Annex to Environmental Emergency Plan Part II

Annex IV: Corporate Information

1: Corporate Information

Shenyang new century Chemical Co., Ltd. (Shenyang new discipline) is a high-tech fine chemical enterprise, located in Shenyang City, Liaoning Province, the Department of Sinochem Tianjin Co., Ltd. (Holdings) subsidiary. The company is located in Shenyang, Hangzhou West Shenbei fourth, covers an area of ​​100,000 square meters, construction area of ​​10,000 square meters. Employees 300 people. The company has fixed assets of 66.26 million yuan. Shenyang new century main products are fluorescent brighteners CF-351 #, the annual output of 1,000 tons.

Natural circumstances around 1.1

1.1.1 Location

Shenyang Chemical Co., Ltd. is located in the new era Shenyang City, Liaoning Province Shenbei Chemical Industry Park, covers an area of ​​100,000 square meters, divided into East and West two plants.

1.1.2 Meteorological Conditions

Shenbei located in the northern suburb of Shenyang City, the main characteristics of the climate, winter by the Siberia continental climate control, multi-north, northwest wind, cold, long drying time. Spring and mild autumn weather, time is short, capricious, and high evaporation. Summer impact of oceanic climate, and more southerly and southwesterly winds, according to the district meteorological statistics, the maximum temperature of 34.6 ℃, minimum temperature of -32.7 ℃, annual average temperature of 7.2 ℃, relative humidity of 66%, the annual average precipitation the amount of 702.4 mm, mostly concentrated in the summer. The annual average wind speed 3.3 m / s, the maximum monthly average wind speed of 4.8 m / sec. Throughout the year, the number of smoke days 103 days, mainly in winter.

1.1.3 hydrogeological conditions

Topographic for the features, the region is on the Liao alluvial plain, flat, altitude of 36 to 84 m, the relative height difference of 10 to 40 meters. Causes area topography by high class belong floodplain, loess type deposition, light texture clay to heavy clay, generally covers a height of 10.14 m, soil permeability coefficient of 0.05 to 0.1, plant terrain from southeast to northwest slight inclination, soil geological lithology is distributed from top to bottom:

1 cultivated soil, plants topsoil layer thickness of 1 m;

2 clay, yellow, wet, very loose, thickness of 5 m;

3 clay, gray, wet, loose layer thickness of 8 m;

Sand 4, off-white, containing 20% ​​sand, thickness of 4 m;

5 grit, off-white, relatively loose gravel mixture 20% Park, thickness of 3 m;

6 gravel Park, brown to quartzite, granite, followed by, and mixed with a small amount of coarse gravel, a layer thickness of 6.5 m;

7 clay, brown, slightly wet, loose, thickness of 8.5 m;

8 clay, gray or dark gray, wet, plastic, loosely, a layer thickness of 6 m;

9 clay, yellow, slightly wet, plastic, relatively hard, thickness of 3 m;

10 clay, gray, plastic, thickness of 12 m;

11 pebbles, yellow to quartzite, granite, followed muddy better roundness, an particle diameter of 50 to 70 mm, the maximum of up to 170 mm, mixed with a small amount of grit, thickness of 3 m;

12 wet sandstones, sandstone brown, yellowish gray mottled, surface lithology weathered look, hard, thickness of 1 m.

1.1.4 Surface water situation

Site north of the river, serious long river flows into the body of the Liaohe River pollution, which rises in the east village Shenbei, Ma Gang Qiu Township ditch, flowing in the Temple, water station, New Castle, Huang et al., In the high inflow of kain Liaohe. A total length of 32km, the basin area 112.25km2. As the industrial wastewater discharge for a long time, the high concentration of organic matter deposited continuously, so that the original crystal clear, fish in groups of river, now turned into a mass extinction, stinking Song Da.

1.1.2 surrounding social environment

Environmentally sensitive target distribution plant near the company mainly residents, such as surface water, no rare flora and fauna, no historical sites and nature reserves.

