CH405279A - Procédé pour empêcher la formation d'un dépôt d'acide maléique brut solide sur une surface en contact avec une solution sursaturée de l'acide brut ou pour éliminer un tel dépôt après sa formation - Google Patents
Procédé pour empêcher la formation d'un dépôt d'acide maléique brut solide sur une surface en contact avec une solution sursaturée de l'acide brut ou pour éliminer un tel dépôt après sa formationInfo
- Publication number
- CH405279A CH405279A CH892361A CH892361A CH405279A CH 405279 A CH405279 A CH 405279A CH 892361 A CH892361 A CH 892361A CH 892361 A CH892361 A CH 892361A CH 405279 A CH405279 A CH 405279A
- Authority
- CH
- Switzerland
- Prior art keywords
- deposit
- formation
- crude
- temperature
- acid
- Prior art date
Links
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 title claims description 12
- 230000015572 biosynthetic process Effects 0.000 title claims description 11
- 239000007787 solid Substances 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 10
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 title claims description 9
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 title claims description 9
- 239000011976 maleic acid Substances 0.000 title claims description 9
- 239000002253 acid Substances 0.000 title claims description 5
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 7
- 239000008096 xylene Substances 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000004821 distillation Methods 0.000 description 5
- 230000001464 adherent effect Effects 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000001530 fumaric acid Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011269 tar Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/54—Preparation of carboxylic acid anhydrides
- C07C51/56—Preparation of carboxylic acid anhydrides from organic acids, their salts, their esters or their halides, e.g. by carboxylation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/54—Preparation of carboxylic acid anhydrides
- C07C51/573—Separation; Purification; Stabilisation; Use of additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00245—Avoiding undesirable reactions or side-effects
- B01J2219/00252—Formation of deposits other than coke
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Furan Compounds (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US48843A US3120455A (en) | 1960-08-11 | 1960-08-11 | Method for the removal of deposited crude maleic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH405279A true CH405279A (fr) | 1966-01-15 |
Family
ID=21956739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH892361A CH405279A (fr) | 1960-08-11 | 1961-07-29 | Procédé pour empêcher la formation d'un dépôt d'acide maléique brut solide sur une surface en contact avec une solution sursaturée de l'acide brut ou pour éliminer un tel dépôt après sa formation |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3120455A (enrdf_load_stackoverflow) |
| BE (1) | BE607012A (enrdf_load_stackoverflow) |
| CH (1) | CH405279A (enrdf_load_stackoverflow) |
| DE (1) | DE1443118A1 (enrdf_load_stackoverflow) |
| ES (1) | ES269737A1 (enrdf_load_stackoverflow) |
| LU (1) | LU40491A1 (enrdf_load_stackoverflow) |
| SE (1) | SE312795B (enrdf_load_stackoverflow) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2662041A (en) * | 1949-12-30 | 1953-12-08 | Sun Oil Co | Process for cleaning refining equipment |
| US2917418A (en) * | 1958-03-13 | 1959-12-15 | Eastman Kodak Co | Thermolytic process for cleaning apparatus used in processing polyethylene terephthalate |
| US3024251A (en) * | 1960-07-29 | 1962-03-06 | Scient Design Co | Process for cleaning apparatus |
-
1960
- 1960-08-11 US US48843A patent/US3120455A/en not_active Expired - Lifetime
-
1961
- 1961-07-29 CH CH892361A patent/CH405279A/fr unknown
- 1961-08-08 BE BE607012A patent/BE607012A/fr unknown
- 1961-08-09 LU LU40491D patent/LU40491A1/xx unknown
- 1961-08-10 ES ES0269737A patent/ES269737A1/es not_active Expired
- 1961-08-11 SE SE8150/61A patent/SE312795B/xx unknown
- 1961-08-11 DE DE19611443118 patent/DE1443118A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| SE312795B (enrdf_load_stackoverflow) | 1969-07-28 |
| LU40491A1 (enrdf_load_stackoverflow) | 1961-10-09 |
| US3120455A (en) | 1964-02-04 |
| ES269737A1 (es) | 1962-01-01 |
| BE607012A (fr) | 1961-12-01 |
| DE1443118A1 (de) | 1968-10-24 |
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