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Hydrocarbon cracking catalysts
Patent A method for converting C~S paraffins to aromatic hydrocarbons (particularly high-octane gasoline), comprises contacting the feedstocks with a zeolite catalyst, e.g., a H-ZSM-5 zeolite catalyst (containing a first metal selected from Cu. Zn, Ga, Cd, Ag, in, Al, TI, Ti and Zr and a second metal selected from Pt, Pd, Ni, Ru, OS, Ir, Rh, Fe, Co, La and Ce).
Preparation
of epsilon-caprolactam
H. Sato; K. Hirose; N. Ishii; Y. Umada Sumitomo Chemical Co. Ltd. Jpn KokaiTokkyo Koho 87,123,167, June4,1987;
Appl.
Feb. 25,1986
Caprolactam is prepared with high selectivity and conversion by catalytic rearrangement of cyclohexanone oxime over crystalline zeolites with Si-AI ratio 2 5OO:l.
Condensation K.D. Olson Union Carbide U.S. 4,701,562,
of aldehydes Corp. Oct. 20, 1987; Appl.
June
25, 1986
Aldehydes are condensed with ketones or aldehydes to give higher aldehydes or ketones by contacting the reactants with a silicoaluminophosphate mol sieve, e.g., SAPO-34. Condensation in the presence of H gives a saturated aldehyde or ketone. The ketone and/or aldehyde is optionally generated in situ by dehydrogenation of an alcohol, and the H liberated is used to hydrogenate the initial unsaturated condensation product to give a saturated aldehyde or ketone.
Hydrocarbon
cracking
catalysts
W.L. Scheutte; L.A. Pine Exxon Research and Engineering Co. Eur. Pat. Appl. 252,761, Jan. 13, 1988;
U.S. Appl.
July
11, 1986
A cracking catalyst and its use in catalytic cracking of hydrocarbons are described, which minimize the production of coke. The catalyst comprises: (1) a non-zeolite inorganic oxide matrix, and (2) an ultrastable Y-type crystalline zeolite, the zeolite having been pretreated by contacting with a P compound selected from HsP04, H3POL their salts or their mixtures. The matrix is selected from SiOz, A1203, Alz03-SiOz, magnesia, zirconia, titania, boria, chromia, or their mixtures.
Restructuring
of olefins
S.A.I. Barri; D.W. Walker; R. Tahir British Petroleum Co. WC. Eur. Pat. Appl. 247,802, Dec. 2, 1987;
U.K. Appl.
May
27, 1986
Cz-,,, linear olefins are converted to branched-chain olefins by contacting the feedstocks with an unmodified or partially modified Theta-l type tectometallosilicate zeolite catalyst. The converted olefins are valuable as petrochemical feedstock for producing polyolefins, alcohols, ethers and other oxygenates, surfactants, alkyl aromatics and oligomers useful as gasoline blending components.
BisIpaminocumyllbenzenes Y. Sihgeshiro; H. Oyoshi Mitsui Petrochemical Industries Ltd. Jpn Kokai Tokkyo Koho 87,155,241, 1985
July
10, 1987;
Appl.
Dec. 27,
Bis[p-aminocumyllbenzenes useful as raw materials for polyamides, polyimides, polyamic acids and epoxy resins, additives for polymers, and dyes were prepared by reaction of diisopropylbenzenedicarbinol derivatives with anilines over synthetic zeolite catalysts, e.g., Ca-Y type zeolite.
Conversion carbons
of methanol
to low molecular
weight
hydro-
J.A. Hinnenkamp; J.A. Scheben; V.V. Walatka National Distillers and Chemical Corp. U.S. 4,724,275, Feb. 9, 1988; Appl. July 1, 1985 MeOH conversion catalysts are prepared by exchanging or impregnating a group VIII metal (e.g., Pt. Pd. or Ru] on a crystalline aluminosilicate selected from zeolite ZSM-5, zeolite Y and mordenite.
N-substituted
amines
Y. Yokota; I. Hashiba; T. Kawakami Kao Corp. Jpn Kokai Tokkyo Koho 87,149,646,
et al. July 3,1987;
N-substituted amines are manufactured aldehydes with ammonia over catalysts Group VIII Pt-group elements supported zeolites.
SEPARATION Selective
Report
Appl.
Dec. 25,1985
by reacting alcohols or containing Cu, Ni, and on synthetic crystalline
PROCESSES
zeolitic
adsorbent
for gas separations
P.J. Maroulis, C.J. Coe; D.A. Roberts et a/. Air Products and Chemicals Inc. Eur. Pat. Appl. 246,572, Nov. 25, 1987; U.S. Appl.
May
22, 1986
A dehydrated chabazite adsorbent with water content c 1.5 wt.% which is 2 50% exchanged with a divalent metal or alkaline earth metal, especially Ca, is used to separate trace gases, especially CO, N and CH4 from bulk gas streams, where the trace-gas had a heat of adsorption greater than the bulk gas or the bulk gas is sizedexcluded from the zeolite. For improved separation, the adsorbent is reacted with an oxidizing atmosphere during or after dehydration [activation].
