BE499776A - - Google Patents

Info

Publication number
BE499776A
BE499776A BE499776DA BE499776A BE 499776 A BE499776 A BE 499776A BE 499776D A BE499776D A BE 499776DA BE 499776 A BE499776 A BE 499776A
Authority
BE
Belgium
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE499776A publication Critical patent/BE499776A/xx
Priority claimed from GB30000/50A external-priority patent/GB694980A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0004—Crystallisation cooling by heat exchange
    • B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0004—Crystallisation cooling by heat exchange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0036—Crystallisation on to a bed of product crystals; Seeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/004—Fractional crystallisation; Fractionating or rectifying columns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/19—Sidestream
BE499776D 1947-08-26 BE499776A (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US770587A US2541682A (en) 1947-08-26 1947-08-26 Production of para xylene
GB30000/50A GB694980A (en) 1950-12-07 1950-12-07 Recovery of para xylene from hydrocarbon mixtures by fractional crystallisation
US206278A US2695323A (en) 1947-08-26 1951-01-16 Production of para xylene

Publications (1)

Publication Number Publication Date
BE499776A true BE499776A (fr)

Family

ID=32303025

Family Applications (1)

Application Number Title Priority Date Filing Date
BE499776D BE499776A (fr) 1947-08-26

Country Status (2)

Country Link
US (2) US2541682A (fr)
BE (1) BE499776A (fr)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE499776A (fr) * 1947-08-26
GB687405A (en) * 1949-03-21 1953-02-11 Robert Reid Coats Improvements in and relating to the separation of xylenes by crystallization
US2672487A (en) * 1949-05-28 1954-03-16 Standard Oil Dev Co Para xylene separation process
US2603667A (en) * 1950-01-26 1952-07-15 Phillips Petroleum Co Fractional crystallization
US2747001A (en) * 1950-06-09 1956-05-22 Phillips Petroleum Co Crystal purification process
US2651665A (en) * 1950-06-10 1953-09-08 Standard Oil Dev Co Recovery of pure paraxylene
US2614134A (en) * 1950-06-21 1952-10-14 Standard Oil Dev Co Purification of crystalline substances
US2659763A (en) * 1950-09-16 1953-11-17 California Research Corp Xylene separation
US2665316A (en) * 1950-10-21 1954-01-05 Standard Oil Dev Co Recovery of durene
US2750433A (en) * 1951-03-20 1956-06-12 California Research Corp Hydrocarbon analysis and control in crystallization processes
US2766309A (en) * 1952-05-23 1956-10-09 Exxon Research Engineering Co Wash technique for paraxylene process
US2724007A (en) * 1952-07-30 1955-11-15 Exxon Research Engineering Co Para xylene separation process
DE972036C (de) * 1952-10-03 1959-05-14 Metallgesellschaft Ag Verfahren zur Abtrennung von p-Xylol aus seinen technischen Gemischen
US2848516A (en) * 1953-03-16 1958-08-19 Phillips Petroleum Co Crystal purification method
US2795634A (en) * 1953-05-01 1957-06-11 Standard Oil Co Recovery of ortho-and para-xylenes from c8 aromatic mixtures
US2827503A (en) * 1953-05-01 1958-03-18 Standard Oil Co Recovery of para-xylene from solutions containing the xylene isomers
US2795635A (en) * 1953-08-28 1957-06-11 Phillips Petroleum Co Centrifuge
US2815288A (en) * 1953-09-04 1957-12-03 Phillips Petroleum Co Crystal purification
US2866833A (en) * 1953-09-14 1958-12-30 Standard Oil Co Paraxylene purification system
US2823241A (en) * 1954-03-22 1958-02-11 Exxon Research Engineering Co Method for washing a filter cake
DE1034633B (de) * 1954-05-20 1958-07-24 Basf Ag Verfahren zur Zerlegung organischer Stoffgemische durch fraktionierte Kristallisation
US2790018A (en) * 1954-06-09 1957-04-23 Exxon Research Engineering Co Recovery of para xylene by crystallization
US2952825A (en) * 1955-07-05 1960-09-13 Marlan E Bourns Electrical resistor
US2773129A (en) * 1955-07-27 1956-12-04 Itt Flat-bank crossbar switch
US2881230A (en) * 1955-09-26 1959-04-07 Phillips Petroleum Co Fractional crystallization process
DE1934721C3 (de) * 1969-07-09 1974-01-17 Fried. Krupp Gmbh, 4300 Essen Verfahren zum Abtrennen von Flüssigkeitsfilmen von p-Xylol-Kristallen
US4662990A (en) * 1984-12-19 1987-05-05 Hanover Research Corporation Apparatus for recovering dry solids from aqueous solids mixtures
JPH03127751A (ja) * 1989-10-11 1991-05-30 Sumikin Chem Co Ltd ジメチルフェノールの精製方法
DE4011501A1 (de) * 1990-04-10 1991-10-17 Hoechst Ag Verfahren zur trennung von m- und p-dichlorbenzol
US5498822A (en) * 1994-04-04 1996-03-12 Mobil Oil Corporation Single temperature stage crystallization of paraxylene
FR2728894A1 (fr) * 1994-12-29 1996-07-05 Inst Francais Du Petrole Procede de separation de paraxylene comportant au moins deux etages de cristallisation a haute temperature
US8877014B2 (en) 2012-12-14 2014-11-04 Uop Llc Split-shell fractionation columns and associated processes for separating aromatic hydrocarbons

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1940065A (en) * 1927-12-15 1933-12-19 Ig Farbenindustrie Ag Separatrion and purification of ortho, meta and para xylene
US2383174A (en) * 1940-02-17 1945-08-21 United Gas Improvement Co Recovery of valuable hydrocarbons
US2400883A (en) * 1941-01-06 1946-05-28 Koppers Co Inc Method of refining light-oil products
US2398526A (en) * 1943-08-07 1946-04-16 Allied Chem & Dye Corp Isolation of para-xylene
US2435792A (en) * 1944-09-07 1948-02-10 Standard Oil Dev Co Chemical process
BE499776A (fr) * 1947-08-26

Also Published As

Publication number Publication date
US2695323A (en) 1954-11-23
US2541682A (en) 1951-02-13

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