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1

WITH MEASURING, TESTING OR INSPECTING

2

Of temperature or pressure

3

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

For scale inhibiting or corrosion preventing

8

For inhibiting or preventing a polymerization reaction

9

Of unsaturated hydrocarbon

10

WATER PURIFICATION ONLY

11

Under pressure or vacuum

12

DISTILLING TO SEPARATE OR REMOVE ONLY WATER

13

From nitric acid

14

From organic compound

15

Organic acid

16

Acetic

17

Aldehyde or ketone

18

Alcohol

19

Ethanol

20

INCLUDING DEFOAMING OR INHIBITING FOAM

21

AND RECOVERING HEAT BY INDIRECT HEAT EXCHANGE

22

Utilizing recovered heat for heating feed

23

Distillation residue as heat source

24

Compressed vapor as heat source

25

Utilizing recovered heat for heating the distillation zone

26

Compressed vapor as heat source

27

Utilizing recovered heat in subsequent step in process

28

WITH CHEMICAL REACTION

29

Including step of adding catalyst or reacting material

30

For polymerizing unwanted component

31

Oxidizing material

32

Reducing material

33

Inorganic salt containing oxygen in the anion

34

Acid

35

Phosphoric or sulfuric acid

36

Alkaline oxide or hydroxide

37

Alkali metal hydroxide

38

Organic material

39

WITH DISPARATE PHYSICAL SEPARATION

40

Of entrained particles from a vapor or gas

41

Utilizing solid sorbent

42

Utilizing liquid sorption of component from gas or vapor

43

Utilizing liquid-liquid extracting of distillation product

44

Of distillate

45

And distilling raffinate phase

46

And distilling extractant phase

47

Utilizing removing solid from liquid

48

By crystallizing

49

CONVECTIVE DISTILLATION WITH NORMALLY GASEOUS MEDIUM, E.G., AIR

50

ADDING MATERIAL TO DISTILLAND EXCEPT WATER OR STEAM PER SE

51

At least two materials

52

Mixtures of hydrocarbons

53

One material is water

54

A second material is aldehyde or ketone

55

A second material is an alcohol

56

One additive an alcohol or ether

57

Organic compound

58

Heterocyclic

59

Amine

60

Ester

61

Acid

62

Aldehyde or ketone

63

Alcohol or ether

64

Polyhydroxy alcohol or ether derivative thereof

65

Hydroxy aromatic (e.g., Phenol)

66

Methanol

67

Halogenated hydrocarbon

68

Hydrocarbon

69

Aromatic

70

Acyclic

71

PLURAL DISTILLATIONS PERFORMED ON SAME MATERIAL

72

One a filming distillation

73

One a distillation under positive pressure or vacuum

74

Distillation of initial distillate

75

And return of distillation product to a previous distillation zone

76

Including the addition of water or steam

77

Initial distillation under positive pressure or vacuum

78

And returning distillation product to a previous distillation zone

79

Including the addition of water or steam

80

Initial distillation under positive pressure or vacuum

81

Distillation of initial distillate

82

And returning distillation product to a previous distillation zone

83

Including the addition of water or steam

84

And returning distillation product to a previous distillation zone

85

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

Including the addition of water or steam

93

And returning product of distillation step to distillation zone

94

And returning product of distillation step to distillation zone

95

INCLUDING ADDITION OF WATER OR STEAM

96

To distillation column

97

And returning product of distillation step to distillation zone

98

AND RETURNING PRODUCT OF DISTILLATION STEP TO DISTILLATION ZONE

99

MISCELLANEOUS SEPARATORY

100

PARTICULAR TYPE OF HEATING

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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