Methods for the Synthesis of Methacrylic Acid and Methacrylates

2020 ◽  
Vol 20 (5) ◽  
pp. 374-380
Author(s):  
L. L. Gogin ◽  
E. G. Zhizhina ◽  
Z. P. Pai
Keyword(s):  
Methyl Methacrylate ◽  
Methacrylic Acid ◽  
Industrial Production ◽  
Raw Materials ◽  
Hydrocyanic Acid ◽  
Acetone Cyanohydrin ◽  
Ethylene Propylene ◽  
Organic Product

The review provides an analysis of the literature on the existing processes for obtaining an important organic product – methacrylic acid and its ester – methyl methacrylate. The main methods of their industrial production are the synthesis from acetone and hydrocyanic acid (the acetone cyanohydrin method) and catalytic syntheses from petrochemical raw materials –ethylene, propylene and isobutylene.

scholarly journals A Look at the Industrial Production of Olefins Based on Naphtha Feed: A Process Study of a Petrochemical Unit

2021 ◽  
Author(s):  
Reza Davarnejad ◽  
Jamal Azizi ◽  
Shaghayegh Bahari
Keyword(s):  
Natural Gas ◽  
Crude Oil ◽  
Production Process ◽  
Industrial Production ◽  
Raw Materials ◽  
Production Unit ◽  
Industrial Scale ◽  
Ethylene Propylene ◽  
Liquid Feed ◽  
Process Study

Olefins (ethylene, propylene and butadiene) as raw materials play an important role in a lot of chemical and polymer products. In industrial scale, there are several techniques from crude oil, natural gas, coal and methanol for the olefins production. Each of these has some advantages. The petrochemicals with liquid feed can simultaneously produce all of the olefins. Shazand Petrochemical Co. (as the first olefins production unit in Iran) produces all of the olefins using naphtha (light and heavy) feed. In this chapter, the production process of olefins based on naphtha will be studied from the beginning to the end (involving pyrolysis, compression, chilling and fractionation processes).

Stereoassociation between poly(methyl methacrylate) and poly(methacrylic acid)

1975 ◽  
Vol 13 (12) ◽  
pp. 725-729 ◽  
Author(s):  
J. H. G. M. Lohmeyer ◽  
G. Kransen ◽  
Y. Y. Tan ◽  
G. Challa
Keyword(s):  
Methyl Methacrylate ◽  
Methacrylic Acid ◽  
Poly Methyl Methacrylate

AlCl3·XNaCl Complex Compound as Catalyst Synthesis Dichlorophenylphosphine

2013 ◽  
Vol 641-642 ◽  
pp. 128-131 ◽  
Author(s):  
Tian Bo Fan ◽  
Gui Qi An ◽  
Tao Tang ◽  
Yun Yi Lui ◽  
Xiao Han ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Production Rate ◽  
Complex Compound ◽  
Industrial Production ◽  
Raw Materials ◽  
Reference Value ◽  
Raw Material ◽  
Catalyst Synthesis ◽  
Catalyst Amount

Dichlorophenylphosphine(DCPP) was prepared by the catalyst of AlCl3·XNaCl complex using C6H6, PCl3as raw materials. The influences of the catalyst amount, raw material ratio and the choice of extractant on the production rate were studied, as well as the recycling of the catalyst. Fourier transform infrared spectroscopy was employed to characterize the products. The results show that the products by experiments were dichlorophenylphosphine(DCPP). All above have some reference value for the industrial production.

scholarly journals Recultivation of the cavity of the closed open pit Bor

2008 ◽  
Vol 53 (1) ◽  
pp. 45-51
Author(s):  
Jasmina Lilic ◽  
Miroslav Grujic ◽  
Vesna Filipovic ◽  
Miodrag Zikic ◽  
Sasa Stojadinovic
Keyword(s):  
Industrial Production ◽  
Raw Materials ◽  
Open Pit ◽  
Filling Process ◽  
Copper Ore

Copper ore is one of the most important raw materials for industrial production. Increasing demands have been increasing its extraction generally. Shallow deposits with higher copper grade are mostly exhausted and the open pits become deeper, also the amount of overburden and the problems of its disposal are increased. In some cases large quantities of overburden can solve the problem of recultivation of degraded areas. This is the case of recultivation of degraded areas on the location of the closed open pit Bor. Here, the overburden from another open pit, Veliki Krivelj, is disposed into the cavity of the open pit Bor. In this way the overburden is disposed without further area degradation and the cavity is primarily, technically recultivated. When the filling process is finished, waste depot will have a flat top at the level K+450 [2], which is above the neighboring terrain, and the slopes height will vary. This problem was not especially considered up to date, so the experiences in this field are humble. This paper intends to be the basis for further research.

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