Patents
Patents for G05D 21 - Control of chemical or physico-chemical variables, e.g. ph-value (1,435)
04/2013
04/25/2013WO2013057302A1 Device and method for controlling, analyzing and managing phases of conservation and/or processing of food in a mobile or fixed closed space
04/25/2013CA2852650A1 Device and method for controlling, analyzing and managing phases of conservation and/or processing of food in a mobile or fixed closed space
04/24/2013CN102129257B Extraction process field online PH detection and control system
04/24/2013CN101676220B Ozonated water flow and concentration control apparatus and method
04/18/2013DE102011115896A1 Vorrichtung und Verfahren zur Prozessregelung Apparatus and method for process control
04/17/2013CN103048994A Apparatus and method for process control
04/11/2013CA2850231A1 Method and apparatus for using velocity profile measurements in recovering bitumen from a coarse tailings line
03/2013
03/28/2013WO2012173802A3 APPARATUS AND METHOD FOR pH CONTROL IN WASTEWATER TREATMENT PLANTS AND OTHER SYSTEMS
03/27/2013CN202838053U Metallically-sprayed pH-value full-automatic detection monitoring automatic medicament supplementing apparatus
03/20/2013CN202815614U Circulating water medicine-adding automatic control system
03/20/2013CN102981523A Online determination and control method for concentrations of various acids in aluminum etching solution
02/2013
02/27/2013CN202754862U Chromate waste water treatment and recovery device
02/20/2013EP2559474A1 Method and device for reducing the quantity of pollutants in exhaust gases
02/13/2013CN102928541A Process analysis system with automatic liquid sample preparation and connection to process control system
02/07/2013DE102011109188A1 Regulating pH of water at swimming pool, comprises e.g. placing electrolytic cell in measuring bridge, passing actual voltage to control and regulating device, comparing actual voltage with voltage values and controlling device to change pH
01/2013
01/31/2013US20130028043 Reclaim function for semiconductor processing system
01/30/2013CN101614431B Control circuit of air conditioner
01/23/2013CN202694170U 冷却水净化处理装置 Cooling water purification unit
01/23/2013CN202683065U Blind zone detecting device applied to pH control process of desulphurization system
01/23/2013CN102890516A System and method for controlling generated linear pH gradient solution
01/17/2013WO2013008918A1 Method for treating acidic gas
01/17/2013WO2013006974A1 Real-time gas monitoring method and system
01/17/2013CA2835731A1 Real-time gas monitoring method and system
01/16/2013CN202671310U Accurate aerating system for sewage treatment
01/16/2013CN102880199A Full-automatic PH (potential of hydrogen) value detecting and monitoring and automatic chemical replenishing system for metal spraying
01/08/2013CA2609705C Density measurement with gamma backscattering
12/2012
12/27/2012WO2012175701A1 Method for producing biogas
12/26/2012CN101923361B Water-saving control method
12/26/2012CN101815810B Method and device for preventing corrosion in hot water systems
12/20/2012WO2012173802A2 APPARATUS AND METHOD FOR pH CONTROL IN WASTEWATER TREATMENT PLANTS AND OTHER SYSTEMS
12/19/2012CN102830727A Optimized control system and method of synthetic ammonia hydrogen nitrogen ratio
12/19/2012CN102830726A Allocating pool and allocating method, device and system of feed liquid
12/12/2012CN202600509U Acid value automatic control device for materials used in rare earth separation
12/12/2012CN102819274A Blind zone detection method in process of controlling pH value of desulfurization system
12/05/2012CN202578594U Fast mud mixing device
11/2012
11/21/2012CN102276119B System and method for controlling optimized denitrification process in low-carbon-nitrogen-ratio rural waste water treatment
11/08/2012WO2012151374A1 Quality certification of oxygenated gasoline
11/08/2012CA2834263A1 Quality certification of oxygenated gasoline
11/07/2012CN102249391B Anion and cation bed regeneration sewage treatment pH control system
10/2012
10/31/2012CN102759933A Blind zone detection device applied to pH value control process of desulfurization system
10/26/2012WO2012142989A1 Metering system for corrosion inhibitors in a water-hydraulic hydraulic system
10/24/2012CN102743972A pH value controller of limestone slurry of desulfurization system
10/17/2012CN101888979B Method for operating a water softening system having two calibration characteristics and associated water softening system
10/10/2012EP2507673A1 Application of visbreaker analysis tools to optimize performance
10/10/2012CN202479156U Online automatic cleaning device of pH electrode
10/10/2012CN101875668B Method for continuously adjusting pH value of dilute aqueous agent in glyphosate production process
09/2012
09/27/2012DE102011005995A1 Replenishing acid in cleaning bath during cleaning polycrystalline silicon fragments comprises measuring concentrations of acid and determining average acid consumption
09/26/2012CN202453749U Automatic feeding control system for aqueous-solution dye production
