Production of unsaturated hydrocarbons by selective cracking

Production of unsaturated hydrocarbons by selective cracking

Patent Report Catalysts for manufacture Crystalline aluminosilicates [? 3.5:1 SiO*-AlsOs mol ratio] are contacted with an aqueous Fe salt at pH 2-...

122KB Sizes 19 Downloads 111 Views

Patent

Report

Catalysts

for manufacture

Crystalline aluminosilicates [? 3.5:1 SiO*-AlsOs mol ratio] are contacted with an aqueous Fe salt at pH 2-9, then treated at pH 5 3 to give the title aluminosilicates. The title compounds are useful as catalysts for hydrogeneration, toluene conversion, disproportionation, etc.

of ketones

K.D. Olson . Union Carbide Corp. U.S. 4,704,476, Nov. 3, 1967; Appt.

June

25, 1966

Higher-molecular wt. ketones are prepared by passing ketone(s) and hydrogen over crystalline silicoaluminophosphates in the presence of hydrogenation catalysts, e.g., a SAPO-11 molecular sieve impregnated with tetraaminepalladium [II] chloride.

Alkylatidn

of aromatic

amines

with

D.D. Dickson; W.F. Burgoyne, Jr. Air Products and Chemicals Inc. Eur. Pat. Appl. 226,761, July 1, 1967;

olefins

U.S. Appl.

Nov.

6, 1965

Aromatic amines are alkylated by acyclic or cyclic monoolefins presence of acidic crystalline zeolite catalysts. The method high selectivity for ortho positions.

Preparation

of 2-[aminoaryll-2-[hydroxyaryl]

K. Taniguchi; Y. Shigejo; Y. Kurano Mitsui Petrochemical Industries Ltd Jpn Kokai Tokkyo Koho 67,116,546, 1965

May

in the gives

Appl.

Nov.

15,

of vinylidene

olefins

R.C. Williamson; J.J. Harrison Chevron Research Co. U.S. 4,697,040, Sept. 29, 1967; Appl.

Feb. 26, 1966

Alpha-olefins are purified by removal of vinylidene olefins MejCH,l,]RIC:CH, ]R = alkvl: n = 0 or inteaerl bv contactina the olefin r&&e with U-Y 52 ieolites so as to isimkri;e the vinylidene olefins to trisubstituted ethylene compounds.

Reforming

for New Application Oct. 12,1967;

Appl.

Development

Reforming/dehydrocyclization

Apr. 3,1966

catalysts

R.J. Pellet Corp. 242,616, Oct. 26, 1967;

U.S. Appl.

Mar.

27, 1966

The title catalysts comprises an effective amount of 2 1 metal from group VIII and 2 1 medium-pore silicoaluminophosphate, e.g., a P&Cl-loaded silicoaluminophosphate [i.e., SAPO-111.

Conversion

of crude

methanol

M.N. Harandi; H. Owen; SC. Smyth Mobil Oil Corp. U.S. 4.709.113, Nov. 24, 1967; Appl.

of iron-containing

aluminosilicate

catalysts

T. Sanefuchi; K. Nito Research Association of Heavy Oil Countermeasure Technology Jpn Kokai Tokkyo Koho 67,207,713, Sept. 12, 1967; Appl. Mar. 1966

528

ZEOLITES,

1988, Vol8,

November

catalysts 67,221,449,

Sept. 29, 1967;

Production cracking

of unsaturated

7,

U.S. Appl.

hydrocarbons

B.K. Sharma British Petroleum Co. Plc. Eur. Pat. Appl. 243,129, Oct. 26, 1967;

Mar.

U.K. Appl.

by selective

Apr. 24, 1966

Unsaturated hydrocarbons (useful as feedstocks for producing polvolefins, alcohols, surfactants, alkyl aromatics, diesel and jet fuels) are produced by selectively cracking paraffinic hydrocarbons over a tectometallosilicate of the Theta-l zeolite type loaded with 0.06-0.6 wt.% of a metal or metal ion of Re, Ni, Pd or Pt at elevated temperature.

catalysts

for manufacture

of halobenzene

20,1967;

Appl.