Silane
purification
by removal
of phosphine
M. Ito; H. Miyagawa; T. Abe et al. Mitsui Toatsu Chemicals Inc. Jpn Kokai Tokkyo Koho 87,191,413, 1986
Aug.
21, 1987;
Appl.
Feb. 18,
PH3-containing silane is treated with ziolite 5A adsorbent for purification. The purified silane is useful as a raw material in the semiconductor industry.
Zeolite adsorbents isomers
for separation
H.A. Zinnen; T.S. Franczyk UOP inc. U.S. 4,714,783, Dec. 22, 1987; Appl.
of nitrobenzaldehyde
May
12, 1986
o-Nitrobenzaldehyde (I) is separated from mixtures with mnitrobenzaldehyde (II) and/or p-nitrobenzaldehyde (Ill) by preferential adsorption on zeolite Y in K+, Na+, Li+, Mg’+, or Ca”’ form or on a crystalline Al phosphate zeolite. II is separated from mixtures with I and/or Ill by preferential adsorption on zeolite X in Na+ or Li+ form. Lower alkyl acetates and formates, MeCN, and BzH are used as desorbents for recovering I and II from the zeolites.
Purification
of silanes
using
zeolites
M. Ito; H. Miyagawa; T. Abe et a/. Mitsui Toatsu Chemicals inc. Jpn Kokai Tokkyo Koho 87,212,215; Appls. Mar. 11 and Mar. 12, 1986
87,212,217,
Sept.
18, 1987;
Silicon hydrides containing PHs are treated with synthetic zeolites with mol ratio SiOz/Alz03 2 5, exchanged with divalent cations, to adsorb PH3. Pure Si materials for semiconductors are effectively obtained.
Removal
of ammonium
and phosphorus
from lake water
Y. Goto; N. Otsuka; Y. Kokubo Kankyo Kagaku Centre K.K.; Oya K.K. Jpn Kokai Tokkyo Koho 87,286,589, Dec. 12,1987;
Appl. June 3,1986
P and NH4 i N in lake water are simultaneously removed by contacting at pH 3-13 with zeolite impregnated or ion-exchanged with Fe (except Fe& and Fe&), Ni, Ca, Al and Ag, each of which reacts with HsP03 to give a barely-soluble salt.
Separating W.H. Goodman UOP Inc. U.S. 4,707,190,
maltose
Nov.
from
mixtures
17, 1987; Appl.
ZEOLITES,
of saccharides
Sept. 2, 1986
1988, Vol8,
November
529
Preparation
of epsilon-caprolactam
H. Sato; K. Hirose; N. Ishii; Y. Umada Sumitomo Chemical Co. Ltd. Jpn KokaiTokkyo Koho 87,123,167, June4,1987;
Appl.
Feb. 25,1986
Caprolactam is prepared with high selectivity and conversion by catalytic rearrangement of cyclohexanone oxime over crystalline zeolites with Si-AI ratio 2 5OO:l.
Condensation K.D. Olson Union Carbide U.S. 4,701,562,
of aldehydes Corp. Oct. 20, 1987; Appl.
June
25, 1986
Aldehydes are condensed with ketones or aldehydes to give higher aldehydes or ketones by contacting the reactants with a silicoaluminophosphate mol sieve, e.g., SAPO-34. Condensation in the presence of H gives a saturated aldehyde or ketone. The ketone and/or aldehyde is optionally generated in situ by dehydrogenation of an alcohol, and the H liberated is used to hydrogenate the initial unsaturated condensation product to give a saturated aldehyde or ketone.
Hydrocarbon
cracking
catalysts
W.L. Scheutte; L.A. Pine Exxon Research and Engineering Co. Eur. Pat. Appl. 252,761, Jan. 13, 1988;
U.S. Appl.
July
11, 1986
A cracking catalyst and its use in catalytic cracking of hydrocarbons are described, which minimize the production of coke. The catalyst comprises: (1) a non-zeolite inorganic oxide matrix, and (2) an ultrastable Y-type crystalline zeolite, the zeolite having been pretreated by contacting with a P compound selected from HsP04, H3POL their salts or their mixtures. The matrix is selected from SiOz, A1203, Alz03-SiOz, magnesia, zirconia, titania, boria, chromia, or their mixtures.
Restructuring
of olefins
S.A.I. Barri; D.W. Walker; R. Tahir British Petroleum Co. WC. Eur. Pat. Appl. 247,802, Dec. 2, 1987;
U.K. Appl.
May
27, 1986
Cz-,,, linear olefins are converted to branched-chain olefins by contacting the feedstocks with an unmodified or partially modified Theta-l type tectometallosilicate zeolite catalyst. The converted olefins are valuable as petrochemical feedstock for producing polyolefins, alcohols, ethers and other oxygenates, surfactants, alkyl aromatics and oligomers useful as gasoline blending components.