09/26/2012CN202453748U Novel pH value balancing instrument liquid preparing system
09/26/2012CN101472672B Lithium ion-selective membrane
09/05/2012CN202421910U Automatic control device for pH (potential of hydrogen) value of condensed water at top of distillation tower
09/05/2012CN101813949B Electrochemical method for regulating pH value of solution in situ
07/2012
07/18/2012EP1782134B1 Optimized air pollution control
07/18/2012CN102591374A Automatic control device for pH value of distillation tower top condensate
07/12/2012WO2012092666A1 Apparatus and method for controlling autotroph cultivation
07/12/2012CA2822930A1 Apparatus and method for controlling autotroph cultivation
07/11/2012CN202331230U 一种新型的组合式ph值自动平衡配液系统 A new modular automatic balancing ph value dosing system
07/04/2012EP1859330B1 Apparatuses and methods for manipulating droplets on a printed circuit board
07/04/2012CN101861556B Control system for industrial water system and method for its use
07/04/2012CN101528610B Improved method for chemistry control in cooling systems
06/2012
06/27/2012CN102520739A PH (potential of hydrogen) value control process for coating core pulp of white cardboards
06/13/2012CN102497961A Apparatus and operating systems for manufacturing impregnated wood
06/13/2012CN102495647A PH (Potential of Hydrogen) control system and application thereof
06/06/2012CN101923360B Water-saving control device
06/06/2012CN101451442B Control method and control device for controlling auxiliary material addition to tailings
05/2012
05/31/2012WO2012069751A1 Process and device for regulating the air demand of extractive merox units
05/23/2012CN101402488B CAST segmenting water feed reinforced denitrification control method
05/09/2012CN202212101U Flue gas desulfurization device with double pH (potential of hydrogen) value adjustability
05/02/2012CN101639690B System and method for controlling reaction of alga
04/2012
04/26/2012CA2746152A1 Dynamic control system and method for controlled atmosphere room
04/25/2012CN202205106U 淀粉乳pH值在线调整监控系统 Starch milk line adjustment of pH Monitoring System
04/25/2012CN102426466A 基于多点控制的发电机内冷水水质监测控制系统 Based on multi-point control of the generator inside the cold water quality monitoring and control system
04/11/2012CN102411381A 节水控制装置 Water control device
04/04/2012EP2435223A1 Apparatus and operating systems for manufacturing impregnated wood
03/2012
03/28/2012CN101805050B Method and system for controlling coagulant dosing through on-line prediction of turbidity after flocculation water sedimentation
03/21/2012CN102385398A Automatic alkali concentration control device
03/07/2012EP2426423A2 Device and system for treating water for water-bearing circulation systems
02/2012
02/22/2012CN101833341B 碱性蚀刻ph值自动控制系统及其控制方法 Alkaline etching ph value of the automatic control system and control method
02/16/2012WO2012020154A1 Monitoring and control system and method for a distillation column
02/15/2012CN102351223A Automatic control method of Rp value of alumina digestion outlet in the Bayer process
01/2012
01/25/2012CN102334022A Control system for monitoring localized corrosion in an industrial water system
01/18/2012EP2407848A1 Uses of a device for varying the pH of a solution
01/11/2012EP2403643A2 Method for operating a water softening system comprising target value control by a water removal station
11/2011
11/23/2011CN102249391A Anion and cation bed regeneration sewage treatment pH control system
11/16/2011CN101493705B Acid-alkali neutralizing controller
11/15/2011CA2577090C Model predictive control of air pollution control processes
11/09/2011CN202033673U Automatic PH (potential hydrogen) value adjusting system for fermentation tank
11/08/2011CA2403274C Use of control matrix for cooling water systems control
11/02/2011EP2382452A1 Control system for monitoring localized corrosion in an industrial water system
11/02/2011CN101200326B Device for adjusting pH value of waste water
09/2011
09/20/2011CA2577088C Optimized air pollution control
09/07/2011EP0948761B2 On-line control of a chemical process plant
08/2011
08/24/2011EP2358861A1 Novel method for cultivating yeasts of the yarrowia genus
08/02/2011US7988940 Selective catalytic reduction system and process for treating NOx emissions using a zinc or titanium promoted palladium-zirconium catalyst
07/2011
07/27/2011CN101624704B Automatic control method and automatic control device of water valve of surface treatment rinsing bath
07/27/2011CN101451443B Control method and control device for controlling water addition to tailings
07/20/2011CN201903794U Ethylene unit process water pH value control system
07/20/2011CN102131583A Interruption of measured variable analyses in automatic water softening system when defined operating situations are present
07/20/2011CN102129257A Extraction process field online PH detection and control system
07/12/2011US7976805 Selective catalytic reduction system and process for treating NOx emissions using a palladium and rhodium or ruthenium catalyst
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