Method of making hydrocarbon soluble metal compositions

Patent metadata

Field	Value
Publication number	US-2019382279-A1
Application number	US-201916440168-A
Country	US
Kind code	A1
Filing date	Jun 13, 2019
Priority date	Jun 16, 2018
Publication date	Dec 19, 2019
Grant date	—

Abstract

The present invention relates to a method of making of hydrocarbon soluble metal composition comprising of one or more metals of group VIB of the periodic table, wherein the metal having 4+ oxidation state predominantly forms highly active metal sulfide catalyst for hydro-conversion of heavy oil feedstocks in liquid phase. More particularly, present invention relates to a hydrocarbon soluble metal composition comprising of reaction products of a metal source, a lipophilic phenolic acid, a surfactant and an organophosphorus compound. The present invention also provides a one-pot process for preparation of the hydrocarbon soluble metal composition comprising reacting a metal source, a lipophilic phenolic acid, a surfactant, an organophosphorus compound and water to obtain a reaction product and drying the reaction product to obtain the hydrocarbon soluble metal composition.

First claim

1 . A hydrocarbon soluble metal composition comprising of reaction products of a metal source, a lipophilic phenolic acid, a surfactant and an organophosphorus compound and is having formula:
MLxQyPz, wherein: M is a metal source; L is a ligand selected from the group containing lipophilic phenolic acid; x ranges from 0.5 to 2; Q is a surfactant selected from the group containing quaternary ammonium phosphonium salt and combination thereof; y ranges from 0.5 to 1.5; P is an organophosphorus compound; and z ranges from 0.5 to 1.5.

2 . The hydrocarbon soluble metal composition as claimed in claim 1 , wherein metal source is a water soluble salt of the metal ion capable of reacting with the reaction product of the lipophilic phenolic acid, surfactant and organophosphorus compound.

3 . The hydrocarbon soluble metal composition as claimed in claim 1 , wherein the metal salt is salt of metal selected from the group consisting of vanadium (V), molybdenum (Mo), tungsten (W) and combinations thereof.

4 . The hydrocarbon soluble metal composition as claimed in claim 3 , wherein the metal is present in reduced oxidation state of 4+.

5 . The hydrocarbon soluble metal composition as claimed in claim 1 , wherein the lipophilic phenolic acid is selected from the group consisting of salicylic acid, 1-hydroxy-2-naphthoic acid, 1-hydroxy-2-anthroic acid, 2-hydroxy-3-naphthoic acid, 2-hydroxy-3-anthroic acid, 4-hydroxyisophthalic acid, 2,6-dihydroxybenzoic acid, 5-nitrosalicylic acid, 5-iodosalicylic acid, 5-bromosalicylic acid, 5-iodosalicylic acid, 5-fluorosalicylic acid, 3-chlorosalicylic acid, 4-chlorosalicylic acid, 5-chlorosalicylic acid, and combinations thereof.

6 . The hydrocarbon soluble metal composition as claimed in claim 1 , wherein the surfactant is selected from the group consisting of monoalkyltrimethylammonium salt, dialkyldimethylammonium salt, trialkylmonomethylammonium salt, cetylpyridinium salt, hexamethylenetetramine chloroallyl chloride, tetraoctylammonium bromide, hexadecyltributylphosphonium bromide, tetraphenylphosphonium chloride and combinations thereof.

7 . The hydrocarbon soluble metal composition as claimed in claim 1 , wherein the organophosphorus compound is selected from the group consisting of organophosphine, organophosphine oxide, organophosphinite, organophosphonite, organophosphinate, organophosphite, organophosphonate, organophosphate and organophosphoramidate, organic trithiophosphites, organic thiophosphates, triphenylphosphine sulfide, triphenylphosphine selenide, triphenylphosphine phenylimide, and combinations thereof.

8 . A one-pot process for preparation of a hydrocarbon soluble metal composition comprising reacting a metal source, a lipophilic phenolic acid, a surfactant, an organophosphorus compound and water to obtain a reaction product and drying the reaction product to obtain the hydrocarbon soluble metal composition.

9 . The process as claimed in claim 8 , wherein the process comprises:
(a) reacting the lipophilic phenolic acid and the metal source in presence of water to form a complex; (b) reacting the complex with the surfactant in a hydrocarbon medium at a temperature between 50 to 150° C. for a period in the range of 0.5 hour to 6 hours to form a reaction product; (c) separating an organic phase and aqueous phase of the reaction product and separating the water from the reaction product and drying the reaction product using a solid drying agent to obtain a dried product; and (d) then reacting the dried product with the organophosphorus compound at a temperature between 25 to 50° C. to obtain the hydrocarbon soluble metal composition.

10 . The process as claimed in claim 9 , wherein the hydrocarbon is selected from benzene, toluene, xylenes, heptane, decane, dodecane, and petroleum fraction; wherein the petroleum fraction is selected from kerosene, light cycle oil, and various naphthenic, paraffinic and synthetic diluent oil.

11 . The process as claimed in claim 1 , wherein the solid drying agent is anhydrous sodium sulfate.

12 . The process as claimed in claim 9 , wherein the entire process is performed in aerobic condition.

13 . The process as claimed in claim 9 , wherein the molar stoichiometry of the raw materials used to prepare the hydrocarbon soluble metal composition is:

Lipophilic phenolic acid(s)
1.0 to 3.0 (based on the metal)

Surfactant
0.5 to 1.2 (based on the acid)

Organophosphorus compound
0.1 to 1.5 (based on the metal)

Metal Source
0.5 to 1.5 (based on the acid)

Water
1 to 100.0 (based on the acid)

Hydrocarbon
1 to 100.0 (based on the acid)

Assignees

• Indian Oil Corp Ltd

Inventors

• Balasundaram Murugan
• Xavier Kochappilly Ouseph
• Pulikottil Alex Cheru
• Sau Madhusudan
• Mazumdar Sanjiv Kumar
• RAMAKUMAR Sankara Sri Venkata

Classifications

• C01G31/00

  Compounds of vanadium · CPC title

• C01G41/00 Primary

  Compounds of tungsten · CPC title

• C01G39/00

  Compounds of molybdenum · CPC title

• C10G47/26 Primary

  suspended in the oil, e.g. slurries · CPC title