CN1082048C

CN1082048C - Theodicarb producing equipment

Info

Publication number: CN1082048C
Application number: CN99112376A
Authority: CN
Inventors: 胡美禄; 朱金璇
Original assignee: SHANDONG BUILDING MATERIALS INDUSTRIAL COLLEGE
Current assignee: SHANDONG BUILDING MATERIALS INDUSTRIAL COLLEGE
Priority date: 1999-08-16
Filing date: 1999-08-16
Publication date: 2002-04-03
Anticipated expiration: 2019-08-16
Also published as: CN1284500A

Abstract

The present invention relates to a producing device of theodicarb. An on-line sulfur dichloride detecting meter is additionally arranged between a sulfur dichloride reactor and a thiodicarb synthesizing kettle to form a sealed reaction system, and therefore, in the process for preparing sulfur dichloride, under sealed conditions, the on-line detector is used for intermediate control to monitor the generating concentration of the sulfur dichloride and the sulfur dichloride is conveyed to the thiodicarb synthesizing kettle after being metered. The contact of the sulfur dichloride and the outside and the leakage of the sulfur dichloride are avoided, the pollution is reduced, and the environment of production workshops is improved. The sulfur dichloride with stability, high activity and high concentration can be obtained by the device, and the quality and the yield of products are increased.

Description

The production equipment of the two prestige of a kind of sulphur

The present invention relates to the production equipment of the two prestige of sulphur.

The exploitation simultaneously in 1977 of two prestige (Thiodicarb) U.S.'s union carbide corporations of sulphur and Switzerland vapour Ba-Jia Ji company, the eighties industrially produces commerical prod by French Luo Na-Rhone-Poulenc, and sells in Chinese market in the early 1990s.Late nineteen seventies early eighties, European patent Ep0025354 (81 years) have just been announced the synthetic route of the two prestige of sulphur, and China in 1998 also once delivered the report of the two prestige synthetic routes of relevant sulphur.Above-mentioned report is laboratory lab scale achievement, and its technology is: under cold condition, with a certain amount of pyridine and dimethylbenzene or CH ₂Cl ₂Mix, add the sulfur dichloride solution for preparing and generate a kind of active intermediate, synthesize the two prestige of sulphur at 20-60 ℃ with the methomyl reaction then.

At the raw material sulfur dichloride described in this preparation technology is a kind of have strong stimulation, deep-etching, volatile poisonous tawny liquid, emits white cigarette in air, and the steam tear-gas stimulates eyes, lung and mucous membrane, and the production plant environment is all very abominable usually.Therefore how to guarantee the sulfur dichloride steady quality in process of production, accurately metering improves product yield, avoids sulfur dichloride leakage, safety in production, is important difficult problem in the suitability for industrialized production.

The object of the present invention is to provide the two prestige production equipments of sulphur of a kind of easy and simple to handle, accurate measurement, operational safety.

Design philosophy of the present invention is that two the synthetic of prestige of dichloride magister of sulfur and sulphur are combined into one, and constitute the production system of a sealing two cover production equipments originally independent of each other.Our solution is between sulfur dichloride reactor 1 and the two prestige synthesis reactors 3 of sulphur, adds an online sulfur dichloride and detects gauger 2, and the three constitutes the reactive system of a sealing.

A cover production equipment that so constitutes, whole process of production is to carry out in the device of a sealing.Promptly, under the condition of sealing, do the intermediate controlled analysis, the generation concentration of control sulfur dichloride by an online detector with the sulfur dichloride of sulphur and chlorine reaction preparation.Freshly prepd sulfur dichloride under the chlorine protection, after an on-line metering device metering, drops into and makes the two prestige of sulphur in the two prestige synthesis reactors of sulphur.Aforesaid operations prepares to the two prestige of sulphur synthetic from sulfur dichloride, whole process all is in the closed system, has avoided sulfur dichloride and extraneous contacting and leakage.In addition, use this device can obtain the sulfur dichloride of high reactivity, high density, and can make sulfur dichloride remain a stable concentration, improved quality product and yield.

