting only from above melt surface |
| | 556 | Injecting only from below melt surface |
| | 558 | Noble gas or inert gas not otherwise identified |
| | 559 | Gas compound containing Oxygen (e.g., Carbon monoxide, Carbon dioxide, Water, etc.) |
| | 560 | Treating premelted Iron(Fe) or slag layer thereon by adding solid agent, slag, or flux |
| | 561 | Loose elemental Carbon(C), coal, or coke (e.g., carburizing, etc.) |
| | 562 | Sulfur(S) or compound thereof |
| | 563 | Nitrate, Chlorate, Permanganate, or Peroxide |
| | 564 | Boron(B) or compound thereof |
| | 565 | Metal halide |
| | 566 | Carbide |
| | 567 | Elemental metal or elemental Silicon(Si) |
| | 569 | Iron(Fe) containing compound |
| | 570 | Alkali metal compound or Alkaline earth metal compound |
| | 571 | Melting solid Iron(Fe) |
| | 572 | Melting packaged Iron(Fe) or Iron of specified structure to facilitate melting (e.g., shaped bale of scrap, etc.) |
| | 573 | In shaft furnace (e.g., cupola, etc.) |
| | 574 | Without the use of solid, carbonaceous material (e.g., without coke, etc.) |
| | 575 | Using Oxygen in a higher concentration than ambient air |
| | 576 | Using both a solid carbonaceous fuel (e.g., coke, etc.) and a fluid (e.g, natural gas, etc.) |
| | 577 | Defined composition of solid fuel other than nominal "coke" |
| | 578 | With Calcium carbide |
| | 579 | With Alkali metal compound |
| | 580 | In closed vessel with heat conducted through walls only (e.g., crucible melting, etc.) |
| | 581 | Melting scrap |
| | 582 | Separating slag from molten Iron(Fe) |
| | 583 | Stirring or agitating molten Iron(Fe) |
| | 584 | Pouring or tapping molten Iron(Fe) |
| | 585 | Nonferrous |
| | 586 | Concurrent production of Nonferrous metal and other desired nonmetallic product (e.g., cement, etc.) |
| | 587 | Countercurrent liquid-liquid extraction of molten Nonferrous metal |
| | 588 | Fractionation of molten Nonferrous metal (e.g., with reflux, etc.) |
| | 589 | Alkali metal, singly or in combination |
| | 593 | Beryllium(Be) |
| | 594 | Magnesium(Mg) |
| | 605 | Alkaline earth metal, singly or in combination |
| | 610 | Rare earth metal, singly or in combination |
| | 611 | Refractory metal, singly or in combination |
| | 612 | Titanium(Ti), Zirconium(Zr), or Hafnium(Hf), singly or in combination |
| | 613 | Reduction |
| | 614 | Using free metal or alloy reductant |
| | 620 | Of Titanium(Ti), Zirconium(Zr), or Hafnium(Hf) compound containing Halogen |
| | 621 | Treating molten Titanium(Ti), Zirconium(Zr), or Hafnium(Hf) |
| | 622 | Vanadium(V), Niobium(Nb) or Columbium(Cb), or Tantalum(Ta), singly or in combination |
| | 623 | Chromium(Cr), Molybdenum(Mo), or Tungsten(W), singly or in combination |
| | 624 | Manganese(Mn) |
| | 626 | Cobalt(Co) |
| | 628 | Nickel(Ni) |
| | 631 | Noble metal, singly or in combination |
| | 638 | Copper(Cu) |
| | 639 | Treating material in gaseous suspension |
| | 640 | Treating slag or dross |
| | 641 | Reduction |
| | 646 | Treating molten Copper(Cu) |
| | 653 | Melting Copper(Cu) in shaft furnace |
| | 654 | Zinc(Zn) |
| | 655 | Treating slag or dross |
| | 656 | Reduction |
| | 663 | Treating molten or vaporous Zinc(Zn) |
| | 668 | Cadmium(Cd) |
| | 670 | Mercury(Hg) |
| | 671 | Aluminum(Al) |
| | 672 | Treating slag or dross |
| | 673 | Reduction |
| | 674 | Carbothermic |
| | 675 | Decomposition of organo-compound containing Aluminum(Al) |
| | 676 | Of Aluminum(Al) halide |
| | 678 | Treating molten Aluminum(Al) |
| | 686 | Melting Aluminum(Al) |
| | 688 | Gallium(Ga) or Indium(In) |
| | 689 | Germanium(Ge) |
| | 690 | Tin(Sn) |
| | 693 | Lead(Pb) |
| | 694 | Treating material in gaseous suspension or gaseous state |
| | 695 | Reduction |
| | 697 | Treating molten Lead(Pb) |
| | 703 | Antimony(Sb) |
| | 705 | Bismuth(Bi) |
| | 706 | Arsenic(As) |
| | 707 | Reducing or smelting unnamed ore |
| | 708 | Stirring or agitating of molten material |
| | 709 | Covering the surface of molten metal |
| | 710 | Below 300 degrees C |
| | 711 | Using nonmetallic material which is liquid under standard conditions (e.g., hydrometallurgy, etc.) |
| | 712 | Involving mining or in situ operation |
| | 713 | From photography material |
| | 714 | From electrolytic or cementation slime |
| | 715 | Removing coating to recover free metal from substrate or coating |
| | 717 | Reducing to free metal with gas |
| | 721 | Utilizing organic reducing agent |
| | 722 | Involving organic compound containing metal or organic agent for agglomerating metal |
| | 724 | Displacing by another metal (i.e., electromotive series) |
| | 725 | Lead(Pb) or Zinc(Zn) recovered as free metal |
| | 726 | Copper(Cu) recovered as free metal |
| | 727 | And flotation |
| | 728 | And injecting or pressurizing with air or Oxygen |
| | 729 | From Cyanide solution |
| | 730 | With agitating or abrading |
| | 731 | Utilizing leaching agent containing Sulfur(S) |
| | 732 | Noble metal recovered as free metal |
| | 738 | Nickel(Ni) or Cobalt(Co) recovered as free metal |
| | 739 | Utilizing chemical agent to precipitate free metal |
