JPS57126437A - Preparation of alpha-naphthol - Google Patents

Preparation of alpha-naphthol

Info

Publication number
JPS57126437A
JPS57126437A JP56012435A JP1243581A JPS57126437A JP S57126437 A JPS57126437 A JP S57126437A JP 56012435 A JP56012435 A JP 56012435A JP 1243581 A JP1243581 A JP 1243581A JP S57126437 A JPS57126437 A JP S57126437A
Authority
JP
Japan
Prior art keywords
compound
platinum
alkali
hydrogen sulfide
carrier
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP56012435A
Other languages
Japanese (ja)
Inventor
Yuji Nakamura
Hideo Goto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sugai Chemical Industry Co Ltd
Original Assignee
Sugai Chemical Industry Co Ltd
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.)
Filing date
Publication date
Application filed by Sugai Chemical Industry Co Ltd filed Critical Sugai Chemical Industry Co Ltd
Priority to JP56012435A priority Critical patent/JPS57126437A/en
Publication of JPS57126437A publication Critical patent/JPS57126437A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

PURPOSE: To prepare the titled compound by the dehydrogenation of α-tetralone using a catalyst having long duration of the activity and obtained by supporting platinum (compound) and an alkali to γ-alumina carrier, and treating the product with hydrogen sulfide or an organic sulfur compound.
CONSTITUTION: The titled compound can be prepared by the dehydrogenation of α-tetralone in the presence of a catalyst obtained by (1) supporting platinum or a platinum compound (e.g. chloroplatinic acid) and an alkali to γ-alumina carrier, and (2) treating the product with hydrogen sulfide or an organic sulfur compound (e.g. carbon disulfide). The amounts of platinum (compound) and the alkali are pref. 0.5W1.2wt% (as Pt) and 3W7wt% (as oxide) of the carrier, respectively, and that of the hydrogen sulfide or the organic sulfur compound is pref. 0.05W2.0wt% of the carrier.
EFFECT: The objective compound can be obtained in improved conversion and high selectivity.
USE: Intermediate of dyes, and raw material of pesticides.
COPYRIGHT: (C)1982,JPO&Japio
JP56012435A 1981-01-29 1981-01-29 Preparation of alpha-naphthol Pending JPS57126437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56012435A JPS57126437A (en) 1981-01-29 1981-01-29 Preparation of alpha-naphthol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56012435A JPS57126437A (en) 1981-01-29 1981-01-29 Preparation of alpha-naphthol

Publications (1)

Publication Number Publication Date
JPS57126437A true JPS57126437A (en) 1982-08-06

Family

ID=11805208

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56012435A Pending JPS57126437A (en) 1981-01-29 1981-01-29 Preparation of alpha-naphthol

Country Status (1)

Country Link
JP (1) JPS57126437A (en)

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