Halobenzene derivatives were prepared by liquid-phase of benzene and/or its derivatives in the presence pretreated with alkaline solutions (pH 2 11).

Preparation

of aromatic

de-

Nov. 6,1965 halogenatin of L-zeolites

hydrocarbons

H. Nakajima; M. Furuya Technology Research Association for New Application Development for Light- Weight Fractions Jpn Kokai Tokkyo Koho 67,175,430; 67,175,430; 67,175,431; Aug. 1967; Appls. Jan. 26 and Jan. 29,1966

1,

Aromatic hydrocarbons are prepared by aromatization of olefins, paraffins and/or naphthenes over crystalline zeolite catalysts containing Zn and/or Cr.

derivatives

T. Mayake; K. Sekizawa; T. Hironaka et al. Toyo Soda Mfg. Co. Ltd. Jpn Kokai Tokkyo Koho 67.153.234, July 6,1967;

Apr. 29, 1967

Apr. 30, 1966

High-octane gasoline is manufactured by cracking of hydrocarbon feedstocks over a catalyst comprising t 60 wt.% of large-pore zeolite. The large-pore zeolite is preferably a beta zeolite (NazO content I 0.3 wt.%), and/or ZSM-20 (Na*O content 5 0.5 wt.%).

gHalobenzene

to gasoline

A process is described for converting crude aqueous MeDH feedstock to gasoline boiling-range hydrocarbons in contact with a medium-pore shape-selective crystalline acid zeolite catalyst, e.g., HZSM-5.

Manufacture

U.K. Appl.

M. Nakano; K. Sekizawa; S. Fujii et al. Toyo Soda Mfg. Co. Ltd. Jpn Kokai Tokkyo Koho 67,106,630, May

Single-ring aromatic hydrocarbons [particularly C =s gasoline fractions] are produced by contacting a 1:[0.05-11 wt. mixture of light naphtha [containing 2 60 wt.% C+s alkanes] and a recycle gas [mainly containing CH4 and &He] with a zeolite catalyst [containing 2 1 metal compound selected from Ga, Zn, Pd, Pt, Ti, Cd, Ni, Cu, Re, Fe, Ge and Cr], e.g., a Ga-ZSM-5 catalyst.

P.K. Coughlin; Union Carbide Eur. Pat. Appl.

cracking

L-zeolite rivatives

of naphtha

S. Oki; K. Hirokawa; T. Shimokawa Technology Research Association for Light-Weight Fractions Jpn Kokai Tokkyo Koho 67.232467,

hydrocarbons

Catalysts for the manufacture of aromatic hydrocarbons from &-rich hydrocarbon mixtures, which give increased yields with reduced formation of polynuclear aromatic hydrocarbons, comprise a crystalline aluminosilicate (Si-AI molar ratio 2 5:1), e.g., zeolite ZSM-5, loaded with Ga and Rh or Pt.

W.R. Grace and Co. Jpn Kokai Tokkyo Koho 21,1966

The title phenol derivatives, useful as intermediates for synthetic rubbers, polyurethanes, epoxy resins, thermal-recording paper developers, antioxidants, dyes, and agrochemicals, are prepared by addition reaction of monoalkenylphenols with aniline derivatives over synthetic zeolite catalysts, e.g., Y zeolite.

lsomerization

of aromatic

E.A. Hyde; T.K. McNiff British Petroleum Co. Pk. Eur. Pat. Appl. 244,162, Nov. 4, 1967;

Zeolite

alkanes

26, 1967;

Manufacture

Appl.

Dec. 27,1965

Liquid-phase halogenation of CsHs and/or its derivatives to p halobenzene derivatives is catalysed by faujasite-type zeolites, e.g., NaY, in the presence of S compounds.

Light

paraffin

conversion

S. Nojima; S. Yokoyama; K. lida et al. Technology Research Association for NewApplication for Light-Weight Fractions Jpn Kokai Tokkyo Koho 67,265,967; Dec. 11, 1967; 1966

Development Appl.

June

3,