Environmentally sensitive periphery 1-1 goal in the table below:

 

Table 1-1 Surroundings sensitive targets

Environmental category	Serial number	Environmentally sensitive targets	And the orientation of the enterprise	From the nearest factory boundary Distance (m)		Sensitive target nature	Environmental quality standards
surroundings air	1	Liuwangtun	NW	1800		Residential area	Secondary standard in "Ambient Air Quality Standard" (GB3095-1996)
	2	New castle	NE	1700		Residential area
	3	Xinchengzi Zhen	SE	1900		Residential promiscuous area
	4	Residential area	S	800		Residential area
	5	Wuwu Village	ES	1700		Residential area
Surface water	1	Long river	N	1500		river	Class III Standards in Surface Water Environmental Quality Standards (GB3838-2002)
groundwater	1	groundwater	——				Class III Standard in Groundwater Quality Standard (GB14848-93)
noise	—	——	——	——	——		Acoustic Environmental Quality Standards (GB3096-2008) Class 1 and 2 standards

1.2 Sources of environmental pollution accidents

Shenyang Xinji Chemical Co., Ltd. currently has only one production line with an annual output of 1,000 tons of optical brightener CF-351, which mainly includes the following production workshops: chloromethylation workshop, esterification workshop, condensation workshop, brine recovery workshop, drying workshop, etc. .

1.2.1 Production Process Overview

(1) Esterification process: Dichlorobenzyl and triethyl phosphite are added to the esterification kettle to carry out the esterification reaction. After the reaction, the remaining triethyl phosphite is distilled off, and the remaining materials are sent to the condensation workshop. Esterification reaction equation:

(2) Condensation process: Esterate, sulfonate, and dimethyl sulfoxide are added to the condensation reaction kettle, and sodium methoxide is added dropwise from the sodium methoxide metering tank under stirring, and the reaction is completed. The material is conveyed to the filter press by the condensation material conveying pump, the mother hydraulic pressure is to the dimethyl sulfoxide, the mother liquid intermediate storage tank, and the dimethyl sulfoxide mother liquid conveying pump is sent to the solvent recovery workshop. The crude product enters a salting-out kettle for salting out, and then is filtered to obtain a wet cake. The cake is sent to a drying workshop, dried by a rotary flash drying system, and then packed into a warehouse.

 

 

O

‖

O

‖

 

 

CH2P(OCH3)2+2CH3ONa

CHO＋(CH3O)2P－CH2

2

　　　　　　　　　　  

 

‖

O

 

SO3Na

 

 

 

+2CH3OH+2NaOP(OCH3)2

CH＝CH

CH＝CH

　　　　　          

 

④

SO3Na

SO3Na

 

(Note: ④ sodium dimethoxyphosphate. Condensation conversion rate is 96%)

(3) Process brine recovery process: The salt produced by pressure filtration in the salting-out process. Water is added to the salt distribution kettle, and the crude salt produced in the salting-out and pressure filtration processes is added under stirring. Hour, take the supernatant and measure the specific gravity to determine the brine saturation. Add flocculant (add 1/1000 of water) and stir for 1 hour. The material was cooled to 50 ° C and left to stand for 20 hours. Celite was added when the temperature of the feed liquid was cooled to 30 ° C, and stirred for 0.5 hours. Circulate the filter press. When the filtrate is clear, transfer to the receiving tank. The resulting brine is put into production.

(4) Drying process: This workshop includes a set of rotary flash dryer and pelletizing device. The flash-dried materials are qualified and obtained after mixing and packaging. The wet product is granulated and packaged by a granulating device to obtain a product.

(5) Solvent recovery process: The filtrate from the chloromethylation workshop enters the cyclohexane distillation kettle, and the distilled gas is condensed and recovered for reuse. The solvent from the esterification workshop enters the distillation kettle for atmospheric distillation, and the gas is rectified under a certain reflux ratio, and then reused after condensation. The solvent from the condensation workshop enters the DMSO (dimethyl sulfoxide) evaporation kettle under reduced pressure, and the gas is condensed. The solution is pumped to a DMSO (dimethyl sulfoxide) rectification column, which is distilled under reduced pressure. The gas is condensed and reused.

1.2.2 Main production facilities

The main production facilities are shown in Table 1-2

Table 1-2 Shenyang Xinji's existing main production facilities

 

Business Number	Company Name	workshop (production line) (Device)	Name of main facility	Quantity	The main parameters	Status (formal operation, trial production, under construction)	Check for changes during the check period
LN02	Shenyang New Age	CF-351 fluorescent whitening agent production line	Esterification reactor	8	￠1600×1820	Formal operation	No
			Condensation reactor	8	￠1600×1820	Formal operation	No
			Rotary flash dryer	1	60KW	Formal operation	No
			Granulation device	1	15KW	Formal operation	No
			Triethyl distillation kettle	1	￠1400×2400	Formal operation	No
			Various pumps	30	30KW etc.	Formal operation	No
			Distillation device	1	Whole set	Formal operation	No
			Brine recovery device	1	Whole set	Formal operation	No

1.2.3 Process Flow Chart and Sewage Node

See Figure 1-1 for the process flow diagram and sewage discharge nodes.