US PATENT SUBCLASS 205 / 334
ELECTROLYTIC SYNTHESIS (PROCESS, COMPOSITION, AND METHOD OF PREPARING COMPOSITION)

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205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

334ELECTROLYTIC SYNTHESIS (PROCESS, COMPOSITION, AND METHOD OF PREPARING COMPOSITION) {21}
335  DF  .~> Involving measuring, analyzing, or testing during synthesis {2}
338  DF  .~> Utilizing subatmospheric or superatmospheric pressure during synthesis
339  DF  .~> Utilizing magnet or magnetic field during synthesis
340  DF  .~> Utilizing electromagnetic wave energy during synthesis (e.g., visible light, etc.)
341  DF  .~> Utilizing AC or specified wave form other than pure DC {1}
343  DF  .~> Involving fuel cell
344  DF  .~> Utilizing bipolar membrane
345  DF  .~> Utilizing plural distinct electrolytic cells where the cells are separate containers {2}
348  DF  .~> Utilizing fluidized bed or particulate electrode
349  DF  .~> Recycling electrolytic product produced during synthesis back to production cell
350  DF  .~> Treating electrode, diaphram, or membrane during synthesis (e.g., corrosion prevention, etc.)
351  DF  .~> Treating electrolyte or bath without removal from cell other than agitating, moving, regenerating, replenishing, or replacing consumed material during synthesis
352  DF  .~> Utilizing emulsion, dispersion, or suspension electrolyte system
353  DF  .~> Utilizing electrolyte system having two or more separate immiscible layers
354  DF  .~> Utilizing fused bath {6}
412  DF  .~> Heating or cooling electrolyte or bath in production cell during synthesis except in fused bath
413  DF  .~> Preparing organic compound {18}
464  DF  .~> Preparing inorganic compound {9}
557  DF  .~> Preparing alloy {1}
560  DF  .~> Preparing single metal {12}
615  DF  .~> Preparing nonmetal element {8}

DEFINITION

Classification: 205/334

ELECTROLYTIC SYNTHESIS (PROCESS, COMPOSITION, AND METHOD OF PREPARING COMPOSITION):

(under the class definition) Processes for the preparation of chemical compounds or of elements by means of electrolytic action.

(1) Note. These may be produced either by breaking them down from complex forms to simpler ones or by building up complex forms from simpler ones.

(2) Note. Branching processes for the synthesis of compounds or elements, one branch of which falls within the class definition and one branch of which is excluded thereby and which is provided for elsewhere, are classified in the outside class and cross-referenced here.

(3) Note. Processes of synthesis wherein the products of electrolysis are merely admixed within or outside the cell to produce the desired material are included, here, when claimed in combination with the electrolysis. For example, a metal salt solution may be prepared in the anodic zone of a cell by electrolytic solution of a metal anode, while in the cathodic zone of the same or another cell an alkali hydroxide may be formed. Mixing the two solutions together to produce a metal hydroxide outside the cell would not be a subsequent step

sufficient to take the process outside the class.

(4) Note. Combination processes including precedent steps for the preparation of the material for the electrolytic synthesis step, in which one or more of the precedent steps may result in the preparation of a desired product elsewhere classifiable if claimed alone, are included here and cross-referenced to the outside class. For example, if in a process including the electrolytic preparation of a free metal, the leach solution is treated with a precipitating agent in order to remove one or more of the constituents as insoluble salts or as free metals in precedent operations, thus constituting preparation of the leach solution for electrolytic separation, the process is classified in this class even though crystallization, filtering, or other conventional separation steps for the salt or metal is claimed and such product is considered a valuable by-product of the process.

SEE OR SEARCH THIS CLASS, SUBCLASS:

687+, for the purification of definite chemical compounds by electrolysis which does not include a synthesis of the desired compound. However, when a substance is electrochemically reconstituted, the process is considered electrochemical synthesis. For example, impure oxygen is fed to the cathode of a cell and pure oxygen is recovered at the anode.