In such scheme, said sulfur dichloride detection computations device is to be made of a measuring container 6 and gravitometer 7, and measuring container is in the top of gravitometer and becomes whole with it.The capacity of measuring container is the 20-50 liter, and its aspect ratio is 3-6: 1.Have a fluid intake 8 to link to each other with the feed opening 4 of sulfur dichloride reactor above measuring container, the side has a gas discharge outlet 9 to communicate with the top of sulfur dichloride reactor.Said gravitometer is that below measuring container becomes whole hollow chamber 13 with it, a specific gravity hydrometer 12 is housed in the hollow chamber, in the bottom of hollow chamber two liquid discharge outlets 10,11 are arranged respectively, one of them relief outlet links to each other with the opening for feed 5 of the two prestige synthesis reactors of sulphur.

During use, emit a small amount of sulfur dichloride product and float until specific gravity hydrometer in hollow chamber from the sulfur dichloride reactor, can read the proportion of sulfur dichloride this moment, and judge the degree that the sulfur dichloride preparation feedback carries out in the reactor.When the proportion of reactor product reached the prescribed value of technology, freshly prepd sulfur dichloride had reached this processing requirement, can put into measuring container metering after, drop into the two prestige synthesis reactors of sulphur and go the two prestige of synthetic sulphur.

The invention will be further described in conjunction with the accompanying drawings more below.

Fig. 1 is the two prestige production equipment synoptic diagram of sulphur of the present invention;

Fig. 2 is the structural representation that detects gauger among Fig. 1.

1 is the sulfur dichloride reactor among Fig. 1, and 2 for detecting gauger, and 3 is the two prestige synthesis reactors of sulphur.6 is measuring container among Fig. 2, the 7th, and gravitometer, the fluid intake 8 of measuring container links to each other with the feed opening 4 of sulfur dichloride reactor, and 9 is that gas discharge outlet links to each other with the top of sulfur dichloride reactor.The 13rd, the hollow chamber in the gravitometer, the 12nd, be contained in the specific gravity hydrometer in the hollow chamber, 10,11 is two liquid discharge outlets, one of them links to each other with the opening for feed 5 of the two prestige synthesis reactors of sulphur, so constitutes the two prestige production equipments of the complete sulphur of a cover.

Advantage of the present invention is clearly, owing to add a detection gauger between sulfur dichloride reactor and the two prestige synthesis reactors of sulphur, forms the production system of a sealing.Can be under closed state, the generation concentration of control sulfur dichloride, and can accurately measure in the two prestige synthesis reactors of back input sulphur and carry out the two prestige building-up reactionss of sulphur.Reduced sulfur dichloride so widely and leaked, protected the production environment of production plant effectively operator's injury.It is stable that this device of while can also make sulfur dichloride remain high reactivity, high density and concentration maintenance.Thereby can improve the quality and the yield of product.The present invention is simple in structure, easy and simple to handle, has simplified production technique, has improved production efficiency, has tangible economic benefit and social benefit.

Claims

1, the production equipment of the two prestige of a kind of sulphur, comprise the two prestige synthesis reactors of sulfur dichloride reactor and sulphur, it is characterized in that this device is to add an online sulfur dichloride to detect gauger (2) between sulfur dichloride reactor (1) and the two prestige synthesis reactors (3) of sulphur, constitutes the reactive system of a sealing.

2, according to the described production equipment of claim 1, it is characterized in that it is to be made of a measuring container (6) and gravitometer (7) that said sulfur dichloride detects gauger, measuring container is in the top of gravitometer and becomes whole with it, above measuring container, there is a fluid intake (8) to link to each other with the feed opening (4) of sulfur dichloride reactor, the side has a gas discharge outlet (9) to communicate with the top of sulfur dichloride reactor, said gravitometer is that below measuring container becomes whole hollow chamber (13) with it, a specific gravity hydrometer (12) is housed in the hollow chamber, in the bottom of hollow chamber two liquid discharge outlets (10 are arranged respectively, 11), one of them relief outlet links to each other with the opening for feed (5) of the two prestige synthesis reactors of sulphur.

3, according to claim 1,2 described production equipments, it is characterized in that said measuring container has the capacity that 20-50 rises, its aspect ratio is 3-6: 1.