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 Class   203DISTILLATION: PROCESSES, SEPARATORY
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  1           WITH MEASURING, TESTING OR INSPECTING
  2           . (1 indent ) Of temperature or pressure
  3           . (1 indent ) Of concentration
  4           INCLUDING PURGING OF THE SYSTEM
  5           SEPARATING ISOTOPES OR TAUTOMERS
  6           ADDITION OF MATERIAL TO DISTILLAND TO INHIBIT OR PREVENT REACTION OR TO STABILIZE
  7           . (1 indent ) For scale inhibiting or corrosion preventing
  8           . (1 indent ) For inhibiting or preventing a polymerization reaction
  9           .. (2 indent ) Of unsaturated hydrocarbon
  10           WATER PURIFICATION ONLY
  11           . (1 indent ) Under pressure or vacuum
  12           DISTILLING TO SEPARATE OR REMOVE ONLY WATER
  13           . (1 indent ) From nitric acid
  14           . (1 indent ) From organic compound
  15           .. (2 indent ) Organic acid
  16           ... (3 indent ) Acetic
  17           .. (2 indent ) Aldehyde or ketone
  18           .. (2 indent ) Alcohol
  19           ... (3 indent ) Ethanol
  20           INCLUDING DEFOAMING OR INHIBITING FOAM
  21           AND RECOVERING HEAT BY INDIRECT HEAT EXCHANGE
  22           . (1 indent ) Utilizing recovered heat for heating feed
  23           .. (2 indent ) Distillation residue as heat source
  24           .. (2 indent ) Compressed vapor as heat source
  25           . (1 indent ) Utilizing recovered heat for heating the distillation zone
  26           .. (2 indent ) Compressed vapor as heat source
  27           . (1 indent ) Utilizing recovered heat in subsequent step in process
  28           WITH CHEMICAL REACTION
  29           . (1 indent ) Including step of adding catalyst or reacting material
  30           .. (2 indent ) For polymerizing unwanted component
  31           .. (2 indent ) Oxidizing material
  32           .. (2 indent ) Reducing material
  33           .. (2 indent ) Inorganic salt containing oxygen in the anion
  34           .. (2 indent ) Acid
  35           ... (3 indent ) Phosphoric or sulfuric acid
  36           .. (2 indent ) Alkaline oxide or hydroxide
  37           ... (3 indent ) Alkali metal hydroxide
  38           .. (2 indent ) Organic material
  39           WITH DISPARATE PHYSICAL SEPARATION
  40           . (1 indent ) Of entrained particles from a vapor or gas
  41           . (1 indent ) Utilizing solid sorbent
  42           . (1 indent ) Utilizing liquid sorption of component from gas or vapor
  43           . (1 indent ) Utilizing liquid-liquid extracting of distillation product
  44           .. (2 indent ) Of distillate
  45           ... (3 indent ) And distilling raffinate phase
  46           ... (3 indent ) And distilling extractant phase
  47           . (1 indent ) Utilizing removing solid from liquid
  48           .. (2 indent ) By crystallizing
  49           CONVECTIVE DISTILLATION WITH NORMALLY GASEOUS MEDIUM, E.G., AIR
  50           ADDING MATERIAL TO DISTILLAND EXCEPT WATER OR STEAM PER SE
  51           . (1 indent ) At least two materials
  52           .. (2 indent ) Mixtures of hydrocarbons
  53           .. (2 indent ) One material is water
  54           ... (3 indent ) A second material is aldehyde or ketone
  55           ... (3 indent ) A second material is an alcohol
  56           .. (2 indent ) One additive an alcohol or ether
  57           . (1 indent ) Organic compound
  58           .. (2 indent ) Heterocyclic
  59           .. (2 indent ) Amine
  60           .. (2 indent ) Ester
  61           .. (2 indent ) Acid
  62           .. (2 indent ) Aldehyde or ketone
  63           .. (2 indent ) Alcohol or ether
  64           ... (3 indent ) Polyhydroxy alcohol or ether derivative thereof
  65           ... (3 indent ) Hydroxy aromatic (e.g., Phenol)
  66           ... (3 indent ) Methanol
  67           .. (2 indent ) Halogenated hydrocarbon
  68           .. (2 indent ) Hydrocarbon
  69           ... (3 indent ) Aromatic
  70           ... (3 indent ) Acyclic
  71           PLURAL DISTILLATIONS PERFORMED ON SAME MATERIAL
  72           . (1 indent ) One a filming distillation
  73           . (1 indent ) One a distillation under positive pressure or vacuum
  74           .. (2 indent ) Distillation of initial distillate
  75           ... (3 indent ) And return of distillation product to a previous distillation zone
  76           ... (3 indent ) Including the addition of water or steam
  77           ... (3 indent ) Initial distillation under positive pressure or vacuum
  78           .. (2 indent ) And returning distillation product to a previous distillation zone
  79           .. (2 indent ) Including the addition of water or steam
  80           .. (2 indent ) Initial distillation under positive pressure or vacuum
  81           . (1 indent ) Distillation of initial distillate
  82           .. (2 indent ) And returning distillation product to a previous distillation zone
  83           .. (2 indent ) Including the addition of water or steam
  84           . (1 indent ) And returning distillation product to a previous distillation zone
  85           . (1 indent ) Including the addition of water or steam
  86           DISTILLATION IN APPARATUS OR ELEMENT OF SPECIFIC MATERIAL
  87           WITH FRACTIONAL CONDENSATION OF VAPOR OUTSIDE STILL
  88           FLASH VAPORIZATION OF DISTILLAND
  89           FILMING OF DISTILLAND FOR VAPORIZATION
  90           SPRAYING OF DISTILLAND INTO VAPORIZATION ZONE
  91           VAPORIZATION ZONE UNDER POSITIVE PRESSURE OR VACUUM
  92           . (1 indent ) Including the addition of water or steam
  93           .. (2 indent ) And returning product of distillation step to distillation zone
  94           . (1 indent ) And returning product of distillation step to distillation zone
  95           INCLUDING ADDITION OF WATER OR STEAM
  96           . (1 indent ) To distillation column
  97           . (1 indent ) And returning product of distillation step to distillation zone
  98           AND RETURNING PRODUCT OF DISTILLATION STEP TO DISTILLATION ZONE
  99           MISCELLANEOUS SEPARATORY
 
 CROSS-REFERENCE ART COLLECTIONS
 
  100           PARTICULAR TYPE OF HEATING
 
 FOREIGN ART COLLECTIONS
 
  FOR000           CLASS-RELATED FOREIGN DOCUMENTS
 
 DIGESTS
 
   DIG1           SOLAR STILL
   DIG2           LABORATORY DISTILLATION
   DIG3           ACRYLONITRILE
   DIG4           HEAT PUMP
   DIG5           HUMAN WASTE
   DIG6           REACTOR-DISTILLATION
   DIG7           START UP OR SHUT DOWN
   DIG8           WASTE HEAT
   DIG9           PLURAL FEED
   DIG10           VINYL ACETATE
   DIG11           BATCH DISTILLATION
   DIG13           SPIRITS
   DIG14           EJECTOR-EDUCTOR
   DIG16           COMBINATION
   DIG17           SALINE WATER CONVERSION
   DIG18           CONTROL
   DIG19           SIDESTREAM
   DIG20           POWER PLANT
   DIG21           ACRYLIC ACID OR ESTER
   DIG22           ACCESSORIES
   DIG23           METHANOL
   DIG24           MOBILE, MARINE DISTILLER
   DIG25           NON-DISTILLING BOTTOMS TREATMENT


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This data is current as of June/2006