BisIpaminocumyllbenzenes Y. Sihgeshiro; H. Oyoshi Mitsui Petrochemical Industries Ltd. Jpn Kokai Tokkyo Koho 87,155,241, 1985
July
10, 1987;
Appl.
Dec. 27,
Bis[p-aminocumyllbenzenes useful as raw materials for polyamides, polyimides, polyamic acids and epoxy resins, additives for polymers, and dyes were prepared by reaction of diisopropylbenzenedicarbinol derivatives with anilines over synthetic zeolite catalysts, e.g., Ca-Y type zeolite.
Conversion carbons
of methanol
to low molecular
weight
hydro-
J.A. Hinnenkamp; J.A. Scheben; V.V. Walatka National Distillers and Chemical Corp. U.S. 4,724,275, Feb. 9, 1988; Appl. July 1, 1985 MeOH conversion catalysts are prepared by exchanging or impregnating a group VIII metal (e.g., Pt. Pd. or Ru] on a crystalline aluminosilicate selected from zeolite ZSM-5, zeolite Y and mordenite.
N-substituted
amines
Y. Yokota; I. Hashiba; T. Kawakami Kao Corp. Jpn Kokai Tokkyo Koho 87,149,646,
et al. July 3,1987;
N-substituted amines are manufactured aldehydes with ammonia over catalysts Group VIII Pt-group elements supported zeolites.
SEPARATION Selective
Report
Appl.
Dec. 25,1985
by reacting alcohols or containing Cu, Ni, and on synthetic crystalline
PROCESSES
zeolitic
adsorbent
for gas separations
P.J. Maroulis, C.J. Coe; D.A. Roberts et a/. Air Products and Chemicals Inc. Eur. Pat. Appl. 246,572, Nov. 25, 1987; U.S. Appl.
May
22, 1986
A dehydrated chabazite adsorbent with water content c 1.5 wt.% which is 2 50% exchanged with a divalent metal or alkaline earth metal, especially Ca, is used to separate trace gases, especially CO, N and CH4 from bulk gas streams, where the trace-gas had a heat of adsorption greater than the bulk gas or the bulk gas is sizedexcluded from the zeolite. For improved separation, the adsorbent is reacted with an oxidizing atmosphere during or after dehydration [activation].
Silane
purification
by removal
of phosphine
M. Ito; H. Miyagawa; T. Abe et al. Mitsui Toatsu Chemicals Inc. Jpn Kokai Tokkyo Koho 87,191,413, 1986
Aug.
21, 1987;
Appl.
Feb. 18,
PH3-containing silane is treated with ziolite 5A adsorbent for purification. The purified silane is useful as a raw material in the semiconductor industry.
Zeolite adsorbents isomers
for separation
H.A. Zinnen; T.S. Franczyk UOP inc. U.S. 4,714,783, Dec. 22, 1987; Appl.
of nitrobenzaldehyde
May
12, 1986
o-Nitrobenzaldehyde (I) is separated from mixtures with mnitrobenzaldehyde (II) and/or p-nitrobenzaldehyde (Ill) by preferential adsorption on zeolite Y in K+, Na+, Li+, Mg’+, or Ca”’ form or on a crystalline Al phosphate zeolite. II is separated from mixtures with I and/or Ill by preferential adsorption on zeolite X in Na+ or Li+ form. Lower alkyl acetates and formates, MeCN, and BzH are used as desorbents for recovering I and II from the zeolites.
Purification
of silanes
using
zeolites
M. Ito; H. Miyagawa; T. Abe et a/. Mitsui Toatsu Chemicals inc. Jpn Kokai Tokkyo Koho 87,212,215; Appls. Mar. 11 and Mar. 12, 1986
87,212,217,
Sept.
18, 1987;
Silicon hydrides containing PHs are treated with synthetic zeolites with mol ratio SiOz/Alz03 2 5, exchanged with divalent cations, to adsorb PH3. Pure Si materials for semiconductors are effectively obtained.
Removal
of ammonium
and phosphorus
from lake water
Y. Goto; N. Otsuka; Y. Kokubo Kankyo Kagaku Centre K.K.; Oya K.K. Jpn Kokai Tokkyo Koho 87,286,589, Dec. 12,1987;
Appl. June 3,1986
P and NH4 i N in lake water are simultaneously removed by contacting at pH 3-13 with zeolite impregnated or ion-exchanged with Fe (except Fe& and Fe&), Ni, Ca, Al and Ag, each of which reacts with HsP03 to give a barely-soluble salt.
Separating W.H. Goodman UOP Inc. U.S. 4,707,190,
maltose
Nov.
from
mixtures
17, 1987; Appl.
ZEOLITES,
of saccharides
Sept. 2, 1986
1988, Vol8,
November
529